1998年夏季地震、地温场演变与洪涝过程分析  

EARTHQUAKES AND SOIL TEMPERATURE EVOLUTION OVER CHINA IN SUMMER 1998 AND THEIR RELATION TO THE SEVERE FLOOD EVENTS

作　　者：郭维栋[1] 柳艳香[1] 汤懋苍[2] 

机构地区：[1]中国科学院东亚区域气候-环境重点实验室,中国科学院大气物理研究所东亚中心,北京100029 [2]中国科学院寒区旱区环境与工程研究所,兰州730000

出　　处：《地球物理学报》2004年第3期411-416,共6页Chinese Journal of Geophysics

基　　金：国家重点基础研究发展规划项目 (G1 9990 4 340 0 );中国科学院王宽诚博士后工作奖励基金资助

摘　　要：基于地震、土壤温度和降水资料 ,从地球系统各圈层相互作用的观点分析了 1 998年夏季长江和嫩江流域特大洪涝灾害的成因 ,探讨了地球固体圈层热力活动对大气圈异常事件的激发作用 .分析表明深层 (3.2m)土壤温度场与同期降水场的分布有很好的一致性 ,同时降水过程对下垫面脉冲性热扰动有较为敏感的响应 .We analyze the causes of severe floods in the Yangtze and Nenjiang River basins in summer of 1998 from the viewpoint of the interaction between components of the earth system based on earthquake, soil temperature, and precipitation data. The role of thermal activities of the solid earth in stimulating torrential rain is investigated in detail. The results show that the precipitation distribution agrees well with the soil temperature anomaly field and activities in the solid sphere of the earth system may excite and control the behaviors in the atmosphere. Mechanisms that how the soil temperature field exerts its influence on precipitation field are also discussed.

关 键 词：1998年 夏季 地震 地温场 洪涝过程分析 气候系统 地热涡 降水 

分 类 号：P426.616[天文地球—大气科学及气象学] P458.121