Articles | Volume 14, issue 6
Atmos. Meas. Tech., 14, 4689–4706, 2021
Atmos. Meas. Tech., 14, 4689–4706, 2021

Research article 24 Jun 2021

Research article | 24 Jun 2021

The Adaptable 4A Inversion (5AI): description and first XCO2 retrievals from Orbiting Carbon Observatory-2 (OCO-2) observations

Matthieu Dogniaux et al.


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Dogniaux Matthieu on behalf of the Authors (22 Mar 2021)  Author's response    Manuscript
ED: Publish as is (18 Apr 2021) by Abhishek Chatterjee
Short summary
We present the Adaptable 4A Inversion (5AI), an implementation of the optimal estimation (OE) algorithm, relying on the Automatized Atmospheric Absorption Atlas (4A/OP) radiative transfer model, that enables the retrieval of greenhouse gas atmospheric weighted columns from infrared measurements. It is tested on a sample of Orbiting Carbon Observatory-2 observations, and its results satisfactorily compare to several reference products, thus showing the reliability of 5AI OE implementation.