Black Carbon and West African Monsoon precipitation: Observations and simulations

J. Huang, A. Adams, C. Wang, C. Zhang

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

We have recently investigated large-scale co-variability between aerosol and precipitation and other meteorological variables in the West African Monsoon (WAM) region using long term satellite observations and reanalysis data. In this study we compared the observational results to a global model simulation including only direct radiative forcing of black carbon (BC). From both observations and model simulations we found that in boreal cold seasons anomalously high African aerosols are associated with significant reductions in cloud amount, cloud top height, and surface precipitation. These results suggest that the observed precipitation reduction in the WAM region is caused by radiative effect of BC. The result also suggests that the BC effect on precipitation is nonlinear.

Original languageEnglish (US)
Pages (from-to)4171-4181
Number of pages11
JournalAnnales Geophysicae
Volume27
Issue number11
DOIs
StatePublished - 2009

Keywords

  • Atmospheric composition and structure (Aerosols and particles)
  • Meteorology and atmospheric dynamics (Precipitation; Radiative processes)

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Geology
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science

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