Fig. 2
From: Global view of sea-ice production in polynyas and its linkage to dense/bottom water formation
Map of coastal polynyas and landfast sea ice in the Southern Hemisphere. The calculation is based on thin-ice thickness and fast ice detection algorithms of AMSR-E (Nihashi and Ohshima 2015). Frequency of occurrence during the freezing period (March–October) for the period of 2003–11 (March–September only for 2011) is shown by color shadings. The Antarctic continent and islands are indicated by gray, and ice shelves and glacier tongues are indicated by light gray