摘要
利用我国各气象站1954—1985年的地温资料,分析发现3.2m深度的地温有“突然升高”现象,其中大部分不能用地表层的变化来解释。当“地热异常型”的地温突升呈大范围(大于10~3km)群发性时,会使该区域当年降水量明显增多;当“地热异常”呈“孤点”爆发时,不会使该地降水机率增加,但当降水发生时可以增加降水量。
After analysing the Chinese soil temperature data as deep to 3.2 m depth in 1954-1985, it is found that the underground temperature has a abrupt arising in some times and in some places, which can't be explained by the rising of surface ground temperature. The duration of abrupt warming is about 0.5-2 years. When the scale of 'abrupt warming region' is larger than 103 km, the yearly precipitation will be abundant in the warming region.
出处
《高原气象》
CSCD
北大核心
1990年第4期364-370,共7页
Plateau Meteorology
基金
大气科学和地球流体力学数值模拟开放研究实验室(LASG)资助课题
关键词
地温
突变
气候变化
预报
Soil temperature
Abrupt change
Climate prediction
