Ezequiel Echer

Pós-doutorado

Formação complementar

Idiomas

Áreas de atuação

Organização de eventos

Participação em eventos

Participação em bancas

Orientou

Produções bibliográficas

• Echer, E. ; FRANCO, A.M.S. ; DA COSTA JR., E. ; HAJRA, R. ; BOLZAN, M.J.A. . Magnetic Decrease Rates and Their Relationship with Solar Wind Parameters of High-Heliographic Latitude High-Speed Streams during Solar Minima: Ulysses Observations. ADVANCES IN SPACE RESEARCH , v. 75, p. 6500-6513, 2025.

• MARQUES DE SOUZA FRANCO, ADRIANE ; DE OLIVEIRA, ISABELA ; FRAENZ, MARKUS ; Echer, Ezequiel ; ALVES BOLZAN, MAURICIO JOSÉ ; DE MOURA CASTRO NETO, JOÃO CARLOS . Wave Mode Occurrence Distribution Around Venus: A VEX Statistical Study. BRAZILIAN JOURNAL OF PHYSICS , v. 55, p. 1, 2025.

• Guarnieri, Fernando L. ; Tsurutani, Bruce T. ; HAJRA, RAJKUMAR ; Echer, Ezequiel ; Lakhina, Gurbax S. . NORAD tracking of the 2022 February Starlink satellites and the immediate loss of 32 satellites. NONLINEAR PROCESSES IN GEOPHYSICS (ONLINE) , v. 32, p. 75-88, 2025.

• HAJRA, RAJKUMAR ; Tsurutani, Bruce T. ; LU, QUANMING ; Lakhina, Gurbax S. ; DU, AIMIN ; Echer, Ezequiel ; FRANCO, ADRIANE M. S. ; BOLZAN, MAURICIO J. A. ; GAO, XINLIANG . Ultra-relativistic Electron Acceleration during High-intensity Long-duration Continuous Auroral Electrojet Activity Events. The Astrophysical Journal , v. 965, p. 146, 2024.

• FRANCO, ADRIANE M. S. ; Echer, Ezequiel ; FRÄNZ, MARKUS ; BOLZAN, MAURICIO J. A. . Intermittent plasma turbulence in the Martian plasma environment. Reviews of Modern Plasma Physics , v. 8, p. 1-12, 2024.

• MUNAKATA, K. ; HAYASHI, Y. ; KOZAI, M. ; KATO, C. ; MIYASHITA, N. ; KATAOKA, R. ; KADOKURA, A. ; MIYAKE, S. ; IWAI, K. ; Echer, E. ; Dal Lago, A. ; ROCKENBACH, M. ; SCHUCH, N. J. ; BAGESTON, J. V. ; BRAGA, C. R. ; AL JASSAR, H. K. ; SHARMA, M. M. ; DULDIG, M. L. ; HUMBLE, J. E. ; SABBAH, I. ; et.al . Global Analysis of the Extended Decreases in Cosmic Rays Observed with Worldwide Networks of Neutron Monitors and Muon Detectors: Temporal Variation of the Rigidity Spectrum and Its Implication. The Astrophysical Journal , v. 974, p. 283, 2024.

• JÁCOME, H. R. P. ; Zarka, P. ; LOUIS, C. K. ; MARQUES, M. S. ; Echer, E. ; LAMY, L. . Effect of the Earth?s declination variation on characteristics of Jovian decametric radio emissions. ASTRONOMY & ASTROPHYSICS , v. 689, p. A308, 2024.

• DE SOUZA ECHER, MARIZA PEREIRA ; DOMINGUES, MARGARETE OLIVEIRA ; YAMASHITA, CRISTINA SAYURI ; Echer, Ezequiel ; BRUM, CHRISTIANO GARNETT MARQUES ; MENDES, ODIM ; DA SILVA, MARLOS ROCKENBACH . Multiscale Aspects of the Solar Indexes Mg II, F10.7 and Sunspot Number. SOLAR PHYSICS , v. 299, p. 1-14, 2024.

• OLIVEIRA, DENNY M. ; ALLEN, ROBERT C. ; ALVES, LIVIA R. ; BLAKE, SÉAN P. ; CARTER, BRETT A. ; CHAKRABARTY, DIBYENDU ; D?ANGELO, GIULIA ; DELANO, KEVIN ; Echer, Ezequiel ; FERRADAS, CRISTIAN P. ; FINLEY, MATT G. ; GALLARDO'LACOURT, BEA ; GERSHMAN, DAN ; GJERLOEV, JESPER W. ; HABARULEMA, JOHN BOSCO ; HARTINGER, MICHAEL D. ; HAJRA, RAJKUMAR ; HAYAKAWA, HISASHI ; JUUSOLA, LIISA ; LAUNDAL, KARL M. ; et.al . Predicting Interplanetary Shock Occurrence for Solar Cycle 25: Opportunities and Challenges in Space Weather Research. SPACE WEATHER-THE INTERNATIONAL JOURNAL OF RESEARCH AND APPLICATIONS , v. 22, p. 1-20, 2024.

• GIRGIS, KIROLOSSE M. ; HADA, TOHRU ; YOSHIKAWA, AKIMASA ; MATSUKIYO, SHUICHI ; CHIAN, ABRAHAM C.'L. ; Echer, Ezequiel . Inner Radiation Belt Simulations During the Successive Geomagnetic Storm Event of February 2022. SPACE WEATHER-THE INTERNATIONAL JOURNAL OF RESEARCH AND APPLICATIONS , v. 22, p. 1-11, 2024.

• CHIAN, ABRAHAM ; MIRANDA, RODRIGO ; BERTUCCI, CESAR ; BLANCO-CANO, XÓCHITL ; BOROVSKY, JOE ; Dasso, Sergio ; Echer, Ezequiel ; FRANCO, ADRIANE ; GIRGIS, KIROLOSSE M. ; GONZÁLEZ-ESPARZA, J. AMÉRICO ; HADA, TOHRU ; HASEGAWA, HIROSHI ; HSIEH, SYAU-YUN ; KAJDIč ; MAZELLE, CHRISTIAN ; REMPEL, ERICO ; ROJAS-CASTILLO, DIANA ; SÁNCHEZ-CANO, BEATRIZ ; SIBECK, DAVID ; STEPANOVA, MARINA ; et.al . Terrestrial and Martian space weather: A complex systems approach. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS , v. 259, p. 106253, 2024.

• HAJRA, RAJKUMAR ; Echer, Ezequiel ; FRANCO, ADRIANE MARQUES DE SOUZA ; BOLZAN, MAURICIO JOSÉ ALVES . Earth?s magnetotail variability during supersubstorms (SSSs): A study on solar wind-magnetosphere-ionosphere coupling. ADVANCES IN SPACE RESEARCH , v. 72, p. 1208-1223, 2023.

• Echer, Ezequiel ; DE SOUZA FRANCO, ADRIANE MARQUES ; MAGALHÃES, FABÍOLA PINHO ; BOLZAN, MAURICIO J.A. ; HAJRA, RAJKUMAR . Study of Neptune dayside magnetosheath fluctuations during Voyager-2 flyby. ADVANCES IN SPACE RESEARCH , v. 71, p. 3468-3478, 2023.

• Echer, Ezequiel ; LUCAS, Aline de ; HAJRA, RAJKUMAR ; FRANCO, ADRIANE MARQUES DE SOUZA ; BOLZAN, MAURICIO J. A. ; NASCIMENTO, LUIS EDUARDO SALES DO . Geomagnetic Activity Following Interplanetary Shocks in Solar Cycles 23 and 24. BRAZILIAN JOURNAL OF PHYSICS , v. 53, p. 1, 2023.

• FRANCO, ADRIANE MARQUES DE SOUZA ; Echer, Ezequiel ; FRAENZ, MARKUS ; BOLZAN, MAURICIO JOSÉ ALVES . ULF Waves Propagating Through the Martian Magnetosheath into the Ionosphere: A Statistical Study Using Mars Express Observations. BRAZILIAN JOURNAL OF PHYSICS , v. 53, p. 1, 2023.

• JÁCOME, H.R.P. ; Echer, E. ; MARQUES, M.S. . Uma introdução à interação eletrodinâmica entre Júpiter e os satélites Galileanos. REVISTA BRASILEIRA DE ENSINO DE FÍSICA (ONLINE) , v. 45, p. 1, 2023.

• JÁCOME, H. R. P. ; MARQUES, M. S. ; Zarka, P. ; Echer, E. ; LAMY, L. ; LOUIS, C. K. . Search for Jovian decametric emission induced by Europa on the extensive Nançay Decameter Array catalog. ASTRONOMY & ASTROPHYSICS , v. 665, p. A67, 2022.

• EVANGELISTA, HEITOR ; ECHER, MARIZA P. DE SOUZA ; Echer, Ezequiel . Using wavelet decomposition method to retrieve the solar and the global air temperature signals from Greenland, Andes and East Antarctica δ18O ice core records. ANAIS DA ACADEMIA BRASILEIRA DE CIÊNCIAS , v. 94, p. 1-15, 2022.

• MUNAKATA, K. ; KOZAI, M. ; KATO, C. ; HAYASHI, Y. ; KATAOKA, R. ; KADOKURA, A. ; TOKUMARU, M. ; MENDONÇA, R. R. S. ; Echer, E. ; LAGO, A. DAL ; ROCKENBACH, M. ; SCHUCH, N. J. ; BAGESTON, J. V. ; BRAGA, C. R. ; JASSAR, H. K. AL ; SHARMA, M. M. ; DULDIG, M. L. ; HUMBLE, J. E. ; SABBAH, I. ; EVENSON, P. ; et.al . Large-amplitude Bidirectional Anisotropy of Cosmic-Ray Intensity Observed with Worldwide Networks of Ground-based Neutron Monitors and Muon Detectors in 2021 November. The Astrophysical Journal , v. 938, p. 30, 2022.

• Echer, E. ; Gonzalez, W.D. . Relation between Dst* and interplanetary parameters during single-step geomagnetic storms. ADVANCES IN SPACE RESEARCH , v. 70, p. 2830-2841, 2022.

• MENDES, ODIM ; ADHIKARI, BINOD ; DOMINGUES, MARGARETE OLIVEIRA ; Echer, Ezequiel ; TAKESHI, RODRIGO SEO . Interrelationships of Similar Magnetic Effects at Low and High Latitudes During High-Intensity Long-Duration Auroral Activity Events: Case Studies. BRAZILIAN JOURNAL OF PHYSICS , v. 52, p. 1, 2022.

• BOLZAN, MAURICIO JOSÉ ALVES ; Echer, Ezequiel ; DE SOUZA FRANCO, ADRIANE MARQUES ; HAJRA, RAJKUMAR . Identification of the planetary magnetosphere boundaries with the wavelet multi-resolution analysis. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS , v. 230, p. 105842, 2022.

• JAUER, P. R. ; WANG, C. ; Echer, E. ; SOUZA, V. M. ; DA SILVA, L. A. ; MARCHEZI, J. P. ; ALVES, L. R. ; ALVES, M. V. ; DOUGLAS, S. ; LOESCH, C. ; LIU, Z. ; HUI, L. ; VIEIRA, L. E. A. ; Gonzalez, W. D. ; DENARDINI, C. M. ; MEDEIROS, C. ; COSTA, J. E. R. . Global Modeling of the Inner Magnetosphere Under the Influence of a Magnetic Cloud Associated With an Interplanetary Coronal Mass Ejection: Energy Conversion and Ultra-Low Frequency Wave Activity. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS , v. 127, p. 1, 2022.

• Echer, Ezequiel ; FRANCO, ADRIANE MARQUES DE SOUZA ; DA COSTA JUNIOR, EDIO ; HAJRA, RAJKUMAR ; BOLZAN, MAURICIO JOSÉ ALVES . Solar-Wind High-Speed Stream (HSS) Alfvén Wave Fluctuations at High Heliospheric Latitudes: Ulysses Observations During Two Solar-Cycle Minima. SOLAR PHYSICS , v. 297, p. 1, 2022.

• DE SOUZA ECHER, MARIZA PEREIRA ; Echer, Ezequiel ; DOMINGUES, MARGARETE OLIVEIRA ; MENDES, ODIM ; SEO, RODRIGO TAKESHI ; GONZALEZ, WALTER . Wavelet analysis of low frequency magnetic field fluctuations in the Jupiter?s magnetotail. ADVANCES IN SPACE RESEARCH , v. 68, p. 246-258, 2021.

• MARQUES DE SOUZA FRANCO, ADRIANE ; HAJRA, RAJKUMAR ; Echer, Ezequiel ; BOLZAN, MAURICIO JOSÉ ALVES . Seasonal features of geomagnetic activity: a study on the solar activity dependence. ANNALES GEOPHYSICAE , v. 39, p. 929-943, 2021.

• SOUZA ECHER, MARIZA PEREIRA DE ; DOMINGUES, MARGARETE OLIVEIRA ; Echer, Ezequiel ; MENDES, ODIM ; GONZALEZ, WALTER . Spectral Analysis on the Variability of Surface Pressure and Wind on Mars: Viking Lander 2 Observations Revisited. BRAZILIAN JOURNAL OF PHYSICS , v. 51, p. 1727-1734, 2021.

• OLIVEIRA, I. ; FRÄNZ, M. ; Echer, E. ; FRANCO, A. . Advection of Martian Crustal Magnetic Fields by Ionospheric Plasma Flow Observed by the MAVEN Spacecraft. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS , v. 126, p. 1-13, 2021.

