Wednesday, 25 October 2017

Arctic sea ice

We have the 2nd lowest icce volume for this time of year.

Arctic Sea ice - 10/24/2017

No automatic alt text available.
For the geeks, these are the best figures we get for daily ice.
Daily volume: 5,800 km³ (2nd lowest for the date) Δ +5/day
+221/week, +1082/month, –224/year, +36/5year (+0.6%)
Daily extent: 7,307,330 km² (5th lowest for the date) Δ +33k/day
+718k/week, +2603k/month, +705k/year, +270k/5year (+3.8%)

2017 volume maximum 20,756 km³ on April 18th (*lowest*)
2017 volume minimum 4,539 km³ on September 11th (4th lowest)
2017 extent maximum 13,878,287 km² on March 6th (*lowest*)
2017 extent minimum 4,472,225 km² on September 9th (6th lowest)
However, the above daily numbers carry a taste of 🍒. If you don’t want to cherry–pick your data to make a point, you may want to look at the latest, updated, running annual average. The ice, after all, has to be out there and survive those waves 24/7, 365 days of the year.
Annual volume: 12,598 km³ (*record* low) Δ –0.6/day
–0.4/week, +17/month, –1,464/year, –1,085/5year (–7.9%)
Annual extent: 9,850,073 km² (*record* low) Δ +1.93k/day
+16k/week, +38k/month, –26k/year, –159k/5year (–1.6%)
Source: JAXA / PIOMAS (app estimate) for October 24th 2017.

1 comment: