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Study of day-to-day variability of the mesosphere, thermosphere and ionosphere at low latitude and equatorial region, during the solar cycle 24

Grant number:12/08445-9
Support Opportunities:Research Projects - Thematic Grants
Start date: March 01, 2013
End date: February 28, 2019
Field of knowledge:Physical Sciences and Mathematics - Geosciences - Geophysics
Principal Investigator:Paulo Roberto Fagundes
Grantee:Paulo Roberto Fagundes
Host Institution: Instituto de Pesquisa e Desenvolvimento (IP&D). Universidade do Vale do Paraíba (UNIVAP). São José dos Campos , SP, Brazil
City of the host institution:São José dos Campos
Principal investigatorsClezio Marcos de Nardin
Associated researchers:Alan Prestes ; Alessandra Abe Pacini ; Alexandre Alvares Pimenta ; Caius Lucius Selhorst ; Francisco Carlos Rocha Fernandes ; JOSÉ AUGUTO BITTENCOURT ; José Ricardo Abalde Guede ; Marcio Tadeu de Assis Honorato Muella ; Marlos Rockenbach da Silva ; Maurício José Alves Bolzam ; Washington Luiz Carvalho Lima ; Yogeshwar Sahai
Associated research grant(s):18/04187-1 - COMMITTEE ON SPACE RESEARCH - COSPAR 2018, AR.EXT
16/20520-7 - AGU Fall Meeting 2016, AR.EXT
14/09583-1 - 40th COSPAR Scientific Assembly, AR.EXT
Associated scholarship(s):18/10679-4 - The study of planetary and lunar tide waves interaction in the ionosphere, BP.DR
16/10495-5 - Study of ionosphere and thermosphere during extreme space weather conditions during the descending phase of solar cycle 24 (2015, 2016 and 2017), BP.DR
15/24791-2 - Study of ionospheric F layer multiple stratification near equatorial region and low latitude., BP.PD
 + associated scholarships 14/10124-1 - Thermosphere and ionosphere coupling during geomagnetic disturbed periods in the low-latitude and equatorial region, during the solar cycle 24, BP.MS
13/25037-4 - Study of F3 layer and sudden stratospheric warming effects in low-latitude ionosphere and equatorial region, during solar cycle 24, BP.PD
13/20494-8 - Study of the polarized decametric radio emission measured by riometers, BP.IC
13/09274-6 - Diagnosis of precursor phase of solar flares based on the identification and the analysis of metric emissions recorded by CALLISTO-BR, BP.IC - associated scholarships

Abstract

The main purpose of this project is study day-to-day variability of the dynamics upper atmosphere (mesosphere and thermosphere) and ionosphere electrodynamics, during the solar cycle 24, at low-latitudes and equatorial region, Brazilian sector, using a network of four observatories. Also, complementary data from other sectors and satellite data will be used in this project. The following topics will be study: a) Mesosphere-thermosphere, thermosphere-ionosphere, magnetosphere-thermosphere-ionosphere coupling during geomagnetic quiet and disturbed periods, b) Gravity waves and planetary waves propagations at mesosphere and thermosphere, c) Travelling Ionospheric Disturbances (TIDs) and Meso-Scale Travelling Ionospheric Disturbances (MSTIDs) propagation at ionospheric heights, d) Equatorial Large scale and bottom side ionospheric irregularities generation, evolution and propagation studies, e) Ionospheric F3 layer studies at equatorial and low-latitude regions; f) Ionospheric and upper atmospheric signatures of sudden stratospheric warming at equatorial and lo-latitude region, g) Study of the equatorial eletroject and counter eletroject in the American sector. (AU)

Articles published in Agência FAPESP Newsletter about the research grant:
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Scientific publications (67)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
