DOI: 10.1002/2016GL067720
论文题名: The implication of nonradiative energy fluxes dominating Greenland ice sheet exceptional ablation area surface melt in 2012
作者: Fausto R.S. ; Van As D. ; Box J.E. ; Colgan W. ; Langen P.L. ; Mottram R.H.
刊名: Geophysical Research Letters
ISSN: 0094-9195
EISSN: 1944-8926
出版年: 2016
卷: 43, 期: 6 起始页码: 2649
结束页码: 2658
语种: 英语
英文关键词: Greenland
; melt
; melt models
Scopus关键词: Ablation
; Budget control
; Glaciers
; Ice
; Melting
; Weather information services
; Automatic weather stations
; Greenland
; Greenland Ice Sheet
; Nonradiative energy
; Regional climate modeling
; Regional climate models
; Surface energy budget
; Turbulent energies
; Climate models
; ablation
; climate change
; climate modeling
; energy budget
; energy flux
; radiative forcing
; regional climate
; snowmelt
; surface energy
; weather station
; Arctic
; Greenland
; Greenland Ice Sheet
英文摘要: During two exceptionally large July 2012 multiday Greenland ice sheet melt episodes, nonradiative energy fluxes (sensible, latent, rain, and subsurface collectively) dominated the ablation area surface energy budget of the southern and western ice sheet. On average the nonradiative energy fluxes contributed up to 76% of daily melt energy at nine automatic weather station sites in Greenland. Comprising 6% of the ablation period, these powerful melt episodes resulted in 12-15% of the south and west Greenland automatic weather station annual ablation totals. Analysis of high resolution (∼5 km) HIRHAM5 regional climate model output indicates widespread dominance of nonradiative energy fluxes across the western ablation area during these episodes. Yet HIRHAM5 still underestimates melt by up to 56% during these episodes due to a systematic underestimation of turbulent energy fluxes typical of regional climate models. This has implications for underestimating future melt, when exceptional melt episodes are expected to occur more frequently. ©2016. The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84977955886&doi=10.1002%2f2016GL067720&partnerID=40&md5=20b4d8f56920d4b11bde6cc21751510d
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10158
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: Geological Survey of Denmark and Greenland (GEUS), Copenhagen, Denmark
Recommended Citation:
Fausto R.S.,Van As D.,Box J.E.,et al. The implication of nonradiative energy fluxes dominating Greenland ice sheet exceptional ablation area surface melt in 2012[J]. Geophysical Research Letters,2016-01-01,43(6).