On hot days like these an old man’s thoughts turn to the eternal mysteries of sea ice. Someone – it might have been CR – drew my attention to PIOMAS a week or two back; but I can’t find whatever was said now, so I’ll look for myself. Before looking at the sea ice, I found the temperature anomaly, which is rather interesting.
So having been ridiculously warm all winter, suddenly we’re back to normal, or a fraction below. This is Daily Mean Temperatures North of 80 degree North, red is the operational model, the green average is reanalysis. Arguably there’s a degree of pining-to-zero around now, but there wasn’t around day 140 when it was clearly below average.
Greenland melt index shows something similar. Anyway, having seen the temperature let’s move on to ice extent. Uni Bremen sea ice extent; I would stay faithful to Jaxa but their server seems slow today.
So, meh, it is low but not lowest. It clearly won’t be a good year but it is unlikely to be a disastrous one. I doubt anything is more bettable than it was in May.
And lastly the PIOMAS ice volume which could be considered the reason for this post, since we’re just about crossing from record lows into no-longer-a-record. Again, the obvious but uninteresting projection is low but not a record.
Has anyone else had anything interesting to say about sea ice for a while? If they had, I’ve missed it.