ARAUJO RESENDE, LAYSA CRISTINA; BATISTA, INEZ STACIARINI; DENARDINI, CLEZIO MARCOS; BATISTA, PAULO PRADO; CARRASCO, ALEXANDER JOSE; ANDRIOLI, VANIA FATIMA; MORO, JULIANO. The influence of tidal winds in the formation of blanketing sporadic e-layer over equatorial Brazilian region. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS, v. 171, n. SI, p. 64-71, . (12/08445-9, 14/11198-9)
ARAUJO RESENDE, LAYSA CRISTINA; BATISTA, INEZ STACIARINI; DENARDINI, CLEZIO MARCOS; CARRASCO, ALEXANDER JOSE; ANDRIOLI, VANIA DE FATIMA; MORO, JULIANO; BATISTA, PAULO PRADO; CHEN, SONY SU. Competition between winds and electric fields in the formation of blanketing sporadic E layers at equatorial regions. EARTH PLANETS AND SPACE, v. 68, . (12/08445-9, 14/11198-9, 12/08769-9)
VENKATESH, K.; RAO, P. V. S. RAMA; SEEMALA, GOPI K.; PRASAD, D. S. V. V. D.. Latitudinal variation in the occurrence of GPS L-band scintillations associated with the day-to-day changes in TEC, h'F and the ExB drift velocity and their impact on GPS satellite signals. Journal of Earth System Science, v. 124, n. 3, p. 497-513, . (12/08445-9)
VENKATESH, K.; FAGUNDES, P. R.; DE JESUS, R.; DE ABREU, A. J.; PILLAT, V. G.; SUMOD, S. G.. Assessment of IRI-2012 profile parameters by comparison with the ones inferred using NeQuick2, ionosonde and FORMOSAT-1 data during the high solar activity over Brazilian equatorial and low latitude sector. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS, v. 121, n. A, p. 10-23, . (12/08445-9)
DE ABREU, ALESSANDRO JOSE; MARTIN, INACIO MALMONGE; DE JESUS, RODOLFO; ALVES BOLZAN, MAURICIO JOSE; VENKATESH, KAVUTARAPU; FAGUNDES, PAULO ROBERTO; ALVES, MAURO ANGELO; GENDE, MAURICIO; KUMAR, SANJAY. Comparison of GPS-TEC measurements with IRI2012-TEC predictions in the Brazilian sector during the unusual solar minimum 2009. ANNALS OF GEOPHYSICS, v. 60, n. 3, . (12/08445-9)
BOLZAN, MAURICIO J. A.; DENARDINI, CLEZIO M.; TARDELLI, ALEXANDRE. Comparison of H component geomagnetic field time series obtained at different sites over South America. Annales Geophysicae, v. 36, n. 3, p. 937-943, . (12/08445-9, 15/24791-2)
BARBOSA, F. R. E.; FAGUNDES, P. R.; VENKATESH, K.; FEJER, B. G.; PILLAT, V. G.; DENARDINI, C. M.; MUELLA, M. T. A. H.. Multi-scale ionospheric irregularities occurrence over South America during the St. Patrick's day storm on March 17, 2015. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS, v. 174, p. 32-45, . (12/08445-9)
CUNHA-SILVA, R. D.; FERNANDES, F. C. R.; SELHORST, C. L.. Shock wave driven by CME evidenced by metric type II burst and EUV wave. Advances in Space Research, v. 56, n. 12, p. 2804-2810, . (12/08445-9, 14/10489-0, 12/00009-5)
DUARTE-SILVA, MARCELO H.; MUELLA, MARCIO T. A. H.; SILVA, LIDIANNE C. C.; DE ABREU, ALESSANDRO J.; FAGUNDES, PAULO R.. Ionospheric slab thickness at the equatorial anomaly region after the deep solar minimum of cycle 23/24. Advances in Space Research, v. 56, n. 9, p. 1961-1972, . (12/08445-9)
FAGUNDES, P. R.; GONCHARENKO, L. P.; DE ABREU, A. J.; VENKATESH, K.; PEZZOPANE, M.; DE JESUS, R.; GENDE, M.; COSTER, A. J.; PILLAT, V. G.. Ionospheric response to the 2009 sudden stratospheric warming over the equatorial, low, and middle latitudes in the South American sector. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, v. 120, n. 9, p. 7889-7902, . (12/08445-9)
MORO, J.; DENARDINI, C. M.; RESENDE, L. C. A.; CHEN, S. S.; SCHUCH, N. J.. Equatorial E region electric fields at the dip equator: 1. Variabilities in eastern Brazil and Peru. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, v. 121, n. 10, p. 10220-10230, . (12/08445-9, 14/11198-9)
