In this work taking the advantage of high resolution spaceborne synthetic aperture radar (SAR) measurements we present first preliminary results of short-period internal waves (IW) observations in the Barents, Kara and White seas based on ENVISAT ASAR data for summer-autumn months in 2007-2011. Altogether more than 2000 IW packets were identified in about 1400 SAR images. Detailed maps of internal wave's occurrences in the three Arctic seas have helped to identify main sites of regular IW generation.