This dataset contains radiometric data over the Kuparuk River basin on the North Slope of Alaska collected using the National Oceanic and Atmospheric Administration (NOAA) Long-EZ and Cessna 206 light aircraft during the summer of 1996,. The area covered runs from north to south along the 148 degrees 55 minutes and 149 degrees 30 minutes lines of west longitude from approximately the Arctic Ocean (70.5 degrees N) to the foothills of the Alaskan Brooks Range (68.5 degrees N). Reflected spectral radiance was measured using an Exotech Model 100A Four Channel Radiometer, and recorded at 1 second intervals (1Hz) as digital counts (NOAA Long-EZ) or analog voltages (Cessna 206). The digital counts were converted to voltages, and then all voltages were converted to radiance values. The data files are in tab-delimited format.