气候变化领域集成服务门户(CCPortal): Intraseasonal, Seasonal, and Interannual Characteristics of Regional Monsoon Simulations in CESM2

CCPortal

DOI	10.1029/2019MS001962
	Intraseasonal, Seasonal, and Interannual Characteristics of Regional Monsoon Simulations in CESM2
	Meehl G.A.; Shields C.; Arblaster J.M.; Annamalai H.; Neale R.
发表日期	2020
ISSN	19422466
卷号	12 期号:6
英文摘要	A survey of intraseasonal, seasonal, and interannual precipitation and 850 hPa winds for various monsoon regimes around the world is presented for the Community Earth System Model Version 2 (CESM2) compared to observations and the previous generation CESM1. In CESM2 the south Asian monsoon has a reduction of excessive precipitation in the western Indian Ocean and an increase of precipitation in the eastern Bay of Bengal and land areas of Vietnam, Cambodia, and Laos. The seasonal timing of the south Asian monsoon, monsoon-ENSO connections, and monsoon intraseasonal variability all are improved compared to CESM1. For the Australian monsoon, deficient precipitation over the Maritime Continent has been improved in CESM2 with increases of precipitation over the large tropical islands of Borneo, Celebes, and Papua New Guinea and decreases over southwestern Australia. In the West African monsoon, May–June seasonal rainfall occurs more preferentially over the African coast in CESM2 as in observations, and excessive rainfall over the Ethiopian region is reduced. During July–September in the West African monsoon, deficient precipitation over equatorial Africa in CESM1 has been lessened in CESM2, and there are increases in precipitation over the Guinean coast, though there is little overall improvement in the South African monsoon. In the South American monsoon, precipitation in CESM2 is improved with increased precipitation over the Amazon in central and western Brazil. CESM2 simulates a reduction of excessive precipitation seen in CESM1 over coastal Mexico extending up into the U.S. Great Plains in the North American monsoon. ©2020. The Authors.
英文关键词	Asian-Australian monsoon; global coupled Earth system modeling; north American monsoon; south American monsoon; west African monsoon
语种	英语
scopus关键词	Landforms; Rain; African monsoons; Earth system model; Equatorial Africa; Intraseasonal variability; Maritime Continent; Seasonal rainfall; West African Monsoon; Western indian oceans; Atmospheric thermodynamics; annual variation; El Nino-Southern Oscillation; monsoon; precipitation (climatology); regional climate; seasonal variation; simulation; Africa; Amazonas [Brazil]; Australia; Bay of Bengal; Borneo; Brazil; Cambodia; Great Plains; Greater Sunda Islands; Indian Ocean; Laos; Mexico [North America]; Papua New Guinea; Sulawesi; Sunda Isles; Viet Nam
来源期刊	Journal of Advances in Modeling Earth Systems
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156703
作者单位	National Center for Atmospheric Research, Boulder, CO, United States; ARC Centre of Excellence for Climate Extremes, Monash University, Melbourne, VIC, Australia; IPRC/Department of Oceanography, University of Hawaii at Manoa, Honolulu, HI, United States
推荐引用方式 GB/T 7714	Meehl G.A.,Shields C.,Arblaster J.M.,et al. Intraseasonal, Seasonal, and Interannual Characteristics of Regional Monsoon Simulations in CESM2[J],2020,12(6).
APA	Meehl G.A.,Shields C.,Arblaster J.M.,Annamalai H.,&Neale R..(2020).Intraseasonal, Seasonal, and Interannual Characteristics of Regional Monsoon Simulations in CESM2.Journal of Advances in Modeling Earth Systems,12(6).
MLA	Meehl G.A.,et al."Intraseasonal, Seasonal, and Interannual Characteristics of Regional Monsoon Simulations in CESM2".Journal of Advances in Modeling Earth Systems 12.6(2020).