HR: 1340h
AN: A33A-0819    [Abstracts]
TI: NATIVE Column Ozone Measurements Over Richland, WA During INTEX-B and Comparisons With OMI Satellite Retrievals
AU: * Taubman, B
EM: taubmanbf@appstate.edu
AF: Appalachian State University, Department of Chemistry, Boone, NC 28607,
AU: Hui, J
EM: wzh107@psu.edu
AF: The Pennsylvania State University, Department of Meteorology, University Park, PA 16802,
AU: Thompson, A
EM: anne@meteo.psu.edu
AF: The Pennsylvania State University, Department of Meteorology, University Park, PA 16802,
AU: Clothiaux, E
EM: cloth@essc.psu.edu
AF: The Pennsylvania State University, Department of Meteorology, University Park, PA 16802,
AU: Labow, G
EM: labow@lglass.gsfc.nasa.gov
AF: SSAI, NASA-Goddard Space Flight Center, Greenbelt, MD 20771,
AU: Krotkov, N
EM: krotkov@mhatter.gsfc.nasa.gov
AF: Goddard Earth Sciences and Technology Center, University of Maryland Baltimore County, Greenbelt, MD 20771,
AB: The Nittany Atmospheric Trailer and Integrated Validation Experiment (NATIVE, http://www.meteo.psu.edu/~btaubman/Webpage/native.html) was deployed in Richland, WA from April 21, 2006 through May 15, 2006 for INTEX-B (Intercontinental Chemical Transport Experiment, http://www.espo.nasa.gov/intex-b/). Column and vertical profile ozone measurements were made using daily ozonesonde launches, a Microtops sunphotometer, and a UV shadowband radiometer. These measurements were compared with Aura Ozone Monitoring Instrument (OMI) total column ozone (TCO) derived using the DOAS and TOMS 8 retrieval algorithms and the tropospheric ozone residual (TOR) derived by subtracting the Microwave Limb Sounder (MLS) stratospheric column ozone (SCO) from the TCO. The sonde derived TCO, TOR, and SCO data were generally greater than the satellite products when using the same dynamically defined tropopause heights. The shadowband radiometer TCO values were highly dependent on the solar irradiance values at the top of the atmosphere estimated using Langley regressions as well as the assumed ozone absorption coefficients. The DOAS derived TCO values were generally greater than those using the TOMS 8 algorithm, but the opposite was true when cloud cover exceeded 0.2. Steep horizontal ozone gradients in the upper troposphere, the result of high amplitude Rossby wave propagation over the region, also created discrepancies among the different instruments.
DE: 0300 ATMOSPHERIC COMPOSITION AND STRUCTURE
DE: 0340 Middle atmosphere: composition and chemistry
DE: 0341 Middle atmosphere: constituent transport and chemistry (3334)
DE: 0365 Troposphere: composition and chemistry
DE: 0368 Troposphere: constituent transport and chemistry
SC: Atmospheric Sciences [A]
MN: 2007 Fall Meeting