HR: 1340h
AN: A33A-0133    [Abstracts]
TI: An Initial Application of Internal Validation and Soft Calibration Techniques To Preliminary OMI Total Ozone Data
AU: * Taylor, S L
EM: Steven_taylor@ssaihq.com
AF: Science Systems & Application, Inc. (SSAI), 10210 Greenbelt Road Suite 600, Lanham, MD 20706
AU: Cebula, R P
EM: richard_cebula@ssaihq.com
AF: Science Systems & Application, Inc. (SSAI), 10210 Greenbelt Road Suite 600, Lanham, MD 20706
AU: Jaross, G R
EM: jaross@qhearts.gsfc.nasa.gov
AF: Science Systems & Application, Inc. (SSAI), 10210 Greenbelt Road Suite 600, Lanham, MD 20706
AU: Ahn, C
EM: ahn@chescat.gsfc.nasa.gov
AF: Science Systems & Application, Inc. (SSAI), 10210 Greenbelt Road Suite 600, Lanham, MD 20706
AU: Yang, K
EM: kyang@ltpmail.gsfc.nasa.gov
AF: Science Systems & Application, Inc. (SSAI), 10210 Greenbelt Road Suite 600, Lanham, MD 20706
AU: Bhartia, P
EM: Pawan.Bhartia@nasa.gov
AF: NASA Godard Space Flight Center, Greenbelt Rpad, Greenbelt, MD 20771
AB: Internal validation and soft calibration techniques were previously developed and successfully used to help assess and correct the absolute and long-term calibrations of TOMS and SBUV instruments. Improvements in the new Version 8 total ozone retrieval algorithm allowed these techniques to be further refined and expanded. A key objective of the OMI instrument is to extend the long-term global ozone record previously provided by TOMS. OMI is a significantly more complex instrument and it is important to test the applicability of these internal calibration and validation techniques to this hyperspectral instrument. Here we report on the application of some of these techniques to initial OMI data at selected wavelengths corresponding to the TOMS discrete wavelengths. Application of the techniques to "First Light" OMI data revealed absolute calibration errors that are consistent with expected errors in the preliminary prelaunch calibration. These results suggest that the internal calibration/validation techniques can indeed be successfully applied to OMI. Thus, these results were used to develop calibration corrections that were then used to reprocess the first OMI data and produce near real-time images of the 2004 Antarctic Ozone Hole.
DE: 0340 Middle atmosphere--composition and chemistry
SC: Atmospheric Sciences [A]
MN: 2004 AGU Fall Meeting