globalchange  > 影响、适应和脆弱性
DOI: 10.1002/2014MS000305
Scopus记录号: 2-s2.0-84937220043
论文题名:
A slab model of the Great Salt Lake for regional climate simulation
作者: Strong C; , Kochanski A; K; , Crosman E; T
刊名: Journal of Advances in Modeling Earth Systems
ISSN: 19422466
出版年: 2015
卷: 6, 期:3
起始页码: 602
结束页码: 615
语种: 英语
英文关键词: Air ; Atmospheric temperature ; Chloride minerals ; Climate change ; Electric power system interconnection ; Global warming ; Lakes ; Mixing ; Surface properties ; Weather modification ; Air temperature changes ; Effective mixing depths ; Lake surface temperature ; Near surface air temperature ; Regional climate ; Regional climate modeling ; Regional climate simulation ; Satellite based observations ; Climate models ; air temperature ; climate change ; mixing ; regional climate ; satellite data ; slab ; surface temperature ; Great Salt Lake ; United States ; Utah
英文摘要: A slab lake model was developed for the Great Salt Lake (GSL) and coupled to a regional climate model to enable better evaluation of regional effects of projected climate change. The GSL is hypersaline with an area of approximately 4400 km2, and its notable shallowness (the deeper sections average 6.5-9 m at current lake levels) renders it highly sensitive to climate change. A time-independent (constant) effective mixing depth of approximately 5 m was determined for the GSL by numerically optimizing model-observation agreement, and improvement gained using a time-dependent effective mixing depth assumption was smaller than the uncertainty in the satellite-based observations. The slab model with constant effective mixing depth accounted for more than 97% of the variance in satellite-based observations of GSL surface temperature for years 2001 through 2003. Using a lake surface temperature climatology in place of the lake model resulted in annual mean near-surface air temperature differences that were small (∼10-2 K) away from the lake, but differences in annual precipitation downstream reached 3 cm (4.5%) mainly because of enhanced turbulent heat fluxes off the lake during spring. When subjected to a range of pseudo global warming scenarios, the annual mean lake surface temperature increased by 0.8 C per degree of air temperature increase. Key Points Great Salt Lake represented as slab model coupled to regional climate model Framework accounts for 97% of variance in observed lake surface temperature Shallowness renders lake highly sensitive to projected air temperature changes © 2014. The Authors.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/76035
Appears in Collections:影响、适应和脆弱性
气候变化与战略

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作者单位: Department of Atmospheric Sciences, University of Utah, Salt Lake City, Utah, United States

Recommended Citation:
Strong C,, Kochanski A,K,et al. A slab model of the Great Salt Lake for regional climate simulation[J]. Journal of Advances in Modeling Earth Systems,2015-01-01,6(3)
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