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Studying Aerosol-Cloud-Climate Interactions over East Asia Using WRF/Chem

  • Yang ZhangEmail author
  • Xin Zhang
  • Changjie Cai
  • Kai Wang
  • Litao Wang
Conference paper
Part of the Springer Proceedings in Complexity book series (SPCOM)

Abstract

East Asia provides an ideal testbed to study aerosol feedbacks into climate via direct and indirect effects because of high anthropogenic emissions and unique climatology. In this work, an online coupled meteorology-chemistry model, WRF/Chem, is applied to simulate air quality and climate interactions for multiple months in 2001, 2005, and 2008 to characterize long-term seasonal variations of pollutant concentrations and quantify the contributions of anthropogenic aerosols to aerosol direct and indirect effects. The results show a reasonably good performance for most meteorological variables and chemical species concentrations. Large biases in some variables may be caused by large uncertainties in emissions. Anthropogenic aerosols in East Asia can reduce the surface net solar radiation by up to 6 % and enhance cloud condensation nuclei and cloud droplet number concentrations by a factor of up to 3 on domain-average, with much greater impacts over urban areas. These results suggest that aerosol feedbacks are potentially important over polluted areas and should be taken into account in the development of emission control and climate mitigation policies for areas where the aerosol feedback signals are strong.

Keywords

Aerosol Optical Depth Anthropogenic Aerosol Cloud Condensation Nucleus Ozone Monitoring Instrument Planetary Boundary Layer Height 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

This research was supported by the Office of Science, DOE climate modeling programs (DE-SC0006695) at NCSU and China’s National Basic Research Program (2010CB951803). Thanks are due to David Streets, Argonne National Laboratory, and Qiang Zhang, Tsinghua University, for providing 2005 and 2008 emissions; Xuyan Liu, Tsinghua University, for performing 2008 simulation; Fengkui Duan and Kebin He, Tsinghua University, for proving observations at the Tsinghua site.

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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Yang Zhang
    • 1
    Email author
  • Xin Zhang
    • 1
  • Changjie Cai
    • 1
  • Kai Wang
    • 1
  • Litao Wang
    • 2
  1. 1.Department of Marine, Earth, and Atmospheric SciencesNorth Carolina State UniversityRaleighUSA
  2. 2.Department of Environmental EngineeringHebei University of EngineeringHandanChina

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