气候变化领域集成服务门户(CCPortal): Extreme snow events along the coast of the northeast United States: Potential changes due to global warming

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DOI	10.1175/JCLI-D-20-0197.1
	Extreme snow events along the coast of the northeast United States: Potential changes due to global warming
	Chen G.; Wang W.-C.; Cheng C.-T.; Hsu H.-H.
发表日期	2021
ISSN	08948755
起始页码	2337
结束页码	2353
卷号	34 期号:6
英文摘要	Winter extreme snowstorm events along the coast of the northeast United States have significant impacts on social and economic activities, and their potential changes under global warming are of great concern. Here, we adopted the pseudo–global warming approach to investigate the responses of 93 events identified in our previous observational analysis. The study was conducted by contrasting two sets of WRF simulations for each event: the first set driven by the ERA-Interim reanalysis and the second set by that data superimposed with mean-climate changes simulated from HiRAM historical (1980–2004) and future (2075–99; RCP8.5) runs. Results reveal that the warming together with increased moisture tends to decrease the snowfall along the coast but increase the rainfall throughout the region. For example, the number of events having daily snow water equivalent larger than 10 mm day21 at Boston, Massachusetts; New York City, New York; Philadelphia, Pennsylvania; and Washington, D.C., is decreased by 47%, 46%, 30%, and 33%, respectively. The compensating changes in snowfall and rainfall lead to a total-precipitation increase in the three more-southern cities but a decrease in Boston. In addition, the southwestward shift of regional precipitation distribution is coherent with the enhancement (reduction) of upward vertical motion in the south (north) and the movement of cyclone centers (westward in 58% of events and southward in 72%). Finally, perhaps more adversely, because of the northward retreat of the 08C line and the expansion of the near-freezing zone, the number of events with mixed rain and snow and freezing precipitation in the north (especially the inland area) is increased. © 2021 American Meteorological Society.
英文关键词	Climate change; North America; Precipitation; Severe storms; Snow; Winter/cool season
语种	英语
scopus关键词	Economics; Freezing; Global warming; Rain; Storms; Boston ,Massachusetts; Economic activities; Freezing precipitations; New York City ,New York; Observational analysis; Precipitation distribution; Snow water equivalent; Total precipitation; Snow; coastal zone; extreme event; global warming; precipitation intensity; severe weather; snowstorm; weather forecasting; winter; United States
来源期刊	Journal of Climate
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/178673
作者单位	Department of Atmospheric and Oceanic Sciences and Institute of Atmospheric Sciences, Fudan University, Shanghai, China; Atmospheric Sciences Research Center, University at Albany, State University of New York, Albany, NY, United States; National Science and Technology Center for Disaster Reduction, New Taipei City, Taiwan; Research Center for Environmental Changes, Academia Sinica, Taipei, Taiwan
推荐引用方式 GB/T 7714	Chen G.,Wang W.-C.,Cheng C.-T.,et al. Extreme snow events along the coast of the northeast United States: Potential changes due to global warming[J],2021,34(6).
APA	Chen G.,Wang W.-C.,Cheng C.-T.,&Hsu H.-H..(2021).Extreme snow events along the coast of the northeast United States: Potential changes due to global warming.Journal of Climate,34(6).
MLA	Chen G.,et al."Extreme snow events along the coast of the northeast United States: Potential changes due to global warming".Journal of Climate 34.6(2021).