Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/joc.5992 |
Assessment of actual evapotranspiration variability over global land derived from seven reanalysis datasets | |
Feng, Taichen1; Su, Tao2; Zhi, Rong3; Tu, Gang4; Ji, Fei1 | |
2019-05-01 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY
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ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2019 |
卷号 | 39期号:6页码:2919-2932 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | With the motivation to identify whether global warming would lead to an increase in the rate of actual evapotranspiration (AE) over land, an assessment is made of AE variability from an ensemble of seven reanalyses (NCEP-NCAR, NCEP-DOE, MERRA, MERRA V2, ERA-Interim, JRA-55, and CFSR). By subdividing global land into nine climatic regions using the aridity index (AI), we examine the variability and long-term trend of regional AE and various related factors. Results indicate that AE shows a significant increasing trend during 1979-2015 in the humid, wet, and arctic regions. Overall, three main parameters, namely, precipitation, surface net solar radiation, and wet-day frequency, strongly influence the temporal variations of AE over most regions. The possible causes of trends in AE are examined in view of the linear trends of the related meteorological variables. Accordingly, increasing potential evapotranspiration and increasing vapour pressure are the main contributors to increasing AE in humid regions. Increasing temperature is the main contributor to increasing AE in wet regions. Both increasing energy supply and water supply on AE largely explain the significant increasing trend of AE in arctic regions. In view of data availability, a correlation analysis was conducted between AE in individual reanalyses and the results from the Mezentsev-Choudhury-Yang equation and the ensemble of the seven reanalyses. On average, NCEP-NCAR is the worst among the seven reanalysis datasets in revealing temporal characteristics of AE. |
英文关键词 | actual evapotranspiration global warming potential evapotranspiration reanalysis |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000465863900005 |
WOS关键词 | PAN EVAPORATION TRENDS ; NCEP-NCAR ; CLIMATE-CHANGE ; WATER ; ENERGY ; CYCLE ; PRECIPITATION ; PERFORMANCE ; FLUXES ; CHINA |
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/182950 |
专题 | 气候变化 |
作者单位 | 1.Lanzhou Univ, Coll Atmospher Sci, Lanzhou, Gansu, Peoples R China; 2.Yangzhou Univ, Coll Phys Sci & Technol, 180 Siwangting Rd, Yangzhou 225009, Jiangsu, Peoples R China; 3.China Meteorol Adm, Lab Climate Studies, Natl Climate Ctr, Beijing, Peoples R China; 4.Jilin Inst Meteorol Sci, Lab Middle High Latitude Circulat & East Asian Mo, Changchun, Jilin, Peoples R China |
推荐引用方式 GB/T 7714 | Feng, Taichen,Su, Tao,Zhi, Rong,et al. Assessment of actual evapotranspiration variability over global land derived from seven reanalysis datasets[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2019,39(6):2919-2932. |
APA | Feng, Taichen,Su, Tao,Zhi, Rong,Tu, Gang,&Ji, Fei.(2019).Assessment of actual evapotranspiration variability over global land derived from seven reanalysis datasets.INTERNATIONAL JOURNAL OF CLIMATOLOGY,39(6),2919-2932. |
MLA | Feng, Taichen,et al."Assessment of actual evapotranspiration variability over global land derived from seven reanalysis datasets".INTERNATIONAL JOURNAL OF CLIMATOLOGY 39.6(2019):2919-2932. |
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