浅析1998—2013年ENSO对西藏西南部冬季降水的影响

Analysis on the Influence of ENSO on Winter Precipitation in Southwestern Tibet from 1998 to 2013

通过对TRMM和ERA-Interim再分析资料进行合成分析,比较1998—2013年不同ENSO位相时西藏西南部地区降水和大气环流异常的特征。当为厄尔尼诺年期间,藏西南部区的降雪量偏多,在拉尼娜年期间则偏少。

Through synthetic analysis of TRMM and ERA-Interim reanalysis data, the characteristics of precipitation and atmospheric circulation anomalies in southwestern Tibet from 1998 to 2013 in different ENSO phases were compared.When it was an El Nino year, the snowfall in southwestern Tibet was more than that during the La Nina year.