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Spectroscopic database for TROPOMI/Sentinel-5P: CO and H2O at 2.3μm

Wilzewski, Jonas and Loos, Joep and Birk, Manfred and Wagner, Georg (2016) Spectroscopic database for TROPOMI/Sentinel-5P: CO and H2O at 2.3μm. 13th ASA Conference (united with 14th HITRAN Conference), 24. - 26. Aug. 2016, Reims, Frankreich. DOI: 10.5281/zenodo.61694

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Official URL: https://zenodo.org/record/61694


The TROPOspheric Monitoring Instrument (TROPOMI) aboard the European Space Agency's Copernicus Sentinel-5 Precursor satellite, to be launched this year, mandates high-accuracy spectral reference data for CO and H2O in the 2.3μm region [1]. We present measurements of absorption line parameters for H2O and for the 2-0 rovibrational band of CO to be used in TROPOMI atmospheric retrievals. The experiments were carried out on a Bruker IFS 125HR Fourier transform spectrometer and a multispectrum fitting software developed at DLR was used for parameter retrieval [2] using the Hartmann-Tran-Profile [3,4]. In the case of carbon monoxide, we report line intensities, air-broadening and -shift parameters for lines of the 2-0 rovibrational band, which serve as a useful validation of the HITRAN2012 spectral database [5] while our analysis of Dicke narrowing, speed dependence and Rosenkranz line mixing emphasizes the importance of modern line shape functions. Comparisons with previous studies of these non-Voigt parameters (e.g. [6]) show good agreement. As for H2O, spectral parameters were measured in the 4190cm-1-4340cm-1 spectral range. Comparisons of measured line intensities of the ν3 band show remarkable agreement (<1.5% deviation on average) with ab initio values [7,8] and we will present air-broadening, -narrowing and -shift parameters together with their temperature dependences. References [1] J.P. Veefkind et al, Remote Sensing of Environment 120, 70 (2012) [2] J. Loos et al, 13th HITRAN database conference, 2014 (doi: 10.5281/zenodo.11156) [3] N.H. Ngo et al, JQSRT 129, 89 (2013) [4] N.H. Ngo et al, JQSRT 134, 105 (2014) [5] L.S. Rothman et al, JQSRT 130, 4 (2013) [6] V.M. Devi et al, JQSRT 113, 1013 (2012) [7] L. Lodi et al, J Chem Phys 135, 034113 (2011) [8] J. Tennyson, University College London, Private communication

Item URL in elib:https://elib.dlr.de/106050/
Document Type:Conference or Workshop Item (Poster)
Title:Spectroscopic database for TROPOMI/Sentinel-5P: CO and H2O at 2.3μm
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Wilzewski, JonasJonas.Wilzewski (at) dlr.deUNSPECIFIED
Loos, JoepJoep.Loos (at) dlr.deUNSPECIFIED
Birk, ManfredManfred.Birk (at) dlr.deUNSPECIFIED
Wagner, Georggeorg.wagner (at) dlr.deUNSPECIFIED
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
DOI :10.5281/zenodo.61694
Keywords:TROPOMI, Spectroscopy, Database, Water
Event Title:13th ASA Conference (united with 14th HITRAN Conference)
Event Location:Reims, Frankreich
Event Type:international Conference
Event Dates:24. - 26. Aug. 2016
Organizer:University Reims
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Spektrometrische Verfahren und Konzepte der Fernerkundung (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Experimental Methods
Deposited By: Wilzewski, Jonas
Deposited On:19 Sep 2016 14:19
Last Modified:31 Jul 2019 20:03

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