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DOI | 10.1007/s00382-019-04999-4 |
Asian water tower evinced in total column water vapor: a comparison among multiple satellite and reanalysis data sets | |
Zhao, Yin1,2; Zhou, Tianjun1,2,3 | |
2019-10-04 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | The total column water vapor (TCWV) over the Tibetan Plateau (TP) is one important indicator of the Asian water tower, and the changes in the TCWV are vital to the climate and ecosystem in downstream regions. However, the observational data is insufficient to understand the changes in the TCWV due to the high elevation of the TP. Satellite and reanalysis data can be used as substitutes, but their quality needs to be evaluated. In this study, based on a homogenized radiosonde data set, a comprehensive evaluation of the TCWV over the TP derived from two satellite data sets (AIRS-only and AIRS/AMSU) and seven existing reanalysis data sets (MERRA, MERRA2, NCEP1, NCEP2, CFSR, ERA-I, JRA55) is performed in the context of the climatology, annual cycle and interannual variability. Both satellite data sets reasonably reproduce the characteristics of the TCWV over the TP. All reanalysis data sets perform well in reproducing the annual mean climatology of the TCWV over the TP (R = 0.99), except for NCEP1 (R = 0.96) and NCEP2 (R = 0.92). ERA-I is more reliable in capturing the spatial pattern of the annual cycle (R = 0.94), while NCEP1 shows the lowest skill (R = 0.72). JRA55 performs best in capturing the features of the interannual coherent variation (EOF1, R = 0.97). The skill-weighted ensemble mean of the reanalysis data performs better than the unweighted ensemble mean and most of the single reanalysis data sets. The evaluation provides essential information on both the strengths and weaknesses of the major satellite and reanalysis data sets in measuring the total column water vapor over the TP. |
英文关键词 | Asian water tower Total column water vapor Tibetan Plateau Data evaluation Skill weighting |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000488947400002 |
WOS关键词 | TEMPERATURE ; PRODUCTS ; AIRS/AMSU/HSB ; PERFORMANCE ; VALIDATION ; ANTARCTICA ; PROFILES ; RAINFALL |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/187577 |
专题 | 气候变化 |
作者单位 | 1.Chinese Acad Sci, Inst Atmospher Phys, LASG, Beijing 100029, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China |
推荐引用方式 GB/T 7714 | Zhao, Yin,Zhou, Tianjun. Asian water tower evinced in total column water vapor: a comparison among multiple satellite and reanalysis data sets[J]. CLIMATE DYNAMICS,2019. |
APA | Zhao, Yin,&Zhou, Tianjun.(2019).Asian water tower evinced in total column water vapor: a comparison among multiple satellite and reanalysis data sets.CLIMATE DYNAMICS. |
MLA | Zhao, Yin,et al."Asian water tower evinced in total column water vapor: a comparison among multiple satellite and reanalysis data sets".CLIMATE DYNAMICS (2019). |
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