VENKATESH, K.; FAGUNDES, P. R.; DE ABREU, A. J.; PILLAT, V. G.. Unusual noon-time bite-outs in the ionospheric electron density around the anomaly crest locations over the Indian and Brazilian sectors during quiet conditions - A case study. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS, v. 147, p. 126-137, . (12/08445-9)
PERNA, L.; VENKATESH, K.; PILLAT, V. G.; PEZZOPANE, M.; FAGUNDES, P. R.; EZQUER, R. G.; CABRERA, M. A.. Bottom side profiles for two close stations at the southern crest of the EIA: Differences and comparison with IRI-2012 and NeQuick2 for low and high solar activity. Advances in Space Research, v. 61, n. 1, p. 295-315, . (12/08445-9)
NOGUEIRA, PAULO A. B.; ABDU, MANGALATHAYIL A.; SOUZA, JONAS R.; DENARDINI, CLEZIO M.; BARBOSA NETO, PAULO F.; SERRA DE SOUZA DA COSTA, JOAO P.; SILVA, ANA P. M.. Latitude-dependent delay in the responses of the equatorial electrojet and S-q currents to X-class solar flares. Annales Geophysicae, v. 36, n. 1, p. 139-147, . (12/08445-9)
FAGUNDES, P. R.; CARDOSO, F. A.; FEJER, B. G.; VENKATESH, K.; RIBEIRO, B. A. G.; PILLAT, V. G.. Positive and negative GPS-TEC ionospheric storm effects during the extreme space weather event of March 2015 over the Brazilian sector. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, v. 121, n. 6, p. 5613-5625, . (12/08445-9)
SILVA, R. P.; SOUZA, J. R.; SOBRAL, J. H. A.; DENARDINI, C. M.; BORBA, G. L.; SANTOS, M. A. F.. Ionospheric Plasma Bubble Zonal Drift Derived From Total Electron Content Measurements. RADIO SCIENCE, v. 54, n. 7, p. 580-589, . (12/08445-9, 17/50115-0)
VENKATESH, K.; FAGUNDES, P. R.; SEEMALA, GOPI K.; DE JESUS, R.; DE ABREU, A. J.; PILLAT, V. G.. On the performance of the IRI-2012 and NeQuick2 models during the increasing phase of the unusual 24th solar cycle in the Brazilian equatorial and low-latitude sectors. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, v. 119, n. 6, p. 5087-5105, . (12/08445-9)
DE JESUS, R.; BATISTA, I. S.; DE ABREU, A. J.; FAGUNDES, P. R.; VENKATESH, K.; DENARDINI, C. M.. Observed effects in the equatorial and low-latitude ionosphere in the South American and African sectors during the 2012 minor sudden stratospheric warming. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS, v. 157, p. 78-89, . (12/08445-9)
TAKAHASHI, H.; WRASSE, C. M.; DENARDINI, C. M.; PADUA, M. B.; DE PAULA, E. R.; COSTA, S. M. A.; OTSUKA, Y.; SHIOKAWA, K.; GALERA MONICO, J. F.; IVO, A.; et al. Ionospheric TEC Weather Map Over South America. SPACE WEATHER-THE INTERNATIONAL JOURNAL OF RESEARCH AND APPLICATIONS, v. 14, n. 11, p. 937-949, . (12/08445-9)
TARDELLI, A.; FAGUNDES, P. R.; PEZZOPANE, M.; VENKATESH, K.; PILLAT, V. G.. Seasonal and solar activity variations of F-3 layer and quadruple stratification (StF-4) near the equatorial region. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, v. 121, n. 12, p. 12116-12125, . (12/08445-9, 15/24791-2)
VENKATESH, K.; RAO, P. V. S. RAMA; SEEMALA, GOPI K.; PRASAD, D. S. V. V. D.. Latitudinal variation in the occurrence of GPS L-band scintillations associated with the day-to-day changes in TEC, h'F and the ExB drift velocity and their impact on GPS satellite signals. JOURNAL OF EARTH SYSTEM SCIENCE, v. 124, n. 3, p. 17-pg., . (12/08445-9)
DE JESUS, R.; BATISTA, I. S.; FAGUNDES, P. R.; VENKATESH, K.; DE ABREU, A. J.. Ionospheric response to the 2006 sudden stratospheric warming event over the equatorial and low latitudes in the Brazilian sector using GPS observations. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS, v. 154, p. 92-103, . (12/08445-9)
