Examining the aerosol indirect effect over China using an SO2 emission inventory

Kazuaki Kawamoto, Tadahiro Hayasaka, Teruyuki Nakajima, David Streets, Jung Hun Woo

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

The relationship between SO2 emissions and the effective particle radius of low-level water clouds (re) over China was investigated to determine anthropogenic effects on clouds. Sulfur dioxide emission values were obtained from a statistical inventory, and re origins were retrieved by satellite remote sensing on a 0.5° grid. Comparisons between annual mean SO2 emissions and re showed generally decreasing re values, explained by the Twomey effect. The existence of the Twomey effect is supported by comparisons with simulated aerosol optical depths. Results further suggest that clouds over land show sensitivity to the Twomey effect as well as clouds over the ocean.

Original languageEnglish
Pages (from-to)353-363
Number of pages11
JournalAtmospheric Research
Volume72
Issue number1-4
DOIs
Publication statusPublished - 2004 Nov
Externally publishedYes

Keywords

  • Aerosol indirect effect
  • Cloud
  • Radiation
  • SO emission
  • Satellite remote sensing

ASJC Scopus subject areas

  • Atmospheric Science

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