气候变化领域集成服务门户(CCPortal): Contribution of Snow Cover Decline to Projected Warming Over North America

CCPortal

DOI	10.1029/2019GL084414
	Contribution of Snow Cover Decline to Projected Warming Over North America
	Diro G.T.; Sushama L.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:1
英文摘要	Given the critical role that snow plays in modulating current climate, it is vital to examine the contribution of the projected snow decline to the future warming. This is investigated over North America using regional climate modeling experiments with prescribed current and future snow conditions. Results indicate that the decline in snow contributes to future warming by up to 2°C and 4°C, respectively, to annual and spring temperature increases. Results also show that decline in snow depth and cover lead to the attenuation (amplification) of cold (warm) extremes. The rate of intensification of warm extremes is higher over the snow-abundant regions of northern Canada—where current snow cover fraction is close to one. The largest attenuation in cold extremes, on the other hand, is over snow marginal regions of the Great Plains and Prairies. These results demonstrate the spatiotemporal differences in projected changes exclusively associated with snow cover and depth decline. ©2019. American Geophysical Union. All Rights Reserved.
英文关键词	Earth sciences; Geophysics; North America; Northern Canada; Regional climate modeling; Snow covers; Snow depths; Spring temperatures; Temperature extremes; Snow; climate feedback; extreme event; global warming; high temperature; prairie; regional climate; snow cover; Canada; Great Plains
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/170848
作者单位	Department of Civil Engineering and Applied Mechanics and Trottier Institute for Sustainability in Engineering and Design, McGill University, Montreal, Canada; Canadian Meteorological Centre, Environment and Climate Change Canada, Dorval, QC, Canada
推荐引用方式 GB/T 7714	Diro G.T.,Sushama L.. Contribution of Snow Cover Decline to Projected Warming Over North America[J],2020,47(1).
APA	Diro G.T.,&Sushama L..(2020).Contribution of Snow Cover Decline to Projected Warming Over North America.Geophysical Research Letters,47(1).
MLA	Diro G.T.,et al."Contribution of Snow Cover Decline to Projected Warming Over North America".Geophysical Research Letters 47.1(2020).