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DOI	10.1175/JCLI-D-20-0120.1
	Variations in precipitation across the Southern Ocean
	Manton M.J.; Huang Y.; Siems S.T.
发表日期	2020
ISSN	0894-8755
起始页码	10653
结束页码	10670
卷号	33 期号:24
英文摘要	The Southern Ocean lies beneath a unique region of the global atmosphere with minimal effects of landmasses on the zonal flow. The absence of landmasses also means that in situ observations of precipitation are limited to a few ocean islands. Two reanalyses and two satellite-based gridded datasets are analyzed to estimate the character of the distribution of precipitation across the region. The latitudinal variation is computed across three longitudinal sectors, representing the Pacific, Atlantic, and Indian Oceans. The most recent ECMWF reanalysis (ERA5) is found to produce the most accurate estimate of the mean profile and seasonal cycle of precipitation. However, there is little consistency in the estimates of trends in monthly anomalies of precipitation. A more consistent description of precipitation trends is found by using linear regression of the precipitation anomaly with the local mean sea level pressure anomaly, the southern annular mode, and the Southern Oscillation index. In broad terms, precipitation is found to be decreasing at lower latitudes and increasing at higher latitudes, which is consistent with earlier climate model simulations on the impacts of anthropogenic climate change. Ó 2020 American Meteorological Society. For information regarding reuse of this content and general copyright information, consult the AMS Copyright Policy (www.ametsoc.org/PUBSReuseLicenses).
英文关键词	Atmospheric pressure; Climate change; Sea level; American meteorological societies; Anthropogenic climate changes; Climate model simulations; Copyright informations; Latitudinal variation; Precipitation anomalies; Southern Annular Mode; Southern oscillation index; Climate models; annual variation; climate change; climate modeling; precipitation (climatology); sea level pressure; Southern Oscillation; trend analysis; Atlantic Ocean; Indian Ocean; Pacific Ocean; Southern Ocean
语种	英语
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/171034
作者单位	Monash University, Melbourne, Australia; University of Melbourne, Melbourne, Australia; Australian Research Council Centre of Excellence for Climate Extremes, Melbourne, Australia
推荐引用方式 GB/T 7714	Manton M.J.,Huang Y.,Siems S.T.. Variations in precipitation across the Southern Ocean[J],2020,33(24).
APA	Manton M.J.,Huang Y.,&Siems S.T..(2020).Variations in precipitation across the Southern Ocean.Journal of Climate,33(24).
MLA	Manton M.J.,et al."Variations in precipitation across the Southern Ocean".Journal of Climate 33.24(2020).