气候变化领域集成服务门户(CCPortal): Warm Temperature Extremes Across Greenland Connected to Clouds

CCPortal

DOI	10.1029/2019GL086059
	Warm Temperature Extremes Across Greenland Connected to Clouds
	Gallagher M.R.; Chepfer H.; Shupe M.D.; Guzman R.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:9
英文摘要	Greenland ice sheet melt is a large contributor to rising global sea level and melt is dependent on surface air temperature. Arctic temperatures are strongly coupled to clouds but spatial connections between clouds and temperature have yet to be established across Greenland. By mapping spaceborne lidar measurements and surface observations, it is shown that radiatively opaque clouds generally coincide with anomalously warm near-surface temperatures at Greenland sites. These results indicate that both temperatures over 0 °C as well as positive daily temperature anomalies relate to spatially extensive opaque cloud cover. While prior studies indicate that clouds enhance extreme melt events, this research shows that opaque cloud cover and surface warming are closely related across the Greenland ice sheet, particularly in the ablation region. These findings establish broadly the spatial relationships between opaque clouds and temperatures and demonstrate the importance of direct observations across Greenland. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Glaciers; Optical radar; Sea level; Arctic temperature; Daily temperatures; Direct observations; Greenland Ice Sheet; Near surface temperature; Spatial relationships; Surface air temperatures; Surface observation; Meteorology; ablation; air temperature; cloud cover; extreme event; high temperature; ice sheet; lidar; melt; research work; sea level change; surface temperature; warming; Arctic; Greenland; Greenland Ice Sheet
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170410
作者单位	Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, United States; Earth System Research Laboratory, NOAA, Boulder, CO, United States; LMD/IPSL, Sorbonne Université, Ecole Polytechnique, CNRS, Paris, France; LMD/IPSL, Ecole Polytechnique, CNRS, Sorbonne Université, Palaiseau, France
推荐引用方式 GB/T 7714	Gallagher M.R.,Chepfer H.,Shupe M.D.,et al. Warm Temperature Extremes Across Greenland Connected to Clouds[J],2020,47(9).
APA	Gallagher M.R.,Chepfer H.,Shupe M.D.,&Guzman R..(2020).Warm Temperature Extremes Across Greenland Connected to Clouds.Geophysical Research Letters,47(9).
MLA	Gallagher M.R.,et al."Warm Temperature Extremes Across Greenland Connected to Clouds".Geophysical Research Letters 47.9(2020).