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A decade of GOSAT Proxy satellite CH$_{4}$ observations

Parker, Robert J.; Webb, Alex; Boesch, Hartmut; Somkuti, Peter; Barrio Guillo, Rocio; Di Noia, Antonio; Kalaitzi, Nikoleta; Anand, Jasdeep S.; Bergamaschi, Peter; Chevallier, Frederic; Palmer, Paul I.; Feng, Liang; Deutscher, Nicholas M.; Feist, Dietrich G.; Griffith, David W. T.; Hase, Frank; Kivi, Rigel; Morino, Isamu; Notholt, Justus; Oh, Young-Suk; ... mehr

Abstract:
This work presents the latest release (v9.0) of the University of Leicester GOSAT Proxy XCH4 dataset. Since the launch of the GOSAT satellite in 2009, these data have been produced by the UK National Centre for Earth Observation (NCEO) as part of the ESA Greenhouse Gas Climate Change Initiative (GHG-CCI) and Copernicus Climate Change Services (C3S) projects. With now over a decade of observations, we outline the many scientific studies achieved using past versions of these data in order to highlight how this latest version may be used in the future.

We describe in detail how the data are generated, providing information and statistics for the entire processing chain from the L1B spectral data through to the final quality-filtered column-averaged dry-air mole fraction (XCH4) data. We show that out of the 19.5 million observations made between April 2009 and December 2019, we determine that 7.3 million of these are sufficiently cloud-free (37.6 %) to process further and ultimately obtain 4.6 million (23.5 %) high-quality XCH4 observations. We separate these totals by observation mode (land and ocean sun glint) and by month, to provide data users with the expected data coverage, including highlighting periods with reduced observations due to instrumental issues.
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Verlagsausgabe §
DOI: 10.5445/IR/1000127780
Veröffentlicht am 11.03.2021
Originalveröffentlichung
DOI: 10.5194/essd-12-3383-2020
Dimensions
Zitationen: 17
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung - Atmosphärische Umweltforschung (IMK-IFU)
Institut für Meteorologie und Klimaforschung - Atmosphärische Spurenstoffe und Fernerkundung (IMK-ASF)
KIT-Zentrum Klima und Umwelt (ZKU)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2020
Sprache Englisch
Identifikator ISSN: 1866-3516
KITopen-ID: 1000127780
HGF-Programm 12.03.01 (POF III, LK 01) Long term observations of tropospheric
Erschienen in Earth system science data
Verlag Copernicus Publications
Band 12
Heft 4
Seiten 3383–3412
Vorab online veröffentlicht am 14.12.2020
Nachgewiesen in Dimensions
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