首页|The possible pivotal role of the eastward dust transport from Central Asia in the global temperature decrease

The possible pivotal role of the eastward dust transport from Central Asia in the global temperature decrease

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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 area of the Northern Hemisphere, and results in 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 factor 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.

glacial-interglacial gyrationthe Milankovitch theorythe high-latitude area of the Northern Hemispheresolar radiationeastward dust transport from Central Asiapositive feedback mechanism

LIU Mingzhe、WEI Wenshou

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Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China

Graduate University of the Chinese Academy of Sciences, Beijing 100039, China

Chemical Laboratory for Atmosphere, China Meteorological Administration, Beijing 100081, China

Urumqi Desert Meteorology, China Meteorological Administration, Urumqi 830002, China

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国家自然科学基金中国气象局资助项目China Desert Meteorological Science Foundation

40475041CCSF2005-3-DH14SQJ2004002

2006

科学通报(英文版)
中国科学院

科学通报(英文版)

SCI
ISSN：1001-6538
年,卷(期)：2006.51(z1)
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