#Comment: Taken from Lewis et al., Deep Sea Research II, 58(9-10), 2011, ERA v201606 noval gapfill, 20150918 AMSRX: closest in time inside km perimeter + timediff parameter, ASCAT: static grid fix #latitude,longitude,time,identification,Number of measurements ice freeboard,Mean ice freeboard (m),Ice freeboard standard deviation (m),Number of measurements snow,Mean snow depth (m),Snow depth standard deviation (m),Mean snow freeboard (m),Number of measurements ice,Mean ice thickness (m),Ice thickness standard deviation (m),Number of measurements air temperature,Mean 15m air temperature (C),Air temperature standard deviation (C),Number of measurements snow temperature,Mean snow surface temperature (C),Snow surface temperature standard deviation (C),Number of measurements snow-ice interface temperature,Mean snow-ice interface temperature (C),Snow-ice interface temperature standard deviation (C),Number of measurements snow density,Mean snow density (kg/m^3),Snow density standard deviation (kg/m^3),latitude,longitude,time,reference-id,upstreamfile,msl,u10,v10,ws,t2m,skt,istl1,istl2,istl3,istl4,sst,d2m,tcwv,tclw,tciw,ssrd,strd,e,tp,sf,fal,ci,latitude,longitude,time,identification,6.9H,6.9V,7.3H,7.3V,10.7H,10.7V,18.7H,18.7V,23.8H,23.8V,36.5H,36.5V,89.0H,89.0V,Earth_Incidence,Earth_Azimuth,scanpos,upstreamfile,timediff,latitude,longitude,time,reference-id,upstreamfile,sigma_40,sigma_40_mask,nb_samples,warning,std -70.408,-90.483,2007-09-26T16:52:00Z,IN_SITU_SIMBA,73,-0.08,0.05,81,0.53,0.11,0.45,17,1.70,0.74,10652,-1.93,0.58,25,-2.06,0.49,17,-2.09,0.21,16,375.0,50.7,-70.500,-090.750,2007-09-26T18:00:00Z,NWP_ECMWF,2007q3.nc, 955.1, -4.43, -5.67, 7.19, 270.07, 269.62, 269.25, 269.00, 269.26, 270.26, 271.46, 268.50, 6.0612, 0.00388, 0.074210, 127.78, 265.74, -0.042, 0.450, 0.3881, 0.6717, 0.8669,-70.408,-090.483,2007-09-26T16:52:00Z,AMSR_NSIDCWENTZ_V2, noval, noval, noval, noval, noval, noval, noval, noval, noval, noval, noval, noval, noval, noval, noval, noval, 000,AMSR_E_L2A_BrightnessTemperatures_V12_noval-filename.hdf, noval,-70.390,-090.500,2007-09-26T12:00:00Z,ASCAT_CERSAT_IFREMER,ASCAT_20070926.nc, -12.91712, -12.91712, 6, 0, 0.04177 -70.635,-90.736,2007-09-27T04:55:00Z,IN_SITU_SIMBA,25,-0.03,0.02,101,0.17,0.05,0.14,21,0.67,0.12,10650,-3.80,0.10,16,-2.87,0.86,21,-3.10,0.22,6,300.0,43.7,-70.500,-090.750,2007-09-27T06:00:00Z,NWP_ECMWF,2007q3.nc, 964.3, -2.62, -4.43, 5.15, 268.69, 268.14, 267.80, 268.60, 269.30, 270.33, 271.46, 267.29, 5.6149, 0.00638, 0.088378, 0.00, 271.55, -0.011, 0.487, 0.4509, 0.6717, 0.8669,-70.591,-090.712,2007-09-27T05:34:12Z,AMSR_NSIDCWENTZ_V2, 224.35, 256.33, noval, noval, 219.28, 255.26, 210.79, 248.83, 208.65, 245.01, 197.42, 232.68, 205.30, 223.57, 55.415, -133.490, 096,AMSR_E_L2A_BrightnessTemperatures_V12_200709270449_D.hdf, 2352,-70.610,-090.840,2007-09-27T12:00:00Z,ASCAT_CERSAT_IFREMER,ASCAT_20070927.nc, -13.67628, -13.67628, 6, 0, 0.06908