It is still quite cold in the Arctic, with below normal air temperatures and sea surface temperatures surrounding the ice pack between around 2-4°C. Much of that has to do with meltwater. I’ve added this image to our new WUWT Sea Ice Page tonight.
But looking at another product from the Danish Meteorological Institute (DMI) there’s an indication of even colder temperatures, now hitting the freezing line in the middle of the Arctic summer.
While this most certainly could be a temporary blip, it seems the temperature in the arctic above 80°N as calculated by DMI has steadily declined and hit 0°C a bit early (just past midway) in the Arctic melt season.
See the graph below:
Here’s the 3x magnified view of the top of the graph:
Much of the melt season so far has been below the green “normal climate” line. While it is just another data point (i.e. weather) , it is a curious and interesting development worth watching. The past few days melt has been accelerating, a bit, but with a dropping Arctic core temperature it would seem to suggest perhaps this is limited to some traditional melt zones for this time of year, such as near the Chukchi sea.
Look for more in WUWT Sea Ice News #15 this weekend.
h/t to WUWT reader phlogiston