地热异常区与降水异常区及地形变速率的关系  

THE RELATIONSHIP AMONG SOIL TEMPERATURE ANOMALY AND EARTH DEFORQMATION AND PRECIPITATION ANOMALY

作　　者：马柱国[1] 

机构地区：[1]中国科学院兰州高原大气物理研究所

出　　处：《高原气象》1996年第3期311-317,共7页Plateau Meteorology

摘　　要：利用我国１９５４—１９９３年的季距平３．２ｍ地温资料（Ｔ′３．２），对“地热涡”的空间分布规律进行了统计分析。结果表明：一般其高频区与地形变速率绝对值的大值区对应，与降水异常的高频区基本对应，但中心位置大多偏离２００ｋｍ左右；其低频区与地形变速率弱的地区对应，与降水异常的低频区亦基本对应。另外，地热正异常和负异常在同一地区的出现概率并不相同。By using seasonal departure data of soil temperature at 3 2m depth ( T ′ 3 2 ) from 1954 to 1993 in China,the spatial characteristics of terrestrial heat vortex have been analysed.The results indicate that the high frequency areas of soil temperature anomaly are similar to the areas of larger absolute value of earth deformation rate,and are similar to the high frequency areas of precipitation anomaly,but there is about 200km deviation between their centrical locations and that the lower frequency areas of soil temperature anomaly are alike to the areas of small absolute value of earth deformation rate, and are similar to the lower frequency areas of precipitation anomaly.The results also indicate that there is a difference between prohabilities of negative and positive anomaly created at the same place.The asymmetry geographic distribution of soil temperature anomaly is similar to the asymmetry geographic distribution of precipitation anomaly in China.

关 键 词：地热涡 地形变速率 降水异常 降水 

分 类 号：P426.615[天文地球—大气科学及气象学]