DOI: 10.1002/2015GL067473
论文题名: Dependence of trends in and sensitivity of drought over China (1961-2013) on potential evaporation model
作者: Zhang J. ; Sun F. ; Xu J. ; Chen Y. ; Sang Y.-F. ; Liu C.
刊名: Geophysical Research Letters
ISSN: 0094-9500
EISSN: 1944-9231
出版年: 2016
卷: 43, 期: 1 起始页码: 206
结束页码: 213
语种: 英语
英文关键词: PDSI drought
; Penman-Monteith
; potential evaporation
Scopus关键词: Evaporation
; Global warming
; Wind
; Mean temperature
; Numerical experiments
; On potentials
; Palmer drought severity indices
; Penman Monteith
; Potential evaporation
; Wind speed
; Drought
; drought
; estimation method
; global warming
; hydrological modeling
; Penman-Monteith equation
; potential evapotranspiration
; sensitivity analysis
; solar radiation
; trend analysis
; wetting
; wind velocity
; China
英文摘要: The Palmer Drought Severity Index (PDSI) can lead to controversial results in assessing droughts responding to global warming. Here we assess recent changes in the droughts over China (1961-2013) using the PDSI with two different estimates, i.e., the Thornthwaite (PDSI-th) and Penman-Monteith (PDSI-pm) approaches. We found that droughts have become more severe in the PDSI-th but slightly lessened in the PDSI-pm estimate. To quantify and interpret the different responses in the PDSI-th and PDSI-pm, we designed numerical experiments and found that drying trend of the PDSI-th responding to the warming alone is 3.4 times higher than that of the PDSI-pm, and the latter was further compensated by decreases in wind speed and solar radiation causing the slightly wetting in the PDSI-pm. Interestingly, we found that interbasin difference in the PDSI-th and PDSI-pm responses to the warming alone tends to be larger in warmer basins, exponentially depending on mean temperature. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84961286245&doi=10.1002%2f2015GL067473&partnerID=40&md5=e894cb8a376a87008d062d92598ca38b
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10463
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: College of Water Sciences, Beijing Normal University, Beijing, China
Recommended Citation:
Zhang J.,Sun F.,Xu J.,et al. Dependence of trends in and sensitivity of drought over China (1961-2013) on potential evaporation model[J]. Geophysical Research Letters,2016-01-01,43(1).