HR: 1340h
AN: A33A-0138    [Abstracts]
TI: Spatial Stray Light for the Ozone Monitoring Instrument (OMI) Onboard Aura
AU: * Leppelmeier, G W
EM: gwl@gands.pp.fi
AF: FMI, PO Box 503, Helsinki, 00101 Finland
AU: Dobber, M
EM: dobber@knmi.nl
AF: KNMI, PO Box 201, De Bilt, 3730 AE Netherlands
AU: van den Oord, G
EM: oordvd@knmi.nl
AF: KNMI, PO Box 201, De Bilt, 3730 AE Netherlands
AU: de Vries, J
EM: j.de.vries@dutchspace.nl
AF: DutchSpace, PO Box 32070, Leiden, 2303 DB Netherlands
AB: OMI is a Dutch-Finnish imaging spectrograph onboard NASA's Aura mission, launched on 15 July of this year. Its wavelength range is from 270 nm to 500 nm. The imaging property of the CCD detectors is used to obtain simultaneous spectra over a 2600 km swath perpendicular to the satellite's path. These measurements will provide daily global coverage of a number of atmospheric gases, continuing and extending the measurements of such missions as UARS, ERS-1, ERS-2, Envisat, and the TOMS flights. Preflight measurements indicate that the spatial stray light fraction (i.e. light scattered in the cross-path direction, outside the line-spread-function) is in the range of 2-5%, depending on wavelength and incident light direction, and will need correction in order to meet the scientific goals of the instrument. The work reported here will present detailed characterization of the stray light and an algorithm for correcting for spatial stray light. Examples and estimates of the accuracy of the correction will be given.
DE: 0340 Middle atmosphere--composition and chemistry
DE: 0365 Troposphere--composition and chemistry
SC: Atmospheric Sciences [A]
MN: 2004 AGU Fall Meeting