Physics
Scientific paper
Oct 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989jgr....9414673t&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 94, Oct. 20, 1989, p. 14673-14681. Research supported by NSF.
Physics
64
Climatology, Clouds (Meteorology), Mesosphere, Polar Meteorology, Solar Mesosphere Explorer, Atmospheric Stratification, Northern Hemisphere, Rayleigh Scattering, Southern Hemisphere, Summer
Scientific paper
An analysis was performed of data on nine summer seasons (1981-1985) collected by the SME satellite to study large-scale geographical and temporal variability of polar mesospheric clouds (PMC). It was found that the PMC season begins at high latitude, and, within 10 to 20 days, propagates to the lowest latitude where PMC exist; this occurs at about 20 to 40 days before summer solstice. It was also found that both PMC and mesopause temperatures reach their extrema about 20 days after solstice, supporting the ice particle hypothesis of PMC. There was no indication of any influence of the location of the auroral oval on the spatial distribution of PMC.
Olivero John J.
Thomas Gareth E.
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