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高原气象  2015 

南极东部高原夏季大气垂直结构分析

DOI: 10.7522/j.issn.1000-0534.2014.00032, PP. 299-306

Keywords: 东南极高原站,GPS探空,对流层顶,边界层高度

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Abstract:

利用中国第28次南极内陆考察队在东南极冰盖最高点DomeA获取的2012年1月南极夏季20次珍贵的GPS探空资料,对该地区的大气垂直结构和边界层特征进行了研究。结果表明:南极高原对流层中部平均垂直温度递减率为5.2℃·km-1,低于全球平均对流层中部的递减率(6.5℃·km-1),递减率(LRT)对流层顶平均高度和平均温度分别为4.6km和-51.3℃。水汽主要集中在距地2km以下的对流层中。边界层中存在多层逆温结构,强逆温层出现在500m以下高度,边界层平均高度为890m,并具有早晩低、午间高的日变化特征。

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