• HAJRA, RAJKUMAR ; FRANCO, ADRIANE ; Echer, Ezequiel ; BOLZAN, MAURICIO . Long-Term Variations of the Geomagnetic Activity: A Comparison Between the Strong and Weak Solar Activity Cycles and Implications for the Space Climate. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS , v. 126, p. 1-14, 2021.

• Zarka, P. ; MAGALHÃES, F. P. ; MARQUES, M. S. ; LOUIS, C. K. ; Echer, E. ; LAMY, L. ; CECCONI, B. ; PRANGÉ, R. . Jupiter's Auroral Radio Emissions Observed by Cassini: Rotational Versus Solar Wind Control, and Components Identification. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS , v. 126, p. 1-24, 2021.

• ROSA OLIVEIRA, ROSEMEIRE APARECIDA ; DA SILVA OLIVEIRA, MARCOS WILLIAM ; OJEDA-GONZÁLEZ, ARIAN ; GIL PILLAT, VALDIR ; Echer, Ezequiel ; NIEVES-CHINCHILLA, TERESA . Resolving the Ambiguity of a Magnetic Cloud?s Orientation Caused by Minimum Variance Analysis Comparing it with a Force-Free Model. SOLAR PHYSICS , v. 296, p. 182, 2021.

• KIHARA, W. ; MUNAKATA, K. ; KATO, C. ; KATAOKA, R. ; KADOKURA, A. ; MIYAKE, S. ; KOZAI, M. ; KUWABARA, T. ; TOKUMARU, M. ; MENDONÇA, R. R. S. ; Echer, E. ; LAGO, A. DAL ; ROCKENBACH, M. ; SCHUCH, N. J. ; BAGESTON, J. V. ; BRAGA, C. R. ; AL JASSAR, H. K. ; SHARMA, M. M. ; DULDIG, M. L. ; HUMBLE, J. E. ; et.al . A Peculiar ICME Event in August 2018 Observed With the Global Muon Detector Network. SPACE WEATHER-THE INTERNATIONAL JOURNAL OF RESEARCH AND APPLICATIONS , v. 19, p. 1, 2021.

• GONÇALVES, ÍTALO G. ; Echer, Ezequiel ; FRIGO, EVERTON . Sunspot cycle prediction using Warped Gaussian process regression. ADVANCES IN SPACE RESEARCH , v. 65, p. 677-683, 2020.

• FRANCO, A.M.S. ; FRÄNZ, M. ; Echer, E. ; BOLZAN, M.J.A. . Wavelet analysis of low frequency plasma oscillations in the magnetosheath of Mars. ADVANCES IN SPACE RESEARCH , v. 65, p. 2090-2098, 2020.

• FRANCO, A.M.S. ; FRÄNZ, M. ; Echer, E. ; BOLZAN, M.J.A. ; ZHANG, T.L. . The correlation length of ULF waves around Venus: VEX observations. PLANETARY AND SPACE SCIENCE , v. 180, p. 104761, 2020.

• Echer, E. ; BOLZAN, M.J.A. ; FRANCO, A.M.S. . Statistical analysis of solar wind parameter variation with heliospheric distance: Ulysses observations in the ecliptic plane. ADVANCES IN SPACE RESEARCH , v. 65, p. 2846-2856, 2020.

• BOLZAN, M.J.A. ; FRANCO, A.M.S. ; Echer, E. . A wavelet based method to remove the long term periodicities of geophysical time series. ADVANCES IN SPACE RESEARCH , v. 66, p. 299-306, 2020.

• BRAGA, CARLOS ROBERTO ; VOURLIDAS, ANGELOS ; STENBORG, GUILLERMO ; DAL LAGO, ALISSON ; MENDONÇA, RAFAEL RODRIGUES SOUZA DE ; Echer, Ezequiel . Predicting the Time of Arrival of Coronal Mass Ejections at Earth From Heliospheric Imaging Observations. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS , v. 125, p. 1-25, 2020.

• ROUSSOS, ELIAS ; KRUPP, NORBERT ; DIALYNAS, KONSTANTINOS ; KOLLMANN, PETER ; PARANICAS, CHRISTOPHER ; Echer, Ezequiel ; MITCHELL, DONALD G. ; KRIMIGIS, STAMATIOS M. . Jovian Cosmic-Ray Protons in the Heliosphere: Constraints by Observations. The Astrophysical Journal , v. 871, p. 223, 2019.

• DE SOUZA ECHER, MARIZA PEREIRA ; DOMINGUES, MARGARETE OLIVEIRA ; MENDES, ODIM ; Echer, Ezequiel ; GONZALEZ, WALTER . Variability Aspects of the Mars Surface Data from Summer to Winter Solstice: Viking Lander 1 Observations Revisited. BRAZILIAN JOURNAL OF PHYSICS , v. 49, p. 89-96, 2019.

• Echer, E. . Solar wind and interplanetary shock parameters near Saturn's orbit (∼10 AU). PLANETARY AND SPACE SCIENCE , v. 165, p. 210-220, 2019.

• Echer, E. . Interplanetary Shock Parameters Near Jupiter's Orbit. GEOPHYSICAL RESEARCH LETTERS , v. 46, p. 2019GL082126, 2019.

• JAUER, P. R. ; WANG, C. ; SOUZA, V. M. ; ALVES, M. V. ; ALVES, L. R. ; PÁDUA, M. B. ; MARCHEZI, J. P. ; SILVA, DA L. A. ; LIU, Z. ; LI, H. ; VIEIRA, L. E. A. ; LAGO, A. DAL ; Gonzalez, W. D. ; Echer, E. ; MEDEIROS, C. ; COSTA, J. E. R. ; DENARDINI, C. M. . A Global Magnetohydrodynamic Simulation Study of Ultra-low-frequency Wave Activity in the Inner Magnetosphere: Corotating Interaction Region + Alfvénic Fluctuations. The Astrophysical Journal , v. 886, p. 59, 2019.

• , NATIONAL INSTITUTE FOR SPACE RESEARCH (INPE), SAO JOSE DOS CAMPOS, BRAZIL ; MARQUES DE SOUZA FRANCO, ADRIANE ; FRÄNZ, MARKUS ; Echer, Ezequiel ; JOSÉ ALVES BOLZAN, MAURICIO ; , MAX PLANCK INSTITUTE FOR SOLAR SYSTEM RESEARCH, GOETTINGEN, GERMANY ; , FEDERAL UNIVERSITY OF JATAÍ, JATAÍ, BRAZIL . Correlation length around Mars: a statistical study with MEX and MAVEN observations. Earth and Planetary Physics , v. 3, p. 1-10, 2019.

• MENDONÇA, R. R. S. ; WANG, C. ; BRAGA, C. R. ; Echer, E. ; Dal Lago, A. ; COSTA, J. E. R. ; MUNAKATA, K. ; LI, H. ; LIU, Z. ; RAULIN, J.'P. ; KUWABARA, T. ; KOZAI, M. ; KATO, C. ; ROCKENBACH, M. ; SCHUCH, N. J. ; AL JASSAR, H. K. ; SHARMA, M. M. ; TOKUMARU, M. ; DULDIG, M. L. ; HUMBLE, J. E. ; et.al . Analysis of Cosmic Rays' Atmospheric Effects and Their Relationships to Cutoff Rigidity and Zenith Angle Using Global Muon Detector Network Data. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS , v. 124, p. 9791-9813, 2019.

• MARQUES DE SOUZA FRANCO, ADRIANE ; Echer, Ezequiel ; JOSÉ ALVES BOLZAN, MAURICIO . Wavelet analysis of the magnetotail response to solar wind fluctuations during HILDCAA events. ANNALES GEOPHYSICAE , v. 37, p. 919-929, 2019.

• Guarnieri, Fernando L. ; Tsurutani, Bruce T. ; VIEIRA, LUIS E. A. ; HAJRA, RAJKUMAR ; Echer, Ezequiel ; MANNUCCI, ANTHONY J. ; Gonzalez, Walter D. . A correlation study regarding the AE index and ACE solar wind data for Alfvénic intervals using wavelet decomposition and reconstruction. NONLINEAR PROCESSES IN GEOPHYSICS (ONLINE) , v. 25, p. 67-76, 2018.

• MARQUES DE SOUZA, ADRIANE ; Echer, Ezequiel ; BOLZAN, MAURICIO JOSÉ ALVES ; HAJRA, RAJKUMAR . Cross-correlation and cross-wavelet analyses of the solar wind IMF <i>B</i><sub><i>z</i></sub> and auroral electrojet index AE coupling during HILDCAAs. ANNALES GEOPHYSICAE , v. 36, p. 205-211, 2018.

• Tsurutani, Bruce T. ; Lakhina, Gurbax S. ; Echer, Ezequiel ; HAJRA, RAJKUMAR ; NAYAK, CHINMAYA ; MANNUCCI, ANTHONY J. ; MENG, XING . Comment on -Modeling Extreme -Carrington-Type- Space Weather Events Using Three-Dimensional Global MHD Simulations- by C. M. Ngwira, A. Pulkkinen, M. M. Kuznetsova, and A. Glocer-. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS , v. 123, p. 1, 2018.

• Zarka, P. ; MARQUES, M. S. ; LOUIS, C. ; RYABOV, V. B. ; LAMY, L. ; Echer, E. ; CECCONI, B. . Jupiter radio emission induced by Ganymede and consequences for the radio detection of exoplanets. ASTRONOMY & ASTROPHYSICS , v. 618, p. A84, 2018.

• RAWAT, RASHMI ; Echer, E. ; Gonzalez, W. D. . How Different Are the Solar Wind-Interplanetary Conditions and the Consequent Geomagnetic Activity During the Ascending and Early Descending Phases of the Solar Cycles 23 and 24?. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS , v. 123, p. 6621-6638, 2018.

• MENDES, ODIM ; DOMINGUES, MARGARETE OLIVEIRA ; Echer, Ezequiel ; HAJRA, RAJKUMAR ; MENCONI, VARLEI EVERTON . Characterization of high-intensity, long-duration continuous auroral activity (HILDCAA) events using recurrence quantification analysis. NONLINEAR PROCESSES IN GEOPHYSICS (ONLINE) , v. 24, p. 407-417, 2017.

• BRAGA, CARLOS ROBERTO ; DAL LAGO, ALISSON ; Echer, Ezequiel ; STENBORG, GUILLERMO ; SOUZA DE MENDONÇA, RAFAEL RODRIGUES . Pseudo-automatic Determination of Coronal Mass Ejections? Kinematics in 3D. The Astrophysical Journal , v. 842, p. 134, 2017.

• MARQUES, M. S. ; Zarka, P. ; Echer, E. ; RYABOV, V. B. ; ALVES, M. V. ; Denis, L. ; COFFRE, A. . Statistical analysis of 26 yr of observations of decametric radio emissions from Jupiter. ASTRONOMY & ASTROPHYSICS , v. 604, p. A17, 2017.

• HAJRA, RAJKUMAR ; Tsurutani, Bruce T. ; BRUM, CHRISTIANO G. M. ; Echer, Ezequiel . High-speed solar wind stream effects on the topside ionosphere over Arecibo: a case study during solar minimum. GEOPHYSICAL RESEARCH LETTERS , v. 44, p. 7607, 2017.

• FRÄNZ, M. ; Echer, E. ; MARQUES DE SOUZA, A. ; DUBININ, E. ; ZHANG, T.L. . Ultra low frequency waves at Venus: Observations by the Venus Express spacecraft. PLANETARY AND SPACE SCIENCE , v. 146, p. 55-65, 2017.

• Echer, Ezequiel ; KORTH, AXEL ; BOLZAN, MAURICIO JOSÉ ALVES ; FRIEDEL, REINHARD HANS WALTER . Global geomagnetic responses to the IMF <i>B</i><sub>z</sub> fluctuations during the September/October 2003 high-speed stream intervals. ANNALES GEOPHYSICAE , v. 35, p. 853-868, 2017.

• Dal Lago, A. ; BRAGA, C. R. ; DE MENDONCA, R. R. S. ; ROCKENBACH, M. ; Echer, E. ; SCHUCH, N. J. ; MUNAKATA, K. ; KATO, C. ; KUWABARA, T. ; KOZAI, M. ; AL JASSAR, H. K. ; SHARMA, M. M. ; TOKUMARU, M. ; DULDIG, M. ; HUMBLE, J. ; EVENSON, P. ; SABBAH, I. . Effects of ICMEs on High Energetic Particles as Observed by the Global Muon Detector Network (GMDN). PROCEEDINGS OF THE INTERNATIONAL ASTRONOMICAL UNION (PRINT) , v. 13, p. 69-74, 2017.

• Echer, E. ; BOLZAN, M.J.A. . A comparative study of solar wind and foreshock turbulence near Uranus orbit. PLANETARY AND SPACE SCIENCE , v. 120, p. 70-77, 2016.

• HAJRA, RAJKUMAR ; CHAKRABORTY, SHYAMAL KUMAR ; Tsurutani, Bruce T. ; DASGUPTA, ASHISH ; Echer, Ezequiel ; Brum, Christiano G.M. ; Gonzalez, Walter D. ; SOBRAL, JOSÉ HUMBERTO ANDRADE . An empirical model of ionospheric total electron content (TEC) near the crest of the equatorial ionization anomaly (EIA). Journal of Space Weather and Space Climate , v. 6, p. A29, 2016.

