| 强地震前水汽中长期异常变化特征研究 |
| |
| 引用本文： | 陈梅花,邓志辉,马晓静,陶京玲,王煜.强地震前水汽中长期异常变化特征研究[J].地震地质,2011,33(3). |
| |
| 作者姓名： | 陈梅花 邓志辉 马晓静 陶京玲 王煜 |
| |
| 作者单位： | 1. 中国地震局地质研究所,北京,100029
2. 中国地震局地震预测研究所,北京,100036 |
| |
| 基金项目： | 中国地震局地质研究所基本科研业务专项(IGCEA2060302); 国家自然科学基金(40841016、40372131、40702056)共同资助 |
| |
| 摘 要： | 以川西及其邻近地区为例,研究了在强震孕育中长期阶段水汽含量的时空动态特征。通过对2008年汶川8.0级地震、1976年松潘强震群和2010年玉树7.1级地震的分析,发现在川西及其邻近地区的强地震孕育过程中,水汽含量异常频度会出现先下降,然后快速上升的现象。下降开始时间较早,出现在震前10a以上,持续9a以上,属中长期异常信息;而快速上升则发生在震前4a内,属中短期异常表现。地震前水汽含量异常的原因可能是由于岩层中裂隙、孔隙的开合、地下流体的运动和地热能的变化,影响地面温度和潜热交换的分布所致。
|
| 关 键 词： | 地震异常 水汽含量 汶川地震 松潘震群 玉树地震 |
LONG-AND MID-TERM ANOMALOUS VARIATIONS OF ATMOSPHERIC WATER VAPOR BEFORE STRONG EARTHQUAKE |
| |
| CHEN Mei-hua,DENG Zhi-hui,MA Xiao-jing,TAO Jing-ling,WANG Yu.LONG-AND MID-TERM ANOMALOUS VARIATIONS OF ATMOSPHERIC WATER VAPOR BEFORE STRONG EARTHQUAKE[J].Seismology and Geology,2011,33(3). |
| |
| Authors: | CHEN Mei-hua DENG Zhi-hui MA Xiao-jing TAO Jing-ling WANG Yu |
| |
| Institution: | CHEN Mei-hua1) DENG Zhi-hui1) MA Xiao-jing1) TAO Jing-ling1) WANG Yu2) 1)Institute of Geology,China Earthquake Administration,Beijing 100029,China 2)Institute of Earthquake Science,Beijing,100036,China |
| |
| Abstract: | The spatial-temporal variations of atmospheric water vapor in western Sichuan Province and its vicinity during the mid-and long-term earthquake preparation process are studied.The MS 8.0 Wenchuan earthquake in 2008,the Songpan-Pingwu earthquake sequence in 1976 and the Yushu MS 7.1 earthquake in 2010 are selected as cases of the study regions.The result shows the frequency of atmospheric water vapor anomalies will decrease at first,then increase quickly during the mid-and long-term process of strong earthqu... |
| |
| Keywords: | earthquake anomaly atmospheric water vapor Wenchuan earthquake Songpan-Pingwu earthquake sequence Yushu earthquake |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
