Satellite-based estimates of reduced CO and CO₂ emissions due to traffic restrictions during the 2008 Beijing Olympics

AMS Citation:
Worden, H. M., and Coauthors, 2012: Satellite-based estimates of reduced CO and CO₂ emissions due to traffic restrictions during the 2008 Beijing Olympics. Geophysical Research Letters, 39, L14802, doi:10.1029/2012GL052395.
Date:2012-07-20
Resource Type:article
Title:Satellite-based estimates of reduced CO and CO₂ emissions due to traffic restrictions during the 2008 Beijing Olympics
Abstract: During the 2008 Olympics, the Chinese government made a significant effort to improve air quality in Beijing, including restrictions on traffic. Here we estimate the reductions in carbon monoxide (CO) and carbon dioxide (CO₂) emissions resulting from the control measures on Beijing transportation. Using MOPITT (Measurements Of Pollution In The Troposphere) multispectral satellite observations of near‐surface CO along with WRF‐Chem (Weather Research and Forecasting model with Chemistry) simulations for Beijing during August, 2007 and 2008, we estimate changes in CO due to meteorology and transportation sector emissions. Applying a reported CO/CO₂ emission ratio for fossil fuels, we find the corresponding reduction in CO₂, 60 ± 36 Gg[CO₂]/day. As compared to emission scenarios being considered for the IPCC AR5 (Intergovernmental Panel on Climate Change, 5th Assessment Report), this result suggests that urban traffic controls on the Beijing Olympics scale could play a significant role in meeting target reductions for global CO₂ emissions.
Peer Review:Refereed
Copyright Information:Copyright 2012 American Geophysical Union.
OpenSky citable URL: ark:/85065/d7kh0pnc
Publisher's Version: 10.1029/2012GL052395
Author(s):
  • Helen Worden - NCAR/UCAR
  • Yafang Cheng
  • Gabriele Pfister - NCAR/UCAR
  • Michael Carmichael
  • Qiang Zhang - NCAR/UCAR
  • David Streets
  • Merritt Deeter - NCAR/UCAR
  • David Edwards - NCAR/UCAR
  • John Gille - NCAR/UCAR
  • John Worden - NCAR/UCAR
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