Physics – Geophysics
Scientific paper
Apr 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007georl..3407803k&link_type=abstract
Geophysical Research Letters, Volume 34, Issue 7, CiteID L07803
Physics
Geophysics
7
Atmospheric Composition And Structure: Aerosols And Particles (0345, 4801, 4906), Atmospheric Processes: Remote Sensing, Mathematical Geophysics: Spectral Analysis (3205, 3280), Mathematical Geophysics: Uncertainty Quantification (1873)
Scientific paper
TOMS (version 8) ozone and aerosol data are analyzed in order to extract characteristic temporal patterns on a near global scale. A clear annual cycle of the global average for the ozone is apparent in the measured intervals (Nimbus-7: 1978-1993, Earth-Probe: 1996-2005), however a similar initial periodicity disappears for the aerosol index in the Earth-Probe records. A detailed spectral analysis revealed significant asymmetries in the Nimbus-7 aerosol signal for the two hemispheres, which is not present in Earth-Probe data. The available record from the Ozone Monitoring Instrument (one and a half years) shows a return to the seasonal variability seen by Nimbus-7 in both hemispheres. This suggests that calibration difficulties of the Earth-Probe instrument started earlier than mid 2000, when it became apparent from many indications.
Jánosi Imre M.
Kiss P.
Torres Omar
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