arctic_sea_ice_october.pdf
HadISST1.2 dataset. 1 This is the 3 rd lowest September extent recorded in the era of satellite observations of sea ice, after 2012 and 2007. It falls very near the longterm linear trend (Figure 1), and is also very close to the September extents recorded in 2011 and 2015. 2 Figure 1: September sea