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Title:Lidar observations of polar mesospheric clouds at South Pole: Seasonal variations
Author(s):Chu, Xinzhao; Gardner, Chester S.; Papen, George
South Pole
Geographic Coverage:South Pole
Abstract:Polar mesospheric clouds (PMCs) were observed above the geographic South Pole by an Fe Boltzmann temperature lidar from 11 Dec 99 to 24 Feb 00. During this 76-day period 297 h of observations were made on 33 different days and PMCs were detected 66.5% of the time. The mean PMC peak backscatter ratio, peak volume backscatter coefficient, total backscatter coefficient, layer centroid altitude, and layer rms width are 50.59 q- 2.33, 2.70 q- 0.12x10 -9 m-•sr -•, 3.61 q- 0.22x10 -6 sr -•, 85.49 q- 0.09 km, and 0.71 q- 0.03 km, respectively. The PMCs are highest near summer solstice when upwelling over the pole is strongest. The altitudes are 2-4 km higher than that typically observed elsewhere, including the North Pole. After solstice the mean altitudes decreases by about 64 m/day as the upwelling weakens.
Issue Date:2001-04-01
Publisher:American Geophysical Union
Citation Info:X. Chu, C. S. Gardner, and G. C. Papen, “Lidar observations of polar mesospheric clouds at South Pole: Seasonal variations”, Geophys. Res. Lett, Vol. 28, No. 7, 1203-1206, 1 April 2001. DOI: 10.1029/2000GL012524
Rights Information:Copyright 2001 American Geophysical Union
Date Available in IDEALS:2015-01-30

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