HR: 09:10h
AN: A11A-05 INVITED     [PDF]
TI: Tropospheric Ozone from TOMS: Providing the First Depictions of the Extent of Global Pollution
AU: * Fishman, J
EM: jack.fishman@nasa.gov
AF: Atmospheric Sciences, NASA Langley Research Center, Hampton, VA 23681 United States
AU: Chandra, S
EM: chandra@carioca.gsfc.nasa.gov
AF: Atmospheric Chemistry and Dynamics Branch, NASA Goddard Space Flight Center, Greenbelt, MD 20771 United States
AU: Thompson, A M
EM: thompson@gator1.gsfc.nasa.gov
AF: Atmospheric Chemistry and Dynamics Branch, NASA Goddard Space Flight Center, Greenbelt, MD 20771 United States
AU: Ziemke, J R
EM: ziemke@jwocky.gsfc.nasa.gov
AF: Atmospheric Chemistry and Dynamics Branch, NASA Goddard Space Flight Center, Greenbelt, MD 20771 United States
AU: Hudson, R D
EM: hudson@atmos.umd.edu
AF: Department of Meteorology, University of Maryland, College Park`, MD 20742 United States
AU: Newchurch, M J
EM: mike@nsstc.uah.edu
AF: Department of Atmospheric Science, University of Alabama in Huntsville, Huntsville, AL 35805 United States
AU: Creilson, J K
EM: j.k.creilson@larc.nasa.gov
AF: Atmospheric Sciences, NASA Langley Research Center, Hampton, VA 23681 United States
AU: Wozniak, A E
EM: a.e.balok@larc.nasa.gov
AF: Atmospheric Sciences, NASA Langley Research Center, Hampton, VA 23681 United States
AU: Wozniak, A E
EM: a.e.balok@larc.nasa.gov
AF: Atmospheric Chemistry and Dynamics Branch, NASA Goddard Space Flight Center, Greenbelt, MD 20771 United States
AB: The Total Ozone Mapping Spectrometer (TOMS) was first launched more than a quarter century ago to determine the global distribution of total ozone, a quantity that is dominated by the ozone distribution in the stratosphere. On average, approximately 90 percent of the total ozone column resides in the stratosphere, which is an order of magnitude greater than what is present in the troposphere. However, because of the care taken to ensure the instrument's precision and accuracy, the use of TOMS data has also provided the atmospheric chemistry community an excellent understanding of the distribution of tropospheric ozone. This paper will focus on the history of the development of the use of TOMS to provide meaningful tropospheric ozone measurements. The first papers to suggest the use of TOMS for tropospheric studies were published in the mid-1980s. Subsequently, the research over the past decade has been the development of a variety of methods to separate the tropospheric component from the total ozone column as cleanly and as accurately as possible. Using these various techniques, there have been a number of studies that have identified pollution plumes from tropical biomass burning and, more recently, pollution episodes at northern temperate latitudes during the summer. The synergistic use of TOMS with other trace gas species observed from space (e.g., CO, NO2, and aerosols) has provided a unique perspective into global-scale tropospheric chemical processes. Other new developments include the use of TOMS with cloud and reflectivity measurements to provide a profiling capability in the upper troposphere. The methodologies developed for TOMS have provided the foundation for deriving tropospheric information for ozone and other species from instruments such as GOME, SCIAMACHY, and OMI.
DE: 0365 Troposphere--composition and chemistry
DE: 0394 Instruments and techniques
DE: 1704 Atmospheric sciences
DE: 3360 Remote sensing
SC: Atmospheric Sciences [A]
MN: 2003 Fall Meeting