Validation of high-resolution TMPA-3B43 precipitation data using rain gauge measurements over the Philippines

Authors

Mark Daryl F. Ramos ⋅ PH Institute of Environmental Science and Meteorology, University of the Philippines Diliman
Gay Jane P. Perez ⋅ PH Institute of Environmental Science and Meteorology, University of the Philippines Diliman

Abstract

This paper presents the validation of monthly precipitation estimate from Tropical Rainfall Measuring Mission Multisatellite Precipitation Analysis (TMPA)—3B43v7 data with the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) rain gauge measurements obtained from different ground stations around the Philippines for the period 1998–2011. This study aims to quantify the accuracy of TMPA-3B43v7 data over the Philippines, which is archipelagic in nature with complex topographic terrain and has regional microclimates. Validation of the TMPA-3B43v7 precipitation estimate with the ground data at a regional scale would contribute to the proper interpretation of satellite data, which could be more useful in future studies given its comprehensive spatial coverage. Statistical analyses were performed at different temporal categories: whole dataset, annual, seasonal, and monthly. Results show varying degree of correlation between the satellite and rain gauge data over the said categories, but with an overall general agreement. These imply the potential value of the precipitation estimate from TMPA-3B43v7 in Philippine climate studies and its applications.

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Issue

2014: Proceedings of the 32nd Samahang Pisika ng Pilipinas Physics Congress

Article ID

SPP2014-PA-01

Section

Poster Session PA

Published

2014-10-17

How to Cite

[1]

MDF Ramos and GJP Perez, Validation of high-resolution TMPA-3B43 precipitation data using rain gauge measurements over the Philippines, Proceedings of the Samahang Pisika ng Pilipinas 32, SPP2014-PA-01 (2014). URL: https://proceedings.spp-online.org/article/view/1848.