Toward anthropogenic combustion emission constraints from space-based analysis of urban COâ/CO sensitivity
We explore the value of multispectral CO retrievals from NASA/Terra Measurement of Pollution In The Troposphere (MOPITT v5), along with Atmospheric COâ Observations from Space (ACOSv2.9) CO2 retrievals from the Japan Aerospace Exploration Agency Greenhouse Gases Observing Satellite (GOSAT), for characterizing emissions from anthropogenic combustion. We use these satellite retrievals to analyze observed COâ/CO enhancement ratios (ÎCOâ/ÎCO) over megacities. Since CO is coemitted with COâ in anthropogenic combustion, the observed ÎCOâ/ÎCO characterizes the general trend in combustion activity. Our analyses show patterns in ÎCOâ/ÎCO that correspond well with the developed/developing status of megacities, and ÎCOâ/ÎCO that agree well with available literature and emission inventories to approximately 20%. Comparisons with ÎCOâ/ÎCO derived from Total Carbon Column Observing Network measurements show similar agreement, where some of the differences in observed ÎCOâ/ÎCO are due to representativeness and limited GOSAT data. Our results imply potential constraints in anthropogenic combustion from GOSAT/MOPITT, particularly in augmenting our carbon monitoring systems.
document
https://n2t.org/ark:/85065/d7d50nt6
eng
geoscientificInformation
Text
publication
2016-01-01T00:00:00Z
publication
2013-09-23T00:00:00Z
Copyright 2013 American Geophysical Union.
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