HR: 1340h
AN: GC23A-1298    [Abstracts]
TI: Intercomparison among tropospheric ozone and nitrogen dioxide data obtained by satellite- and ground-based measurements
AU: * Noguchi, K
EM: nogu@ics.nara-wu.ac.jp
AF: Nara Women's University, Kita-uoya Nishi-machi, Nara, 630-8506 Japan
AU: Urita, N
EM: naomi@ics.nara-wu.ac.jp
AF: Nara Women's University, Kita-uoya Nishi-machi, Nara, 630-8506 Japan
AU: Ohta, E
EM: emi@ics.nara-wu.ac.jp
AF: Nara Women's University, Kita-uoya Nishi-machi, Nara, 630-8506 Japan
AU: Hayashida, S
EM: sachiko@ics.nara-wu.ac.jp
AF: Nara Women's University, Kita-uoya Nishi-machi, Nara, 630-8506 Japan
AU: Richter, A
EM: richter@iup.physik.uni-bremen.de
AF: University of Bremen, Postfach 330440, Bremen, 28334 Germany
AU: Burrows, J P
EM: burrows@iup.physik.uni-bremen.de
AF: University of Bremen, Postfach 330440, Bremen, 28334 Germany
AU: Liu, X
EM: xliu@cfa.harvard.edu
AF: Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, MS-50, Cambridge, MA 02138 United States
AU: Chance, K
EM: kchance@cfa.harvard.edu
AF: Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, MS-50, Cambridge, MA 02138 United States
AU: Ziemke, J R
EM: ziemke@jwocky.gsfc.nasa.gov
AF: NASA/Goddard Space Flight Center, Code 916, Greenbelt, MD 20771 United States
AB: Rapid economical growth and industrial development in East Asian regions are causing serious air pollution. The influence of such air pollution is not limited to a local scale but reaches an intercontinental or hemispheric scale. Satellite-borne observations can monitor the behaviors of air pollutants in a global scale for long periods with a single instrument. In particular, ozone and nitrogen dioxide in the troposphere have a crucial role in air pollution, and many studies have tried to derive those species. Recently, instrumentations and retrieval techniques have made a lot of progress in measurements of tropospheric constituents. However, tropospheric observations from space need careful validation because of difficulties in detecting signals from the lower atmosphere through the middle atmosphere. In the present study, we intercompare the tropospheric ozone and nitrogen dioxide data obtained by satellite- and ground-based measurements in order to validate the satellite measurements. For the validation of tropospheric ozone, we utilize ozonesonde data provided by WOUDC, and three satellite-borne data (Tropospheric Ozone Residual (TOR), Cloud Slicing, and GOME) are intercompared. For nitrogen dioxide, we compare GOME observations with ground-based air monitoring measurements in Japan which are operationally conducted by the Ministry of the Environment Japan. This study demonstrates the validity and potential of those satellite datasets to apply for quantitative analysis of dispersion of air pollutants and their chemical lifetime. Acknowledgments. TOR data is provided by J. Fishman via http://asd-www.larc.nasa.gov/TOR/data.html. The ground observation data of nitrogen dioxide over Japan is provided by National Institute for Environmental Studies (NIES) under the collaboration study with NIES and Nara Women's University.
DE: 0300 ATMOSPHERIC COMPOSITION AND STRUCTURE
DE: 0365 Troposphere: composition and chemistry
DE: 0368 Troposphere: constituent transport and chemistry
DE: 0394 Instruments and techniques
DE: 9320 Asia
SC: Global Climate Change [GC]
MN: Fall Meeting 2005