Feasibility of global tropospheric and total ozone monitoring using a double-etalon Fabry-Perot interferometer

Allen M. Larar; S. Roland Drayson

doi:10.1117/12.187595

30 September 1994 Feasibility of global tropospheric and total ozone monitoring using a double-etalon Fabry-Perot interferometer

Allen M. Larar, S. Roland Drayson

Author Affiliations +

Proceedings Volume 2266, Optical Spectroscopic Techniques and Instrumentation for Atmospheric and Space Research; (1994) https://doi.org/10.1117/12.187595
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

Monitoring of the global distribution of tropospheric ozone (O₃) is desirable for enhanced scientific understanding as well as to potentially lessen the ill-health impacts associated with exposure to elevated concentrations in the lower atmosphere. Such a capability can be achieved using a satellite-based device making high spectral resolution measurements with high signal-to-noise ratios; this would enable observation in the pressure-broadened wings of strong O₃ lines while minimizing the impact of undesirable signal contributions (i.e., from the terrestrial surface and interfering species). The Fabry-Perot interferometer (FPI) provides high spectral resolution and high throughput capabilities that are essential for this measurement task. Through proper selection of channel spectral regions, the FPI optimized for tropospheric O₃ measurements can simultaneously observe a stratospheric component and thus the total O₃ column abundance. A conceptual instrument design to achieve the desired measurement is presented. It involves a double-etalon fixed-gap series configuration FPI along with an ultra-narrow bandpass filter to achieve single-order operation with an overall spectral resolution of approximately .068 cm^-1, sampling a narrow spectral region within the strong 9.6 micrometers ozone infrared band from a nadir-viewing satellite configuration. A retrieval technique has been implemented and is demonstrated for a tropical atmosphere possessing enhanced tropospheric ozone amounts. An error analysis assessing the impact on retrieved O₃ amounts of the most significant uncertainties associated with this particular measurement has been performed for several different types of atmospheres. Results show the proposed instrumentation to enable a good measurement of absolute ozone amounts and an even better determination of relative changes.

Citation Download Citation

Allen M. Larar and S. Roland Drayson "Feasibility of global tropospheric and total ozone monitoring using a double-etalon Fabry-Perot interferometer", Proc. SPIE 2266, Optical Spectroscopic Techniques and Instrumentation for Atmospheric and Space Research, (30 September 1994); https://doi.org/10.1117/12.187595

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

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
12 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Ozone

Fabry–Perot interferometers

Spectral resolution

Error analysis

Atmospheric modeling

Bandpass filters

Satellites

Show All Keywords

Keywords/Phrases

Search In:

Publication Years