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Impact of Molecular Spectroscopy on Carbon Monoxide Abundances from TROPOMI

Hochstaffl, Philipp and Schreier, Franz and Birk, Manfred and Wagner, Georg and Feist, Dietrich G. and Notholt, Justus and Sussmann, Ralf and Té, Yao (2020) Impact of Molecular Spectroscopy on Carbon Monoxide Abundances from TROPOMI. Remote Sensing, 12 (21), p. 3486. Multidisciplinary Digital Publishing Institute (MDPI). doi: 10.3390/rs12213486. ISSN 2072-4292.

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Official URL: https://www.mdpi.com/2072-4292/12/21/3486

Abstract

The impact of SEOM-IAS (Scientific Exploitation of Operational Missions-Improved Atmospheric Spectroscopy) spectroscopic information on CO columns from TROPOMI (Tropospheric Monitoring Instrument) shortwave infrared (SWIR) observations was examined. HITRAN 2016 (High Resolution Transmission) and GEISA 2015 (Gestion et Etude des Informations Spectroscopiques Atmosphériques 2015) were used as a reference upon which the spectral fitting residuals, retrieval errors and inferred quantities were assessed. It was found that SEOM-IAS significantly improves the quality of the CO retrieval by reducing the residuals to TROPOMI observations. The magnitude of the impact is dependent on the climatological region and spectroscopic reference used. The difference in the CO columns was found to be rather small, although discrepancies reveal, for selected scenes, in particular, for observations with elevated molecular concentrations. A brief comparison to Total Column Carbon Observing Network (TCCON) and Network for the Detection of Atmospheric Composition Change (NDACC) also demonstrated that both spectroscopies cause similar columns; however, the smaller retrieval errors in the SEOM with Speed-Dependent Rautian and line-Mixing (SDRM) inferred CO turned out to be beneficial in the comparison of post-processed mole fractions with ground-based references.

Item URL in elib:https://elib.dlr.de/136920/
Document Type:Article
Title:Impact of Molecular Spectroscopy on Carbon Monoxide Abundances from TROPOMI
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Hochstaffl, PhilippPhilipp.Hochstaffl (at) dlr.dehttps://orcid.org/0000-0001-9537-3050
Schreier, FranzFranz.Schreier (at) dlr.dehttps://orcid.org/0000-0001-7196-6599
Birk, ManfredManfred.Birk (at) dlr.deUNSPECIFIED
Wagner, GeorgGeorg.Wagner (at) dlr.deUNSPECIFIED
Feist, Dietrich G.DLR, IPA und Univ. Münchenhttps://orcid.org/0000-0002-5890-6687
Notholt, JustusInstitute of Environmental Physics, University of Bremen, Bremen, Germanyhttps://orcid.org/0000-0002-3324-885X
Sussmann, RalfInstitute of Meteorology and Climate Research (IMK-IFU), Karlsruhe Institute of Technology (KIT), Garmisch-Partenkirchen, GermanyUNSPECIFIED
Té, YaoLERMA-IPSL, Sorbonne Université, CNRS, Observatoire de Paris, PSL Université, 75005, Paris, Francehttps://orcid.org/0000-0001-6405-8074
Date:23 October 2020
Journal or Publication Title:Remote Sensing
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:12
DOI :10.3390/rs12213486
Page Range:p. 3486
Publisher:Multidisciplinary Digital Publishing Institute (MDPI)
ISSN:2072-4292
Status:Published
Keywords:infrared; radiative transfer; molecular absorption; line-by-line; line profiles
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):Vorhaben Spectroscopic Methods in Remote Sensing (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Atmospheric Processors
Institute of Atmospheric Physics > Lidar
Remote Sensing Technology Institute > Experimental Methods
Deposited By: Hochstaffl, Philipp
Deposited On:06 Nov 2020 10:22
Last Modified:10 Nov 2020 14:27

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