The animation shows Arctic ice extents on day 151 (end of May) from 2006 to yesterday 2022. It is evident that typically there are some regional seas starting to melt by this date, whereas 2022 remains frozen solid. More detailed analysis is below, but note the 2022 surplus is 600k km2, or 5% above the 16 year average for day 151. That extra ice extent amounts to 0.6 Wadhams, or 6826 Manhattan Islands, whichever index you prefer. The graph below shows May 2022 daily ice extents compared to the 16-year average and some other years of note.
The black line shows during May on average Arctic ice extents decline ~1.8M km2 down to 11.7M km2. The 2022 cyan MASIE line only lost 1.3M km2, starting the month 141k km2 above average and on day 151 showed a surplus of 598k km2. The Sea Ice Index in orange (SII from NOAA)…
June 1, 2022 at 05:46PM