• HAJRA, RAJKUMAR ; Tsurutani, Bruce T. ; Echer, Ezequiel ; Gonzalez, Walter D. ; GJERLOEV, JESPER W. . Supersubstorms (SML-<-−2500-nT): Magnetic storm and solar cycle dependences. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS , v. 121, p. 7805-7816, 2016.

• SOUZA, A.M. ; Echer, E. ; BOLZAN, M.J.A. ; HAJRA, R. . A study on the main periodicities in interplanetary magnetic field Bz component and geomagnetic AE index during HILDCAA events using wavelet analysis. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS , v. 149, p. 81-86, 2016.

• DE MENDONÇA, R. R. S. ; BRAGA, C. R. ; Echer, E. ; Dal Lago, A. ; MUNAKATA, K. ; KUWABARA, T. ; KOZAI, M. ; KATO, C. ; ROCKENBACH, M. ; SCHUCH, N. J. ; AL JASSAR, H. K. ; SHARMA, M. M. ; TOKUMARU, M. ; DULDIG, M. L. ; HUMBLE, J. E. ; EVENSON, P. ; SABBAH, I. . THE TEMPERATURE EFFECT IN SECONDARY COSMIC RAYS (MUONS) OBSERVED AT THE GROUND: ANALYSIS OF THE GLOBAL MUON DETECTOR NETWORK DATA. The Astrophysical Journal , v. 830, p. 88, 2016.

• TSURUTANI, B. T. ; HAJRA, R. ; TANIMORI, T. ; TAKADA, A. ; REMYA, B. ; MANNUCCI, A. J. ; LAKHINA, G. S. ; KOZYRA, J. U. ; SHIOKAWA, K. ; LEE, L. C. ; Echer, E. ; REDDY, R. V. ; Gonzalez, W. D. . Heliospheric plasma sheet (HPS) impingement onto the magnetosphere as a cause of relativistic electron dropouts (REDs) via coherent EMIC wave scattering with possible consequences for climate change mechanisms. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS , v. 121, p. 10,130-10,156, 2016.

• BRAGA, CARLOS ROBERTO ; DE MENDONÇA, RAFAEL RODRIGUES SOUZA ; DAL LAGO, ALISSON ; Echer, Ezequiel . Coronal Mass Ejections travel time. PROCEEDINGS OF THE INTERNATIONAL ASTRONOMICAL UNION (PRINT) , v. 12, p. 218-220, 2016.

• DE MENDONÇA, RAFAEL R. S. ; BRAGA, CARLOS. R. ; Echer, Ezequiel ; Lago, Alisson Dal ; ROCKENBACH, MARLOS ; SCHUCH, NELSON J. ; MUNAKATA, KAZUOKI . Deriving the solar activity cycle modulation on cosmic ray intensity observed by Nagoya muon detector from October 1970 until December 2012. PROCEEDINGS OF THE INTERNATIONAL ASTRONOMICAL UNION (PRINT) , v. 12, p. 130-133, 2016.

• DE SOUZA, ADRIANE M. ; Echer, Ezequiel ; BOLZAM, MAURICIO J. A. ; FRÄNZ, MARKUS . A study on Electron Oscillations in the Magnetosheath of Mars with Mars Express observations. PROCEEDINGS OF THE INTERNATIONAL ASTRONOMICAL UNION (PRINT) , v. 12, p. 230-232, 2016.

• FABÍOLA, P. MAGALHÃES ; GONZALEZ, WALTER ; Echer, Ezequiel ; SOUZA-ECHER, MARIZA P. ; LOPES, ROSALY ; MORGENTHALER, JEFFREY P. ; RATHBUN, JULIE . Ground-based observations of the [SII] 6731 Å emission lines of the Io plasma torus. PROCEEDINGS OF THE INTERNATIONAL ASTRONOMICAL UNION (PRINT) , v. 12, p. 227-229, 2016.

• LAGO, A. DAL ; VIEIRA, L. E. ANTUNES ; Echer, E. ; BALMACEDA, L. A. ; ROCKENBACH, M. ; Gonzalez, W. D. . Extreme solar-terrestrial events. PROCEEDINGS OF THE INTERNATIONAL ASTRONOMICAL UNION (PRINT) , v. 12, p. 233-236, 2016.

• PORTUGAL, WILLIAMARY ; Echer, Ezequiel ; DE SOUZA ECHER, MARIZA PEREIRA ; PACINI, ALESSANDRA ABE . Possible effects on Earth's climate due to reduced atmospheric ionization by GCR during Forbush Decreases. PROCEEDINGS OF THE INTERNATIONAL ASTRONOMICAL UNION (PRINT) , v. 12, p. 298-300, 2016.

• HAJRA, RAJKUMAR ; Tsurutani, Bruce T. ; Echer, Ezequiel ; Gonzalez, Walter D. ; SANTOLIK, ONDREJ . RELATIVISTIC ( E > 0.6, > 2.0, AND > 4.0 MeV) ELECTRON ACCELERATION AT GEOSYNCHRONOUS ORBIT DURING HIGH-INTENSITY, LONG-DURATION, CONTINUOUS AE ACTIVITY (HILDCAA) EVENTS. Astrophysical Journal (Online) , v. 799, p. 39, 2015.

• MANNUCCI, A. J. ; VERKHOGLYADOVA, O. P. ; TSURUTANI, B. T. ; MENG, X. ; PI, X. ; WANG, C. ; ROSEN, G. ; LYNCH, E. ; SHARMA, S. ; RIDLEY, A. ; MANCHESTER, W. ; VAN DER HOLST, B. ; Echer, E. ; HAJRA, R. . Medium-Range Thermosphere-Ionosphere Storm Forecasts. Space Weather (Online) , v. 13, p. 125-129, 2015.

• Pacini, A.A. ; Usoskin, I.G. ; Mursula, K. ; Echer, E. ; Evangelista, H. . Signature of a sudden stratospheric warming in the near-ground 7Be flux. Atmospheric Environment (1994) , v. 113, p. 27-31, 2015.

• TSURUTANI, B. T. ; HAJRA, R. ; Echer, E. ; GJERLOEV, J. W. . Extremely intense (SML &leq;&ndash;2500 nT) substorms: isolated events that are externally triggered?. Annales Geophysicae , v. 33, p. 519-524, 2015.

• LOPEZ, R.E. ; Gonzalez, W.D. ; VASYLI'NAS, V. ; RICHARDSON, I.G. ; CID, C. ; Echer, E. ; REEVES, G.D. ; BRANDT, P.C. . Decrease in SYM-H during a storm main phase without evidence of a ring current injection. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS , v. 134, p. 118-129, 2015.

• HAJRA, RAJKUMAR ; Echer, Ezequiel ; Tsurutani, Bruce T. ; Gonzalez, Walter D. . Superposed epoch analyses of HILDCAAs and their interplanetary drivers: Solar cycle and seasonal dependences. Journal of Atmospheric and Solar-Terrestrial Physics , v. 121, p. 24-31, 2014.

• REMYA, B. ; TSURUTANI, B. T. ; REDDY, R. V. ; LAKHINA, G. S. ; FALKOWSKI, B. J. ; Echer, E. ; GLASSMEIER, K.-H. . LARGE-AMPLITUDE, CIRCULARLY POLARIZED, COMPRESSIVE, OBLIQUELY PROPAGATING ELECTROMAGNETIC PROTON CYCLOTRON WAVES THROUGHOUT THE EARTH'S MAGNETOSHEATH: LOW PLASMA β CONDITIONS. Astrophysical Journal (Online) , v. 793, p. 6, 2014.

• Tsurutani, Bruce T. ; Echer, Ezequiel ; SHIBATA, KAZUNARI ; Verkhoglyadova, Olga P. ; MANNUCCI, ANTHONY J. ; Gonzalez, Walter D. ; KOZYRA, JANET U. ; PÄTZOLD, MARTIN . The interplanetary causes of geomagnetic activity during the 7-17 March 2012 interval: a CAWSES II overview. Journal of Space Weather and Space Climate , v. 4, p. A02, 2014.

• HAJRA, RAJKUMAR ; Echer, Ezequiel ; Tsurutani, Bruce T. ; Gonzalez, Walter D. . Solar wind-magnetosphere energy coupling efficiency and partitioning: HILDCAAs and preceding CIR storms during solar cycle 23. Journal of Geophysical Research: Space Physics , v. 119, p. 2675-2690, 2014.

• HAJRA, RAJKUMAR ; Tsurutani, Bruce T. ; Echer, Ezequiel ; Gonzalez, Walter D. . Relativistic electron acceleration during high-intensity, long-duration, continuous AE activity (HILDCAA) events: Solar cycle phase dependences. Geophysical Research Letters , v. 1, p. n/a-n/a, 2014.

• BOLZAN, M.J.A. ; Echer, E. . A multifractal approach applied to the magnetic field turbulence in Jupiter's magnetosheath. Planetary and Space Science , v. 91, p. 77-82, 2014.

• ROCKENBACH, M. ; Dal Lago, A. ; SCHUCH, N. J. ; MUNAKATA, K. ; KUWABARA, T. ; OLIVEIRA, A. G. ; Echer, E. ; BRAGA, C. R. ; MENDONÇA, R. R. S. ; KATO, C. ; KOZAI, M. ; TOKUMARU, M. ; BIEBER, J. W. ; EVENSON, P. ; DULDIG, M. L. ; HUMBLE, J. E. ; AL JASSAR, H. K. ; SHARMA, M. M. ; SABBAH, I. . Global Muon Detector Network Used for Space Weather Applications. Space Science Reviews , v. 182, p. 1-18, 2014.

• HESS, S.L.G. ; Echer, E. ; Zarka, P. ; LAMY, L. ; DELAMERE, P.A. . Multi-instrument study of the Jovian radio emissions triggered by solar wind shocks and inferred magnetospheric subcorotation rates. Planetary and Space Science , v. 99, p. 136-148, 2014.

• VIEIRA, L. E. A. ; DE GONZALEZ, A. L. CLÚA ; LAGO, A. DAL ; WRASSE, C. ; Echer, E. ; Guarnieri, F. L. ; CARDOSO, F. REIS ; GUERRERO, G. ; COSTA, J. REZENDE ; PALACIOS, J. ; BALMACEDA, L. ; ALVES, L. RIBEIRO ; DA SILVA, L. ; COSTA, L. L. ; SAMPAIO, M. ; SOARES, M. C. RABELLO ; BARBOSA, M. ; DOMINGUES, M. ; RIGOZO, N. ; MENDES, O. ; et.al . Preliminary design of the INPE's Solar Vector Magnetograph. PROCEEDINGS OF THE INTERNATIONAL ASTRONOMICAL UNION (PRINT) , v. 10, p. 195-199, 2014.

• Tsurutani, Bruce T. ; Echer, Ezequiel ; RICHTER, INGO ; KOENDERS, CHRISTOPH ; GLASSMEIER, KARL-HEINZ . SLAMS at comet 19P/Borrelly: DS1 observations. Planetary and Space Science , v. 75, p. 17-27, 2013.

• MAKHMUTOV, V ; RAULIN, J-P ; MENDONCA, R R S DE ; BAZILEVSKAYA, G A ; CORREIA, E ; KAUFMANN, P ; MARUN, A ; FERNANDEZ, G ; ECHER, E . Analysis of cosmic ray variations observed by the CARPET in association with solar flares in 2011-2012. Journal of Physics. Conference Series (Online) , v. 409, p. 012185, 2013.

• HAJRA, R. ; Echer, E. ; TSURUTANI, B. T. ; Gonzalez, W. D. . Solar cycle dependence of high-intensity, long-duration, continuous AE activity (HILDCAA) events. Journal of Geophysical Research: Space Physics , v. 118, p. n/a-n/a, 2013.

• REMYA, B. ; REDDY, R. V. ; TSURUTANI, B. T. ; LAKHINA, G. S. ; Echer, E. . Ion temperature anisotropy instabilities in planetary magnetosheaths. Journal of Geophysical Research: Space Physics , v. 118, p. 785-793, 2013.

• PRESTES, A. ; RIGOZO, N. R. ; NORDEMANN, D. J. R. ; Echer, E. ; VIEIRA, L. E. A. ; SOUZA ECHER, M. P. ; WRASSE, C. M. ; Guarnieri, F. L. . Imprint of Climate Variability on Mesozoic Fossil Tree Rings: Evidences of Solar Activity Signals on Environmental Records Around 200 Million Years Ago?. Pure and Applied Geophysics (Printed ed.) , v. 1, p. 1, 2013.

• DE MENDONÇA, R. R. S. ; RAULIN, J. -P. ; Echer, E. ; MAKHMUTOV, V. S. ; Fernandez, G. . Analysis of atmospheric pressure and temperature effects on cosmic ray measurements. Journal of Geophysical Research: Space Physics , v. 118, p. 1403-1409, 2013.

• COSTA JUNIOR, E. ; ALVES, M. V. ; Echer, E. . Decréscimos magnéticos no meio interplanetário. Revista Brasileira de Ensino de Física (Online) , v. 35, p. 3309-3309-8, 2013.

• COSTA JR., EDIO DA ; Tsurutani, Bruce T. ; ALVES, MARIA VIRGÍNIA ; Echer, Ezequiel ; Lakhina, Gurbax S. . CROSS-FIELD DIFFUSION OF ENERGETIC (100 keV to 2 MeV) PROTONS IN INTERPLANETARY SPACE. THE ASTROPHYSICAL JOURNAL , v. 778, p. 180, 2013.

