DOI: 10.1002/joc.5431
论文题名: Attribution analysis of changing pan evaporation in the Qinghai–Tibetan Plateau, China
作者: Zhang C. ; Liu F. ; Shen Y.
刊名: International Journal of Climatology
ISSN: 8998418
出版年: 2018
卷: 38 起始页码: e1032
结束页码: e1043
语种: 英语
英文关键词: contribution rate
; pan evaporation
; parameterization
; Qinghai–Tibetan Plateau
; sensitivity analysis
Scopus关键词: Climate models
; Evaporation
; Factor analysis
; Parameterization
; Radiation effects
; Sensitivity analysis
; Wind
; Contribution rate
; Ecological environments
; Evaporative demands
; Pan evaporation
; Qinghai Tibet plateau
; Qinghai-Tibetan plateau
; Qualitative and quantitative analysis
; Vapour pressure deficits
; Climate change
; climate change
; evaporation
; parameterization
; sensitivity analysis
; shortwave radiation
; trend analysis
; vapor pressure
; China
; Qinghai-Xizang Plateau
英文摘要: Pan evaporation (Epan) is reported to have exhibited a decreasing trend in many regions of the world over the past several decades. However, recently, the latest studies have discovered the inconsistent phenomenon that the Epan of some regions showed an increasing trend with climate change. Epan is regarded as a critical indicator that plays a significant role in atmospheric evaporative demand, and its trend has an important significant indication to climate change and ecological environment changes. In this article, we adopted the PenPan model and the method of the total short-wave irradiance of the pan to reparameterize the PenPan-20 model for the Qinghai–Tibet Plateau (QTP). In addition, we employed sensitivity and a contribution model to analyse the attribution of changes in Epan under climate change over the QTP in 1970–2011. The results showed that the PenPan model can be applied to QTP. Furthermore, the results showed significant decreasing trends of Epan in 1970–2001 and insignificant increasing trends of Epan in 2002–2011. Therefore, we compartmentalized the two periods to analyse the cause of changing Epan by sensitivity and contribution rate. Trend analysis determined that the combined effects of decreasing net radiation and wind speed contributed to the decreasing of Epan in 1970–2001, and the increasing vapour pressure deficit contributed to the increasing of Epan in the study area in 2002–2011. Meanwhile, sensitivity analysis revealed that net radiation was the most sensitive factor. In addition, the results of analysis of the contribution rate were consistent with trend analysis. The dominant factor of changing Epan varied in different periods via qualitative and quantitative analysis. © 2018 Royal Meteorological Society Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/116953
Appears in Collections: 气候减缓与适应
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作者单位: College of Biologic and Geographic Sciences, Qinghai Normal University, Xining, China; Key Laboratory of Agricultural Water Resources, Center for Agricultural Resources Research, Chinese Academy of Sciences, Shijiazhuang, China
Recommended Citation:
Zhang C.,Liu F.,Shen Y.. Attribution analysis of changing pan evaporation in the Qinghai–Tibetan Plateau, China[J]. International Journal of Climatology,2018-01-01,38