Arctic sea ice volume meltdown

Arctic sea ice volume meltdown has come 14% of the way from Winter Maximum to a Blue Ocean Event per June 2nd. The lowest volume year ever, 2017, for comparison, was at 15%.

Q: Where’s the data source for this plot?
A: Here: http://psc.apl.uw.edu/research/projects/arctic-sea-ice-volume-anomaly/data/
Q: How can anyone know if there is a Blue Ocean Event?
A: Easy. Use a computer. If you have less than 1000 km³ sea ice volume in the Arctic, then you have a Blue Ocean Event.
Q: Why would I even do that?
A: Let’s say you want to know when the Arctic Ocean goes ice–free. Basing this on satellite measurements instead of gut feeling makes your conversations more interesting.

Arctic sea ice extent meltdown

Arctic sea ice extent meltdown has come 27% of the way from Winter Maximum to a Blue Ocean Event per June 1st. The lowest extent year ever, 2016, for comparison, was also at 27%.

Q: Where’s the data source for this plot?
A: Here: https://ads.nipr.ac.jp/vishop/#/extent
Q: How can anyone know if there is a Blue Ocean Event?
A: Easy. Use a computer. If you have less than 1 million km² sea ice extent in the Arctic, then you have a Blue Ocean Event.
Q: Why would I even do that?
A: Let’s say you want to know when the Arctic Ocean goes ice–free. Basing this on satellite measurements instead of gut feeling makes your conversations more interesting.

½ Year Arctic Blue Ocean Estimates

#GoodHopeModel May 31: Our first ½ year long Arctic Blue Ocean Event could come as early as 2023–36. No sea ice for 6 months, in as little as 4–17 years?

The Good Hope Model, explained further in the YouTube below, has recently gone through quality control updates & control calculations (which you should ALWAYS do to check that your math is right). Instead of trying to build a huge model of the entire planet inside a computer, the Good Hope Model applies 40 years of already registered ice data, or what has already happened, and looks at how rapidly we have been losing ice. Different long & short averages of this decline provide different estimates for the disappearance of Arctic sea ice for 6 consecutive months.

Q: Where’s the data source for this plot?
A: Here: http://psc.apl.uw.edu/research/projects/arctic-sea-ice-volume-anomaly/data/

You can learn more about the Good Hope Model on YouTube: