Verification of APHRODITE Precipitation Data Set in Bangladesh

نویسندگان

چکیده

We investigated the preformance of Asian Precipitation-Highly-Resolved Observational Data Integration Towards Evaluation (APHRODITE) water resources precipitation products in Bangladesh taking rain gauge data as reference for a 3-year period (2003-2005). Various statistical and categorical indices such coefficient correlation (CC), bias, relative bias (RB), mean absolute error (MAE), root square (RMSE), probability detection (POD), false alarm ratio (FAR), were applied to measure performance product. With CC value 0.85, 0.91, RB -9.5%, MAE 7.7 mm, RMSE 15.2 mm product tended underestimate rainfall values during study period. Although, POD score 1.00 demonstrated very good skill detecting occurrence events, FAR 0.25 indicated considerable amount alarms. Moreover, threshold increased, underestimation became more prominent over region. Analysis on basis location gauges also showed that APHRODITE consistently underestimated with increase extreme thresholds.
 Journal Engineering Science 12(1), 2021, 51-56

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ژورنال

عنوان ژورنال: Journal of engineering science

سال: 2021

ISSN: ['2587-3474', '2587-3482']

DOI: https://doi.org/10.3329/jes.v12i1.53101