• Souza Echer, M.P. ; Echer, E. ; Rigozo, N.R. ; Brum, C.G.M. ; Nordemann, D.J.R. ; Gonzalez, W.D . On the relationship between global, hemispheric and latitudinal averaged air surface temperature (GISS time series) and solar activity. Journal of Atmospheric and Solar-Terrestrial Physics , v. 74, p. 87-93, 2012.

• RIGOZO, NIVAOR RODOLFO ; ROSA, MARCELO BARCELLOS DA ; RAMPELOTTO, PABULO HENRIQUE ; ECHER, MARIZA PEREIRA DE SOUZA ; Echer, Ezequiel ; NORDEMANN, DANIEL JEAN ROGER ; PINHEIRO, DAMARIS KIRSCH ; SCHUCH, NELSON JORGE . Reconstruction and searching ozone data periodicities in southern Brazil (29ºS, 53ºW). Revista Brasileira de Meteorologia (Impresso) , v. 27, p. 243-252, 2012.

• HESS, S.L.G. ; Echer, E. ; Zarka, P. . Solar wind pressure effects on Jupiter decametric radio emissions independent of Io. Planetary and Space Science , v. 70, p. 114-125, 2012.

• RIGOZO, NIVAOR RODOLFO ; NORDEMANN, DANIEL JEAN ROGER ; Echer, Ezequiel ; FILHO, MÁRIO TOMAZELLO ; SILVA, HEITOR EVANGELISTA ; RIGOZO, VALDEREZ F. ; SOUZA ECHER, MARIZA PEREIRA ; LISI, CLÁUDIO SERGIO ; PRESTES, ALAN . Solar-Terrestrial Signal Record in Tree Ring Width Time Series from Brazil. Pure and Applied Geophysics (Printed ed.) , v. 169, p. 19, 2012.

• ECHER, E. . Interplanetary Origins of Moderate (-100 nT < Dst {less than or equal to} -50 nT) Geomagnetic Storms During Solar Cycle 23 (1996-2008). Journal of Geophysical Research , 2012.

• ROSA, G. S. ; SCHUCH, N. J. ; GOMES, N. R. ; BERGMANN, J. R. ; Echer, E. ; MACHADO, R. . Inexpensive Interferometer for Low Frequency Radio Astronomy. Journal of Communication and Information Systems (Online) , v. 1, p. 30-42, 2012.

• KORTH, A. ; Echer, E. ; Zong, Q.-G. ; Guarnieri, F.L. ; FRAENZ, M. ; Mouikis, C.G. . The response of the polar cusp to a high-speed solar wind stream studied by a multispacecraft wavelet analysis. Journal of Atmospheric and Solar-Terrestrial Physics , v. 73, p. 52-60, 2011.

• Tsurutani, B.T. ; Lakhina, G.S. ; Verkhoglyadova, O.P. ; Gonzalez, W.D. ; Echer, E. ; Guarnieri, F.L. . A review of interplanetary discontinuities and their geomagnetic effects. Journal of Atmospheric and Solar-Terrestrial Physics , v. 73, p. 5-19, 2011.

• Tsurutani, Bruce T. ; Echer, Ezequiel ; Guarnieri, Fernando L. ; Gonzalez, Walter D. . The properties of two solar wind high speed streams and related geomagnetic activity during the declining phase of solar cycle 23. Journal of Atmospheric and Solar-Terrestrial Physics , v. 73, p. 164-177, 2011.

• Tsurutani, Bruce T. ; Lakhina, Gurbax S. ; Verkhoglyadova, Olga P. ; Echer, Ezequiel ; Guarnieri, Fernando L. ; Narita, Yasuhito ; Constantinescu, Dragos O. . Magnetosheath and heliosheath mirror mode structures, interplanetary magnetic decreases, and linear magnetic decreases: Differences and distinguishing features. Journal of Geophysical Research , v. 116, p. A02103, 2011.

• TSURUTANI, B. T. ; Echer, E. ; Gonzalez, W. D. . The solar and interplanetary causes of the recent minimum in geomagnetic activity (MGA23): a combination of midlatitude small coronal holes, low IMF <I>B</I>_Z variances, low solar wind speeds and low solar magnetic fields. Annales Geophysicae , v. 29, p. 839-849, 2011.

• Gonzalez, Walter D. ; Echer, Ezequiel ; Tsurutani, Bruce T. ; Gonzalez, Alicia L. ; Lago, Alisson . Interplanetary Origin of Intense, Superintense and Extreme Geomagnetic Storms. Space Science Reviews , v. 158, p. 69-89, 2011.

• Rigozo, N.R. ; Souza Echer, M.P. ; Evangelista, H. ; Nordemann, D.J.R. ; Echer, E. . Prediction of sunspot number amplitude and solar cycle length for cycles 24 and 25. Journal of Atmospheric and Solar-Terrestrial Physics , v. 73, p. 1294-1299, 2011.

• Echer, E. ; Tsurutani, B.T. ; Guarnieri, F.L ; Kozyra, J.U. . Interplanetary fast forward shocks and their geomagnetic effects: CAWSES events. Journal of Atmospheric and Solar-Terrestrial Physics , v. 73, p. 1330-1338, 2011.

• Alves, M.V. ; Echer, E. ; Gonzalez, W.D. . Geoeffectiveness of solar wind interplanetary magnetic structures. Journal of Atmospheric and Solar-Terrestrial Physics , v. 73, p. 1380-1384, 2011.

• Tsurutani, Bruce T. ; Echer, Ezequiel ; Verkhoglyadova, Olga P. ; Lakhina, Gurbax S. ; Guarnieri, F.L. . Mirror instability upstream of the termination shock (TS) and in the heliosheath. Journal of Atmospheric and Solar-Terrestrial Physics , v. 73, p. 1398-1404, 2011.

• Costa, E. ; Echer, E. ; Alves, M.V. ; Tsurutani, B.T. ; Simões, F.J.R. ; Cardoso, F.R. ; Lakhina, G.S. . A computational study of nonresonant cross-field diffusion of energetic particles due to their interaction with interplanetary magnetic decreases. Journal of Atmospheric and Solar-Terrestrial Physics , v. 73, p. 1405-1409, 2011.

• De Mendonça, R.R.S. ; Raulin, J.-P. ; Bertoni, F.C.P. ; Echer, E. ; Makhmutov, V.S. ; Fernandez, G. . Long-term and transient time variation of cosmic ray fluxes detected in Argentina by CARPET cosmic ray detector. Journal of Atmospheric and Solar-Terrestrial Physics , v. 73, p. 1410-1416, 2011.

• Gonzalez, W.D. ; Echer, E. ; Clúa de Gonzalez, A.L. ; Tsurutani, B.T. ; Lakhina, G.S. . Extreme geomagnetic storms, recent Gleissberg cycles and space era-superintense storms. Journal of Atmospheric and Solar-Terrestrial Physics , v. 73, p. 1447-1453, 2011.

• Echer, E. ; Gonzalez, W.D. ; Tsurutani, B.T. . Statistical studies of geomagnetic storms with peak Dst??50nT from 1957 to 2008. Journal of Atmospheric and Solar-Terrestrial Physics , v. 73, p. 1454-1459, 2011.

• Garzón, Diana Prado ; Brum, Christiano G.M. ; Echer, Ezequiel ; Aponte, Néstor ; Sulzer, Michael P. ; González, Sixto A. ; Kerr, Robert B. ; Waldrop, Lara . Response of the topside ionosphere over Arecibo to a moderate geomagnetic storm. Journal of Atmospheric and Solar-Terrestrial Physics , v. 73, p. 1568-1574, 2011.

• PRESTES, A. ; Rigozo, N.R. ; Nordemann, D.J.R. ; Wrasse, C.M. ; Souza Echer, M.P. ; Echer, E. ; da Rosa, M.B. ; Rampelotto, P.H. . Sun¿earth relationship inferred by tree growth rings in conifers from Severiano De Almeida, Southern Brazil. Journal of Atmospheric and Solar-Terrestrial Physics , v. 73, p. 1587-1593, 2011.

• Pacini, A.A. ; Usoskin, I.G. ; Evangelista, H. ; Echer, E. ; de Paula, R. . Cosmogenic isotope 7Be: A case study of depositional processes in Rio de Janeiro in 2008¿2009. Advances in Space Research , v. 48, p. 811-818, 2011.

• Tsurutani, B.T. ; Lakhina, G.S. ; Verkhoglyadova, O.P. ; Gonzalez, W.D. ; Echer, E. ; Guarnieri, F.L. . Corrigendum to â¿¿A review of interplanetary discontinuities and their geomagnetic effectsâ¿¿ by Tsurutani et al., JASTP, 73 (2011) 5â¿"19. Journal of Atmospheric and Solar-Terrestrial Physics , v. 73, p. 709-709, 2011.

• Echer, E. ; TSURUTANI, B. T. ; Gonzalez, W. D. ; KOZYRA, J. U. . High Speed Stream Properties and Related Geomagnetic Activity During the Whole Heliosphere Interval (WHI): 20 March to 16 April 2008. Solar Physics , v. 274, p. 303-320, 2011.

• SOUZA-ECHER, M. P. ; Gonzalez, W. D. ; Echer, E. ; NORDEMANN, D. J. R. ; RIGOZO, N. R. . Long term relation between solar activity and surface temperature at different geographical regions. Proceedings of the International Astronomical Union (Print) , v. 7, p. 418-422, 2011.

• Echer, E. ; TSURUTANI, B. T. ; Gonzalez, W. D. . Extremely low geomagnetic activity during the recent deep solar cycle minimum. Proceedings of the International Astronomical Union (Print) , v. 7, p. 200-209, 2011.

• De Mendonça, R.R.S. ; RAUOLIN, J P ; Bertoni, F.C.P. ; Echer, E. ; Makhmutov, V.S. ; Fernandez, G. . Estudo em múltiplas escalas temporais da intensidade de raios cósmicos medida na superfície terrestre. Revista Brasileira de Geofísica (Impresso) , v. 29, p. 677, 2011.

• Echer, E. ; Tsurutani, B.T. ; Guarnieri, F.L. . Interplanetary origins of November 2004 superstorms. Journal of Atmospheric and Solar-Terrestrial Physics , v. 72, p. 280-284, 2010.

• Echer, E. ; Tsurutani, B.T. ; Guarnieri, F.L. . Forward and reverse CIR shocks at 4¿5AU: Ulysses. Advances in Space Research , v. 45, p. 798-803, 2010.

• Rigozo, N.R. ; Nordemann, D.J.R. ; Echer, E. ; Echer, M.P.S. ; Silva, H.E. . Prediction of solar minimum and maximum epochs on the basis of spectral characteristics for the next millennium. Planetary and Space Science , v. 58, p. 1971-1976, 2010.

• TSURUTANI, B. T. ; LAKHINA, G. S. ; VERKHOGLYADOVA, O. P. ; Echer, E. ; Guarnieri, F. L. . Magnetic Decreases (MDs) and mirror modes: two different plasma &beta; changing mechanisms. Nonlinear Processes in Geophysics (Online) , v. 17, p. 467-479, 2010.

• Echer, E. ; Zarka, P. ; Gonzalez, W. D. ; Morioka, A. ; Denis, L. . Solar wind effects on Jupiter non-Io DAM emissions during Ulysses distant encounter (2003¿2004). Astronomy & Astrophysics (Berlin. Print) , v. 519, p. A84, 2010.

• ECHER, E . Wavelet analysis of ulf waves in the Mercury's magnetosphere. Revista Brasileira de Geofísica (Impresso) , v. 28, p. 175-182, 2010.

• Leppänen, A.-P. ; Pacini, A.A. ; Usoskin, I.G. ; Aldahan, A. ; Echer, E. ; Evangelista, H. ; Klemola, S. ; Kovaltsov, G.A. ; Mursula, K. ; Possnert, G. . Cosmogenic 7Be in air: A complex mixture of production and transport. Journal of Atmospheric and Solar-Terrestrial Physics , v. 72, p. 1036-1043, 2010.

• ECHER, E . Magnetosfera planetárias. Revista de Ensino de Física (Cessou em 1991. Cont.ISSN 1806-1117 Revista Brasileira de Ensino de Física (Impresso) , v. 32, p. 2301-1-2301-7, 2010.

• SOUZAECHER, M ; ECHER, E ; NORDEMANN, D ; RIGOZO, N . Multi-resolution analysis of global surface air temperature and solar activity relationship. Journal of Atmospheric and Solar-Terrestrial Physics , v. 71, p. 41-44, 2009.

• BORGAZZI, A. ; LARA, A. ; ECHER, E. ; ALVES, M V . Dynamics of coronal mass ejections in the interplanetary medium. Astronomy & Astrophysics (Berlin) , v. 498, p. 885-899, 2009.

• Guarnieri, F. L. ; TSURUTANI, B. T. ; ECHER, E. . The interplanetary magnetic decrease automatic detection (IMDAD) code. Earth, Planets and Space , v. 61, p. 585-588, 2009.

• Echer, Ezequiel ; Tsurutani, Bruce T. ; Guarnieri, Fernando L. . Solar and interplanetary origins of the November 2004 superstorms. Advances in Space Research , v. 44, p. 615-620, 2009.

