Anomalous dispersion in the atmosphere derived from the optical depth

Egil Bingen; Bjornar Ystad

doi:10.1117/12.138966

5 January 1993 Anomalous dispersion in the atmosphere derived from the optical depth

Egil Bingen, Bjornar Ystad

Author Affiliations +

Proceedings Volume 1762, Infrared Technology XVIII; (1993) https://doi.org/10.1117/12.138966
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

The computer code FASCOD2 calculates the atmospheric optical depth with high spectral resolution for different meteorological situations. Since the optical depth and the refractive index are related to respectively the imaginary and real part of the susceptibility, which are interconnected by the Kramers-Kronig relations, it is possible to calculate the atmospheric refractive index by a modified FASCOD2. Due to the computational burden and the lack of well-defined distant wings of the molecular line shape, it is only possible to compute the anomalous dispersion in the neighborhood of the molecular resonance frequencies. This presentation describes briefly a theoretical development of the anomalous dispersion from the optical depth which is valid in a spectral interval ranging from radio waves up to the UV. Line by line calculations of the atmospheric anomalous dispersion at high spectral resolution will be demonstrated for different meteorological situations.

Citation Download Citation

Egil Bingen and Bjornar Ystad "Anomalous dispersion in the atmosphere derived from the optical depth", Proc. SPIE 1762, Infrared Technology XVIII, (5 January 1993); https://doi.org/10.1117/12.138966

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE