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Ionospheric plasma bubble and total electron content monitoring and mapping over the Brazilian territory to researches and applications

Grant number: 06/06585-7
Support type:Regular Research Grants
Duration: April 01, 2007 - March 31, 2009
Field of knowledge:Physical Sciences and Mathematics - Geosciences
Principal Investigator:Eurico Rodrigues de Paula
Grantee:Eurico Rodrigues de Paula
Home Institution: Instituto Nacional de Pesquisas Espaciais (INPE). Ministério da Ciência, Tecnologia, Inovações e Comunicações (Brasil). São José dos Campos , SP, Brazil


The ionosphere, due to the presence of electrons and ions, causes delay in the electromagentic signals crossing it. At tropical latitudes, besides such delay, the existence of the ionospheric plasma irregularities causes scintillation in the GPS signals that can affect the GPS navigation and positioning or even can interrupt such services. This delay in the signal is quantified by the total elctron content (TEC). The TEC as well as the scintillations are parameters that can be measured by GPS receivers. In Brasil we have an array of many GPS receivers to determine the TEC and about 14 scintillation monitors and many more will be installed in 2007. These data need to be storaged and leave availablein the WEB in real time. Computational tools like data mining and neural arrays are going to be used to try to correlate the measured parameters and the irregularity occurrence, ie, to try to predict the irregularities. Based on this data base many development of codes and scientific research activities are going to be developed. (AU)

Scientific publications
(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)
LUIZ FELIPE CAMPOS DE REZENDE; EURICO RODRIGUES DE PAULA; INEZ STACIARINI BATISTA; IVAN JELINEK KANTOR; MARCIO TADEU DE ASSIS HONORATO MUELLA. Study of ionospheric irregularities during intense magnetic storms. Revista Brasileira de Geofísica, v. 25, p. 151-158, 2007.

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