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Дата изменения: Wed Mar 6 00:06:04 2002
Дата индексирования: Sat Dec 22 05:36:06 2007
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Поисковые слова: флуоресценция

Colloquium Schedule

Arecibo Observatory Colloquium Series

Mesopause-region temperature profiling by potassium resonance lidar

Jonathan Friedman, Arecibo Observatory

Abstract:
The mesopause region is the coldest and least accessible part of the earth's atmosphere. Too high for study by aircraft or balloons and too low to be reached by satellites, in situ studies are limited to occasional sounding rocket probings. This region can be studied by radars only during daytime hours, and these studies present many uncertainties. Nighttime studies by airglow techniques present their own uncertainties and are unable to resolve either the vertical spatial or the temporal structure of this dynamic region. Resonance lidars have been applied to the study of the thermal structure of the earth's mesopause region for about a decade, and only in the past year at Arecibo. In this talk, I will describe the Arecibo resonance lidar and present some early results.

5-March-2002 (sstanimi@naic.edu) Ramesh Bhat (rbhat@naic.edu)