Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.3390/rs10030362 |
Accuracy of CHIRPS Satellite-Rainfall Products over Mainland China | |
Bai, Lei1,2,3; Shi, Chunxiang4; Li, Lanhai2; Yang, Yanfen5; Wu, Jing6 | |
通讯作者 | Li, Lanhai |
来源期刊 | REMOTE SENSING
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ISSN | 2072-4292 |
出版年 | 2018 |
卷号 | 10期号:3 |
英文摘要 | Precipitation is the main component of global water cycle. At present, satellite quantitative precipitation estimates (QPEs) are widely applied in the scientific community. However, the evaluations of satellite QPEs have some limitations in terms of the deficiency in observation, evaluation methodology, the selection of time windows for evaluation and short periods for evaluation. The objective of this work is to make some improvements by evaluating the spatio-temporal pattern of the long-terms Climate Hazard Group InfraRed Precipitation Satellite’s (CHIRPS’s) QPEs over mainland China. In this study, we compared the daily precipitation estimates from CHIRPS with 2480 rain gauges across China and gridded observation using several statistical metrics in the long-term period of 1981-2014. The results show that there is significant difference between point evaluation and grid evaluation for CHIRPS. CHIRPS has better performance for a large amount of precipitation than it does for arid and semi-arid land. The change in good performance zones has strong relationship with monsoon’s movement. Therefore, CHIRPS performs better in river basins of southern China and exhibits poor performance in river basins in northwestern and northern China. Moreover, CHIRPS exhibits better in warm season than in Winter, owing to its limited ability to detect snowfall. Nevertheless, CHIRPS is moderately sensitive to the precipitation from typhoon weather systems. The limitations for CHIRPS result from the Tropical Rainfall Measuring Mission (TRMM) 3B42 estimates’ accuracy and valid spatial coverage. |
英文关键词 | CN05.1 ungauged regions PBias CFSR River Basin |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000428280100008 |
WOS关键词 | HIGH-RESOLUTION SATELLITE ; MULTISATELLITE PRECIPITATION ANALYSIS ; PASSIVE MICROWAVE ; TIBETAN PLATEAU ; CLIMATE-CHANGE ; RIVER-BASIN ; TRMM 3B42 ; GAUGE ; REGIONS ; TMPA |
WOS类目 | Remote Sensing |
WOS研究方向 | Remote Sensing |
来源机构 | 中国科学院新疆生态与地理研究所 ; 西北农林科技大学 ; 新疆大学 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/212602 |
作者单位 | 1.Xinjiang Univ, Coll Resources & Environm Sci, Urumqi 830046, Peoples R China; 2.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 4.Natl Meteorol Informat Ctr, Beijing 100081, Peoples R China; 5.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China; 6.Lanzhou Cent Meteorol Observ, Lanzhou 730020, Gansu, Peoples R China |
推荐引用方式 GB/T 7714 | Bai, Lei,Shi, Chunxiang,Li, Lanhai,et al. Accuracy of CHIRPS Satellite-Rainfall Products over Mainland China[J]. 中国科学院新疆生态与地理研究所, 西北农林科技大学, 新疆大学,2018,10(3). |
APA | Bai, Lei,Shi, Chunxiang,Li, Lanhai,Yang, Yanfen,&Wu, Jing.(2018).Accuracy of CHIRPS Satellite-Rainfall Products over Mainland China.REMOTE SENSING,10(3). |
MLA | Bai, Lei,et al."Accuracy of CHIRPS Satellite-Rainfall Products over Mainland China".REMOTE SENSING 10.3(2018). |
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