南极长城站阵性降水的初步分析  

Analyses of Shower Weather at Great Wall Station, Antarctica

作　　者：汪孝清 杨清华[2] 

机构地区：[1]湖北省潜江市气象局,湖北潜江433100 [2]国家海洋环境预报中心,北京100081

出　　处：《海洋预报》2008年第4期25-30,共6页Marine Forecasts

基　　金：中国极地科学战略研究基金项目(20070227);国家海洋局极地科学重点实验室开放研究基金项目(KP2005005)资助。

摘　　要：文章统计分析了南极长城站2000年以来阵性降水的种类、降自云层及出现频率,发现长城站共有霰、阵雨、阵雪3种阵性降水。同时分别从观测学和天气学的角度,对2006年出现的5次阵雪天气过程进行了剖析,揭示了南极阵性降水的一些特点,认为当长城站地处位置偏南、移速缓慢的气旋前部,或威德尔气旋后部,同时天空有积云出现时,都应考虑阵性降水出现的情况。所作分析对长城站阵性降水的观测和预报有一定的参考意义。The statistical analysis of the shower at Great Wall station is discussed using the surface meteorological data from 2000 to 2006. It is found that there are 3 kinds of shower in all at this region. Five shower cases in the year 2006 were studied from the view of observation and synoptic analysis, and the features of the shower is revealed. It is also concluded that the occurrence of shower should be taken into account when Great Wall Station is in front of quasi-stationary cyclone whose location is in the south, or behind the Weddle Sea Cyclone. The analysis is helpful to the observation and forecast of shower weather at Great Wall Station.

关 键 词：阵性降水 积云 南极 长城站 

分 类 号：P731[天文地球—海洋科学]