Evaluation of dust activity and clim

Evaluation of dust activity and climate effects in North China

Abstract： TOMS/Al data with nearly 20 years are utilized in the paper to evaluate dust activities in North China.Combined with simultaneous NCEP reanalysis climate data, climate effects on dust activities are assessed. Theresults showed that the whole North China suffers impact by dust aerosols, with three centers standing out inTOMS/Al spring average map that are western three basins, which are characterized by lower annual precipitationand elevation. Gobi deserts in Mongolia Plateau do not attain higher TOMS/Al value due to cloud contamination andrelative higher elevation. Spring is the season with the highest TOMS dust aerosol index; within the western threebasins, high dust aerosol index appears in both spring and summer, especially in Tarim Basin. Wind speed in springand precipitation in previous rainy season play important roles in controlling dust activities, higher wind speed andless precipitation than the normal are in favor of dust activities in spring. Temperature in spring and previous winteralso affect dust activity to a certain extent, but with contrary spatial distribution. Temperature in winter exert effectprincipally in west part, contrarily, temperature effect in spring is mainly shown in east part. Both of them havenegative correlation with dust activity. 作 者： XIA Xiang-ao    LIANG Feng    WANG Ming-xing   作者单位： Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China  期 刊： 环境科学学报(英文版)  ISTICSCI   Journal： JOURNAL OF ENVIRONMENTAL SCIENCES  年，卷(期)： 2004, 16(2)  分类号： X16  Keywords： TOMS/Al    NCEP climate data    dust activity    correlation analysis   

【Evaluation of dust activity and clim】相关文章：

Physicochemistry and Mineralogy of Storm Dust and Dust Sediment in Northern China10-07

Quantitative Structure-activity Relationship Study on the Antioxidant Activity of Carotenoids11-03

an activity英语作文09-04

Evaluation for Earthquake Liquefaction of Loess Sites07-07

Starting Salary Offers to New College Grads Continue to Clim01-01

activity是什么意思01-25

Android Activity 详述 -电脑资料01-01

My Favorite Activity 英语作文09-09

EVALUATION OF ECOLOGICAL SERVICES OF JILIN PROVINCE, NORTHEAST CHINA08-21