J4 ›› 2006, Vol. 24 ›› Issue (3): 14-18.

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The Influences of Dust Aerosols on Cloud Properties and Radiative  Forcing in a Sandstorm Weather Process

WANG Yu一jie1,2 , HUANG Jian一ping1, WANG Tian一he1   

  1. 1. College of Atmospheric Sciences, Ianzhou University, Ianzhou 730000, China;
    2.Professional Meteorological Observatory of Gansu Province, Lanzhou 730020, China
  • Received:2006-07-20 Revised:2006-08-11 Online:2006-09-30 Published:2006-09-30

一次沙尘暴过程中沙尘气溶胶对云物理量和辐射强迫的影响

王玉洁1,2黄建平1王天河1   

  1. 1.兰州大学大气科学学院,甘肃 兰州 730000 ; 2.甘肃省专业气象台,甘肃 兰州 730020
  • 作者简介:王玉洁(197卜),女,浙江杭州市人,在读硕士研究生,主要从事大气科学研究
  • 基金资助:

    国家自然科学基金(40575036)资助

Abstract:

This paper analyzed the influences of dust aerosols on cloud properties and TOA radiative forcing in the process of the duststorm for the period of March 26 to 28 ,2004 over Northwest China, using data collected by MDDIS( Moderate Resolution Imaging Spec-troradiometer) and CERES( Clouds and the Earth's Radiant Energy Budget Scanner) instruments on the Aqua satellite. These dust aero-sols decrease the ice diameter,optical depth and ice water path of clouds. Thus, the TOA  net radiative forcing of clouds is reduced.This means that the cooling effect of clouds is restrained.

摘要:

利用MODIS Aqua卫星反演和装载在Aqua上的CERES仪器观测资料,讨论了我国北方地区2004年3月26 } 28日沙尘暴过程中沙尘气溶胶对云物理特性和辐射强迫的影响。初步结果表明,沙尘气溶胶明显改变了云的物理特性,使云滴变小,含水量及光学厚度减少,减弱了云的净辐射强迫,云的冷却效应受到了抑制,相当于大气层顶沙尘气溶胶的增温作用。

关键词: 沙尘气溶胶, MODIS, Aqua卫星, CERES, 云物理特性和辐射强迫

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