• Tsurutani, Bruce T. ; Guarnieri, Fernando L. ; Echer, Ezequiel ; Lakhina, Gurbax S. ; Verkhoglyadova, Olga P. . Magnetic decrease formation from <1 AU to ?5 AU: Corotating interaction region reverse shocks. Journal of Geophysical Research , v. 114, p. A08105, 2009.

• Echer, E. . Foreshock and magnetosheath waves at Uranus and Neptune studied with wavelet analysis. Advances in Space Research , v. 44, p. 1030-1037, 2009.

• Tsurutani, Bruce T. ; Guarnieri, Fernando L. ; Echer, Ezequiel ; Lakhina, Gurbax S. ; Verkhoglyadova, Olga P. . Correction to ¿Magnetic decrease formation from <1 AU to ?5 AU: Corotating interaction region reverse shocks¿. Journal of Geophysical Research , v. 114, p. A12102, 2009.

• Miranda, Rodrigo A. ; Chian, Abraham C.-L. ; Dasso, Sergio ; Echer, Ezequiel ; Muñoz, Pablo R. ; Trivedi, Nalin B. ; Tsurutani, Bruce T. ; Yamada, Michio . Observation of non-Gaussianity and phase synchronization in intermittent magnetic field turbulence in the solar-terrestrial environment. Proceedings of the International Astronomical Union (Print) , v. 5, p. 363-368, 2009.

• GONZALEZ, W D ; ECHER, E. ; GONZALEZ, A L C ; TSURUTANI, B. T. . Reply to comment by Y. I. Yermolaev and M. Y. Yermolaev on. Geophysical Research Letters , v. 35, p. 1-2, 2008.

• ECHER, M. P. S. ; ECHER, E. ; NORDEMANN, D. J. R. ; RIGOZO, N. R. ; PRESTES, A. . Wavelet analysis of a centenninal (1895-1994) southern Brazil rainfall series (Pelotas). Climatic Change , v. 88, p. 1-9, 2008.

• TSURUTANI, B. T. ; ECHER, E. ; GUARNIERI, F L ; KOZYRA, J. U. . CAWSES November 7-8, 2004, superstorm: Complex solar and interplanetary features in the post-solar maximum phase. Geophysical Research Letters , v. 35, p. 1-6, 2008.

• ECHER, E. ; GONZALEZ, W D ; TSURUTANI, B. T. . Interplanetary conditions leading to superintense geomagnetic storms (Dst<-250 nT) during solar cycle 23. Geophysical Research Letters , v. 35, p. 1-5, 2008.

• Echer, E. ; KORTH, A. ; Zong, Q.-G. ; Fra¨nz, M. ; Gonzalez, W. D. ; Guarnieri, F. L. ; FU, S. Y. ; REME, H. . Cluster observations of O + escape in the magnetotail due to shock compression effects during the initial phase of the magnetic storm on 17 August 2001. Journal of Geophysical Research , v. 113, p. A05209, 2008.

• ECHER, E. ; Gonzalez, W. D. ; TSURUTANI, B. T. ; GONZALEZ, A L C . Interplanetary conditions causing intense geomagnetic storms (Dst ¡Ü −100 nT) during solar cycle 23 (1996¨C2006),. Journal of Geophysical Research , v. 113, p. 1-20, 2008.

• MANNUCCI, A. J. ; TSURUTANI, B. T. ; ABDU, M. A. ; Gonzalez, W. D. ; KOMJATHY, A. ; Echer, E. ; IIJIMA, B. A. ; CROWLEY, G. ; ANDERSON, D. . Superposed epoch analysis of the dayside ionospheric response to four intense geomagnetic storms. Journal of Geophysical Research , v. 113, p. 1-11, 2008.

• RIGOZO, N ; DASILVA, H ; NORDEMANN, D ; ECHER, E ; DESOUZAECHER, M ; PRESTES, A . The Medieval and Modern Maximum solar activity imprints in tree ring data from Chile and stable isotope records from Antarctica and Peru. Journal of Atmospheric and Solar-Terrestrial Physics , v. 70, p. 1012-1024, 2008.

• RIGOZO, N ; PRESTES, A ; NORDEMANN, D ; DASILVA, H ; SOUZAECHER, M ; ECHER, E . Solar maximum epoch imprints in tree-ring width from Passo Fundo, Brazil (1741¿2004). Journal of Atmospheric and Solar-Terrestrial Physics , v. 70, p. 1025-1033, 2008.

• NORDEMANN, D ; RIGOZO, N ; DESOUZAECHER, M ; ECHER, E . Principal components and iterative regression analysis of geophysical series: Application to Sunspot number (1750¿2004)?. Computers & Geosciences , v. 34, p. 1443-1453, 2008.

• Gonzalez, W. D. ; Echer, E. ; TSURUTANI, B. T. . Reply to comment by C. Cid, E. Saiz, and Y. Cerrato on ¿Interplanetary conditions leading to superintense geomagnetic storms (Dst ? ?250 nT) during solar cycle 23¿. Geophysical Research Letters , v. 35, p. L21108, 2008.

• de Lucas, Aline ; Schwenn, Rainer ; Marsch, Eckart ; Lago, Alisson Dal ; de Gonzalez, Alicia L. Clúa ; Echer, Ezequiel ; Gonzalez, Walter D. ; da Silva, Marlos R. . Multi-spacecraft observations to study the shock extension in the inner heliosphere. Proceedings of the International Astronomical Union (Print) , v. 4, p. 481-487, 2008.

• ECHER, E. . On the quasi-biennial oscillation (QBO) signal in the foF2 ionospheric parameter. Journal of Atmospheric and Solar-Terrestrial Physics , v. 69, p. 621-627, 2007.

• TSURUTANI, B. T. ; LAKHINA, G. S. ; VERKHOGLYADOVA, O. P. ; ECHER, E. ; GUARNIERI, F L . Comment on Comment on the Abundance of rotational and tangential discontinuities in the solar wind by M. Neugebauer. Journal of Geophysical Research , v. 112, p. 1-3, 2007.

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• KANE, R. P. ; ECHER, E. . Phase shift (time) between storm-time maximum negative excursions of geomagnetic disturbance index Dst and interplanetary Bz. Journal of Atmospheric and Solar-Terrestrial Physics , v. 69, p. 1009-1020, 2007.

• SILVA, M. R. DA ; GONZALEZ, W D ; ECHER, E. ; DALLAGO, A. ; VIEIRA, L e A ; GUARNIERI, F L ; de LUCAS, A. ; SCHUCH, N J ; MUNAKATA, K. . Multitaper spectral analysis of cosmic rays Sao Martinho da Serra's muon telescope and Newark's neutron monitor data. Revista Brasileira de Geofísica , v. 25, p. 163-167, 2007.

• ANDRIOLI, V. ; ECHER, E. ; SAVIAN, J. F. ; SCHUCH, N J . Positive and negative sudden impulses caused by fast forward and reverse interplanetary shocks. Revista Brasileira de Geofísica , v. 25, p. 175-179, 2007.

• SAVIAN, J. F. ; SILVA, M. R. DA ; DALLAGO, A. ; ECHER, E. ; VIEIRA, L e A ; MUNAKATA, K. ; GONZALEZ, W D ; SCHUCH, N J . Forbush decreases on november 6-12, 2004 observed by the muon detector network. Revista Brasileira de Geofísica , v. 25, p. 169-173, 2007.

• de LUCAS, A. ; GONZALEZ, W D ; ECHER, E. ; GUARNIERI, F L ; DALLAGO, A. ; SILVA, M. R. DA ; VIEIRA, L e A ; SCHUCH, N J . Energy balance during intense and super-intense magnetic storms using an Akasofu epsilon parameter corrected by the solar wind dynamic pressure. Journal of Atmospheric and Solar-Terrestrial Physics , v. 69, p. 1851-1863, 2007.

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• ALVES, M. V. ; ECHER, E. ; GONZALEZ, W D . Geoeffectiveness of corotating interaction regions as measured by Dst index. Journal of Geophysical Research , v. 111, n.A07S05, p. 1-9, 2006.

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• RIGOZO, N. R. ; NORDEMANN, D. J. R. ; ECHER, E. ; VIEIRA, L e A . Search for sunspot periodicity in tree rign width data using wavelet analysis. Brazilian Journal of Investigative Pathology, Morphology and Morphometry , v. 1, p. 25-31, 2006.

• RIGOZO, N. R. ; NORDEMANN, D. J. R. ; SILVA, H. E. ; ECHER, M. P. S. ; ECHER, E. ; PRESTES, A. . Spectral analysis of tree ring width time series from Chile (1587-1994 AD). Trends In Applied Sciences Research , v. 1, p. 73-78, 2006.

• RIGOZO, N. R. ; SILVA, H. E. ; NORDEMANN, D. J. R. ; ECHER, M. P. S. ; ECHER, E. ; PRESTES, A. . A study of solar-ENSO correlation using southern Brazil tree-ring index (1955-1994). Trends In Applied Sciences Research , v. 1, p. 606-612, 2006.

• ECHER, E. ; GONZALEZ, W D ; TSURUTANI, B. T. ; VIEIRA, L e A ; ALVES, M V ; GONZALEZ, A L C . On the preferential occurrence of interplanetary shocks in July and November: Causes (solar wind annual dependence) and consequences (intense magnetic storms). Journal of Geophysical Research (doi:10.1029/2004JA010527), v. 110, n.A02101, p. 1/A02101-14, 2005.

• ECHER, E. ; ALVES, M V ; GONZALEZ, W D . A statistical study of magnetic cloud parameters and geoeffectiveness. Journal of Atmospheric and Solar-Terrestrial Physics , v. 67, p. 839-852, 2005.

• GONZALEZ, W D ; ECHER, E. . A study on the peak Dst and peak negative Bz relationship during intense geomagnetic storms. Geophysical Research Letters (doi:10.1029/2005GL023486), v. 32, n.L18103, p. 1-4, 2005.

• RIGOZO, N. R. ; ECHER, E. ; NORDEMANN, D. J. R. ; VIEIRA, L e A ; H. H. Faria . Comparative study between four classical spectral analysis methods. Applied Mathematics and Computation , v. 168, p. 411-430, 2005.

• ECHER, E. ; GONZALEZ, W D ; DALLAGO, A. ; VIEIRA, L e A ; GUARNIERI, F L ; GONZALEZ, A L C ; SCHUCH, N J . Interplanetary shocks and geomagnetic activity during solar maximum (2000) and solar minimum (1995-1996). Advances in Space Research , v. 36, n.12, p. 2318-2322, 2005.

• ECHER, E. ; GONZALEZ, W D ; GUARNIERI, F L ; DALLAGO, A. ; VIEIRA, L e A . Introduction to space weather. Advances in Space Research , v. 35, p. 855-865, 2005.

• ECHER, E. ; GONZALEZ, W D ; GONZALEZ, A L C ; PRESTES, A. ; VIEIRA, L e A ; DALLAGO, A. ; GUARNIERI, F L ; SCHUCH, N J . Reply to "Comments on the paper Long term correlation between solar and geomagnetic activity". Journal of Atmospheric and Solar-Terrestrial Physics , v. 67, p. 1375-1376, 2005.

• ECHER, E. ; GONZALEZ, W D ; DALLAGO, A. ; VIEIRA, L e A ; GUARNIERI, F L ; GONZALEZ, A L C ; SCHUCH, N J . Interplanetary shocks and sudden impulses in solar maximum (2000) and solar minimum (1995-1996). Advances in Space Research , v. 36, p. 2313-2317, 2005.

• RIGOZO, N. R. ; NORDEMANN, D. J. R. ; ECHER, E. ; VIEIRA, L e A . Search for solar periodicities in tree-ring widths from Concórdia (S.C., Brazil). Pure and Applied Geophysics, v. 161, n.1, p. 221-233, 2004.

• GUARNIERI, R. A. ; GUARNIERI, F L ; CONTREIRA, D. B. ; PADILHA, L. ; ECHER, E. ; PINHEIRO, D. K. ; SCHUCH, A. M. P. ; MAKITA, K. ; SCHUCH, N J . Ozone and UV-B radiation anticorrelations at fixed solar zenith angles in southern Brazil. Geofísica Internacional, v. 43, n.1, p. 17-22, 2004.

• ECHER, E. ; SCHUCH, N J ; MAKITA, K. ; OKANO, S. . Observations of broadband solar UV-A irradiance at Santa Maria, Brazil (29S, 53W). Geofísica Internacional, v. 43, n.1, p. 53-59, 2004.

• ECHER, E. ; RIGOZO, N. R. ; M. P. Souza Echer ; VIEIRA, L e A ; NORDEMANN, D. J. R. . Reconstruction of the aa index on the basis of spectral characteristics. Geofísica Internacional, v. 43, n.1, p. 103-111, 2004.

• ECHER, E. . Multi-resolution analysis of global total ozone column during 1979-1992 Nimbus-7 TOMS period. Annales Geophysicae, v. 22, p. 1487-1493, 2004.

• ECHER, E. ; GONZALEZ, W D . Geoeffectiveness of interplanetary shocks, magnetic clouds, sector boundary crossings and their combined occurrence (L09808, doi:10.1029/2003GL019199). Geophysical Research Letters , v. 31, n.L09808, p. 1-4, 2004.

• RIGOZO, N. R. ; NORDEMANN, D. J. R. ; ECHER, E. ; VIEIRA, L e A ; PRESTES, A. . An interactive method for digital tree-ring width measurement. Geofísica Internacional, v. 43, n.2, p. 281-285, 2004.

