Folders “winter_2019” and “spring_2019” contain the matrixes of surface temperature for every measurement session. The format of the folder is: yyyymmdd_HHMM_x. The format of the matrix is out_yyyymmdd_HHMM_x, where x is the number of the sequence. The excel file “energy_fluxes_winter_spring_2019” contains the mean of the energy fluxes estimations for every measurement session where: day = date of measurements (mm/dd/yyyy) h = UCT time of measurements (HH:MM) lon = ship longitude lat = ship latitude sea_condition = ocean and sea ice conditions Qs = short-wave radiation (Wm-2) Qb = long-wave radiation (Wm-2) Qe = latent flux (Wm-2) Qh = sensible flux (Wm-2) QT = total surface heat budget (Wm-2) The excel file “surface_variables_winter_spring_2019” contains the mean values of surface temperature and ice concentration where: day = date of measurements (mm/dd/yyyy) h = UCT time of measurements (HH:MM) lon = ship longitude lat = ship latitude sea_condition = ocean and sea ice conditions skin_temp = skin surface temperature (°C) Ci = ice concentration (fraction) PAR = Photosynthetically active radiation (nanometers) T_air_C = air temperature (°C) e = water vapor pressure (kPa) wind_speed = wind speed qs = saturated specific humidity (g/kg) qa = specific humidity (g/kg)