Articles | Volume 12, issue 12
Atmos. Meas. Tech., 12, 6273–6301, 2019
https://doi.org/10.5194/amt-12-6273-2019

Special issue: TROPOMI on Sentinel-5 Precursor: first year in operation (AMT/ACP...

Atmos. Meas. Tech., 12, 6273–6301, 2019
https://doi.org/10.5194/amt-12-6273-2019

Research article 29 Nov 2019

Research article | 29 Nov 2019

A study of synthetic 13CH4 retrievals from TROPOMI and Sentinel-5/UVNS

Edward Malina et al.

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Short summary
We present a feasibility study on retrieving 12CH4 and 13CH4 using the recently launched TROPOMI on the Copernicus Sentinel 5P satellite and the future UVNS instrument on Sentinel 5. The ratio of 12CH4 and 13CH4 can be used to calculate the δ13C value, which has been shown to be able to distinguish between biological and non-biological sources of methane. We show that Sentinel 5/UVNS may be used to distinguish between methane source types, while Sentinel 5P/TROPOMI is subject to large biases.