Assessment of actual evapotranspiration variability over global land derived from seven reanalysis datasets
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...
Published in: | International Journal of Climatology |
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crwiley:10.1002/joc.5992 2023-10-29T02:34:14+01:00 Assessment of actual evapotranspiration variability over global land derived from seven reanalysis datasets Feng, Taichen Su, Tao Zhi, Rong Tu, Gang Ji, Fei National Natural Science Foundation of China Postdoctoral Science Foundation of Jiangsu Province National Natural Science Foundation of China 2019 http://dx.doi.org/10.1002/joc.5992 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjoc.5992 https://onlinelibrary.wiley.com/doi/pdf/10.1002/joc.5992 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/joc.5992 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.5992 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor International Journal of Climatology volume 39, issue 6, page 2919-2932 ISSN 0899-8418 1097-0088 Atmospheric Science journal-article 2019 crwiley https://doi.org/10.1002/joc.5992 2023-10-02T17:19:27Z 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. Article in Journal/Newspaper Arctic Global warming Wiley Online Library (via Crossref) International Journal of Climatology 39 6 2919 2932 |
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Open Polar |
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Wiley Online Library (via Crossref) |
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crwiley |
language |
English |
topic |
Atmospheric Science |
spellingShingle |
Atmospheric Science Feng, Taichen Su, Tao Zhi, Rong Tu, Gang Ji, Fei Assessment of actual evapotranspiration variability over global land derived from seven reanalysis datasets |
topic_facet |
Atmospheric Science |
description |
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. |
author2 |
National Natural Science Foundation of China Postdoctoral Science Foundation of Jiangsu Province National Natural Science Foundation of China |
format |
Article in Journal/Newspaper |
author |
Feng, Taichen Su, Tao Zhi, Rong Tu, Gang Ji, Fei |
author_facet |
Feng, Taichen Su, Tao Zhi, Rong Tu, Gang Ji, Fei |
author_sort |
Feng, Taichen |
title |
Assessment of actual evapotranspiration variability over global land derived from seven reanalysis datasets |
title_short |
Assessment of actual evapotranspiration variability over global land derived from seven reanalysis datasets |
title_full |
Assessment of actual evapotranspiration variability over global land derived from seven reanalysis datasets |
title_fullStr |
Assessment of actual evapotranspiration variability over global land derived from seven reanalysis datasets |
title_full_unstemmed |
Assessment of actual evapotranspiration variability over global land derived from seven reanalysis datasets |
title_sort |
assessment of actual evapotranspiration variability over global land derived from seven reanalysis datasets |
publisher |
Wiley |
publishDate |
2019 |
url |
http://dx.doi.org/10.1002/joc.5992 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjoc.5992 https://onlinelibrary.wiley.com/doi/pdf/10.1002/joc.5992 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/joc.5992 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.5992 |
genre |
Arctic Global warming |
genre_facet |
Arctic Global warming |
op_source |
International Journal of Climatology volume 39, issue 6, page 2919-2932 ISSN 0899-8418 1097-0088 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/joc.5992 |
container_title |
International Journal of Climatology |
container_volume |
39 |
container_issue |
6 |
container_start_page |
2919 |
op_container_end_page |
2932 |
_version_ |
1781056709666537472 |