DOI: 10.1002/grl.50923
论文题名: Have greenhouse gases intensified the contrast between wet and dry regions?
作者: Polson D. ; Hegerl G.C. ; Allan R.P. ; Sarojini B.B.
刊名: Geophysical Research Letters
ISSN: 0094-8577
EISSN: 1944-8308
出版年: 2013
卷: 40, 期: 17 起始页码: 4783
结束页码: 4787
语种: 英语
英文关键词: detection and attribution
; precipitation
; water cycle
Scopus关键词: Climate model simulations
; Data uncertainty
; Detection and attributions
; External forcing
; Greenhouse-gas forcing
; Human influences
; Precipitation change
; Water cycle
; Oceanography
; Precipitation (chemical)
; Greenhouse gases
; amplification
; anthropogenic effect
; climate modeling
; greenhouse effect
; greenhouse gas
; precipitation quality
; satellite data
; season
英文摘要: While changes in land precipitation during the last 50 years have been attributed in part to human influences, results vary by season, are affected by data uncertainty and do not account for changes over ocean. One of the more physically robust responses of the water cycle to warming is the expected amplification of existing patterns of precipitation minus evaporation. Here, precipitation changes in wet and dry regions are analyzed from satellite data for 1988-2010, covering land and ocean. We derive fingerprints for the expected change from climate model simulations that separately track changes in wet and dry regions. The simulations used are driven with anthropogenic and natural forcings combined, and greenhouse gas forcing or natural forcing only. Results of detection and attribution analysis show that the fingerprint of combined external forcing is detectable in observations and that this intensification of the water cycle is partly attributable to greenhouse gas forcing. Key Points Human influence is detected in changes in precipitation for land and ocean Intensification of the watercycle is attributable to greenhouse gas forcing Wet gets wetter and dry gets drier more consistent over ocean than land ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84883737213&doi=10.1002%2fgrl.50923&partnerID=40&md5=d3f8d4bc74342d7ce2b2338c4be24159
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/5841
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: Grant Institute of Earth Science, School of GeoSciences, University of Edinburgh, West Mains Road, Edinburgh EH9 3JW, United Kingdom
Recommended Citation:
Polson D.,Hegerl G.C.,Allan R.P.,et al. Have greenhouse gases intensified the contrast between wet and dry regions?[J]. Geophysical Research Letters,2013-01-01,40(17).