Judul : Arctic Sea Ice Break Up August 2017
link : Arctic Sea Ice Break Up August 2017
Arctic Sea Ice Break Up August 2017
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| Sun at 8:00 am, captured by Jim Reeve on August 7, 2017 near Sechelt AirPort, B.C., Canada |
As the image below shows, it was as hot as 94°F or 34.5°C in North Canada on August 13, 2017 (at the green circle, at 1000 hPa, at 00:00 UTC). Temperatures at surface level were as high as 33.1°C or 91.5°F at that location, where wind was coming from the south and blowing toward the north at a speed of 28 km/h or 17 mph at that time.
Above image shows cyclonic winds over the Arctic Ocean pulling warm air from North Canada over the Arctic Ocean, while pushing cold air out. Winds and rain have been battering the sea ice for some time now, as discussed in an earlier post.
Fires are becoming more devastating, as discussed in an earlier post. The August 2, 2017, satellite image below shows smoke from fires in British Columbia blanketing Vancouver and Seattle. Carbon dioxide (CO₂) levels were as high as 527 ppm, carbon monoxide (CO) levels as high as 12.59 ppm and sulfur dioxide (SO₂) levels as high as 490.77 µg/m³, as these images show.
The image below, by Harold Hensel, shows smoke over British Columbia, Washington, and Montana.
Winds can carry smoke from forest fires over long distances, all the way to the Arctic sea ice, where the soot can settle and darken the ice, thus speeding up its decline. The image below, also by Harold Hensel, shows smoke from fires in Russia entering the Arctic Ocean near the Laptev Sea.
The thickest sea ice in the Arctic Ocean is located close to the north of Greenland and the Canadian Archipelago. This ice is now breaking up, due to high temperatures and strong cyclonic winds that cause warm rain, high waves and strong sea currents.
Watch the thickest sea ice break up on the animation below. This is a 17 MB file, so it may take some time to fully load. Click here if you do not see the file appear below.
The animation below shows the thickest sea ice breaking up between July 14, 2017, and August 13, 2017.
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| [ click on image to enlarge ] |
The situation is dire and calls for comprehensive and effective action, as described at the Climate Plan.
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