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Temperature sensitivity of differential absorption lidar measurements of water vapor in the 720-nm regionRecently measured properties of water vapor (H2O) absorption lines have been used in calculations to evalute the temperature sensitivity of differential absorption lidar (Dial) H2O measurements. This paper estimates the temperature sensitivity of H2O lines in the 717-733-nm region for both H2O mixing ratio and number density measurements, and discusses the influence of the H2O line ground state energies E-double-prime, the H2O absorption linewidths, the linewidth temperature dependence parameter, and the atmospheric temperature and pressure variations with altitude and location on the temperature sensitivity calculations. Line parameters and temperature sensitivity calculations for 67 H2O lines in the 720-nm band are given which can be directly used in field experiments. Water vapor lines with E-double-prime values in the 100-300/cm range were found to be optimum for Dial measurements of H2O number densities, while E-double-prime values in the 250-500/cm range were found to be optimum for H2O mixing ratio measurements.
Document ID
19910050671
Document Type
Reprint (Version printed in journal)
Authors
Browell, Edward V. (NASA Langley Research Center Hampton, VA, United States)
Ismail, Syed (NASA Langley Research Center Hampton, VA, United States)
Grossmann, Benoist E. (Thomson-CSF Guyancourt, France)
Date Acquired
August 15, 2013
Publication Date
April 20, 1991
Publication Information
Publication: Applied Optics
Volume: 30
ISSN: 0003-6935
Subject Category
METEOROLOGY AND CLIMATOLOGY
Funding Number(s)
CONTRACT_GRANT: NAS1-18460
CONTRACT_GRANT: NCC1-32
Distribution Limits
Public
Copyright
Other