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Accuracy Assessment of the Satellite-based IMERG's Monthly Rainfall Data in the Inland Region of Korea
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한반도 육상지역에서의 위성기반 IMERG 월 강수 관측 자료의 정확도 평가

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Type
Academic journal
Author
Ryu, Sumin (세종대학교 환경에너지공간융합학과) Hong, Sungwook (세종대학교 환경에너지공간융합학과)
Journal
한국지구과학회 한국지구과학회지 한국지구과학회지 제39권 제6호 KCI Accredited Journals
Published
2018.1
Pages
533 - 544 (12page)

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Accuracy Assessment of the Satellite-based IMERG's Monthly Rainfall Data in the Inland Region of Korea
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Abstract· Keywords

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Rainfall is one of the most important meteorological variables in meteorology, agriculture, hydrology, natural disaster, construction, and architecture. Recently, satellite remote sensing is essential to the accurate detection, estimation, and prediction of rainfall. In this study, the accuracy of Integrated Multi-satellite Retrievals for GPM (IMERG) product, a composite rainfall information based on Global Precipitation Measurement (GPM) satellite was evaluated with ground observation data in the inland of Korea. The Automatic Weather Station (AWS)-based rainfall measurement data were used for validation. The IMERG and AWS rainfall data were collocated and compared during one year from January 1, 2016 to December 31, 2016. The coastal regions and islands were also evaluated irrespective of the well-known uncertainty of satellite-based rainfall data. Consequently, the IMERG data showed a high correlation (0.95) and low error statistics of Bias (15.08 mm/mon) and RMSE (30.32 mm/mon) in comparison to AWS observations. In coastal regions and islands, the IMERG data have a high correlation more than 0.7 as well as inland regions, and the reliability of IMERG data was verified as rainfall data.
#강수 #정확도 평가

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Bitew, M. M. / 2012 / Evaluation of high-resolution satellite rainfall products through streamflow simulation in a hydrological modeling of a small mountainous watershed in Ethiopia / Journal of hydrometeorology 13(1):338~350 google schola Fisher, E. L. / 1960 / An observational study of the sea breeze / Journal of Meteorology 17(6):645~660 google schola Fisher, E. L. / 1961 / A theoretical study of the sea breeze / Journal of Meteorology 18(2):216~233 google schola Futrell, J. / 2005 / Coauthors, 2005: Water: Challenges at the intersection of human and natural systems :50 google schola Heiblum, R. / 2011 / Analyzing coastal precipitation using TRMM observations / Atmospheric Chemistry and Physics 11(24):13201~13217 google schola

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