%0 Journal Article %@holdercode {isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S} %@nexthigherunit 8JMKD3MGPCW/3ETL868 %@resumeid 8JMKD3MGP5W/3C9JHDA %@resumeid %@resumeid %@resumeid %@resumeid 8JMKD3MGP5W/3C9JHFE %X This study reports on ionospheric disturbances that occurred in the early morning hours in the South American-Atlantic sector during a few intense/super storm events. The events were observed at latitudes close to the southern crest of the equatorial ionization anomaly (EIA) as an unusual intensification of the F region electron density peak at local times when the EIA is not usually developed. All the events were observed at pre dawn-morning hours, under conditions of northward interplanetary geomagnetic field. Large scale traveling ionospheric disturbances that are launched during highly disturbed conditions and/or equatorward surges in the thermospheric meridional winds seem to be the most probable causes of the observed disturbances. (C) 2012 COSPAR. Published by Elsevier Ltd. All rights reserved. %8 June %N 11 %T Early morning enhancement in ionospheric electron density during intense magnetic storms %@electronicmailaddress inez@dae.inpe.br %@electronicmailaddress %@electronicmailaddress %@electronicmailaddress %@electronicmailaddress jonas@dae.inpe.br %@secondarytype PRE PI %K geomagnetic disturbances, equatorial ionization anomaly, disturbed winds, traveling ionospheric disturbances equatorial ionosphere, latitude ionosphere, july 15, disturbance, sector, region, system, fields, model. %@archivingpolicy denypublisher denyfinaldraft24 %@usergroup administrator %@usergroup banon %@usergroup lattes %@usergroup secretaria.cpa@dir.inpe.br %@group DAE-CEA-INPE-MCTI-GOV-BR %@group DAE-CEA-INPE-MCTI-GOV-BR %@group DAE-CEA-INPE-MCTI-GOV-BR %@group DAE-CEA-INPE-MCTI-GOV-BR %@group DAE-CEA-INPE-MCTI-GOV-BR %@group DAE-CEA-INPE-MCTI-GOV-BR %@group DAE-CEA-INPE-MCTI-GOV-BR %@e-mailaddress jonas@dae.inpe.br %3 Batista-AdvSpaRes-1-s2.0-S0273117712000294-main[1].pdf %@secondarymark B4_ASTRONOMIA_/_FÍSICA B3_CIÊNCIAS_BIOLÓGICAS_I B1_ENGENHARIAS_III B1_ENGENHARIAS_IV B1_GEOCIÊNCIAS B1_INTERDISCIPLINAR %F lattes: 3848282835080232 5 BatistaAbNoPaSoReRi:2012:EaMoEn %@issn 0273-1177 %2 dpi.inpe.br/plutao/2012/06.21.18.48.54 %@affiliation Instituto Nacional de Pesquisas Espaciais (INPE) %@affiliation Instituto Nacional de Pesquisas Espaciais (INPE) %@affiliation Instituto Nacional de Pesquisas Espaciais (INPE) %@affiliation Instituto Nacional de Pesquisas Espaciais (INPE) %@affiliation Instituto Nacional de Pesquisas Espaciais (INPE) %@affiliation Instituto Nacional de Pesquisas Espaciais (INPE) %@affiliation Instituto Nacional de Pesquisas Espaciais (INPE) %@project CNPq[301643/2009-1] %B Advances in Space Research %@versiontype publisher %P 1544-1552 %4 dpi.inpe.br/plutao/2012/06.21.18.48 %@documentstage not transferred %D 2012 %V 49 %@doi 10.1016/j.asr.2012.01.006 %O Setores de Atividade: Atividades profissionais, científicas e técnicas. %A Batista, Inez Staciarini, %A Abdu, M. A., %A Nogueira, Paulo Alexandre B, %A Paes, Ricardo R., %A Souza, Jonas Rodrigues de, %A Reinisch, Bodo W., %A Rios, Victor Hugo, %@dissemination WEBSCI; PORTALCAPES; MGA; COMPENDEX. %@area CEA