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Validation of methane and carbon monoxide from Sentinel-5 Precursor using TCCON and NDACC-IRWG stations

Sha, Mahesh Kumar; Langerock, Bavo; Blavier, Jean-François L.; Blumenstock, Thomas ORCID iD icon 1; Borsdorff, Tobias; Buschmann, Matthias; Dehn, Angelika; De Mazière, Martine; Deutscher, Nicholas M.; Feist, Dietrich G.; García, Omaira E.; Griffith, David W. T.; Grutter, Michel; Hannigan, James W.; Hase, Frank 1; Heikkinen, Pauli; Hermans, Christian; Iraci, Laura T.; Jeseck, Pascal; ... mehr

Abstract (englisch):

The Sentinel-5 Precursor (S5P) mission with the TROPOspheric Monitoring Instrument (TROPOMI) on board has been measuring solar radiation backscattered by the Earth's atmosphere and surface since its launch on 13 October 2017. In this paper, we present for the first time the S5P operational methane (CH4) and carbon monoxide (CO) products' validation results covering a period of about 3 years using global Total Carbon Column Observing Network (TCCON) and Infrared Working Group of the Network for the Detection of Atmospheric Composition Change (NDACC-IRWG) network data, accounting for a priori alignment and smoothing uncertainties in the validation, and testing the sensitivity of validation results towards the application of advanced co-location criteria. We found that the S5P standard and bias-corrected CH4 data over land surface for the recommended quality filtering fulfil the mission requirements. The systematic difference of the bias-corrected total column-averaged dry air mole fraction of methane (XCH4) data with respect to TCCON data is −0.26±0.56 % in comparison to −0.68±0.74 % for the standard XCH4 data, with a correlation of 0.6 for most stations. ... mehr

Verlagsausgabe §
DOI: 10.5445/IR/1000138282
Veröffentlicht am 29.09.2021
DOI: 10.5194/amt-14-6249-2021
Zitationen: 27
Web of Science
Zitationen: 27
Zitationen: 28
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung – Atmosphärische Spurenstoffe und Fernerkundung (IMK-ASF)
Institut für Meteorologie und Klimaforschung – Atmosphärische Umweltforschung (IMK-IFU)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 1867-8548
KITopen-ID: 1000138282
HGF-Programm 12.11.13 (POF IV, LK 01) Long-term trends of global atmospheric composition
Erschienen in Atmospheric measurement techniques
Verlag Copernicus Publications
Band 14
Heft 9
Seiten 6249–6304
Vorab online veröffentlicht am 28.09.2021
Nachgewiesen in Web of Science
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