Tag: Arctic

Sea Ice Extent (Global Antarctic and Arctic) – Day 285 – 2017

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I hadn’t noticed, but Antarctica on day 281 to 285 was back within one standard deviation for the first time in 1.5 months.

 

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Sea Ice Extent (Global Antarctic and Arctic) – Day 281 – 2017

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A late surge in Antarctica means 2017 won’t be the lowest maximum. That honor stays with 1986.

These are the Antarctica records for max and min sorted by max descending.

(Preliminary for 2017 because it may climb some more)

Year Min Max day Max day Min Avg Anomaly
2014 3.548 20.201 263 52 1.146198915341
2013 3.679 19.608 274 50 0.893678367396
2012 3.111 19.478 266 54 0.387147239929
2006 2.487 19.36 264 51 -0.169014783289
2009 2.671 19.299 267 53 0.418664668766
2005 2.804 19.295 272 49 0.064952339999
1998 2.772 19.244 258 56 0.108445490684
2000 2.582 19.159 272 49 0.129936857415
2004 3.259 19.124 252 51 0.344207349218
1980 2.521 19.092 267 57 -0.380114783289
2007 2.723 19.086 272 50 0.057179737259
2010 2.842 18.998 249 47 0.476864668766
1999 2.707 18.981 273 51 0.130755079725
2011 2.319 18.954 266 53 -0.129354509316
1985 2.602 18.931 254 50 -0.009151681391
2015 3.544 18.912 275 49 0.784128253241
1981 2.694 18.856 261 51 -0.200536701097
1996 2.597 18.831 267 56 0.151838496759
1994 3.083 18.827 243 43 0.144042750958
1983 2.843 18.811 263 55 -0.247642180549
1997 2.264 18.792 265 58 -0.239875057261
1988 2.639 18.785 277 55 -0.119385162225
1995 3.33 18.762 269 55 0.164829052328
1993 2.281 18.71 263 50 -0.209987386028
2003 3.626 18.68 268 48 0.339360559177
1991 2.554 18.671 273 58 -0.085053139453
1982 2.89 18.55 246 54 0.016407547259
1987 3.01 18.524 258 52 -0.184921590324
2016 2.578 18.518 241 48 -0.46177898958
2001 3.441 18.494 271 50 0.042697545478
1992 2.492 18.467 255 54 -0.218672432202
1990 2.784 18.379 273 53 -0.220332591508
1984 2.382 18.37 266 58 -0.168233781332
1979 2.911 18.361 256 48 0.078581100978
2008 3.692 18.298 247 51 0.622117185284
1989 2.723 18.274 266 51 -0.204247660001
2002 2.697 18.116 252 51 -0.408318892878
2017 2.075 18.06 281 60
1986 2.953 18.027 261 65 -0.548503824385

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Sea Ice Extent (Global Antarctic and Arctic) – Day 280 – 2017

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Antarctica is still climbing (a little). 19,000 sq km more and it won’t set a record for lowest maximum.

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Sea Ice Extent (Global Antarctic and Arctic) – Day 277 – 2017

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2017 is on track for the lowest Antarctic maximum. But there is a bit of a late surge.

It is unlikely that another 79,000 sq km of ice will appear. But you never know.

 

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Antarctica – Return to mid-70s conditions?

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Cycles.

After 40 years, a large ice-free area appears again in the Southern Ocean in mid-winter

US-American scientists have calculated that the Weddell Polynya would probably not occur again because of climate change.

Higher precipitation levels in the region and melting ice would decouple the surface from the deeper water layers.

However, in several studies applying the “Kiel Climate Model” and other computer models, the research group in Kiel described the polynya as part of long-term natural variability, which would occur again sooner or later. “The fact that now a large, ice-free area can be observed in the Weddell Sea confirms our theory and gives us another data point for further model studies,” says Dr. Martin.

https://www.sciencedaily.com/releases/2017/09/170929093337.htm

 

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