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		<citationkey>BravoSouzBati:2013:EfElFi</citationkey>
		<title>Effects of electric field and neutral wind on the equatorial and low latitude ionosphere during geomagnetically disturbed periods</title>
		<year>2013</year>
		<secondarytype>PRE CI</secondarytype>
		<author>Bravo, Manuel Alejandro,</author>
		<author>Souza, Jonas Rodrigues de,</author>
		<author>Batista, Inez Staciarini,</author>
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		<group>DAE-CEA-INPE-MCTI-GOV-BR</group>
		<affiliation>Instituto Nacional de Pesquisas Espaciais (INPE)</affiliation>
		<affiliation>Instituto Nacional de Pesquisas Espaciais (INPE)</affiliation>
		<affiliation>Instituto Nacional de Pesquisas Espaciais (INPE)</affiliation>
		<electronicmailaddress>manuel.bravo@dae.inpe.br</electronicmailaddress>
		<electronicmailaddress>jonas@dae.inpe.br</electronicmailaddress>
		<electronicmailaddress>inez@dae.inpe.br</electronicmailaddress>
		<e-mailaddress>fatima.usifatti@inpe.br</e-mailaddress>
		<conferencename>Sientific Assembly, 12 (IAGA 2013).</conferencename>
		<conferencelocation>Yucatan, Mexico</conferencelocation>
		<date>Aug. 26-31, 2013</date>
		<booktitle>Abstracts</booktitle>
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		<contenttype>External Contribution</contenttype>
		<keywords>electric field, neutral wind, ionosphere.</keywords>
		<abstract>Solar events generate geomagnetic disturbances on Earth. Furthermore, changes in the electrical current system and in the circulation of winds in the upper atmosphere are produced. These changes disturb the ionosphere, for example, intensifying or inhibiting the Equatorial Ionization Anomaly, introducing anomalous variations in the amplitude and height of the F-layer peak, in the E-layer and in the occurrence of sporadic layers, among others effects. The disturbed electric fields will generate disturbed E x B drifts, which are very important for the electrodynamical processes at the equatorial regions. Furthermore, as one of the transport mechanisms for the charged particles is neutral wind drag, the plasma transport will also be modified by the disturbed wind. During magnetically disturbed periods, disturbances in several ionospheric parameters measured by Digisonde are observed, but the existing ionospheric models are unable to represent the observations properly. In this work we will use the ionospheric model SUPIM (Sheffield University Plasmasphere Ionosphere Model) in order to simulate the ionospheric behavior at different stations in the equatorial and low latitude regions in Brazil during some geomagnetically disturbed events. To find a pattern in these circumstances, we will adjust the input parameters, in this case, electric field and neutral winds, because we know that these parameters vary in these periods, until the results of the model can explain the electron density variations observed on Digisonde data at various stations.</abstract>
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		<language>en</language>
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