Greenland 2013 melt is over the hill

While average sea ice minimum occurs in September, the Greenland ice albedo minimum occurs in July. This year, the albedo minimum occurred 31 July, coinciding with a record setting warm episode.

By 9 August, fresh snowfall concentrated along the southeastern ice sheet brought up the ice sheet albedo.

Across the northwestern ice sheet, melting increased the first 10 days of August, darkening the surface from a brighter than normal pattern associated with abnormally large snow accumulation that made difficult the Japanese SIGMA expedition.

Ice sheet albedo remains anomalously low along the western upper ablation area. The most persistent low albedo this melt season has been along the northwest, in the vicinity of Storstrømmen glacier.

Heat transport into the Arctic bypassed Greenland to it’s east. Svalbard has had a warm summer.

A reliable feature of climate is the poleward transport of heat in the atmosphere (and ocean) and the main contuit into the Arctic is the North Atlantic. So, what we see in this figure is normal and Greenland just didn’t get much exposure to this warm air stream (marked with up-pointing purple arrows). This extra heat bypassed Greenland much of this summer.