• RIGOZO, N. R. ; NORDEMANN, D. J. R. ; ECHER, E. ; VIEIRA, L e A . ENSO influence on tree ring data from Chile and Brazil. Geofísica Internacional, v. 43, n.2, p. 287-294, 2004.

• ECHER, E. ; RIGOZO, N. R. ; NORDEMANN, D. J. R. ; VIEIRA, L e A . Prediction of solar activity on the basis of spectral characteristics of sunspot number. Annales Geophysicae, v. 22, p. 2239-2243, 2004.

• ECHER, E. ; SVALGAARD, L. . Asymmetry in the Rosenberg-Coleman effect around solar minimum revealed by wavelet analysis of the interplanetary magnetic field polarity data. Geophysical Research Letters (doi:10.1029/2004GL020228), v. 31, n.L12808, p. 1-4, 2004.

• ECHER, E. ; GONZALEZ, W D ; GONZALEZ, A L C ; PRESTES, A. ; VIEIRA, L e A ; DALLAGO, A. ; GUARNIERI, F L ; SCHUCH, N J . Long-term correlation between solar and geomagnetic activity. Journal of Atmospheric and Solar-Terrestrial Physics, v. 66, p. 1019-1025, 2004.

• ECHER, E. ; ALVES, M V ; GONZALEZ, W D . Geoeffectiveness of interplanetary shocks during solar minimum (1995-1996) and solar maximum (2000). Solar Physics, v. 221, p. 361-380, 2004.

• GUARNIERI, F L ; ECHER, E. ; PINHEIRO, D. K. ; SCHUCH, N J . Vertical ozone and temperature distributions above Santa Maria, Brazil (1996-1998). Advances in Space Research, v. 34, p. 759-763, 2004.

• GUARNIERI, R. A. ; PADILHA, L. ; GUARNIERI, F L ; ECHER, E. ; MAKITA, K. ; PINHEIRO, D. K. ; SCHUCH, A. M. P. ; L S Boeira ; SCHUCH, N J . A study of the anticorrelations between ozone and UV-B radiation using linear and exponential fits in southern Brazil. Advances in Space Research, v. 34, p. 764-768, 2004.

• ECHER, E. ; GUARNIERI, F L ; RIGOZO, N. R. ; VIEIRA, L e A . A study of the latitudinal dependence of the quasi-biennial oscillation in Total Ozone Mapping Spetrometer total ozone. Tellus, v. 56A, p. 527-535, 2004.

• BALMACEDA, L. A. ; GONZALEZ, W D ; ECHER, E. ; SANTOS, J C ; DALLAGO, A. ; VIEIRA, L e A ; GUARNIERI, F L ; GONZALEZ, A L C . The solar origins of the sun-earth connection events on april 1999 and february 2000. Brazilian Journal of Physics, v. 34, n.4B, p. 1745-1747, 2004.

• H. H. Faria ; ECHER, E. ; RIGOZO, N. R. ; VIEIRA, L e A ; NORDEMANN, D. J. R. ; PRESTES, A. . A comparison of the spectral characteristics of the Wolf sunspot number (Rz) and Group sunspot number (Rg). Solar Physics, v. 223, p. 305-318, 2004.

• VIEIRA, L e A ; GONZALEZ, W D ; ECHER, E. ; TSURUTANI, B. T. . Storm-intensity criteria for several classes of the driving interplanetary structures. Solar Physics, v. 223, p. 245-258, 2004.

• DALLAGO, A. ; SCHWENN, R ; STENBORG, G. ; GONZALEZ, W D ; GONZALEZ, A L C ; VIEIRA, L e A ; ECHER, E. ; GUARNIERI, F L ; SCHUCH, N J . Deceleration observed in the coronal mass ejection event of July 25, 1999. Geofísica Internacional , v. 43, p. 41-45, 2004.

• DALLAGO, A. ; VIEIRA, L e A ; ECHER, E. ; GONZALEZ, W D ; GONZALEZ, A L C ; GUARNIERI, F L ; SCHUCH, N J ; SCHWENN, R . Comparison between halo cme expansion speeds observed on the sun, the related shock transit speeds to earth and corresponding ejecta speeds at 1 AU. Solar Physics , v. 222, p. 323-328, 2004.

• DALLAGO, A. ; VIEIRA, L e A ; ECHER, E. ; GONZALEZ, W D ; GONZALEZ, A L C ; GUARNIERI, F L ; BALMACEDA, L. A. ; SANTOS, J C ; SILVA, M. R. DA ; de LUCAS, A. ; SCHUCH, N J . Great geomagnetic storms in the rise and maximum of solar cycle 23. Brazilian Journal of Physics , v. 34, p. 1542-1546, 2004.

• ECHER, E. ; GONZALEZ, W D ; VIEIRA, L e A ; LAGO, A Dal ; GUARNIERI, F L ; PRESTES, A. ; GONZALEZ, A L C ; SCHUCH, N J . Interplanetary shock parameters during solar activity maximum (2000) and minimum (1995-1996). Brazilian Journal of Physics, v. 33, n.1, p. 115-122, 2003.

• ECHER, E. ; RIGOZO, N. R. ; NORDEMANN, D. J. R. ; VIEIRA, L e A ; PRESTES, A. ; H. H. Faria . O Número de Manchas Solares, Índice de Atividade do Sol. Revista Brasileira de Ensino de Física, v. 25, n.2, p. 157-163, 2003.

• RIGOZO, N. R. ; VIEIRA, L e A ; ECHER, E. ; NORDEMANN, D. J. R. . Wavelet analysis of solar-ENSO imprints in tree ring data from Southern Brazil in the last century. Climatic Change, v. 60, n.3, p. 329-340, 2003.

• VIEIRA, L e A ; GONZALEZ, W D ; ECHER, E. ; GUARNIERI, F L ; PRESTES, A. ; GONZALEZ, A L C ; SANTOS, J C ; DALLAGO, A. ; SCHUCH, N J . Multi-scale analysis of the geomagnetic symmetric index (Sym). Solar Physics, v. 217, n.2, p. 383-394, 2003.

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• ECHER, E. ; SOUZA, M. P. ; SCHUCH, N J . A Lei de Beer Aplicada na Atmosfera Terrestre. Revista Brasileira de Ensino de Física , v. 23, n.3, p. 276-283, 2001.

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• BRAGA, C. R. ; SILVA, Marlos Rockenbach da ; Dal Lago, A. ; MENDONCA, R R S DE ; Echer, E. ; MUNAKATA, K. ; KUWABARA, T. ; KATO, C. ; SCHUCH, NELSON JORGE ; BIEBER, J. W. ; DULDIG, M. L. ; HUMBLE, J. E. ; JASSAR, H. K. A. ; SHARMA, M. M. ; SABBAH, I. S. . The ICME ejected at 2010 April 3 observed by the STEREO coronagraphs and by the Global Muon Detector Network. In: 33rd International Cosmic Ray Conference, 2013, Rio de Janeiro. Proceedings of the ICRC 2013, 2013.

• ALVES, M V ; Costa, E. ; Tsurutani, B.T. ; Echer, E. ; Lakhina, Gurbax S. . Nonresonant cross-field diffusion of 100 keV to 2 MeV protons in interplanetary space. In: 39th European Physical Society Conference & 16th International Congress on Plasma Physics, 2012, Estocolmo. Proceedings of the 39th EPS Conference % 16th. International Congress on Plasma Physics, 2012. v. 1. p. 1-4.

• BOLZAN, M. J. A. ; Echer, E. ; KORTH, A. . Cross-wavelet analysis on the interplanetary and magnetospheric tail magnetic field data. In: XXXIV Congresso Nacional de Matemática Aplicada e Computacional, 2012, Águas de Lindóia. Anais do XXXIV Congresso Nacional de Matemática Aplicada e Computacional, 2012. v. 1. p. 797-802.

• Echer, E. . Wavelet analysis of magnetic field fluctuations in the magnetosheaths of the outer planets. In: XXXIV Congresso Nacional de Matemática Aplicada e Computacional, 2012, Águas de Lindóia. Anais do XXXIV Congresso Nacional de Matemática Aplicada e Computacional, 2012. v. 1. p. 658-664.

• Pacini, A.A. ; Echer, E. ; SILVA, H. E. . Solar activity imprints over deltaD from Antarctica, Andes and Greenland ice cores studied with wavelet analysis. In: XXXIV Congresso Nacional de Matemática Aplicada e Computacional, 2012, Águas de Lindóia. Anais do XXXIV Congresso Nacional de Matemática Aplicada e Computacional, 2012. v. 1. p. 667-673.

• De Mendonça, R.R.S. ; Raulin, J.-P. ; Echer, E. ; Makhmutov, V.S. ; Fernandez, G. . Comparison of the integral and empirical temperature correction methods using the CARPET detector data. In: 32nd International Cosmic Ray Conference, 2011, Beijing. Proceedings of the 32nd International Cosmic Ray Conference, 2011. v. 11. p. 192-195.

• YANKE, V. ; BERKOVA, M. ; De Mendonça, R.R.S. ; RAUOLIN, J P ; Bertoni, F.C.P. ; Echer, E. ; Fernandez, G. . Temperature effects of general component seen by cosmic ray detectors. In: 32nd International Cosmic Ray Conference, 2011, Beijing. Proceedings of the 32nd International Cosmic Ray Conference, 2011. v. 11. p. 377-380.

• De Mendonça, R.R.S. ; Raulin, J.-P. ; Bertoni, F.C.P. ; Echer, E. ; Makhmutov, V.S. ; Fernandez, G. . Solar and atmospheric influences in the cosmic ray intensity. In: 4th School on Cosmic Rays and Astrophysics, 2010, Sao Paulo. Proceedings of Science, 2010. p. 1-11.

• Echer, E. . A study on the solar cycle and annual distribution of geomagnetic storms. In: 11th International Congress of the Brazilian Geophysical Society, 2009, Salvador. Procedings of the 11th International Congress of the Brazilian Geophysical Society, 2009. p. 1-4.

• ROSA, G. S. ; SCHUCH, N J ; GOMES, N. R. ; ECHER, E ; JASKULSKI, T. ; FAGUNDES, I. F. ; STEKEL, T. R. C. ; ANTUNES, C. E. . The electromagnetic environment survey at the Brazilian southern space observatory for the installation of LOFAR stations. In: 11th International Congress of the Brazilian Geophysical Society, 2009, Salvador. Proceedings 11th International Congress of the Brazilian Geophysical Society, 2011. p. 1-6.

• STEKEL, T. R. C. ; Echer, E. ; SCHUCH, N J ; Guarnieri, F. L. ; ANTUNES, C. E. ; KEMMERICH, N. ; VIEIRA, L. R. . A study of solar flare electromagnetic effects on the ionosphere of southern Brazil during solar cycle 23. In: 11th International Congress of the Brazilian Geophysical Society, 2009, Salvador. Proceedings 11th International Congress of the Brazilian Geophysical Society, 2009. p. 1-6.

• VIEIRA, L. R. ; Echer, E. ; SCHUCH, N J ; SILVA, M. R. DA ; KEMMERICH, N. ; STEKEL, T. R. C. . Correlations between cosmic ray decreases and forward shock parameters in 2001. In: 11th International Congress of the Brazilian Geophysical Society, 2009, Salvador. Proceedings 11th International Congress of the Brazilian Geophysical Society, 2009. p. 1-6.

• de Lucas, Aline ; ECHER, E ; Guarnieri, F. L. ; Dal Lago, A. ; Clúa de Gonzalez, A.L. ; Gonzalez, W.D. ; SILVA, M. R. DA . A study of the main solar wind-magnetosphere energy input functions. In: VIII Encontro Latino-Americano de Pós-Graduação - UNIVAP, 2008, São José dos Campos. Anais VIII EPG UNIVAP, 2008. p. 1-4.

• RIGOZO, N. R. ; ECHER, M. P. S. ; NORDEMANN, D. J. R. ; ECHER, E. ; PRESTES, A. ; SILVA, H. E. . Tratamento interativo de imagens digitais de anéis de árvores - TIIDAA. In: XIII Simpósio Brasileiro de Sensoriamento Remoto, 2007, Florianopólis. Proceedings do XIII Simpósio Brasileiro de Sensoriamento Remoto, 2007. p. 1-7.

• SILVA, S. M. DA ; BRAGA, C. R. ; SCHUCH, N J ; SAVIAN, J. F. ; ECHER, E ; Guarnieri, F. L. . Analysis of the Mercury's bow shock properties during Mariner-10 encounters. In: 10th International Congress of the Brazilian Geophysical Society, 2007, Rio de Janeiro. Proceedings of the 10th International Congress of the Brazilian Geophysical Society, 2007. p. 1-6.

• ALVES, M V ; ECHER, E ; GONZALEZ, W D ; BALMACEDA, L. A. ; GUARNIERI, F L . Geomagnetic activity during the Sun-Earth connection events on April 1999 and February 2000. In: 10th International Congress of the Brazilian Geophysical Society, 2007, Rio de Janeiro. Proceedings of the 10th International Congress of the Brazilian Geophysical Society, 2007. p. 1-4.

• ECHER, E . Identification of the magnetic boundaries of Saturn's mangetosphere using multi-resolution analysis. In: 10th International Congress of the Brazilian Geophysical Society, 2007, Rio de Janeiro. Proceedings of the 10th International Congress of the Brazilian Geophysical Society, 2007. p. 1-5.

