Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1371/journal.pone.0120026 |
Spatio-Temporal Analysis of the Accuracy of Tropical Multisatellite Precipitation Analysis 3B42 Precipitation Data in Mid-High Latitudes of China | |
Cai, Yancong1,2; Jin, Changjie1; Wang, Anzhi1; Guan, Dexin1; Wu, Jiabing1; Yuan, Fenghui1; Xu, Leilei3 | |
通讯作者 | Wang, Anzhi |
来源期刊 | PLOS ONE
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ISSN | 1932-6203 |
出版年 | 2015 |
卷号 | 10期号:4 |
英文摘要 | Satellite-based precipitation data have contributed greatly to quantitatively forecasting precipitation, and provides a potential alternative source for precipitation data allowing researchers to better understand patterns of precipitation over ungauged basins. However, the absence of calibration satellite data creates considerable uncertainties for The Tropical Rainfall Measuring Mission (TRMM) Multisatellite Precipitation Analysis (TMPA) 3B42 product over high latitude areas beyond the TRMM satellites latitude band (38 degrees NS). This study attempts to statistically assess TMPA V7 data over the region beyond 40 degrees NS using data obtained from numerous weather stations in 1998-2012. Comparative analysis at three timescales (daily, monthly and annual scale) indicates that adoption of a monthly adjustment significantly improved correlation at a larger timescale increasing from 0.63 to 0.95; TMPA data always exhibits a slight overestimation that is most serious at a daily scale (the absolute bias is 103.54%). Moreover, the performance of TMPA data varies across all seasons. Generally, TMPA data performs best in summer, but worst in winter, which is likely to be associated with the effects of snow/ice-covered surfaces and shortcomings of precipitation retrieval algorithms. Temporal and spatial analysis of accuracy indices suggest that the performance of TMPA data has gradually improved and has benefited from upgrades; the data are more reliable in humid areas than in arid regions. Special attention should be paid to its application in arid areas and in winter with poor scores of accuracy indices. Also, it is clear that the calibration can significantly improve precipitation estimates, the overestimation by TMPA in TRMM-covered area is about a third as much as that in no-TRMM area for monthly and annual precipitation. The systematic evaluation of TMPA over mid-high latitudes provides a broader understanding of satellite-based precipitation estimates, and these data are important for the rational application of TMPA methods in climatic and hydrological research. |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000352135600020 |
WOS关键词 | RAIN-GAUGE DATA ; SATELLITE RAINFALL ; ANALYSIS TMPA ; TEMPORAL RESOLUTION ; RIVER-BASIN ; PRODUCTS ; SURFACE ; MODEL ; UNCERTAINTY ; SIMULATION |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/189750 |
作者单位 | 1.Chinese Acad Sci, Inst Appl Ecol, State Key Lab Forest & Soil Ecol, Shenyang 110016, Liaoning, Peoples R China; 2.Chinese Acad Sci, Grad Univ, Beijing, Peoples R China; 3.Chinese Acad Trop Agr Sci, Inst Sci & Tech Informat, Danzhou, Hainan, Peoples R China |
推荐引用方式 GB/T 7714 | Cai, Yancong,Jin, Changjie,Wang, Anzhi,et al. Spatio-Temporal Analysis of the Accuracy of Tropical Multisatellite Precipitation Analysis 3B42 Precipitation Data in Mid-High Latitudes of China[J],2015,10(4). |
APA | Cai, Yancong.,Jin, Changjie.,Wang, Anzhi.,Guan, Dexin.,Wu, Jiabing.,...&Xu, Leilei.(2015).Spatio-Temporal Analysis of the Accuracy of Tropical Multisatellite Precipitation Analysis 3B42 Precipitation Data in Mid-High Latitudes of China.PLOS ONE,10(4). |
MLA | Cai, Yancong,et al."Spatio-Temporal Analysis of the Accuracy of Tropical Multisatellite Precipitation Analysis 3B42 Precipitation Data in Mid-High Latitudes of China".PLOS ONE 10.4(2015). |
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