Arctic Sea Ice Volume

Daily Arctic sea ice volume is now 5th lowest, the 2019 Melt Season average also remains 5th. 2017 is the lowest year on record for volume, you see how much lower than #2–5. Ten–Year Trend though, is still very stubborn.

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 make a decadal average graph?
A: Easy. Use a computer. Add all the ice for the latest 3650 days, divide by that number of days.
Q: Why would I even do that?
A: Let’s say you want to know how much ice we have in the latest decade compared to the decades before that.

Year-To-Date Average Sea Ice Volume

The Year–To–Date average volume is still 6th lowest for sea ice in the Arctic. Next target is 2013.

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 make a year-to-date average graph?
A: Easy. Use a computer. Add all the ice for every day so far this year, divide by the number of days.
Q: Why would I even do that?
A: Let’s say you want to know how much ice we have in 2019 compared to other years.

Year-To-Date Average Sea Ice Extent

The Year–To–Date average extent is still 4th lowest for sea ice in the Arctic. So, all 4 lowest years are also the 4 latest years: 2016, 2017, 2018 & 2019. Next target is 2017.

Q: Where’s the data source for this plot?
A: Here: https://ads.nipr.ac.jp/vishop/#/extent
Q: How can anyone make a year-to-date average graph?
A: Easy. Use a computer. Add all the ice for every day so far this year, divide by the number of days.
Q: Why would I even do that?
A: Let’s say you want to know how much ice we have in 2019 compared to other years.

Annual Average Sea Ice Volume

In early March we went beyond the 14 mark for the first time since November 2016, by averaging higher than 14 thousand km³ sea ice volume. Now the 365–day running average for sea ice volume has flatlined, and we’ll see by Solstice if it goes up or down.

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 make an annual average graph?
A: Easy. Use a computer. Add all the ice for the latest 365 days, divide by that number of days.
Q: Why would I even do that?
A: Let’s say you want to know how much ice we have in 2019 compared to other years.

Annual Average Sea Ice Extent

The 365–day running average for sea ice extent is lower than 9.99 million km² and dropping by about 12 thousand km² per month. The light–green confidence interval suggests 2019 might go lowest on record for all–year average.

Q: Where’s the data source for this plot?
A: Here: https://ads.nipr.ac.jp/vishop/#/extent
Q: How can anyone make an annual average graph?
A: Easy. Use a computer. Add all the ice for the latest 365 days, divide by that number of days.
Q: Why would I even do that?
A: Let’s say you want to know how much ice we have in 2019 compared to other years.

Arctic sea ice volume meltdown

Arctic sea ice volume meltdown has come 8% of the way from Winter Maximum to a Blue Ocean Event per May 25th. The lowest volume year ever, 2017, for comparison, was at 9%.

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 about ¼ of the way from Winter Maximum to a Blue Ocean Event.

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 23: 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:

Arctic Sea Ice Volume

Daily Arctic sea ice volume is now 4th lowest, the 2019 Melt Season average remains 5th. 2017 is the lowest year on record for volume, you see how much lower than #2–5. Ten–Year Trend though, is still very stubborn.

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 make a decadal average graph?
A: Easy. Use a computer. Add all the ice for the latest 3650 days, divide by that number of days.
Q: Why would I even do that?
A: Let’s say you want to know how much ice we have in the latest decade compared to the decades before that.