Clouds effect on the atmospheric total column carbon dioxide retrieval by space orbiting Argus 1000 micro-spectrometer: introductory study

Naif Alsalem; Catherine Tsouvaltsidis; Caroline Roberts; Brendan Quine

doi:10.1117/12.2323030

22 October 2018 Clouds effect on the atmospheric total column carbon dioxide retrieval by space orbiting Argus 1000 micro-spectrometer: introductory study

Naif Alsalem, Catherine Tsouvaltsidis, Caroline Roberts, Brendan Quine

Author Affiliations +

Proceedings Volume 10776, Remote Sensing of the Atmosphere, Clouds, and Precipitation VII; 107760Z (2018) https://doi.org/10.1117/12.2323030
Event: SPIE Asia-Pacific Remote Sensing, 2018, Honolulu, Hawaii, United States

Abstract

Carbon Dioxide (CO₂) is one of the most important greenhouse gases after water vapor (H₂O) which plays significant role in the climate process. Accurate space-based measurement of CO₂ is of great significance in inferring the location of CO₂ sources and sinks. Uncertainties in greenhouse gases (GHG) retrieval process must be minimized to accurately infer the actual amount of the atmospheric species. Clouds pose a large uncertainty in CO₂ spacebased retrieval process leading, mostly, to an underestimation in the CO₂ absorption amount above the cloud layer provided that photons do not perform multiple paths. In this paper, three different cases of data collected over cloudy and clear skies by Argus 1000 micro-spectrometer were analyzed. Findings show that the CO₂ absorption in the absence of clouds is approximately 4.5% higher than when clouds are present.

Citation Download Citation

Naif Alsalem, Catherine Tsouvaltsidis, Caroline Roberts, and Brendan Quine "Clouds effect on the atmospheric total column carbon dioxide retrieval by space orbiting Argus 1000 micro-spectrometer: introductory study", Proc. SPIE 10776, Remote Sensing of the Atmosphere, Clouds, and Precipitation VII, 107760Z (22 October 2018); https://doi.org/10.1117/12.2323030

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