ARAUJO RESENDE, LAYSA CRISTINA; BATISTA, INEZ STACIARINI; DENARDINI, CLEZIO MARCOS; BATISTA, PAULO PRADO; CARRASCO, ALEXANDER JOSE; ANDRIOLI, VANIA DE FATIMA; MORO, JULIANO. Simulations of blanketing sporadic E-layer over the Brazilian sector driven by tidal winds. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS, v. 154, p. 104-114, . (12/08445-9, 14/11198-9, 12/08769-9)
CONCEICAO-SANTOS, FREDSON; MUELLA, MARCIO T. A. H.; RESENDE, LAYSA C. A.; FAGUNDES, PAULO R.; ANDRIOLI, VANIA F.; BATISTA, PAULO P.; PILLAT, VALDIR G.; CARRASCO, ALEXANDER J.. Occurrence and Modeling Examination of Sporadic-E Layers in the Region of the South America (Atlantic) Magnetic Anomaly. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, v. 124, n. 11, . (12/08445-9, 18/15973-8)
RIBEIRO, B. A. G.; FAGUNDES, P. R.; VENKATESH, K.; TARDELLI, A.; PILLAT, V. G.; SEEMALA, G. K.. Equatorial and low-latitude positive ionospheric phases due to moderate geomagnetic storm during high solar activity in January 2013. Advances in Space Research, v. 64, n. 4, p. 995-1010, . (12/08445-9, 16/10495-5)
TARDELLI, A.; PEZZOPANE, M.; FAGUNDES, P. R.; VENKATESH, K.; PILLAT, V. G.; CABRERA, M. A.; EZQUER, R. G.. Study of the F3 and StF4 Layers at Tucuman Near the Southern Crest of the Equatorial Ionization Anomaly in Western South America. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, v. 123, n. 3, p. 2156-2167, . (12/08445-9, 15/24791-2)
RESENDE, LAYSA C. A.; ARRAS, CHRISTINA; BATISTA, INEZ S.; DENARDINI, CLEZIO M.; BERTOLLOTTO, THAINA O.; MORO, JULIANO. Study of sporadic E layers based on GPS radio occultation measurements and digisonde data over the Brazilian region. Annales Geophysicae, v. 36, n. 2, p. 587-593, . (17/01332-8, 12/08445-9, 14/11198-9)
RESENDE, L. C. A.; ZHU, Y.; DENARDINI, C. M.; BATISTA, I. S.; SHI, J.; MORO, J.; CHEN, S. S.; CONCEICAO-SANTOS, F.; DA SILVA, L. A.; ANDRIOLI, V. F.; et al. New Findings of the Sporadic E (Es) Layer Development Around the Magnetic Equator During a High-Speed Solar (HSS) Wind Stream Event. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, v. 126, n. 9, . (12/08445-9, 19/09361-2)
MORO, JULIANO; DENARDINI, CLEZIO MARCOS; ARAUJO RESENDE, LAYSA CRISTINA; CHEN, SONY SU; SCHUCH, NELSON JORGE. Influence of uncertainties of the empirical models for inferring the E-region electric fields at the dip equator. EARTH PLANETS AND SPACE, v. 68, p. 15-pg., . (14/11198-9, 12/08445-9)
ARAUJO RESENDE, LAYSA CRISTINA; BATISTA, INEZ STACIARINI; DENARDINI, CLEZIO MARCOS; CARRASCO, ALEXANDER JOSE; ANDRIOLI, VANIA DE FATIMA; MORO, JULIANO; BATISTA, PAULO PRADO; CHEN, SONY SU. Competition between winds and electric fields in the formation of blanketing sporadic E layers at equatorial regions. EARTH PLANETS AND SPACE, v. 68, p. 14-pg., . (14/11198-9, 12/08769-9, 12/08445-9)
CONCEICAO-SANTOS, FREDSON; MUELLA, MARCIO T. A. H.; RESENDE, LAYSA C. A.; FAGUNDES, PAULO R.; ANDRIOLI, VANIA F.; BATISTA, PAULO P.; CARRASCO, ALEXANDER J.. On the role of tidal winds in the descending of the high type of sporadic layer (Es-h). Advances in Space Research, v. 65, n. 9, p. 17-pg., . (18/15973-8, 12/08445-9)
VENKATESH, K.; RAO, P. V. S. RAMA; FAGUNDES, PAULO R.. The role of altitudinal variation of scale height in determining the topside electron density profile over equatorial and low latitude sectors. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS, v. 121, n. A, p. 72-82, . (12/08445-9)
