首页|Characteristics of distribution and seasonal variation of aerosol optical depth in eastern China with MODIS products

Characteristics of distribution and seasonal variation of aerosol optical depth in eastern China with MODIS products

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The accuracy of MODIS aerosol products from the NASA Terra Satellite is validated in comparison with the results of sun-photometer observations in Beijing and Hong Kong. By analyzing the MODIS aerosol products within the period of August 2000 to April 2003, it is believed that human activities are the main source of aerosols in the eastern part of China. This is based on the facts that all areas with relatively high values are consistent with regions of dense population and fast economic development, such as the North China Plain, the Sichuan Basin and the Pearl River Delta. It is also supported by the distribution of ?ngstr?m exponents showing that most aerosols in the eastern part of China are closely related to human activities, excepting the strong sandstorm episodes occurring in spring, fall and winter. In contrast to developed countries, the ?ngstr?m exponent of urban area in China is lower than its surroundings, indicating that the contribution of local floating dust and soot attributed to human activities is significant. Results presented in this paper provide important data for further research on climatic change and environmental study.

MODISaerosol optical depth (AOD)eastern China

LI Chengcai、MAO Jietai、LAU Kai-Hon Alexis、CHEN Jay-Chung、YUAN Zibing、LIU Xiaoyang、Zhu Aihua、Liu Guiqing

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Department of Atmospheric Science, School of Physics, Peking University, Beijing 100871, China:Center for Coastal and Atmospheric Research, The Hong Kong University of Science and Technology (HKUST), Hong Kong, China

Department of Atmospheric Science, School of Physics, Peking University, Beijing 100871, China

Center for Coastal and Atmospheric Research, The Hong Kong University of Science and Technology (HKUST), Hong Kong, China

Atmospheric, Marine and Coastal Environment (AMCE) Program, HKUST, Hong Kong, China

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国家自然科学基金

1999045700

2003

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)：2003.48(22)
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