• de LUCAS, A. ; ECHER, E ; GONZALEZ, W D ; GUARNIERI, F L ; DALLAGO, A. ; SILVA, M. R. DA ; VIEIRA, L e A ; SCHUCH, N J . Intense and super intense magnetic storms compared by using interplanetary parameters and geomagnetic indices. In: 10th International Congress of the Brazilian Geophysical Society, 2007, Rio de Janeiro. Proceedings of the 10th International Congress of the Brazilian Geophysical Society, 2007. p. 1-4.

• ECHER, M. P. S. ; NORDEMANN, D. J. R. ; Echer, E. ; RIGOZO, N. R. . Spectral analysis of global, hemispheric and latitudinal averaged air surface temperature time series. In: 10th International Congress of the Brazilian Geophysical Society, 2007, Rio de Janeiro. Proceddings of the 10th International Congress of the Brazilian Geophysical Society, 2007. p. 1-6.

• ECHER, E ; GONZALEZ, W D . Ring current asymmetry during super-intense magnetic storms. In: 10th International Congress of the Brazilian Geophysical Society, 2007, Rio de Janeiro. Proceedings of the 10th International Congress of the Brazilian Geophysical Society, 2007. p. 1-6.

• RIGOZO, N. R. ; PRESTES, A. ; NORDEMANN, D. J. R. ; SILVA, H. E. ; ECHER, M. P. S. ; Echer, E. . Registros da atividade solar nos anéis de árvores da região sul do Brasil. In: 10th International Congress of the Brazilian Geophysical Society, 2007, Rio de Janeiro. Proceedinsg of the 10th International Congress of the Brazilian Geophysical Society, 2007. p. 1-5.

• ECHER, E. ; ALVES, M. V. ; BALMACEDA, L. A. ; GUARNIERI, F L ; SANTOS, J C ; GONZALEZ, W D ; DALLAGO, A. ; VIEIRA, L e A . Interplanetary aspects of the sun-earth connection events on april 1999 and february 2000. In: 13th International Congress on Plasma Physics, 2006, Kiev. Proceedings 13th International Congress on Plasma Physics, 2006. p. 1-6.

• de LUCAS, A. ; GONZALEZ, W D ; ECHER, E. ; GUARNIERI, F L ; DALLAGO, A. ; VIEIRA, L e A ; SILVA, M. R. DA ; SARAIVA, A. C. V. . Estruturas interplanetárias causando supertempestades e tempestades magnéticas intensas. In: VI Encontro Latino-Americano de Pós-Graduação UNIVAP, 2006, São José dos Campos, SP. Proceedings VI Encontro Latino-Americano de Pós-Graduação, 2006. p. 2114-2117.

• ANDRIOLI, V. ; SAVIAN, J. F. ; ECHER, E. ; SCHUCH, N J . Um estudo sobre ondas de choque no meio interplanetário. In: 9th International Congress of the Brazilian Geophysical Society, 2005, Salvador, BA. Proceedings 9th International Congress of the Brazilian Geophysical Society, 2005. p. 1-6.

• DALLAGO, A. ; VIEIRA, L e A ; ECHER, E. ; GUARNIERI, F L ; SILVA, M. R. DA ; de LUCAS, A. ; GONZALEZ, W D ; GONZALEZ, A L C . The solar origin of the october 21-22 (1999) very intense geomagnetic storm. In: 9th International Congress of the Brazilian Geophysical Society, 2005, Salvador, BA. Proceedings 9th International Congress of the Brazilian Geophysical Society, 2005. p. 1-6.

• SAVIAN, J. F. ; SILVA, M. R. DA ; ANDRIOLI, V. ; DALLAGO, A. ; ECHER, E. ; VIEIRA, L e A ; MUNAKATA, K. ; PUGACHEVA, G. I. ; BIEBER, J. W. ; GONZALEZ, W D ; SCHUCH, N J . Forbush decreases in november 6-20, 2004 observed by the muon detector network. In: 9th International Congress of the Brazilian Geophysical Society, 2005, Salvador, BA. Proceedings 9th International Congress of the Brazilian Geophysical Society, 2005. p. 1-6.

• SILVA, M. R. DA ; ECHER, E. ; GUARNIERI, F L ; VIEIRA, L e A ; de LUCAS, A. ; DALLAGO, A. ; GONZALEZ, W D ; SCHUCH, N J . Muon and neutron observations in connnection with the corotating interaction region. In: 9th International Congress of the Brazilian Geophysical Society, 2005, Salvador, BA. Proceedings 9th International Congress of the Brazilian Geophysical Society, 2005. p. 1-6.

• de LUCAS, A. ; Echer, E. ; González, Sixto A. ; Gonzalez, W. D. ; Guarnieri, F. L. ; Dal Lago, A. ; SILVA, M. R. DA ; Santos, J. C. . Relationship between intense magnetic storms caused by sheath regions, CIRs and ICMEs. In: 9th International Congress of the Brazilian Geophyical Society, 2005, Salvador. Proceedings 9th International Congress of the Brazilian Geophysical Society, 2005. p. 1-6.

• BALMACEDA, L. A. ; GONZALEZ, W D ; GONZALEZ, A L C ; LAGO, A Dal ; VIEIRA, L e A ; SANTOS, J C ; GUARNIERI, F L ; ECHER, E. . On the solar disk sources of very intense geomagnetic storms. In: 8th International Congress of the Brazilian Geophysical Society, 2003, Rio de Janeiro. Proceedings 8th International Congress of the Brazilian Geophysical Society, 2003.

• ECHER, E. ; GONZALEZ, W D ; ALVES, M V ; GONZALEZ, A L C ; LAGO, A Dal ; VIEIRA, L e A ; GUARNIERI, F L ; SANTOS, J C ; BALMACEDA, L. A. ; SCHUCH, N J . Geomagnetic effects of interplanetary shock waves during solar minimum (1995-1996) and solar maximum (2000). In: ISCS 2003 Symposium Solar Variability as an Input to the Earth's Environment, 2003, Tatranska Lomnica. Proceedings ISCS 2003 Symposium Solar Variability as an Input to the Earth's Environment, 2003. p. 641-644.

• NORDEMANN, D. J. R. ; RIGOZO, N. R. ; ECHER, E. ; VIEIRA, L e A . Solar activity and El Niño effects on southern Brazil araucaria ring widths (1955-1997). In: 6h Internationa Conference on Dendrochronology, 2002, Quebec. Proceedings 6h Internationa Conference on Dendrochronology, 2002.

• ECHER, E. ; KIRCHHOFF, V. W. J. H. . Observations of broadband UV-A and UV-B solar radiation at 23oS, 45oW. In: 7th International Congress of the Brazilian Geophysical Society, 2001, Salvador. Extended Abstracts 7th International Congress of the Brazilian Geophysical Society, 2001. p. 1419-1421.

• ECHER, E. ; VIEIRA, L e A ; RIGOZO, N. R. ; SOUZA, M. P. ; NORDEMANN, D. J. R. . A Study of the Solar-Geomagnetic Indices Correlation. In: 7th International Congress of the Brazilian Geophysical Society, 2001, Salvador. Extended Abstracts 7th International Congress of the Brazilian Geophysical Society, 2001. p. 1369-1372.

• KIRCHHOFF, V. W. J. H. ; LEME, N. M. P. ; ECHER, E. . UV and ozone anticorrelations at the Brazilian Antarctic Station Comandante Ferraz. In: 7thInternational Congress of the Brazilian Geophysical Society, 2001, Salvador. Extended Abstracts 7thInternational Congress of the Brazilian Geophysical Society, 2001. p. 1441-1444.

• NORDEMANN, D. J. R. ; RIGOZO, N. R. ; ECHER, E. ; VIEIRA, L e A ; ZANANDREA, A. . Tree ring width wavelet analysis of solar variability and climatic effects on a Chilean cypress during the last two and a half millennia. In: International Conference Tree Rings and People, 2001, Davos. Abstracts International Conference Tree Rings and People, 2001.

• MULHLEN, L. V. ; GUARNIERI, R. A. ; CONTREIRA, D. B. ; HORST, L. ; COELI, F. ; ROSATTO, D. ; PADILHA, L. ; ECHER, E. ; GUARNIERI, F L ; GRIEBLER, A. ; PINHEIRO, D. K. ; SCHUCH, N J . Perfil médio da camada de ozônio na região central do Rio Grande do Sul. In: 7th International Congress of the Brazilian Geophysical Society, 2001, Salvador, BA. Proceedings 7th International Congress of the Brazilian Geophysical Society, 2001. p. 1422-1425.

• ECHER, E. ; KIRCHHOFF, V. W. J. H. ; LEME, N. M. P. ; ZARATTI, F. . Observations of Erythemal UV-B high altitude solar radiation in Bolívia.. In: Quadrennial Ozone Symposium 2000, 2000, Sapporo. Proceedings of the Quadrennial Ozone Symposium 2000, 2000. p. 355-356.

• ECHER, E. ; KIRCHHOFF, V. W. J. H. . QBO and solar cycle signals on total ozone at tropical Brazilian stations. In: SPARC 2000 2nd General Assembly of the WCRP Project, 2000, Mar del Plata. Proceedings of the SPARC2000 2nd General Assembly of the WCRP Project, 2000.

• ECHER, E. ; KIRCHHOFF, V. W. J. H. . A comparison of direct and global UV-B X Ozone anticorrelations. In: SPARC2000 2nd General Assembly of the WCRP Project, 2000, Mar del Plata. Proceedings of the SPARC2000 2nd General Assembly of the WCRP Project, 2000.

• KIRCHHOFF, V. W. J. H. ; ECHER, E. ; LEME, N. M. P. . Vertical ozone distribuitions above the Brazilian Antarctic Station. In: Quadrennial Ozone Symposium 2000, 2000, Sapporo. Proceedings of the Quadrennial Ozone Symposium 2000, 2000. p. 789-790.

• KIRCHHOFF, V. W. J. H. ; ECHER, E. ; LEME, N. M. P. ; CASICCIA, C. ; ZAMORANO, F. ; VALDERRAMA, V. . UV-B enhancements during ozone hole disturbances at the brazilian antarctic station (62o S, 58o W) and Punta Arenas (53.2o S, 70.9o W). In: Quadrennial Ozone Symposium 2000, 2000, Sapporo. Proceedings of the Quadrennial Ozone Symposium 2000, 2000. p. 475-476.

• KIRCHHOFF, V. W. J. H. ; ECHER, E. . UV-B and Ozone anticorrelations at low and high latitudes. In: SPARC2000 2nd General Assembly of the WCRP Project, 2000, Mar del Plata. Proceedings of the SPARC2000 2nd General Assembly of the WCRP Project, 2000.

• LEME, N. M. P. ; KIRCHHOFF, V. W. J. H. ; ECHER, E. ; CASICCIA, C. ; ZAMORANO, F. . UV-B x Ozone anti-correlations at the Brazilian Antarctic Station. In: Quadrennial Ozone Symposium 2000, 2000, Sapporo. Proceedings of the Quadrennial Ozone Symposium 2000, 2000. p. 577-578.

• ECHER, E. ; KIRCHHOFF, V. W. J. H. ; LEME, N. M. P. . Aumentos da Radiação UV-B em presença do Buraco de Ozônio Antártico. In: VII Seminário sobre Pesquisa Antártica, 1999, São Paulo. Anais VII Seminário sobre Pesquisa Antártica, 1999. p. 8-10.

• ECHER, E. ; KIRCHHOFF, V. W. J. H. ; SAHAI, Y. ; LEME, N. M. P. ; SILVA, A. A. ; PAVÃO, H. ; SCHUCH, N J ; ZARATTI, F. ; VALDERRAMA, V. . A Rede de Detectores de Radiação Ultravioleta Solar do INPE. In: 6th International Congress of the Brazilian Geophysical Society, 1999, Rio de Janeiro. Extended Abstracts 6th International Congress of the Brazilian Geophysical Society, 1999.

• POZZER, C. T. ; ECHER, E. ; SALDANHA, F. M. ; GUARNIERI, F L ; PINHEIRO, D. K. ; LÜDKE, E. ; SCHUCH, N J . Software para o Tratamento de Informações Coletadas por um Contador Geiger. In: II Simpósio Nacional de Informática, 1997, Santa Maria. Anais II Simpósio Nacional de Informática, 1997. p. 121-125.

• FRANCO, A. M. S. ; Echer, E. ; BOLZAN, M.J.A. ; FRAENZ, M. . Wavelet analysis of low frequency plasma oscillations in the magnetosheath of Mars. In: European Planetary Science Congress 2017, 2017, Riga. EPSC Abstracts, 2017. v. 11. p. EPSC2017-268.

• MAGALHAES, F. P. ; Echer, E. ; SOUZA ECHER, M. P. ; GONZALEZ, W D . A study on the influence of Io's volcanic activity at the plasma torus variability. In: European Planetary Science Congress 2017, 2017, Riga. EPSC Abstracts, 2017. v. 11. p. EPSC2017-360.

• HESS, S. L. G. ; Echer, E. ; Zarka, P. ; LAMY, L. . Multi-instrument study of the Jovian radio emissions triggered by solar wind shocks. In: European Planetary Science Congress, 2012, Madrid. Proceedings of EPSC 2012, 2012. v. 7. p. 1-2.

• ECHER, E ; Zarka, P. ; GONZALEZ, W D ; Denis, L. ; Morioka, A. . Solar wind dynamic pressure effects on Jupiter non-Io decametric radio emissions. 2010. (Apresentação de Trabalho/Congresso).

