As reported previously, Arctic ice extents are solid in most seas, but continue to fluctuate at the margins. Notably in 2022, ice extents broke the 15M km2 threshold on Feb. 28, whereas the 16-year average falls short of that even in March. It also exceeds the 2021 annual March maximum by 175k km2.
Note the much higher extent this year: 160k km2 greater than the average, and 342k km2 more than 2021. Somehow SII (Sea Ice Index) lost 200k km2 in the last 3 days.
The table below shows ice extents in the seas comprising the Arctic, comparing 2022 day 059 with the same day average over the last 16 years and with 2021.
|Region||2022059||Day 59 Average||2022-Ave.||2021059||2022-2021|
The table shows that 2022 ice extent exceeds 2021 by 342k km2 at this date. Surpluses are sizeable in Baffin and Barents, more than offsetting an Okhotsk deficit.
The next two weeks will be interesting. The average year in the last sixteen gained about 100k km2 from now to mid March. But the variability ranged from 2015 losing 300K while some other years gained 400k km2. And since 2016, only 2020 broke the 15M km2 ceiling. What will the ice do this year?
Reblogged this on Climate Collections.
That meme!! Is that a typo or did Polar Bears become greater in numbers instead of declining?
all too true, yumi. Details here:
LikeLiked by 1 person