CONCEICAO-SANTOS, FREDSON; MUELLA, MARCIO T. A. H.; RESENDE, LAYSA C. A.; FAGUNDES, PAULO R.; ANDRIOLI, VANIA F.; BATISTA, PAULO P.; CARRASCO, ALEXANDER J.. On the role of tidal winds in the descending of the high type of sporadic layer (Es-h). Advances in Space Research, v. 65, n. 9, SI, p. 2131-2147, . (12/08445-9, 18/15973-8)
ANDRIOLI, V. F.; XU, J.; BATISTA, P. P.; PIMENTA, A. A.; RESENDE, L. C. A.; SAVIO, S.; FAGUNDES, P. R.; YANG, G.; JIAO, J.; CHENG, X.; et al. Nocturnal and Seasonal Variation of Na and K Layers Simultaneously Observed in the MLT Region at 23 degrees S. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, v. 125, n. 3, . (12/08445-9)
MORO, JULIANO; DENARDINI, CLEZIO MARCOS; ARAUJO RESENDE, LAYSA CRISTINA; CHEN, SONY SU; SCHUCH, NELSON JORGE. Influence of uncertainties of the empirical models for inferring the E-region electric fields at the dip equator. EARTH PLANETS AND SPACE, v. 68, . (12/08445-9, 14/11198-9)
DENARDINI, CLEZIO MARCOS; ARAUJO RESENDE, LAYSA CRISTINA; MORO, JULIANO; CHEN, SONY SU. Occurrence of the blanketing sporadic E layer during the recovery phase of the October 2003 superstorm. EARTH PLANETS AND SPACE, v. 68, . (12/08445-9, 14/11198-9)
DENARDINI, C. M.; CHEN, S. S.; RESENDE, L. C. A.; MORO, J.; BILIBIO, A. V.; FAGUNDES, P. R.; GENDE, M. A.; CABRERA, M. A.; BOLZAN, M. J. A.; PADILHA, A. L.; et al. The Embrace Magnetometer Network for South America: Network Description and Its Qualification. RADIO SCIENCE, v. 53, n. 3, p. 288-302, . (12/08445-9, 14/11198-9)
DENARDINI, C. M.; CHEN, S. S.; RESENDE, L. C. A.; MORO, J.; BILIBIO, A. V.; FAGUNDES, P. R.; GENDE, M. A.; CABRERA, M. A.; BOLZAN, M. J. A.; PADILHA, A. L.; et al. The Embrace Magnetometer Network for South America: First Scientific Results. RADIO SCIENCE, v. 53, n. 3, p. 379-393, . (12/08445-9)
DE ABREU, A. J.; ROBERTO, M.; ALVES, M. A.; ABALDE, J. R.; NOGUEIRA, P. A. B.; VENKATESH, K.; FAGUNDES, P. R.; DE JESUS, R.; GENDE, M.; MARTIN, I. M.. Effects of X2-class solar flare events on ionospheric GPS-TEC and radio waves over Brazilian sector. Advances in Space Research, v. 63, n. 11, p. 3586-3605, . (12/08445-9)
DE JESUS, R.; BATISTA, I. S.; JONAH, O. F.; DE ABREU, A. J.; FAGUNDES, P. R.; VENKATESH, K.; DENARDINI, C. M.. An Investigation of the Ionospheric Disturbances Due to the 2014 Sudden Stratospheric Warming Events Over Brazilian Sector. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, v. 122, n. 11, p. 11698-11715, . (12/08445-9)
MORO, J.; RESENDE, L. C. A.; DENARDINI, C. M.; XU, J.; BATISTA, I. S.; ANDRIOLI, V. F.; CARRASCO, A. J.; BATISTA, P. P.; SCHUCH, N. J.. Equatorial E Region Electric Fields and Sporadic E Layer Responses to the Recovery Phase of the November 2004 Geomagnetic Storm. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, v. 122, n. 12, p. 12517-12533, . (12/08445-9, 14/11198-9, 00/09510-1)
KLAUSNER, V.; ALMEIDA, T.; DE MENESES, F. C.; KHERANI, E. A.; PILLAT, V. G.; MUELLA, M. T. A. H.; FAGUNDES, P. R.. First Report on Seismogenic Magnetic Disturbances over Brazilian Sector. PURE AND APPLIED GEOPHYSICS, v. 174, n. 3, p. 737-745, . (12/08445-9, 11/21903-3)
VIEIRA, F.; FAGUNDES, P. R.; VENKATESH, K.; GONCHARENKO, L. P.; PILLAT, V. G.. Total electron content disturbances during minor sudden stratospheric warming, over the Brazilian region: A case study during January 2012. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, v. 122, n. 2, p. 2119-2135, . (12/08445-9)
ANDRIOLI, V. F.; XU, J.; BATISTA, P. P.; PIMENTA, A. A.; RESENDE, L. C. A.; SAVIO, S.; FAGUNDES, P. R.; YANG, G.; JIAO, J.; CHENG, X.; et al. Nocturnal and Seasonal Variation of Na and K Layers Simultaneously Observed in the MLT Region at 23°S. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, v. 125, n. 3, p. 16-pg., . (12/08445-9)
