Satellite based analysis of aerosol effect on cloud droplet size in eastern China

Author

Wang, Fu ; Guo, Jianping ; Wu, Yerong ; Li, Xiaowen

Author_Institution

Univ. of Electron. Sci. & Technol. of China, Chengdu, China

fYear

2012

fDate

22-27 July 2012

Firstpage

1932

Lastpage

1935

Abstract

As concluded by IPCC Fourth Assessment Report, the aerosol first indirect effect, so-called Twomey effect could be climatically important. Seven consecutive summers (2002-2008) of daily observations from MODIS instrument are used to reveal aerosol-cloud relationship over a region of continent, the eastern China(30°N-41°N; 114°E-123°E). The results indicates that AOD effect DER more significantly when the droplet is smaller. Small droplet observations reveal an `Anti-Twomey´ effect while large droplet observations show the contrary Twomey effect. The regions study on scale 1° × 1° also contains results lead to both the Twomey effect and `Anti-twomey´ effect. This phenomenon might be caused by the distribution of aerosol chemical composition and particles size.

Keywords

aerosols; clouds; particle size; remote sensing; AD 2002 to 2008; IPCC Fourth Assessment Report; MODIS instrument observation; Twomey effect; aerosol chemical composition; aerosol effect; cloud droplet size; eastern China; particles size; satellite based analysis; Aerosols; Clouds; Density estimation robust algorithm; MODIS; Optical sensors; Physics; Satellites; AOD; DER; MODIS; aerosol indirect effect;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2012 IEEE International

Conference_Location

Munich

ISSN

2153-6996

Print_ISBN

978-1-4673-1160-1

Electronic_ISBN

2153-6996

Type

conf

DOI

10.1109/IGARSS.2012.6351125

Filename

6351125