A retrieval of xCO2 from ground-based mid-infrared NDACC solar absorption spectra and comparison to TCCON
Two global networks of ground-based Fourier transform spectrometers are measuring abundances of atmospheric trace gases that absorb in the near infrared and mid-infrared: the Network for the Detection of Atmospheric Composition Change (NDACC) and the Total Carbon Column Observing Network (TCCON). Th...
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2023
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00068678 2023-10-09T21:54:44+02:00 A retrieval of xCO2 from ground-based mid-infrared NDACC solar absorption spectra and comparison to TCCON Chiarella, Rafaella Buschmann, Matthias Laughner, Joshua Morino, Isamu Notholt, Justus Petri, Christof Toon, Geoffrey Velazco, Voltaire A. Warneke, Thorsten 2023-09 electronic https://doi.org/10.5194/amt-16-3987-2023 https://noa.gwlb.de/receive/cop_mods_00068678 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00067097/amt-16-3987-2023.pdf https://amt.copernicus.org/articles/16/3987/2023/amt-16-3987-2023.pdf eng eng Copernicus Publications Atmospheric Measurement Techniques -- http://www.bibliothek.uni-regensburg.de/ezeit/?2505596 -- http://www.atmospheric-measurement-techniques.net/ -- 1867-8548 https://doi.org/10.5194/amt-16-3987-2023 https://noa.gwlb.de/receive/cop_mods_00068678 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00067097/amt-16-3987-2023.pdf https://amt.copernicus.org/articles/16/3987/2023/amt-16-3987-2023.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2023 ftnonlinearchiv https://doi.org/10.5194/amt-16-3987-2023 2023-09-10T23:21:45Z Two global networks of ground-based Fourier transform spectrometers are measuring abundances of atmospheric trace gases that absorb in the near infrared and mid-infrared: the Network for the Detection of Atmospheric Composition Change (NDACC) and the Total Carbon Column Observing Network (TCCON). The first lacks a CO2 product; therefore, this study focuses on developing an xCO2 retrieval method for NDACC from a spectral window in the 4800 cm−1 region. This retrieval will allow extending ground-based measurements back in time, which we will demonstrate with historical data available from Ny-Ålesund, Svalbard. At this site, both TCCON and NDACC measurements are routinely performed, which is an advantage for collocated comparisons. The results are compared with collocated TCCON measurements of column-averaged dry-air mole fractions of CO2 (denoted by xCO2) in Ny-Ålesund, Svalbard, and only TCCON in Burgos, Philippines. We found that it is possible to retrieve xCO2 from NDACC spectra with a precision of 0.2 %. The comparison between the new retrieval and TCCON showed that the sensitivity of the new retrieval is high in the troposphere and lower in the upper stratosphere, similar to TCCON, as seen in the averaging kernels, and that the seasonality is well captured as seen in the retrieved time series. Additionally, we have included a retrieval strategy suggestion to improve the quality of the xCO2 product. Article in Journal/Newspaper Ny Ålesund Ny-Ålesund Svalbard Niedersächsisches Online-Archiv NOA Svalbard Ny-Ålesund Atmospheric Measurement Techniques 16 17 3987 4007 |
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article Verlagsveröffentlichung Chiarella, Rafaella Buschmann, Matthias Laughner, Joshua Morino, Isamu Notholt, Justus Petri, Christof Toon, Geoffrey Velazco, Voltaire A. Warneke, Thorsten A retrieval of xCO2 from ground-based mid-infrared NDACC solar absorption spectra and comparison to TCCON |
topic_facet |
article Verlagsveröffentlichung |
description |
Two global networks of ground-based Fourier transform spectrometers are measuring abundances of atmospheric trace gases that absorb in the near infrared and mid-infrared: the Network for the Detection of Atmospheric Composition Change (NDACC) and the Total Carbon Column Observing Network (TCCON). The first lacks a CO2 product; therefore, this study focuses on developing an xCO2 retrieval method for NDACC from a spectral window in the 4800 cm−1 region. This retrieval will allow extending ground-based measurements back in time, which we will demonstrate with historical data available from Ny-Ålesund, Svalbard. At this site, both TCCON and NDACC measurements are routinely performed, which is an advantage for collocated comparisons. The results are compared with collocated TCCON measurements of column-averaged dry-air mole fractions of CO2 (denoted by xCO2) in Ny-Ålesund, Svalbard, and only TCCON in Burgos, Philippines. We found that it is possible to retrieve xCO2 from NDACC spectra with a precision of 0.2 %. The comparison between the new retrieval and TCCON showed that the sensitivity of the new retrieval is high in the troposphere and lower in the upper stratosphere, similar to TCCON, as seen in the averaging kernels, and that the seasonality is well captured as seen in the retrieved time series. Additionally, we have included a retrieval strategy suggestion to improve the quality of the xCO2 product. |
format |
Article in Journal/Newspaper |
author |
Chiarella, Rafaella Buschmann, Matthias Laughner, Joshua Morino, Isamu Notholt, Justus Petri, Christof Toon, Geoffrey Velazco, Voltaire A. Warneke, Thorsten |
author_facet |
Chiarella, Rafaella Buschmann, Matthias Laughner, Joshua Morino, Isamu Notholt, Justus Petri, Christof Toon, Geoffrey Velazco, Voltaire A. Warneke, Thorsten |
author_sort |
Chiarella, Rafaella |
title |
A retrieval of xCO2 from ground-based mid-infrared NDACC solar absorption spectra and comparison to TCCON |
title_short |
A retrieval of xCO2 from ground-based mid-infrared NDACC solar absorption spectra and comparison to TCCON |
title_full |
A retrieval of xCO2 from ground-based mid-infrared NDACC solar absorption spectra and comparison to TCCON |
title_fullStr |
A retrieval of xCO2 from ground-based mid-infrared NDACC solar absorption spectra and comparison to TCCON |
title_full_unstemmed |
A retrieval of xCO2 from ground-based mid-infrared NDACC solar absorption spectra and comparison to TCCON |
title_sort |
retrieval of xco2 from ground-based mid-infrared ndacc solar absorption spectra and comparison to tccon |
publisher |
Copernicus Publications |
publishDate |
2023 |
url |
https://doi.org/10.5194/amt-16-3987-2023 https://noa.gwlb.de/receive/cop_mods_00068678 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00067097/amt-16-3987-2023.pdf https://amt.copernicus.org/articles/16/3987/2023/amt-16-3987-2023.pdf |
geographic |
Svalbard Ny-Ålesund |
geographic_facet |
Svalbard Ny-Ålesund |
genre |
Ny Ålesund Ny-Ålesund Svalbard |
genre_facet |
Ny Ålesund Ny-Ålesund Svalbard |
op_relation |
Atmospheric Measurement Techniques -- http://www.bibliothek.uni-regensburg.de/ezeit/?2505596 -- http://www.atmospheric-measurement-techniques.net/ -- 1867-8548 https://doi.org/10.5194/amt-16-3987-2023 https://noa.gwlb.de/receive/cop_mods_00068678 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00067097/amt-16-3987-2023.pdf https://amt.copernicus.org/articles/16/3987/2023/amt-16-3987-2023.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/amt-16-3987-2023 |
container_title |
Atmospheric Measurement Techniques |
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16 |
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17 |
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3987 |
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4007 |
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1779318427223064576 |