Latitude Variation In Light Scattered From Polar Mesospheric Clouds

Details Latitude Variation In Light Scattered From Polar Mesospheric Clouds Latitude Variation In Light Scattered From Polar Mesospheric Clouds

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agusm..sa22a02c&link_type=abstract

American Geophysical Union, Spring Meeting 2001, abstract #SA22A-02

Physics

0310 Airglow And Aurora, 0335 Ion Chemistry Of The Atmosphere (2419, 2427), 0355 Thermosphere--Composition And Chemistry, 2419 Ion Chemistry And Composition (0335)

Scientific paper

A mid-ultraviolet imager has measured the scattered intensities of polar mesospheric clouds over the northern and southern polar regions during the austral summer of 1997-98 and the arctic summer of 1999. The intensities are those at the peak in the PMC radiance profiles for a waveband of 235 - 263 nm. The peak radiance averaged 3.3 +/- 1.7 mega-Rayleighs (MR) for 13 passes over the south polar region, where the scattering angle was ~111° . The peak radiance averaged 1.7 +/- 1.0 MR for 14 passes over the north polar region, where the scattering angle was ~48° . The PMC intensities increased with increasing latitude in both the north and the south, the rates of increase being 0.23 MR/° latitude in the south and 0.070 MR/° latitude in the north.

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