Upper Atmosphere Winds
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. Maré lunar observada com radar meteórico em três latitudes no Brasil / Lunar tide observed with meteor radar at three latitudes in Brazil
Using meteor radar data from three Brazilian sites [São João do Cariri (7.4° S ; 36.5° W), Cachoeira Paulista (22.7° S; 45.0° W) and Santa Maria (29.7° S; 53.8° W)], the atmospheric semidiurnal lunar tide in the mesosphere and lower thermosphere was studied from January 2005 to December 2008. Monthly tidal amplitudes and phases were determined using
Publicado em: 2010
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2. Maré lunar observada com radar meteórico em três latitudes no Brasil / Lunar tide observed with meteor radar at three latitudes in Brazil
Usando dados de radares meteóricos de três localidades brasileiras [São João do Cariri (7,4° S ; 36,5° W), Cachoeira Paulista (22,7° S; 45, 0° W) e Santa Maria (29,7° S; 53, 8° W)] foi possível estudar a maré lunar atmosférica semidiurna na região da mesosfera e baixa termosfera para o período de janeiro de 2005 a dezembro de 2008. Para determ
Publicado em: 2010
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3. Eventos extremos de precipitação no leste da Amazônia. / Extreme events of rainfall in Eastern Amazon.
The aim of this study was to characterize the extreme events of rainfall in Eastern Amazon, to analyze on ocean-atmosphere conditions in global scale associated with intense occurrence periods of these events, to contribute for temporal variation comprehension of rainfall extreme events, as well as of determinant phenomena to its occurrence and to make furth
Publicado em: 2010
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4. Implementation of statistical data assimilation system in physical space to the global model of CPTEC / Implementação do sistema estatístico de assimilação de dados em espaço físico para o modelo global do CPTEC
Atmospheric data (such as temperature, moisture, winds), collected by satellites, direct measurements from upper-air instruments and ground observation stations are used in order to estimate the state of the atmosphere as precise as possible. The estimation process, denominated data assimilation consists of observations, and the physical laws, which govern t
Publicado em: 2004