The graphs start from 1950 to show a full 66 year cycle of the PDO and AMO.
I’m graphing anomalies from the mean for all. Sea Ice is in millions of sq km.
PDO versus Arctic Extent – note that the satellite record for sea ice starts at peak of PDO
AMO versus Antarctic Extent
Now that NSIDC is publishing data again I thought I would post two graphs comparing JAXA MASIE and NSIDC.
I’m doing it for Arctic and Antarctic (but MASIE has no Antarctic data)
Normally in the Arctic JAXA and NSIDC are very close only at the minimum … but now they are very close.
And in the Antarctic they might as well be doing just one they overlap so much.
2012 was the lowest minimum sea ice according to most sea ice extent charts.
DMI is now showing 2016 crossing to be higher than 2012. JAXA doesn’t show this yet.
I was reading this article on Greenland melting. And then I read this:
Meier is (I assume) Walt Meier of the NSIDC.
Ok … so the satellite that was producing spurious massive jumps in Arctic/Antarctic Sea Ice is being used to confirm the melting of Greenland despite being told the satellite is broken.
Yup. Sounds typical.
On Monday and Tuesday, about 12 per cent of the ice sheet surface area — 656,000 square miles or 1.7 million square kilometers — showed signs of melting ice, according to Peter Langen, a climate scientist at the Danish Meteorological Institute.
This is the DMI graph of the arctic sea ice extent using data from the same satellite … I think.
Wait. This just in.(I’m flabbergasted).
Greenland Surface Melt dataset produced by:
DMSP 5D-2/F11, DMSP 5D-2/F13, DMSP 5D-2/F8, DMSP 5D-3/F17, NIMBUS-7
F17 is the satellite producing spurious sea ice data.
The 17th daily record for Antarctic Sea Ice Extent in 2014 was set yesterday on Feb 3 (Day 34).
The old record was broken by 290,000 sq km. Sea Ice is 980,000 sq km above the 1981-2010 mean. Thats 28.65%.
And WOW …. I know this is probably just an aberration (but it isn’t a normal time so who knows) but extent only fell 3230 sq km from day 33 to 34. Normally at this time of year extent falls around 40,000-100,000 sq km per day.
Caveat: the raw data has 0.00058 sq km in the missing column (which is usually 0). Not sure what that means, but that is only 580 sq km.
I’ve added the 2008 Highest Minimum point to this graph. Data is here. Click for bigger.
Antarctic Sea Ice Minimum Trend is climbing at 140,000 sq km per decade!
After declaring Antarctic had the 2nd highest minimum of all time I thought I should graph the trend.
Wow. At this rate Antarctic Sea Ice minimum will just keep growing and growing until you can’t get near Antarctica by ship at all! (probably not but it is fun to claim).