DOI: 10.1002/2016GL068418
论文题名: Thermodynamic and dynamic controls on changes in the zonally anomalous hydrological cycle
作者: Wills R.C. ; Byrne M.P. ; Schneider T.
刊名: Geophysical Research Letters
ISSN: 0094-9023
EISSN: 1944-8754
出版年: 2016
卷: 43, 期: 9 起始页码: 4640
结束页码: 4649
语种: 英语
英文关键词: climate change
; hydrological cycle
; moisture transport
; precipitation
Scopus关键词: Budget control
; Climate change
; Global warming
; Moisture
; Precipitation (chemical)
; Atmospheric circulation changes
; Atmospheric moisture
; Atmospheric moisture content
; Dynamic controls
; Hydrological cycles
; Moisture fluxes
; Moisture transport
; Zonal variations
; Climate models
英文摘要: The wet gets wetter, dry gets drier paradigm explains the expected moistening of the extratropics and drying of the subtropics as the atmospheric moisture content increases with global warming. Here we show, using precipitation minus evaporation (P - E) data from climate models, that it cannot be extended to apply regionally to deviations from the zonal mean. Wet and dry zones shift substantially in response to shifts in the stationary-eddy circulations that cause them. Additionally, atmospheric circulation changes lead to a smaller increase in the zonal variance of P - E than would be expected from atmospheric moistening alone. The P - E variance change can be split into dynamic and thermodynamic components through an analysis of the atmospheric moisture budget. This reveals that a weakening of stationary-eddy circulations and changes in the zonal variation of transient-eddy moisture fluxes moderate the strengthening of the zonally anomalous hydrological cycle with global warming. © 2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84969983773&doi=10.1002%2f2016GL068418&partnerID=40&md5=ac8f01558d88a5ea983abaef5312bdee
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9986
Appears in Collections: 科学计划与规划 气候变化与战略
There are no files associated with this item.
作者单位: Geological Institute, ETH Zürich, Zürich, Switzerland
Recommended Citation:
Wills R.C.,Byrne M.P.,Schneider T.. Thermodynamic and dynamic controls on changes in the zonally anomalous hydrological cycle[J]. Geophysical Research Letters,2016-01-01,43(9).