Estudo comparativo dos dados de precipitação do satélite TRMM e postos pluviométricos no estado do Ceará, Brasil.
Revista Geográfica de América Central, ISSN: 1011-484X, Vol: 2, Issue: 65, Page: 257-280
2020
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Metrics Details
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Article Description
Resumo O Nordeste do Brasil, é caracterizado pelo clima semiárido e pela irregularidade das chuvas ao longo do tempo, que comprometem a agricultura, o abastecimento público e outros setores. Neste sentido, pesquisas que promovam o Desenvolvimento Sustentável dão subsídios para a implementação de novas políticas públicas voltadas para a sustentabilidade hídrica da região. Esta pesquisa teve por objetivo, o de comparar dados de chuva das estações pluviométricas da Fundação Cearense de Meteorologia e Recursos Hídricos (FUNCEME), com as estimativas de precipitação do satélite Tropical Rainfall Measuring Mission (TRMM), entre 1 de janeiro de 1998 a 31 de dezembro de 2017, totalizando vinte anos de análises para todo o estado do Ceará, Brasil. Na primeira parte a pesquisa utilizou as técnicas de comparação do Pixel a Ponto (A e B), Ponto a Pixel (C), e Pixel a Pixel (D), juntamente com o auxílio do interpolador Inverso do Peso da Distância (IDW), na segunda etapa os dados foram analisados por medidas métricas de acurácia: Erro Médio Absoluto (EMA), Raiz do Erro Médio Quadrático (REMQ) e o Coeficiente de correlação (r). Os resultados das análises, indicaram que a utilização das imagens do satélite TRMM apresentou-se como boa alternativa com o EMA de 16,46mm na média, o REMQ de 26,78mm e a correlação de 0,96.
Bibliographic Details
https://www.revistas.una.ac.cr/index.php/geografica/article/view/11593; https://www.revistas.una.ac.cr/index.php/geografica/article/download/11593/19551; https://www.revistas.una.ac.cr/index.php/geografica/article/download/11593/19553; https://www.revistas.una.ac.cr/index.php/geografica/article/download/11593/19554; http://dx.doi.org/10.15359/rgac.65-2.10; http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S2215-25632020000200239&lng=en&tlng=en; http://www.scielo.sa.cr/scielo.php?script=sci_abstract&pid=S2215-25632020000200239&lng=en&tlng=en; http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S2215-25632020000200239; http://www.scielo.sa.cr/scielo.php?script=sci_abstract&pid=S2215-25632020000200239; https://dx.doi.org/10.15359/rgac.65-2.10
Universidad Nacional de Costa Rica
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