Other
Scientific paper
Dec 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003agufmsa51b0509a&link_type=abstract
American Geophysical Union, Fall Meeting 2003, abstract #SA51B-0509
Other
0335 Ion Chemistry Of The Atmosphere (2419, 2427), 0394 Instruments And Techniques, 2419 Ion Chemistry And Composition (0335), 2494 Instruments And Techniques, 6205 Asteroids And Meteoroids
Scientific paper
The nadir-viewing Global Ozone Measuring Experiment (GOME) UV/VIS spectrometer from ERS-2 is used to study the temporal variations of the column densities of metal species, including neutral/ionized Mg, Fe, and neutral Si. ERS-2 orbits the Earth 14 times per day at 795 km with an equatorial crossing time of 10:30 AM. GOME has a spectral range of 237 to 793 nm, with a wavelength resolution of 0.2 nm in the 237 to 316 nm region, and measures all wavelengths simultaneously, performing a complete spectral scan in 1.5 seconds. There are 5 wavelength channels. The 2 channels comprising the 237 to 316 nm range are integrated for 12 seconds giving a spatial resolution of 100 by 960 km. All other channels are integrated for 1.55 seconds giving a spatial resolution of 40 by 20 km. Metal data are examined from November 1996 to delineate changes in the mesospheric and thermospheric abundance of meteoric material resulting from the Leonid meteor shower. Global data from the month of November are analyzed before, during and after the shower to sort out Leonid effects from other temporal effects. In order to better quantify column amounts of different neutrals and ions and resolve the identity of unidentified spectral features, simulations of individual spectra are conducted and compared to actual data.
Aikin A.
Burrows John P.
Grebowsky Joseph M.
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