Correlation between estimated satellite precipitation and surface data for application in climatological studies

Abstract

The objective of this paper is to purpose new opportunities on the collect of daily, monthly and annual precipitation data, purposing as an alternative the use of data obtained through satellites such as CHIRPS, CMorph and TRMM. For this article were correlated data from this three sensors with data collected on the surface from the Official Meteorological Station of SIMEPAR at Curitiba/PR. Such data were organized in matrix and dispersion graphics with the use of the “Corrplot” tool at the RStudio software. The results pointed that the best correlation were found at the annual scale and monthly scale at the CHIRPS sensor, with correlation values of 0.85 and 0.86 respectively and at the daily scale, the correlation were lower, registering 0.52 for the TRMM and CMORPH sensors.

Keywords

• Climatologia
• Precipitação
• Coleta de dados
• Satélites