DOI: 10.1002/2016GL071392
论文题名: Importance of vegetation processes for model spread in the fast precipitation response to CO2 forcing
作者: DeAngelis A.M. ; Qu X. ; Hall A.
刊名: Geophysical Research Letters
ISSN: 0094-8292
EISSN: 1944-8023
出版年: 2016
卷: 43, 期: 24 起始页码: 12550
结束页码: 12559
语种: 英语
英文关键词: CO2 forcing
; fast response
; model spread
; precipitation
; stomatal response
; vegetation schemes
Scopus关键词: Carbon
; Carbon dioxide
; Climate models
; Heat flux
; Precipitation (chemical)
; Precipitation (meteorology)
; Surface measurement
; Vegetation
; Fast response
; Global precipitation
; Physiological response
; Radiative perturbation
; Sensible heat flux
; Stomatal conductance
; Stomatal response
; Vegetation response
; Physiological models
英文摘要: In the current generation of climate models, the projected increase in global precipitation over the 21st century ranges from 2% to 10% under a high-emission scenario. Some of this uncertainty can be traced to the rapid response to carbon dioxide (CO2) forcing. We analyze an ensemble of simulations to better understand model spread in this rapid response. A substantial amount is linked to how the land surface partitions a change in latent versus sensible heat flux in response to the CO2-induced radiative perturbation; a larger increase in sensible heat results in a larger decrease in global precipitation. Model differences in the land surface response appear to be strongly related to the vegetation response to increased CO2, specifically, the closure of leaf stomata. Future research should thus focus on evaluation of the vegetation physiological response, including stomatal conductance parameterizations, for the purpose of constraining the fast response of Earth's hydrologic cycle to CO2 forcing. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85007320129&doi=10.1002%2f2016GL071392&partnerID=40&md5=f1cc39e946933ee684286ec41617fe67
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9255
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: Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles, CA, United States
Recommended Citation:
DeAngelis A.M.,Qu X.,Hall A.. Importance of vegetation processes for model spread in the fast precipitation response to CO2 forcing[J]. Geophysical Research Letters,2016-01-01,43(24).