| Summary: | Total ozone column (TOC) and effective cloud transmittance (eCLT) from GUV-511 in Oslo (Norway), GUV-541 from Andøya/Tromsø (Norway), and GUV-541 from Ny-Ålesund (Svalbard, Norway). Responsible institute: NILU - Norwegian Institute for Air Research Collaborative institute: Norwegian Radiation and Nuclear Safety Authority, DSA Method described in: Dahlback,A. (1996),Measurements of biologically effective UV doses, total ozone abundances, and cloud effects with multichannel, moderate bandwidth filter instruments, Appl. Opt. 35, 6514–6521 1h average noon-time values, based on data with 1-minute time resolution. TOC retrievals from 305/320 nm channel ratio eCLT retrievals from 340 nm channel Calibrations based on the FARIN2005-campaign and annual site visits with a travelling reference GUV instrument from DSA (https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2007JD009731) Funding: NILU - Norwegian Institute for Air Research, Norwegian Environment Agency, Norwegian Ministry of health and Care Services
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