| The possible pivotal role of the eastward dust transport from Central Asia in the global temperature decrease |
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| 作者姓名： | LIU Mingzhe WEI Wenshou |
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| 作者单位： | [1]Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China [2]Graduate University of the Chinese Academy of Sciences, Beijing 100039, China [3]Chemical Laboratory for Atmosphere, China Meteorological Administration, Beijing 100081, China [4]Urumqi Desert Meteorology, China Meteorological Administration, Urumqi 830002, China |
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| 基金项目： | Acknowledgements This work was supported by the National Natural Science Foundation of China （Grant No. 40475041）, Special Subject of Climate Change of China Meteorological Administration （Grant No. CCSF2005-3- DH14）, and China Desert Meteorological Science Foundation （Grant No. SQJ2004002）. |
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| 摘 要： |
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| 关 键 词： | 冰川 间冰期 高纬度地区 北半球 太阳辐射 正反馈机制 |
| 收稿时间： | 2005-07-20 |
| 修稿时间： | 2006-01-16 |
The possible pivotal role of the eastward dust transport from Central Asia in the global temperature decrease |
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| LIU Mingzhe WEI Wenshou.The possible pivotal role of the eastward dust transport from Central Asia in the global temperature decrease[J].Chinese Science Bulletin,2006,51(A01):1-7. |
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| Authors: | LIU;Mingzhe;WEI;Wenshou |
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| Abstract: | It is generally considered that the occurrence of glacial-interglacial gyrations can be explained with the Milankovitch theory. However, the solutions of some problems in the theory are currently not derived yet. After researching the eastward dust transport from Central Asia, we have found that there is a positive feedback mechanism between the eastward dust transport and the global temperature decrease. This magnifies the effect of solar radiation change in the high-latitude Hemisphere, and results in area of the Northern the occurrence of the global glacial epoch. The positive feedback mechanism starts with the reduction of solar radiation in the high-latitude area of the Northern Hemisphere. Subsequently, the global temperature decreases and global glacial epoch occurs, in which the pivotal fac- tor is the eastward dust transport from Central Asia. With the theory of the positive feedback mechanism, some problems in the Milankovitch theory can be solved well. |
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