| Heat and mass flux estimation of modem seafloor hydrothermal activity |
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| 作者姓名： | ZHAI Shikui WANG Xingtao YU Zenghui |
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| 作者单位： | [1]Marine Geoscience Institute, Ocean University of China, Qingdao 266003, China [2]Bureau of Ocean and Fishing in Weihai, Weihai 264200, China |
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| 基金项目： | This study was supported by the Major State Basic Research Program of China under contract No. G2000078503 and the National Natural Science Foundation of China under contract No. 40246024. |
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| 摘 要： |
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| 关 键 词： | 海底资源 热液 热量 海洋环流 海洋气象 |
| 收稿时间： | 2006-04-05 |
| 修稿时间： | 2006-07-26 |
Heat and mass flux estimation of modem seafloor hydrothermal activity |
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| ZHAI Shikui WANG Xingtao YU Zenghui.Heat and mass flux estimation of modem seafloor hydrothermal activity[J].Acta Oceanologica Sinica,2006,25(6):43-51. |
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| Authors: | ZHAI Shikui WANG Xingtao YU Zenghui |
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| Abstract: | Research on heat and mass flux yielded by modern seafloor hydrothermal activity is very important, because it is involved not only in the base of ocean environment research, but also in the historical evolution of seawater properties. Currently, estimating heat flux is based on the observation data of hydrothermal smokers, low-temperature diffusive flow and mid-ocean ridge mainly. But there are some faults, for example, there is lack of a concurrent conductive item in estimating the heat flux by smokers and the error between the half-space cooling model and the observation data is too large. So, three kinds of methods are applied to re-estimating the heat flux of hydrothermal activity resepectively, corresponding estimation is 97. 359 GW by hydrothermal smoker and diffusive flow, 84.895 GW by hydrothermal plume, and 4. 11 TW by exponential attenuation method put forward by this paper. Research on mass flux estimation is relatively rare, the main reason for this is insufficient field observation data. Mass fluxes of different elements are calculated using hydrothermal vent fluid data from the TAG hydrothermal area on the Mid-Atlantic Ridge for the first time. Difference of estimations by different methods reflects the researching extent of hydrothermal activity, and systematically in - situ observation will help to estimate the contribution of hydrothermal activity to ocean chemical environment, ocean circulation and global climate precisely. |
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| Keywords: | hydrothermal activity heat flux mass flux exponential attenuation method |
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