2026-06-03T14:31:38Zhttps://www.radar-service.eu/oai/OAIHandler

10.35097/wq583rnzpmd83m5g2026-02-23T14:26:38ZIMKradar4kit

10.35097/wq583rnzpmd83m5g Shahzadi, Kanwal Kanwal Shahzadi 0000-0001-6208-1844 Karlsruhe Institute of Technology (KIT) Schneider, Matthias Matthias Schneider 0000-0001-8452-0035 Karlsruhe Institute of Technology (KIT) Lo, Nga Ying Nga Ying Lo 0000-0002-3153-3219 Karlsruhe Institute of Technology (KIT) Borsdorff, Tobias Tobias Borsdorff 0000-0002-4421-0187 Netherlands Institute for Space Research (SRON) Institute of Meteorology and Climate Research, Atmospheric Trace Gases and Remote Sensing (IMKASF), Karlsruhe Institute of Technology (KIT) 2025 2026 Geological Science Atmosphere Remote Sensing, Satellite, Metop, IASI, Sentinel-5 Precursor, TROPOMI, Methane, synergy, data fusion Two example data file ('SYNERGY_IASIMUSICA_TROPOMIRemoTeC_CH4_v0401_20180101.nc' and 'SYNERGY_IASIMUSICA_TROPOMIRemoTeC_CH4_v0401_20180701.nc'), information for downloading the complete data set ('ReadMe.pdf') Open Access Creative Commons Attribution 4.0 International Kanwal Shahzadi Matthias Schneider Karlsruhe Institute of Technology (KIT) This version 4.1 MUSICA IASI / RemoTeC TROPOMI fused methane data set contains total (ground – top of atmosphere, variable <xch4>), tropospheric (ground – 50% ground pressure, variable <troxch4>), and UTS (upper tropospheric/ stratospheric, 50% ground pressure – top of atmosphere, 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 3.2 and 3.3, Schneider et al., 2022, https://doi.org/10.5194/essd-14-709-2022) and the level 2 XCH4 total columns by the RemoTeC processor (internal SRON version 19/0446, Lorente et al. 2022, https://doi.org/10.5194/amt-16-1597-2023). 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 the 42 months from January 2018 – June 2021. The characteristics of the data set is described in detail and recommendations about data usage are given in Shahzadi et al. 2026 (https://doi.org/10.5194/essd-2025-407, final version accepted in February 2026). The full data set consists of 1241 individual netcdf file (one file per day of observation). This data package contains two example files (for 1 January and 1 July 2018: "SYNERGY_IASIMUSICA_TROPOMIRemoTeC_CH4_v0401_20180101.nc" and "SYNERGY_IASIMUSICA_TROPOMIRemoTeC_CH4_v0401_20180701.nc") and gives information on the availability of the full data set ("ReadMe.pdf"). Metop IASI, Sentinel-5 Precursor TROPOMI en 10.5194/essd-2025-407 https://www.imkasf.kit.edu/english/CH4-synergy-IASI-TROPOMI_RemoTeC.php Karlsruhe Institute of Technology https://ror.org/04t3en479 UFOS Ministerium für Wissenschaft, Forschung und Kunst Baden-Württemberg 501100003542 HoreKa supercomputer Bundesministerium für Bildung und Forschung 501100002347 HoreKa supercomputer Helmholtz Metadata Collaboration https://ror.org/04v4h0v24 ZT-I-PF-3-043 Metamorphoses 181,7 MB application/x-tar