FRM4GHG level2 dataset from the Sodankylä campaign

The dataset contains Level2 data from 5 participating remote sensing instruments, namely: * Bruker IFS 125HR – operated by Finnish Meteorological Institute (FMI, Finland), * Bruker Vertex 70 – operated by Royal Belgian Institute for Space Aeronomy (BIRA-IASB, Belgium) and University of Bremen (Uni. Bremen, Germany), * Bruker EM27/SUN – operated by Karlsruhe Institute of Technology (KIT, Germany), * Bruker IR Cube – operated by University of Wollongong (Uni. Wollongong, Australia), * Laser Heterodyne Radiometer (LHR) – operated by Rutherford Appleton Laboratory (RAL, United Kingdom), and an in-situ instrument namely: * AirCore – operated by University of Groningen (Uni. Groningen, The Netherlands) and Finnish Meteorological Institute (FMI, Finland). At a minimum of 2 months prior to publication or presentation of works that include FRM4GHG data, please, contact the authors and provide a description of the intended publication or presentation. If any of the FRM4GHG partners makes a significant intellectual contribution to the research, or if FRM4GHG data is essential to the work, co-authorship of the FRM4GHG consortium would normally be expected. This should be discussed at an early stage in the work. If none of the FRM4GHG partners responds after 3 emails distributed over a 2-months period, the data are licensed under a cc-by 4.0 license.