Abstract

A temperature correction of water vapor differential absorption coefficients for the CO₂ transition line pairs (10R20, 10R18) and (10R20, 10R22) for temperatures between −0.5 °C and 20 °C is computed, with a reference temperature of 27 °C, from medium-range CO₂ lidar field measurements. The empirical temperature correction, X(T), is fitted with the polynomial X(T) = a₀ + a₁ × T + a₂ × T². For the transition line pair (10R20, 10R18) the temperature dependence ranges from 1.62%/°C to 3.47%/°C, and the temperature correction for the transition line pair (10R20, 10R22) ranges from 1.32%/°C to 2.43%/°C.

© 1993 Optical Society of America

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