Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 12, issue 11
Articles | Volume 12, issue 11
https://doi.org/10.5194/amt-12-6125-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-12-6125-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 12, issue 11
Research article
 | 
25 Nov 2019
Research article |  | 25 Nov 2019

Retrieval of atmospheric CH4 vertical information from ground-based FTS near-infrared spectra

Minqiang Zhou, Bavo Langerock, Mahesh Kumar Sha, Nicolas Kumps, Christian Hermans, Christof Petri, Thorsten Warneke, Huilin Chen, Jean-Marc Metzger, Rigel Kivi, Pauli Heikkinen, Michel Ramonet, and Martine De Mazière

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AR by minqiang zhou on behalf of the Authors (13 Sep 2019)  Author's response   Manuscript 
ED: Publish as is (28 Oct 2019) by Hartwig Harder
AR by minqiang zhou on behalf of the Authors (28 Oct 2019)  Manuscript 
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Short summary
In this study, CH4 vertical profile is retrieved by SFIT4 code from FTIR NIR spectra based on six sites during 2016–2017. The degree of freedom for signal of the SFIT4NIR retrieval is about 2.4, with two distinct species of information in the troposphere and in the stratosphere. By comparison against other measurements, e.g. TCCON standard products, satellite observations and AirCore measurements, the uncertainties of the SFIT4NIR total column and partial columns are estimated and discussed.
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