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- Title
Comparison of the performance of estimated precipitation data via remote sensing in the Midwest Region of Brazil.
- Authors
de Moraes, Rafael Brandão Ferreira; Gonçalves, Fábio Veríssimo
- Abstract
Consistent precipitation data are essential for hydrological studies and planning of diverse socioeconomic activities. However, the low density of in situ gauges, areas of difficult access and high percentage sampling failures hinder an effective hydrological monitoring in most Brazilian municipalities. The objective of the present study is to compare the performance of precipitation estimates from the Global Precipitation Measurement (GPM), Tropical Rainfall Measurement Mission (TRMM) and Global Precipitation Climatology Project (GPCP) satellites in relation to precipitation data observed on the surface on daily, monthly and seasonal time scales, from 2011 to 2019 in the capital of Mato Grosso do Sul (MS), Midwest Region of Brazil. Seven statistical indicators were used. In general, the performance of the GPM and GPCP estimates are similar and better than the TRMM estimates on the daily scale. On the monthly and seasonal scales, the GPM estimates stand out from the others. It was possible to verify that all precipitation estimates are more reliable in larger time scales and drier periods. Finally, it is concluded that the precipitation estimates of the GPM, TRMM and GPCP satellites can be an alternative in areas that do not have in situ gauges or need to fill sampling failures. Nevertheless, it is recommended to expand the in situ gauges network in Brazil, mainly in the Midwest Region, in order to allow new spatially and temporally more representative studies.
- Subjects
MIDWEST (U.S.); BRAZIL; MATO Grosso do Sul (Brazil); REMOTE sensing; RAINFALL measurement; CLIMATOLOGY; SEASONS
- Publication
Theoretical & Applied Climatology, 2023, Vol 153, Issue 3/4, p1105
- ISSN
0177-798X
- Publication type
Article
- DOI
10.1007/s00704-023-04523-z