干旱区生态环境知识资源中心(Arid): Terrestrial Evaporation and Global Climate: Lessons from Northland, a Planet with a Hemispheric Continent

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DOI	10.1175/JCLI-D-20-0452.1
	Terrestrial Evaporation and Global Climate: Lessons from Northland, a Planet with a Hemispheric Continent
	Lague, Marysa M.; Pietschnig, Marianne; Ragen, Sarah; Smith, Timothy A.; Battisti, David S.
通讯作者	Lague, MM (corresponding author), Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA. ; Lague, MM (corresponding author), Univ Saskatchewan, Coldwater Lab, Canmore, AB, Canada.
来源期刊	JOURNAL OF CLIMATE
ISSN	0894-8755
EISSN	1520-0442
出版年	2021
卷号	34 期号:6 页码:2253-2276
英文摘要	Motivated by the hemispheric asymmetry of land distribution on Earth, we explore the climate of Northland, a highly idealized planet with a Northern Hemisphere continent and a Southern Hemisphere ocean. The climate of Northland can be separated into four distinct regions: the Southern Hemisphere ocean, the seasonally wet tropics, the midlatitude desert, and the Great Northern Swamp. We evaluate how modifying land surface properties on Northland drives changes in temperatures, precipitation patterns, the global energy budget, and atmospheric dynamics. We observe a surprising response to changes in land surface evaporation, where suppressing terrestrial evaporation in Northland cools both land and ocean. In previous studies, suppressing terrestrial evaporation has been found to lead to local warming by reducing latent cooling of the land surface. However, reduced evaporation can also decrease atmospheric water vapor, reducing the strength of the greenhouse effect and leading to large-scale cooling. We use a set of idealized climate model simulations to show that suppressing terrestrial evaporation over Northern Hemisphere continents of varying size can lead to either warming or cooling of the land surface, depending on which of these competing effects dominates. We find that a combination of total land area and contiguous continent size controls the balance between local warming from reduced latent heat flux and large-scale cooling from reduced atmospheric water vapor. Finally, we demonstrate how terrestrial heat capacity, albedo, and evaporation all modulate the location of the ITCZ both over the continent and over the ocean.
英文关键词	Energy transport Atmosphere-land interaction Climatology Evaporation Water vapor Climate models General circulation models
类型	Article
语种	英语
开放获取类型	Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000646372800017
WOS关键词	GENERAL-CIRCULATION ; HEAT-TRANSPORT ; ENERGY BUDGET ; ATMOSPHERE ; SURFACE ; MODEL ; MAXIMUM ; ALBEDO ; CYCLE ; CO2
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
来源机构	University of California, Berkeley
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350768
作者单位	[Lague, Marysa M.] Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA; [Lague, Marysa M.] Univ Saskatchewan, Coldwater Lab, Canmore, AB, Canada; [Pietschnig, Marianne] Univ Exeter, Dept Math, Exeter, Devon, England; [Ragen, Sarah] Univ Washington, Sch Oceanog, Seattle, WA 98195 USA; [Smith, Timothy A.] Univ Texas Austin, Oden Inst Computat Engn & Sci, Austin, TX 78712 USA; [Battisti, David S.] Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA
推荐引用方式 GB/T 7714	Lague, Marysa M.,Pietschnig, Marianne,Ragen, Sarah,et al. Terrestrial Evaporation and Global Climate: Lessons from Northland, a Planet with a Hemispheric Continent[J]. University of California, Berkeley,2021,34(6):2253-2276.
APA	Lague, Marysa M.,Pietschnig, Marianne,Ragen, Sarah,Smith, Timothy A.,&Battisti, David S..(2021).Terrestrial Evaporation and Global Climate: Lessons from Northland, a Planet with a Hemispheric Continent.JOURNAL OF CLIMATE,34(6),2253-2276.
MLA	Lague, Marysa M.,et al."Terrestrial Evaporation and Global Climate: Lessons from Northland, a Planet with a Hemispheric Continent".JOURNAL OF CLIMATE 34.6(2021):2253-2276.