An empirical model for the excess absorption by atmospheric water vapor in the spectral region from 3 to 3000 GHz

V. Yu. Katkov

doi:10.1117/12.2303335

30 November 2017 An empirical model for the excess absorption by atmospheric water vapor in the spectral region from 3 to 3000 GHz

V. Yu. Katkov

Author Affiliations +

Proceedings Volume 2250, International Conference on Millimeter and Submillimeter Waves and Applications 1994; 22508U (2017) https://doi.org/10.1117/12.2303335
Event: Millimeter and Submillimeter Waves and Applications: International Conference, 1994, San Diego, CA, United States

Abstract

In the present paper, an empirical formula is proposed which relater-'. the excess absorption by atmospheric water va or (with respect to the theoretical prediction based on the Van Vleck '-Weisskopf line shape) with frequency, temperature,water vapor and dry air pressures~ This formula makes it possible to 9erform reliable calculations of water vapor absorption at frequenci es up to 3000 |lz without understanding the true physical nature of the e:cess. A simple numerical model is formulated for computing the absorption in the frequency ranqe below 450 G11-4which is very important for remote sensing of the troposphere. This model is compared with the MPM model't.

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V. Yu. Katkov "An empirical model for the excess absorption by atmospheric water vapor in the spectral region from 3 to 3000 GHz", Proc. SPIE 2250, International Conference on Millimeter and Submillimeter Waves and Applications 1994, 22508U (30 November 2017); https://doi.org/10.1117/12.2303335

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