DOI: 10.1175/JCLI-D-13-00579.1
Scopus记录号: 2-s2.0-84902105433
论文题名: Extreme precipitation and climate gradients in patagonia revealed by high-resolution regional atmospheric climate modeling
作者: Lenaerts J.T.M. ; Van Den Broeke M.R. ; Van Wessem J.M. ; Van De Berg W.J. ; Van Meijgaard E. ; Van Ulft L.H. ; Schaefer M.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2014
卷: 27, 期: 12 起始页码: 4607
结束页码: 4621
语种: 英语
Scopus关键词: Atmospheric movements
; Glaciers
; Precipitation (meteorology)
; Annual precipitation
; Atmospheric cooling
; Extreme precipitation
; In-situ observations
; Orographic precipitation
; Precipitation rates
; Snowmelt
; Surface mass balance
; Climate models
; climate change
; climate modeling
; extreme event
; mass balance
; numerical model
; orographic effect
; precipitation (climatology)
; regional climate
; snowmelt
; Andes
; Patagonia
英文摘要: This study uses output of a high-resolution (5.5 km) regional atmospheric climate model to describe the present-day (1979-2012) climate of Patagonia, with a particular focus on the surface mass balance (SMB) of the Patagonian ice fields. Through a comparison with available in situ observations, it is shown that the model is able to simulate the sharp climate gradients in western Patagonia. The southern Andes are an efficient barrier for the prevalent atmospheric flow, generating strong orographic uplift and precipitation throughout the entire year. The model suggests extreme orographic precipitation west of the Andes divide, with annual precipitation rates of > 5 to 34mw.e. (water equivalent), and a clear rain shadow east of the divide. These modeled precipitation rates are supported qualitatively by available precipitation stations and SMB estimates on the ice fields derived from firn cores. For the period 1979-2012, a slight atmospheric cooling at upper ice field elevations is found, leading to a small but insignificant increase in the ice field SMB. © 2014 American Meteorological Society. 资助项目: DGA, Division of Grants and Agreements
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51035
Appears in Collections: 气候变化事实与影响
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作者单位: Institute for Marine and Atmospheric Research, Utrecht University, Utrecht, Netherlands; Royal Netherlands Meteorological Institute, De Bilt, Netherlands; University of Valdivia, Valdivia, Chile
Recommended Citation:
Lenaerts J.T.M.,Van Den Broeke M.R.,Van Wessem J.M.,et al. Extreme precipitation and climate gradients in patagonia revealed by high-resolution regional atmospheric climate modeling[J]. Journal of Climate,2014-01-01,27(12)