• ECHER, E. . Estudo de características e geoefetividade de estruturas magnéticas interplanetárias simples e compostas. São José Campos: INPE, 2005 (Tese de Doutorado).

• ECHER, E. . Observação da Radiação Ultravioleta Solar Tipo B em Banda Larga. Revista Brasileira de Geofísica, v. 17, n. 2, p. 231,, 1999 (Resumo de Teses e Dissertações).

• ECHER, E. . Observação da Radiação Ultravioleta Solar Tipo B em Banda Larga 1999 (Dissertação de Mestrado).

Outras produções

Projetos de pesquisa

• 2020 - 2021

  Análise dos efeitos da temperatura e da pressão atmosférica na intensidade de raios cósmicos galácticos medidos pela rede global de detectores de múons, Descrição: Bolsa de Pós-Doutorado CNPQ Williamary Portugugal. , Situação: Concluído; Natureza: Pesquisa. , Integrantes: Ezequiel Echer - Coordenador.

• 2020 - Atual

  Física de Magnetosferas Planetárias, Descrição: Bolsa de produtividade em pesquisa O principal objetivo desse projeto é o estudo da dinâmica da magnetosfera de Júpiter, através da análise de dados de emissões de rádio, e das magnetosferas induzidas de Vênus e Marte, através da análise das propriedades de ondas ULF com dados de campo magnético e plasma.. , Situação: Em andamento; Natureza: Pesquisa. , Integrantes: Ezequiel Echer - Coordenador.

• 2019 - 2021

  Estudo da variabilidade da atividade auroral em rádio da magnetosfera de Júpiter, Descrição: Projeto de Auxílio a Pesquisa Regular - FAPESP. , Situação: Concluído; Natureza: Pesquisa. , Integrantes: Ezequiel Echer - Coordenador.

• 2018 - 2022

  Estudo do comprimento de correlação nas magnetosferas induzidas de Marte e Vênus, Descrição: Bolsa PCI Adriane Marques de Souza Franco. , Situação: Concluído; Natureza: Pesquisa. , Integrantes: Ezequiel Echer - Coordenador.

• 2016 - 2020

  Estudo de propriedades de choques interplanetários nas proximidades das órbitas de Júpiter e Saturno, Descrição: Bolsa de Produtividade em Pesquisa CNPq. , Situação: Concluído; Natureza: Pesquisa. , Integrantes: Ezequiel Echer - Coordenador.

• 2016 - 2017

  Estudo da variabilidade das emissões decamétricas de Júpietr utilizando as observações do "Juno Ground radio Observations Support" e da espaçonave Juno, Descrição: Bolsa de Pós-Doutorado Manilo Soares Marques. , Situação: Concluído; Natureza: Pesquisa. , Integrantes: Ezequiel Echer - Coordenador.

• 2016 - 2017

  Estudo e previsão de estruturas interplanetárias através da observação de raios cósmicos, Descrição: Bolsa de Pós-Doutorado Rafael Rodrigues Souza de Mendonça. , Situação: Concluído; Natureza: Pesquisa. , Integrantes: Ezequiel Echer - Coordenador.

• 2013 - 2016

  Causas interplanetárias e resposta geomagnética de baixa latitude das intempestades geomagnéticas intensas do ciclo solar 24, Descrição: Bolsa de Pós-Doutorado FAPESP RAswhim Rawat. , Situação: Concluído; Natureza: Pesquisa. , Integrantes: Ezequiel Echer - Coordenador / Rashmi Rawat - Integrante.

• 2013 - 2014

  Bolsa de Pós-Doutorado CNPq - Aline de Lucas, Descrição: Estudo da extensão da bainha magnética à frente de ejeções coronais de mnassa interplanetárias. , Situação: Concluído; Natureza: Pesquisa. , Integrantes: Ezequiel Echer - Coordenador / de Lucas, Aline - Integrante.

• 2013 - 2013

  Resposta auroral em rádio de Júpiter a variações no vento solar, Descrição: Vinda de Pesquisador Visitante FAPESP -Sebastien Hess. , Situação: Concluído; Natureza: Pesquisa. , Integrantes: Ezequiel Echer - Coordenador / Sebastien Hess - Integrante.

• 2012 - 2016

  Bolsa em produtividade CNPq - Origem interplanetária das tempestades geomagneticas intensas no ciclo solar 24, Situação: Concluído; Natureza: Pesquisa. , Integrantes: Ezequiel Echer - Coordenador.

• 2012 - 2014

  Bolsa de Pós-Doutorado FAPESP - Rajkumar Hajra, Descrição: A long-term study on the variability of HILDCAA events and solar wind-magnetosphere coupling. , Situação: Concluído; Natureza: Pesquisa. , Integrantes: Ezequiel Echer - Coordenador / Rajkumar Hajra - Integrante.

• 2012 - 2014

  Auxílio a Pesquisa FAPESP, Descrição: Estudo de ondas de plasma de baixa frequência em corpos não magnetizados do sistema soalr. , Situação: Concluído; Natureza: Pesquisa. , Integrantes: Ezequiel Echer - Coordenador.

• 2012 - 2012

  Vinda de Pesquisador Visitante FAPESP - Gurbax Lakhina, Descrição: Interação entre partículas energéticas e decréscimos magne´ticos no meio interplanetário: difusão perpendicular ressonante e não ressonante. , Situação: Concluído; Natureza: Pesquisa. , Integrantes: Ezequiel Echer - Coordenador / Lakhina, Gurbax S. - Integrante., Financiador(es): Fundação de Amparo à Pesquisa do Estado de São Paulo - Auxílio financeiro.

• 2011 - 2011

  Vinda de pesquisador visitante FAPESP - Sebastien Hess - Estudo dos efeitos do vento solar nas emissões decamétricas de Júpiter não-controladas por Io, Situação: Concluído; Natureza: Pesquisa. , Integrantes: Ezequiel Echer - Coordenador.

• 2009 - 2012

  Estudo de super-tempestades geomagnéticas, Descrição: Projeto Bolsa de Produtividade em Pesquisa CNPQ/PQ 300211/2008-2 Super-tempestades geomagnéticas são gigantescas perturbações no geospaço. Elas são geralmente definidas com o valor de pico do índice geomagnético Dst <-250 nT. Essas perturbações têm origem em regiões ativas solares com intensa atividade, causando uma grande perturbação no espaço interplanetário e na magnetosfera terrestre. Pretende-se neste projeto estudar as orgiens solares, interplanetárias e a dinâmica da magnetosfera durante super-tempestadess geomagnéticas.. , Situação: Concluído; Natureza: Pesquisa. , Integrantes: Ezequiel Echer - Coordenador., Financiador(es): Conselho Nacional de Desenvolvimento Científico e Tecnológico - Bolsa.

• 2009 - 2012

  Bolsa de produtividade em pesquisa CNPq - Estudo de super-tempestades geomagnéticas, Situação: Concluído; Natureza: Pesquisa. , Integrantes: Ezequiel Echer - Coordenador.

• 2009 - 2009

  Auxílio a organização do evento ILWS - CNPq, Situação: Concluído; Natureza: Pesquisa. , Integrantes: Ezequiel Echer - Coordenador.

• 2009 - 2009

  Vinda de Pesquisador Visitante CNPq - Axel Korth - Resposta da lâmina de plasma da magnetocauda a regiões de interação corotantes no vento solar, Situação: Concluído; Natureza: Pesquisa. , Integrantes: Ezequiel Echer - Coordenador.

• 2007 - 2010

  Estudo de ondas de plasma em magnetosferas planetárias, Descrição: Projeto Jovem Pesquisador FAPESP Os plasmas espaciais constituem um rico laboratório para o estudo de processos físicos únicos, que não podem ser reproduzidos em laboratório. No nosso sistema solar, a expansão supersônica da coroa solar permeia o espaço interplanetário com o vento solar magnetizado, o qual interage com obstáculos planetários (campos magnéticos e ionosferas), delimitando as magnetosferas planetárias. Essas são do tipo intrínseco, quando o planeta possui um campo magnético próprio, tais como Mercúrio, Terra, Júpiter, Saturno, Urano e Netuno, ou induzido, quando a magnetosfera é criada pela interação do vento solar com a atmosfera ionizada do planeta, como Vênus e Marte. Uma grande variedade de modos de ondas de plasma é observada no espaço próximo e no interior das magnetosferas planetárias. Este projeto tem por objetivo estudar ondas de plasma nas regiões do pré-choque (foreshock) planetários, da magneto-bainha (magnetosheath) e nas magnetosferas internas dos planetas com campo magnético próprio. Esse estudo será realizado a partir da análise de observações de alta resolução de campo magnético, obtidas por diversas sondas planetárias que vem explorando o sistema solar nas últimas três décadas e será complementado com medidas in-situ de sensores de plasma a bordo das mesmas sondas e observações de solo de radio-telescópios da emissão eletromagnética de rádio de Júpiter.. , Situação: Concluído; Natureza: Pesquisa. , Integrantes: Ezequiel Echer - Coordenador / F L Guarnieri - Integrante / W D Gonzalez - Integrante / Bruce T. Tsurutani - Integrante., Financiador(es): Fundação de Amparo à Pesquisa do Estado de São Paulo - Auxílio financeiro.

• 2007 - 2007

  Vinda de Pesquisador Visitante CNPq - Bruce Tsurutani - Evolução interplanetária de decréscimos no campo magnético inteplanetário, Situação: Concluído; Natureza: Pesquisa. , Integrantes: Ezequiel Echer - Coordenador.

• 2007 - 2007

  Vinda de pesquisador visitante CNPq - Bruce Tsurutani - Estudo da origem solar e interplanetária da extremamente baixa atividade geomagnética observada no recente mínimo prolongado da atividade solar (2008-2010), Situação: Concluído; Natureza: Pesquisa. , Integrantes: Ezequiel Echer - Coordenador.

• 2007 - 2007

  Auxílio a participação de reunião no exterior FAPESP - International CAWSES Symposium, Situação: Concluído; Natureza: Pesquisa. , Integrantes: Ezequiel Echer - Coordenador.

• 2006 - 2009

  Bolsa de Produtividade em Pesquisa CNPq - Geofetividade de estruturas magnéticas interplanetárias, Descrição: (Bolsa de produtividade em Pesquisa CNPq - 300104/2005-7) O principal objetivo deste Projeto é realizar pesquisas sobre os processos físicos que geram campos magnéticos intensos para o sul em diferentes estruturas interplanetárias. Também será avaliada a geoefetividade destas estruturas e a energia transferida pelas mesmas (integral de campo elétrico e da potencia do epsilon de Akasofu) para a magnetosfera.. , Situação: Concluído; Natureza: Pesquisa. , Integrantes: Ezequiel Echer - Coordenador / W D Gonzalez - Integrante., Financiador(es): Conselho Nacional de Desenvolvimento Científico e Tecnológico - Bolsa., Número de produções C, T & A: 3

• 2006 - 2008

  Auxílio Edital Universal CNPq - Estudo da assimetria da corrente anelar durante supertempestades magnéticas, Descrição: (Projeto Edital Universal CNPq) O principal objetivo é o estudo da dependência da hora local das perturbações geomagnéticas durante supertempestades magnéticas, possibilitando o estudo da assimetria da corrente anelar. , Situação: Em andamento; Natureza: Pesquisa. , Integrantes: Ezequiel Echer - Coordenador / W D Gonzalez - Integrante., Financiador(es): Conselho Nacional de Desenvolvimento Científico e Tecnológico - Auxílio financeiro.

• 2006 - 2006

  Projeto de Auxílio a Pesquisa FAPESP - Resposta das cúspides polares da magnetosfera à variações no vento solar, Descrição: (Projeto Auxílio à Pesquisa FAPESP) Este projeto tem por objetivo a aquisição de recursos computacionais e material de consumo para desenvolver o estudo da resposta das regiões das cúspides polares da magnetosfera da Terra à variações no vento solar. Estas regiões, localizadas próximo aos pólos magnéticos da Terra, são regiões onde o campo geomagnético é mais fraco, permitindo a entrada direta de partículas do vento solar e sendo regiões abertas à transferência de massa, momentum e energia do vento solar. Quando o componente Bz do campo magnético interplanetário está direcionado para o sul, a trasnferência de energia se dá via reconexão magnética no lado diurno e quando está para o norte, nos lóbulos da magnetocauda. Este projeto é uma complementação de recente Projeto de Pós-Doutorado do pesquisador (Pq-Ex 04/11115-4). Os dados de plasma e campo magnético da constelação Cluster, obtidos pelo pesquisador durante o Estágio no Instituto Max Planck de Pesquisas do Sistema Solar, serão utilizados, juntamente com os dados do vento solar da sonda ACE e outros dados medidos nas cúspides polares por sondas como o POLAR, para o estudo da resposta das cúspides polares à condições variáveis no vento solar durante o declínio do ciclo solar 23 (2001-2004). Os resultados obtidos desta análise serão comparados com resultados da literatura que estudaram o comportamento das cúspides, no passado e também de outras regiões da magnetosfera à diferentes estruturas magnéticas interplanetárias presentes no vento solar.. , Situação: Concluído; Natureza: Pesquisa. , Integrantes: Ezequiel Echer - Coordenador / W D Gonzalez - Integrante / A Korth - Integrante., Financiador(es): Fundação de Amparo à Pesquisa do Estado de São Paulo - Auxílio financeiro.

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