Geographical and seasonal characteristics of APHRODITE and GSMaP in Lao P.D.R
Geographical and seasonal characteristics of APHRODITE and GSMaP in Lao P.D.R
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DOI：
10.1088/1755-1315/724/1/012045
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发表时间：
2021-04
期刊：
影响因子：
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通讯作者：
H. Kawai;M. Zaki;K. Noda
中科院分区：
文献类型：
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作者：
H. Kawai;M. Zaki;K. Noda
与水有关的灾害占所有自然灾害的 90%，而且随着气候变化，其发生频率普遍上升。为了应对气候变化，实时网格降水数据非常重要，特别是在没有地面观测的情况下。因此，本研究旨在评估老挝人民民主共和国不同网格降水数据集 APHRODITE 和 GMap 在地理和气候方面的表现。对于海拔因子，发现从高估到低估 GMap 转换时的降水量取决于海拔，因为转换发生在较高海拔等级的降水量较低的情况下。关于气候因素，我们还发现，转换发生在雨季末降水量最少的时候，然后是雨季初，然后是雨季中期。
Water-related hazards account for 90 percent of all-natural hazards, and their frequency is generally rising, in association with climate change. To combat climate change, real-time and gridded precipitation data is important, especially where no ground observation is operated. Hence, this study aimed to assess the performances of different gridded precipitation datasets, APHRODITE and GSMaP in geographical and climate terms, in Lao P.D.R. For the elevation factor, precipitation at the time of conversion from over to underestimation of GSMaP was found to be dependent on elevation, as the conversions occur with lower precipitation in higher elevation classes. About the climate factor, we also found that the conversion happened at smallest precipitation in the end of rainy season, then beginning of rainy season and then middle of the rainy season.