2.7/4.3 micron CO₂ branching ratio measurement /
Steven M. Miller.

Description

Main Author

Miller, Steven M., 1952-

Related Names

U.S. Air Force Geophysics Laboratory.

Language(s)

English

Published

Hanscom AFB, Massachusetts : Air Force Geophysics Laboratory, Air Force Systems Command, United States Air Force, 1989.

Subjects

Interferometry.
Emission spectroscopy.
Carbon dioxide.
Upper atmosphere.
Emission spectroscopy.
Interferometry.
Upper atmosphere.
Carbon dioxide.

Summary

Two rocket infrared measurement programs during the 1970 's (ICe CAP and SPIRE) measured significant amounts of radiation in the upper atmosphere at 2.7 microns. Several papers have been published which attribute this radiation at 2.7 microns to the hot bands of Carbon dioxide. To determine the contribution of 2.7 microns radiation from CO2 each of these analyses rely on a simple theoretical calculation of the CO2 branching ratio between 2.7 microns and 4.3 microns. The radiative branching from the CO2(021) combination vibrational energy state to the CO2 (020) and CO2 (000) states is measured using both laser induced fluorescence excitation and spectrally resolved fluorescence experiments. These measurements bound the branching ratio (C02(021) CO2 (020)/CO2(O21) CO2 (000)) between 13 and 16.

Note

Research supported by the Air Force Geophysics Laboratory, United States Air Force, Hanscom AFB, Massachusetts.
Optical Physics Division Project 2310.
ADA215952 (from http://www.dtic.mil).
"23 January 1989."

Physical Description

iv, 25 pages : illustrations ; 28 cm.

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