mamooth
Diamond Member
GFS Arctic 500mb height anomalies
This animation shows the current pattern of lows and highs. The interesting things are the semi-permanent blocking highs, one by south Greenland/Labrador and one in the Bering Sea. We'd get highs in those spots before, but they'd be temporary and move right along.
So, big melt around the edge, but the cloudy north pole core stays more intact. It's a mild negative feedback. It won't last forever, of course, in the face of steadily rising air and ocean temperatures.
This animation shows the current pattern of lows and highs. The interesting things are the semi-permanent blocking highs, one by south Greenland/Labrador and one in the Bering Sea. We'd get highs in those spots before, but they'd be temporary and move right along.
So, big melt around the edge, but the cloudy north pole core stays more intact. It's a mild negative feedback. It won't last forever, of course, in the face of steadily rising air and ocean temperatures.