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Proceedings Paper

Remote sensing of atmospheric CO2 with a gas-filter correlation radiometer: a concept study
Author(s): Boyd T. Tolton
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Paper Abstract

Concern about the climatic effects of anthropogenic emissions of carbon dioxide (CO2) has resulted in a growing need, both scientifically and politically, to monitor atmospheric CO2. The development of a satellite instrument which could measure the global distribution of atmospheric CO2 would greatly improve our understanding of the global carbon cycle and provide a means of monitoring regional sources and sinks. In this paper, we propose and analyse the potential of a nadir-viewing, satellite-based remote sensing instrument consisting of a multi-channel Gas-Filter Correlation Radiometer (GFCR) tuned to the 6300 cm-1 (1.6 μm) and 5000 cm-1 (2.0 μm) regions to globally measure the atmospheric CO2 column. Although such an instrument would present some engineering challenges, we find that it could potentially measure the atmospheric CO2 integrated-column to a precision of 1ppmv of CO2 or better.

Paper Details

Date Published: 4 November 2004
PDF: 10 pages
Proc. SPIE 5543, Infrared Spaceborne Remote Sensing XII, (4 November 2004); doi: 10.1117/12.560094
Show Author Affiliations
Boyd T. Tolton, Synodon Inc. (Canada)

Published in SPIE Proceedings Vol. 5543:
Infrared Spaceborne Remote Sensing XII
Marija Strojnik, Editor(s)

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