2026-04-20T18:14:59Zhttps://www.radar-service.eu/oai/OAIHandler

10.35097/6902025-10-21T06:06:09ZIMKradar4kit

10.35097/690 Schneider, Matthias Matthias Schneider 0000-0001-8452-0035 Karlsruhe Institute of Technology (KIT) Ertl, Benjamin Benjamin Ertl 0000-0003-1431-2243 Karlsruhe Institute of Technology (KIT) Institute of Meteorology and Climate Research, Atmospheric Trace Gases and Remote Sensing (IMK-ASF), Karlsruhe Institute of Technology (KIT) 2022 2022 Geological Science Atmosphere Remote Sensing, Satellite, Metop, IASI, Sentinel-5 Precursor, TROPOMI, methane, CH4, total column, troposphere, UTLS, data fusion Open Access Creative Commons Attribution 4.0 International Matthias Schneider Benjamin Ertl Karlsruhe Institute of Technology (KIT) This version 2.0 MUSICA IASI / RemoTeC TROPOMI fused methane data set contains total (ground – top of atmosphere, variable <xch4>), tropospheric (ground – about 6 km a.s.l., variable <troxch4>), and UTLS (upper tropospheric/lower stratospheric, about 6 – 20 km a.s.l., variable <utsxch4>) column-averaged dry-air mole fractions of methane (CH4). The data are obtained by combining the level 2 CH4 profiles and XCH4 total columns (generated from the IASI TIR spectra and the TROPOMI NIR/SWIR spectra, respectively). The level 2 CH4 profiles were generated by the MUSICA processor (version 3.3.0) and the level 2 XCH4 total columns by the RemoTeC processor (operational processing algorithm version 2.3.1, this version includes data over ocean in glint mode). The combination is realized by means of a Kalman filter that uses the MUSICA IASI data as the background and the TROPOMI data as the new observation. Details of the combination method, the IASI and TROPOMI collocation requirements, and the data quality are described in Schneider et al. (2022, https://doi.org/10.5194/amt-15-4339-2022). The data cover an example period for northern hemispheric winter and summer conditions (01 January – 30 January 2020 and 01 July – 30 July 2020, respectively). The only difference of this version 2.0 to the version 1.0 of the fused MUSICA IASI / RemoTeC TROPOMI data set (accessible at https://doi.org/10.35097/689) is the use of TROPOMI RemoTeC operational processing version 2.3.1 (instead of version 2.2.0), which offers among others additional data availability over ocean. Metop IASI and Sentinel-5 Precursor TROPOMI The data fusion method is described in detail in Schneider et al. (2022, https://doi.org/10.5194/amt-15-4339-2022). The used the RemoTeC TROPOMI XCH4 data (operational processing algorithm version 2.3.1) are described in Lorente et al. (2022, https://doi.org/10.5194/amt-2022-197). The used MUSICA IASI CH4 profile data (processing version 3.3.0) are described in Schneider et al. (2022, https://doi.org/10.5194/essd-14-709-2022). en Deutsche Forschungsgemeinschaft 501100001659 290612604 MOTIV Deutsche Forschungsgemeinschaft 501100001659 416767181 TEDDY European Research Council 501100000781 ERC Grant Agreement number 256961 MUSICA Ministerio de Economía y Competitividad 501100003329 CGL2016-80688-P INMENSE Ministerium für Wissenschaft, Forschung und Kunst Baden-Württemberg 501100003542 ForHLR supercomputer Bundesministerium für Bildung und Forschung 501100002347 ForHLR supercomputer Dutch National e-Infrastructure with the support of the SURF cooperative SURF cooperative 12,0 GB application/x-tar