气候变化领域集成服务门户(CCPortal): Terrestrial sources of summer arctic moisture and the implication for arctic temperature patterns

CCPortal

DOI	10.1038/s41612-021-00181-y
	Terrestrial sources of summer arctic moisture and the implication for arctic temperature patterns
	Harrington T.S.; Zhu J.; Skinner C.B.
发表日期	2021
ISSN	23973722
卷号	4 期号:1
英文摘要	Sea ice melt and ocean heat accumulation in the Arctic are strongly influenced by the presence of atmospheric water vapor during summer. While the relationships between water vapor concentration, radiation, and surface energy fluxes in the Arctic are well understood, the sources of summer Arctic water vapor are not, inhibiting understanding and prediction of Arctic climate. Here we use the Community Earth System Model version 1.3 with online numerical water tracers to determine the geographic sources of summer Arctic water vapor. We find that on average the land surface contributes 56% of total summer Arctic vapor with 47% of that vapor coming from central and eastern Eurasia. Given the proximity to Siberia, near-surface temperatures in the Arctic between 90°E-150°E, including the Laptev Sea, are strongly influenced by concentrations of land surface-based vapor. Years with anomalously large concentrations of land surface-based vapor in the Arctic, and especially in the Laptev Sea region, often exhibit anomalous near-surface poleward flow from the high latitudes of Siberia, with links to internal variability such as the Arctic Dipole anomaly. © 2021, The Author(s).
语种	英语
来源期刊	npj Climate and Atmospheric Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/177988
作者单位	Department of Environmental, Earth and Atmospheric Sciences, University of Massachusetts Lowell, Lowell, MA, United States; Climate and Global Dynamics Laboratory, NCAR, Boulder, CO, United States
推荐引用方式 GB/T 7714	Harrington T.S.,Zhu J.,Skinner C.B.. Terrestrial sources of summer arctic moisture and the implication for arctic temperature patterns[J],2021,4(1).
APA	Harrington T.S.,Zhu J.,&Skinner C.B..(2021).Terrestrial sources of summer arctic moisture and the implication for arctic temperature patterns.npj Climate and Atmospheric Science,4(1).
MLA	Harrington T.S.,et al."Terrestrial sources of summer arctic moisture and the implication for arctic temperature patterns".npj Climate and Atmospheric Science 4.1(2021).