globalchange  > 影响、适应和脆弱性
DOI: 10.1002/2013JD019964
论文题名:
Similarity and difference of the two successive V6 and V7 TRMM multisatellite precipitation analysis performance over China
作者: Chen S.; Hong Y.; Cao Q.; Gourley J.J.; Kirstetter P.-E.; Yong B.; Tian Y.; Zhang Z.; Shen Y.; Hu J.; Hardy J.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期:23
起始页码: 13060
结束页码: 13074
语种: 英语
英文关键词: China ; evaluation ; Satellite QPE ; TRMM
Scopus关键词: Precipitation (chemical) ; China ; Correlation coefficient ; evaluation ; Qinghai-Tibetan plateau ; Root-mean-square errors ; Statistical performance ; TRMM ; Tropical rainfall measuring missions ; Arid regions ; algorithm ; error analysis ; precipitation (climatology) ; real time ; satellite imagery ; seasonality ; spatial analysis ; TRMM ; China
英文摘要: Similarities and differences of spatial error structures of surface precipitation estimated with successive version 6 (V6) and version 7 (V7) Tropical Rainfall Measuring Mission (TRMM) Multisatellite Precipitation Analysis (TMPA) algorithms are systematically analyzed through comparison with the China Meteorological Administration's national daily precipitation analysis from June 2008 to May 2011. The TMPA products include V6 and V7 real-time products 3B42RTV6 and 3B42RTV7 and research products 3B42V6 and 3B42V7. Both versions of research products outperform their respective real-time counterparts. 3B42V7 clearly improves upon 3B42V6 over China in terms of daily mean precipitation; the correlation coefficient (CC) increases from 0.89 to 0.93, the relative bias (RB) improves from -4.91% to -0.05%, and the root-mean-square error (RMSE) improves from 0.69 mm to 0.54 mm. When considering 3 year mean precipitation, 3B42V7 shows similar spatial patterns and statistical performance to 3B42V6. Both 3B42RTV7 and 3B42RTV6 demonstrate similar bias patterns in most regions of China with overestimation by 20% in arid regions (i.e., the north and west of China) and slight underestimation in humid regions (e.g., -5.82% in southern China). However, 3B42RTV7 overestimates precipitation more than 3B42RTV6 in the cold Qinghai-Tibetan plateau, resulting in a much higher RB of 139.95% (128.69%, 136.09%, and 121.11%) in terms of 3 year annual (spring, summer, and autumn) daily mean precipitation and an even worse performance during winter. In this region, 3B42RTV7 shows an overall slightly degraded performance than 3B42RTV6 with CC decreasing from 0.81 to 0.73 and RB (RMSE) increasing from 21.22% (0.95 mm) to 35.84% (1.27 mm) in terms of daily precipitation. Key Points Quantified error structures of the latest two-version TRMM products over China 3B42V7 effectively improves upon Version 6 products over China 3B42RTV7 does not show much improvement over 3B42RTV6 ©2013. American Geophysical Union. All Rights Reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63105
Appears in Collections:影响、适应和脆弱性
气候减缓与适应

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作者单位: School of Civil Engineering and Environmental Science, University of Oklahoma, Norman OK, United States; Hydrometeorology and Remote Sensing Laboratory, University of Oklahoma, Norman OK, United States; Advanced Radar Research Center, National Weather Center, 120 David L. Boren Blvd, Norman, OK 73072-7303, United States; NOAA/National Severe Storms Laboratory, Norman OK, United States; State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing, China; Earth System Science Interdisciplinary Center, University of Maryland, College Park MD, United States; Hydrological Sciences Laboratory, NASA Goddard Space Flight Center, Greenbelt MD, United States; Jiansu Key Laboratory of Forestry Ecological Engineering, Nanjing Forestry University, Nanjing, China; National Meteorological Information Center, China Meteorological Administration, Beijing, China; School of Computer Science, University of Oklahoma, Norman OK, United States

Recommended Citation:
Chen S.,Hong Y.,Cao Q.,et al. Similarity and difference of the two successive V6 and V7 TRMM multisatellite precipitation analysis performance over China[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(23)
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