Comparison Of CO2 Laser Extinctions To HITRAN Calculations For 80 Lines-9.2 To 10.8 Ã‚Âµm

Richard F. Horton

doi:10.1117/12.957928

19 December 1979 Comparison Of CO₂ Laser Extinctions To HITRAN Calculations For 80 Lines-9.2 To 10.8μm

Richard F. Horton

Proceedings Volume 0195, Atmospheric Effects on Radiative Transfer; (1979) https://doi.org/10.1117/12.957928
Event: 23rd Annual Technical Symposium, 1979, San Diego, United States

Abstract

From February to May 1977, extensive atmospheric transmission measurements were carried out over a 5.08 km, over-water path at Cape Canaveral Air Force Station using NRL's Infrared Mobil Optical Radiation Laboratory. This paper will report transmission measurements of 80 CO₂ laser lines for three measurement periods. These periods were typified by high visibilities, (> 20 km), and 7.4, 15.7, and 18.4 torr atmospheric water vapor contents, respectively. The set of laser lines include the following transitions: 00°1 - 10°0 P4 to P44 and R4 to R42 00°1 - 02°0 P4 to P42 and R4 to R40 The Hitran calculations of atmospheric extinction were made using a computer code adapted by NRL for our DEC 11/40. The December 1975 AFCRL line compilation was augmented by a current H2O continuum model. A comparison points out possible problems with some H₂O absorption lines as well as the shape of the water continuum absorption profile.

Citation Download Citation

Richard F. Horton "Comparison Of CO₂ Laser Extinctions To HITRAN Calculations For 80 Lines-9.2 To 10.8μm", Proc. SPIE 0195, Atmospheric Effects on Radiative Transfer, (19 December 1979); https://doi.org/10.1117/12.957928

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