Figure 3
From: A Study of the North Water Polynya Ice Arch using Four Decades of Satellite Data

An example of the formation and breakdown of the southern ice arch using Advanced Very High Resolution Radiometer thermal infrared imagery. (a) On 04 January 1979 the characteristic shape of the southern ice arch is established for the season as verified in the 31 January 1979 image. (b) The break down of the southern ice in 2016 using visible wavelengths. The characteristic shape for the season as seen of 05 January 2016 collapses on 07 July 2016. (Images created with Harris Geospatial ENVI 5.3 software, http://www.harrisgeospatial.com).