Distribution of Accuracy of TRMM Daily Rainfall in Makassar Strait

Forum Geografi

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Title Distribution of Accuracy of TRMM Daily Rainfall in Makassar Strait
Creator Giarno, G
Hadi, Muhammad Pramono
Suprayogi, Slamet
Murti, Sigit Heru
Subject Geography
rainfall pattern; accuracy of TRMM; monsoon; Indonesia; Makassar Strait
Remote Sensing, Meteorology
Description This research aims to evaluate rainfall estimates of satellite products in regions that have high variations of rainfall pattern. The surrounding area of Makassar Strait have chosen because of its distinctive rainfall pattern between the eastern and western parts of the Makassar Strait. For this purpose, spatial distribution of Pearson’s coefficient correlation and Root Mean Square Error (RMSE) is used to evaluate accuracy of rainfall in the eastern part of Kalimantan Island and the western part of Sulawesi Island. Moreover, we also used the contingency table to complete the parameter accuracy of the TRMM rainfall estimates. The results show that the performance of TRMM rainfall estimates varies depending on space and time. Overall, the coefficient correlation between TRMM and rain observed from no correlation was -0.06 and 0.78 from strong correlation. The best correlation is on the eastern coast of South West Sulawesi located in line with the Java Sea. While, no variation in the correlation was related to flatland such as Kalimantan Island. On the other hand, in the mountain region, the correlation of TRMM rainfall estimates and observed rainfall tend to decrease. The RMSE distribution in this region depends on the accumulation of daily rainfall. RMSE tends to be high where there are higher fluctuations of fluctuating rainfall in a location. From contingency indicators, we found that the TRMM rainfall estimates were overestimate. Generally, the absence of rainfall during the dry season contributes to improving TRMM rainfall estimates by raising accuracy (ACC) in the contingency table.
Publisher Universitas Muhammadiyah Surakarta
Date 2018-05-09
Type info:eu-repo/semantics/article

comparing point to pixel
Format application/pdf
Identifier http://journals.ums.ac.id/index.php/fg/article/view/5774
Source Forum Geografi; Vol 32, No 1 (2018): July 2018; 38-52
Language eng
Relation http://journals.ums.ac.id/index.php/fg/article/view/5774/4074
Coverage Surrounding Makassar Strait
Evaluation TRMM rainfall estimation
Rights Copyright (c) 2018 Giarno Arno, Muhammad Pramono Hadi, Slamet Suprayogi, Sigit Heru Murti

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