气候变化领域集成服务门户(CCPortal): Characterization of the summer surface mesoscale dynamics at Dome F, Antarctica

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DOI	10.1016/j.atmosres.2021.105699
	Characterization of the summer surface mesoscale dynamics at Dome F, Antarctica
	González S.; Vasallo F.; Sanz P.; Quesada A.; Justel A.
发表日期	2021
ISSN	0169-8095
卷号	259
英文摘要	This article characterizes the mesoscale surface air temperature (SAT) gradients around the Dome F on the Antarctic Plateau combining ERA5 reanalysis outputs and in-situ weather observations. For this we took advantage of a mobile automatic weather station (M-AWS) that allowed us to record meteorological observations in interesting areas not covered by other AWS. We found that night-time SAT gradients are very variable from night to night. ERA5 does not adequately represent thermal gradients and their daily changes and tends to underestimate them. In particular, it fails to reproduce the cold pool observed by M-AWS over the depressed areas of the terrain. The performance of ERA5 over the plateau is better when observed SAT gradients are weak. Besides, we observed surface meso-β eddies with warm cores and horizontal gradients of more than 5 °C 100 km−1 simulated by ERA5 that have implications for site selection to establish new telescopes for astronomical observations. This study helps to interpret the daily performance of SAT values provided by reanalyisis on the Antarctic Plateau and complements climatological evaluations of SAT in the region. Finally, this study raises the necessity to increase in-situ weather observations, not only on the ridges of the Antarctic plateau where the majority are located, but also in the areas of depression to have a better picture of the weather and climate of the plateau. © 2021 Elsevier B.V.
英文关键词	Antarctic Plateau; Cold pools; Mesoscale dynamics; Surface air temperature; Weather observations
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/236701
作者单位	Antarctic Group, Spanish Meteorological Agency (AEMET), Spain; Centro de Computación Científica, Universidad Autónoma de Madrid, Madrid, Spain; Department of Biology, Universidad Autónoma de Madrid, Spain; Department of Mathematics, Universidad Autónoma de Madrid, Spain
推荐引用方式 GB/T 7714	González S.,Vasallo F.,Sanz P.,et al. Characterization of the summer surface mesoscale dynamics at Dome F, Antarctica[J],2021,259.
APA	González S.,Vasallo F.,Sanz P.,Quesada A.,&Justel A..(2021).Characterization of the summer surface mesoscale dynamics at Dome F, Antarctica.Atmospheric Research,259.
MLA	González S.,et al."Characterization of the summer surface mesoscale dynamics at Dome F, Antarctica".Atmospheric Research 259(2021).