DIAS, M. A. L.; FAGUNDES, P. R.; VENKATESH, K.; PILLAT, V. G.; RIBEIRO, B. A. G.; SEEMALA, G. K.; ARCANJO, M. O.. Daily and Monthly Variations of the Equatorial Ionization Anomaly (EIA) Over the Brazilian Sector During the Descending Phase of the Solar Cycle 24. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, v. 125, n. 9, . (16/10495-5, 12/08445-9)
ARAUJO RESENDE, LAYSA CRISTINA; BATISTA, INEZ STACIARINI; DENARDINI, CLEZIO MARCOS; BATISTA, PAULO PRADO; CARRASCO, ALEXANDER JOSE; ANDRIOLI, VANIA FATIMA; MORO, JULIANO. The influence of tidal winds in the formation of blanketing sporadic e-layer over equatorial Brazilian region. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS, v. 171, p. 8-pg., . (14/11198-9, 12/08445-9)
DENARDINI, CLEZIO MARCOS; ARAUJO RESENDE, LAYSA CRISTINA; MORO, JULIANO; CHEN, SONY SU. Occurrence of the blanketing sporadic E layer during the recovery phase of the October 2003 superstorm. EARTH PLANETS AND SPACE, v. 68, p. 9-pg., . (14/11198-9, 12/08445-9)
AGYEI-YEBOAH, EBENEZER; FAGUNDES, PAULO ROBERTO; TARDELLI, ALEXANDRE; PILLAT, VALDIR GIL; PIGNALBERI, ALESSIO; KAVUTARAPU, VENKATESH; PEZZOPANE, MICHAEL; VIEIRA, FRANCISCO. Ground and satellite-based observations of ionospheric plasma bubbles and blobs at 5.65 degrees latitude in the Brazilian sector. Advances in Space Research, v. 67, n. 8, p. 2416-2438, . (12/08445-9)
VENKATESH, K.; RAO, P. V. S. RAMA; FAGUNDES, PAULO R.. The role of altitudinal variation of scale height in determining the topside electron density profile over equatorial and low latitude sectors. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS, v. 121, p. 11-pg., . (12/08445-9)
VENKATESH, K.; FAGUNDES, P. R.; DE JESUS, R.; DE ABREU, A. J.; PILLAT, V. G.; SUMOD, S. G.. Assessment of IRI-2012 profile parameters by comparison with the ones inferred using NeQuick2, ionosonde and FORMOSAT-1 data during the high solar activity over Brazilian equatorial and low latitude sector. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS, v. 121, p. 14-pg., . (12/08445-9)
MORO, J.; DENARDINI, C. M.; RESENDE, L. C. A.; CHEN, S. S.; SCHUCH, N. J.. Equatorial E region electric fields at the dip equator: 2. Seasonal variabilities and effects over Brazil due to the secular variation of the magnetic equator. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, v. 121, n. 10, p. 10231-10239, . (12/08445-9, 14/11198-9)
DENARDINI, C. M.; MORO, J.; RESENDE, L. C. A.; CHEN, S. S.; SCHUCH, N. J.; COSTA, J. E. R.. E region electric field dependence of the solar activity. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, v. 120, n. 10, p. 8934-8941, . (12/08445-9, 14/11198-9)
VENKATESH, K.; FAGUNDES, P. R.; PRASAD, D. S. V. V. . D.; DENARDINI, C. M.; DE ABREU, A. J.; DE JESUS, R.; GENDE, M.. Day-to-day variability of equatorial electrojet and its role on the day-to-day characteristics of the equatorial ionization anomaly over the Indian and Brazilian sectors. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, v. 120, n. 10, p. 9117-9131, . (12/08445-9)
PILLAT, VALDIR GIL; FAGUNDES, PAULO ROBERTO; FRUTUOSO GUIMARAES, LARNARTINE NOGUEIRA. Automatically identification of Equatorial Spread-F occurrence on ionograms. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS, v. 135, p. 118-125, . (12/08445-9)
TARDELLI, A.; FAGUNDES, P. R.. Observations of ionospheric F layer quadruple stratification near equatorial region. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, v. 120, n. 1, p. 834-840, . (12/08445-9)
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