These observations was originally funded through IPY projects (iAOOS-Norway and IPYTHORPEX), they are now maintained by the Norwegian Meteorological Institute. The observations at Bjørnøya started April 2008, Jan Mayen October 2008 and Hopen is scheduled 2009.
Data are freely available, but as of mid 2016, the data stream is under reimplementation. Information will be updated when new end points are available.
Downward broadband shortwave and longwave radiance at the surface is measured using Kipp and Zonen CMP21 and CGR4 sensors. Data are transmitted in real time to Oslo, Norway for quality control and reformatting into NetCDF/CF. Instruments are located at the Arctic meteorological stations operated by METNO and the radiance values can be collocated with standard synoptic weather measurements.
Norwegian Metereological Institute (METNO)
EUMETSAT Ocean and Sea Ice SAF (http://osisaf.met.no).