Advances in Atmospheric Sciences

, Volume 26, Issue 1, pp 57–66

A modeling study of the effects of direct radiative forcing due to carbonaceous aerosol on the climate in East Asia

  • Hua Zhang张 华
  • Zhili Wang王志立
  • Pinwen Guo郭品文
  • Zaizhi Wang王在志
Article

DOI: 10.1007/s00376-009-0057-5

Cite this article as:
Zhang, H., Wang, Z., Guo, P. et al. Adv. Atmos. Sci. (2009) 26: 57. doi:10.1007/s00376-009-0057-5

Abstract

The study investigated the effects of global direct radiative forcing due to carbonaceous aerosol on the climate in East Asia, using the CAM3 developed by NCAR. The results showed that carbonaceous aerosols cause negative forcing at the top of the atmosphere (TOA) and surface under clear sky conditions, but positive forcing at the TOA and weak negative forcing at the surface under all sky conditions. Hence, clouds could change the sign of the direct radiative forcing at the TOA, and weaken the forcing at the surface. Carbonaceous aerosols have distinct effects on the summer climate in East Asia. In southern China and India, it caused the surface temperature to increase, but the total cloud cover and precipitation to decrease. However, the opposite effects are caused for most of northern China and Bangladesh. Given the changes in temperature, vertical velocity, and surface streamflow caused by carbonaceous aerosol in this simulation, carbonaceous aerosol could also induce summer precipitation to decrease in southern China but increase in northern China.

Key words

carbonaceous aerosolradiative forcingCAM3climate effect in East Asia

Copyright information

© Chinese National Committee for International Association of Meteorology and Atmospheric Sciences, Institute of Atmospheric Physics, Science Press and Springer-Verlag GmbH 2009

Authors and Affiliations

  • Hua Zhang张 华
    • 1
  • Zhili Wang王志立
    • 1
    • 2
  • Pinwen Guo郭品文
    • 3
  • Zaizhi Wang王在志
    • 1
  1. 1.Laboratory for Climate Studies, National Climate CenterChina Meteorological AdministrationBeijingChina
  2. 2.Chinese Academy of Meteorological SciencesBeijingChina
  3. 3.The College of Atmospheric ScienceNanjing University of Information Science and TechnologyNanjingChina