气候变化领域集成服务门户(CCPortal): A comparison of CCSM4 high-resolution and low-resolution predictions for south Florida and southeast United States drought

CCPortal

DOI	10.1007/s00382-018-4553-0
	A comparison of CCSM4 high-resolution and low-resolution predictions for south Florida and southeast United States drought
	Infanti J.M.; Kirtman B.P.
发表日期	2019
ISSN	0930-7575
起始页码	6877
结束页码	6892
卷号	52 期号:11
英文摘要	It is important to have confidence in seasonal climate predictions of precipitation, particularly related to drought, as implications can be far-reaching and costly—this is particularly true for Florida. Precipitation can vary on fine spatial resolutions, and high-resolution coupled models may be needed to correctly represent precipitation variability. We study south Florida and southeast United States drought in Community Climate System version 4 low resolution (1° atmosphere/ocean) and high-resolution (0.5°atmosphere/0.1°ocean) predictions for time means ranging from 3 to 36 months. The very high-resolution in the ocean is of interest here given the potential importance of Gulf Stream on south Florida rainfall. Skill of shorter time-mean South Florida predictions (i.e. 3- and 12-months) are not impacted by increased resolution, but skill of 36-month mean south Florida precipitation is somewhat increased in the high resolution predictions. Notably, over the broader southeast United States the high-resolution model has higher skill for the 36-month mean rainfall predictions, associated with an improved relationship with tropical Pacific and Gulf Stream SSTA. Why this improvement in the broader southeast United States does not extend to Florida is an open question, but does suggest that even further resolution refinements may be needed. © 2018, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	CCSM4; Climate; Florida; Prediction; Rainfall; Southeast US
语种	英语
scopus关键词	climate modeling; climate prediction; comparative study; drought; precipitation (climatology); rainfall; Atlantic Ocean; Florida [United States]; Gulf Stream; Pacific Ocean; Pacific Ocean (Tropical); United States
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/146248
作者单位	University Corporation for Atmospheric Research, Boulder, CO, United States; Cooperative Institute for Marine and Atmospheric Studies, University of Miami Rosenstiel School of Marine and Atmospheric Sciences, 4600 Rickenbacker Causeway, Miami, Fl 33149, United States; Center for Environmental Studies, Florida Atlantic University, 3200 College Avenue, Davie, Fl 33314, United States
推荐引用方式 GB/T 7714	Infanti J.M.,Kirtman B.P.. A comparison of CCSM4 high-resolution and low-resolution predictions for south Florida and southeast United States drought[J],2019,52(11).
APA	Infanti J.M.,&Kirtman B.P..(2019).A comparison of CCSM4 high-resolution and low-resolution predictions for south Florida and southeast United States drought.Climate Dynamics,52(11).
MLA	Infanti J.M.,et al."A comparison of CCSM4 high-resolution and low-resolution predictions for south Florida and southeast United States drought".Climate Dynamics 52.11(2019).