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DOI	10.1016/j.atmosres.2021.105811
	Potential mechanisms governing the variation in rain/snow frequency over the northern Antarctic Peninsula during austral summer
	Wang S.; Liu G.; Ding M.; Chen W.; Zhang W.; Lv J.
发表日期	2021
ISSN	0169-8095
卷号	263
英文摘要	Precipitation with different phases can exert different influences on the Antarctic mass balance. Using the observational rain and snow days from the Great Wall Station, ERA-interim reanalysis, and other data, this study investigates the mechanisms governing the year-to-year variability of precipitation phase (i.e., rainfall and snowfall) over the northern Antarctic Peninsula (AP) during austral summer (December, January, and February; abbreviated as DJF) for the period 1985–2016. The results reveal that the rainfall and snowfall anomalies are controlled mainly by the change in the proportion of precipitation occurring as rain and snow, and the latter is strongly influenced by the change in air temperature. Through regulating the air temperature, different atmospheric circulation anomalies affect the variability of the rainfall and snowfall over the northern AP during summer. Specifically, a circulation pattern with an anomalous anticyclone over the Malvinas Islands and an anomalous cyclone over the Amundsen–Bellingshausen Seas (ABS) can increase summer rainfall, whereas an anomalous cyclone over the Weddell Sea facilitates more snowfall. The summertime atmospheric circulation anomalies, which modulate the variability of rainfall over the northern AP, are primarily caused by an atmospheric teleconnection pattern persisting from austral spring (September–November, SON) to summer. Such a persistent teleconnection pattern can be attributed to the long-time maintenance of sea surface temperature anomalies due to air-sea interaction processes. © 2021
英文关键词	Air–sea interaction; Antarctic Peninsula; Atmospheric circulation; Precipitation phase
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/236604
作者单位	State Key Laboratory of Severe Weather and Institute of Tibetan Plateau & Polar Meteorology, Chinese Academy of Meteorological Sciences, Beijing, 100081, China; Center for Monsoon System Research, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100190, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
推荐引用方式 GB/T 7714	Wang S.,Liu G.,Ding M.,et al. Potential mechanisms governing the variation in rain/snow frequency over the northern Antarctic Peninsula during austral summer[J],2021,263.
APA	Wang S.,Liu G.,Ding M.,Chen W.,Zhang W.,&Lv J..(2021).Potential mechanisms governing the variation in rain/snow frequency over the northern Antarctic Peninsula during austral summer.Atmospheric Research,263.
MLA	Wang S.,et al."Potential mechanisms governing the variation in rain/snow frequency over the northern Antarctic Peninsula during austral summer".Atmospheric Research 263(2021).