Characteristics of atmospheric aerosol optical depth variation over China in recent 30 years

作     者：LUO Yunfeng LU Daren HE Qing LI Weiliang ZHOU Xiuji 

作者机构：Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Institute of AgrometeorologyChinese Academy of Agricultural SciencesBeijing 100081China Chinese Academy of Meteorological SciencesBeijing 100081China 

出 版 物：《Chinese Science Bulletin》 (CHINESE SCIENCE BULLETIN)

年 卷 期：2000年第45卷第14期

页      面：1328-1334页

核心收录：

学科分类：07[理学] 070602[理学-大气物理学与大气环境] 0706[理学-大气科学] 

主　　题：China atmospheric aerosol optical depth yearly variation. 

摘      要：This note retrieves the annual and monthly mean 0.75 urn aerosol optical depth (AOD) by using the daily direct solar radiation and sunshine duration data of 47 solar stations from 1961 to 1990. The characteristic of AOD variation over China in recent 30 years was analyzed. The results indicate that AOD increased obviously over China from 1961 to 1990. AOD increased most rapidly over the east part of Southwest China, the middle-and-lower reaches of the Yangtze River and the Tibetan Plateau. The increasing trend of AOD is also relatively distinct in North China, the Shandong Peninsula, east part of Qinghai Province, and coastal areas of Guangdong Province. However, in most parts of Northwest China and Northeast China, the increase of AOD is less significant, while in the west part of the Xinjiang Uygur Autonomous Region and some parts of Yunnan Province, AOD shows decreasing tendency. Generally, AOD reaches its maximum in spring and the minimum appears in summer. As to the linear trend, the maximum