| Tele-seismic coseismic well temperature changes and their interpretation |
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| 作者姓名： | 石耀霖 曹建玲 马丽 尹宝军 |
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| 作者单位： | Graduate University of Chinese Academy of Sciences，Graduate University of Chinese Academy of Sciences，Institute of Earthquake Science China Earthquake Administration，Institute of Earthquake Science，China Earthquake Administration，Beijing 100049 China，Beijing 100049 China，Beijing 100036 China，Beijing 100036 China，Institute of Geophysics China Earthquake Administration，Beijing 100081 China，Earthquake Administration of Tangshan City，Tangshan 063000 China |
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| 基金项目： | National Natural Science Foundation of China (40574021). |
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| 摘 要： | Coseismic water level oscillation and correlated deep water temperature changes have been observed in a water well at Tangshan City by high sensitivity measurement. Amount of water temperature changes depend on ampli-tude of water level oscillation. Coseismic water temperatures always decrease as water level oscillates, drop of temperature ranges from 0.001 °C to 0.01 °C corresponding to amplitude of water level oscillation from several centimeters to about one meter. Temperatures usually recover one to several hours after the oscillation. We suggest that the temperature drop is produced by dispersive transfer of heat as the water oscillates, and follow-up thermal conduction makes temperature recovery. Our finite element calculations support quantitatively the idea. High ac-curacy measurements of water temperature at different depths in the future may test our interpretation.
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| 关 键 词： | 地震效应 等震波圈 井水温度 水位 物理解释 |
| 文章编号： | 1000-9116（2007）03-0280-10 |
| 收稿时间： | 2006-10-12 |
| 修稿时间： | 2007-03-16 |
Tele-seismic coseismic well temperature changes and their interpretation |
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| Shi Yao-lin , Cao Jian-ling , Ma Li and Yin Bao-jun.Tele-seismic coseismic well temperature changes and their interpretation[J].Acta Seismologica Sinica(English Edition),2007,20(3):280-289. |
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| Authors: | Shi Yao-lin Cao Jian-ling Ma Li and Yin Bao-jun |
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| Affiliation: | (1) Graduate University of Chinese Academy of Sciences, Beijing, 100049, China;(2) Institute of Earthquake Science, China Earthquake Administration, Beijing, 100036, China;(3) Institute of Geophysics, China Earthquake Administration, Beijing, 100081, China;(4) Earthquake Administration of Tangshan City, Tangshan, 063000, China |
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| Abstract: | Coseismic water level oscillation and correlated deep water temperature changes have been observed in a water well at Tangshan
City by high sensitivity measurement. Amount of water temperature changes depend on amplitude of water level oscillation.
Coseismic water temperatures always decrease as water level oscillates, drop of temperature ranges from 0.001 °C to 0.01 °C
corresponding to amplitude of water level oscillation from several centimeters to about one meter. Temperatures usually recover
one to several hours after the oscillation. We suggest that the temperature drop is produced by dispersive transfer of heat
as the water oscillates, and follow-up thermal conduction makes temperature recovery. Our finite element calculations support
quantitatively the idea. High accuracy measurements of water temperature at different depths in the future may test our interpretation.
Foundation item: National Natural Science Foundation of China (40574021). |
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| Keywords: | earthquake water level water temperature coseismic effect |
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