Category: Global Sea Ice

Sea Ice Update March 3rd 2014 – Antarctic Sea Ice Extent 23% above normal

Published on by sunshinehours11 Comment

A quick update for sea ice extent:

  • Global Sea Ice is only 77,000 sq km below the 1981-2010 mean.  That is 0.4% below the mean. Global Sea Ice has been within one standard deviation of the 1981-2010 mean since July 25 2013
  • Antarctic Sea Ice is  704,000 sq km above the 1981-2010 mean. That is 22.9% above the mean.  Day 51 was the 4th highest minimum. Nov 20 2011 was the last time Antarctic Sea Ice was below one standard deviation.
  • Arctic Sea Ice is 781,000 sq km below the 1981-2010 mean.  That is 5% below the mean .

Data here. Graphs below. Click for bigger.

Global_Sea_Ice_Extent_Zoomed_2014_Day_61_1981-2010

Antarctic_Sea_Ice_Extent_Zoomed_2014_Day_61_1981-2010

Arctic_Sea_Ice_Extent_Zoomed_2014_Day_61_1981-2010

Sea Ice Update February 28 2014 – Antarctic Sea Ice Extent 24% above normal

Published on by sunshinehours12 Comments

A quick update for sea ice extent:

  • Global Sea Ice is only 50,000 sq km below the 1981-2010 mean.  That is 0.3% below the mean.
  • Antarctic Sea Ice is  720,000 sq km above the 1981-2010 mean. That is 24% above the mean.  I’m pretty sure day 51 was minimum. Extent is 170,000 above what it was on Day 51. That would be the 4th highest minimum of all time!
  • Arctic Sea Ice is 769,000 sq km below the 1981-2010 mean.  That is 5% below the mean .

Data here. Graphs below. Click for bigger.

Global_Sea_Ice_Extent_Zoomed_2014_Day_58_1981-2010 Antarctic_Sea_Ice_Extent_Zoomed_2014_Day_58_1981-2010 Arctic_Sea_Ice_Extent_Zoomed_2014_Day_58_1981-2010

Sea Ice Update February 22 2014 – Antarctic Sea Ice Extent Still 22.5% Above The Mean

Published on by sunshinehours11 Comment

A quick update for sea ice extent:

  • Global Sea Ice is 98,000 sq km below the 1981-2010 mean.  That is 0.54% below the mean. Daring to use an unpopular word, Global Sea Ice Extent is normal.
  • Antarctic Sea Ice is  647,000 sq km above the 1981-2010 mean. That is 22.5% above the mean.  Antarctic Sea Ice Extent rose 13,500 sq km in the last day.
  • Arctic Sea Ice is 745,000 sq km below the 1981-2010 mean.  That is 4.86% below the mean . Arctic Sea Ice Extent has risen 280,000 sq km in last 3 days.

Data here. Graphs below. Click for bigger.

Global_Sea_Ice_Extent_2014_Day_52_1981-2010 Global_Sea_Ice_Extent_Zoomed_2014_Day_52_1981-2010 Antarctic_Sea_Ice_Extent_2014_Day_52_1981-2010 Antarctic_Sea_Ice_Extent_Zoomed_2014_Day_52_1981-2010 Arctic_Sea_Ice_Extent_2014_Day_52_1981-2010 Arctic_Sea_Ice_Extent_Zoomed_2014_Day_52_1981-2010

Sea Ice Update February 20 2014 – Antarctic Sea Ice Extent Still 23% above normal

Published on by sunshinehours1Leave a comment

A quick update for sea ice extent:

  • Global Sea Ice is 149,000 sq km below the 1981-2010 mean.  That is 0.8% below the mean.
  • Antarctic Sea Ice is  671,000 sq km above the 1981-2010 mean. That is 23% above the mean.  Antarctic Sea Ice Extent fell 40,000 sq km. and hast not reach minimum yet.
  • Arctic Sea Ice is 820,000 sq km below the 1981-2010 mean.  That is 5.4% below the mean . That is 4th lowest for this day.

Data here. Graphs below. Click for bigger.

Global_Sea_Ice_Extent_2014_Day_50_1981-2010 Global_Sea_Ice_Extent_Zoomed_2014_Day_50_1981-2010 Antarctic_Sea_Ice_Extent_2014_Day_50_1981-2010 Antarctic_Sea_Ice_Extent_Zoomed_2014_Day_50_1981-2010 Arctic_Sea_Ice_Extent_2014_Day_50_1981-2010 Arctic_Sea_Ice_Extent_Zoomed_2014_Day_50_1981-2010

Sea Ice Update February 17 2014 – Antarctic Sea Ice Extent Still 25% above normal

Published on by sunshinehours186 Comments

A quick update for sea ice extent:

  • Global Sea Ice is 93,000 sq km below the 1981-2010 mean.  That is 0.5% below “normal”
  • Antarctic Sea Ice is  706,000 sq km above the 1981-2010 mean. That is 25% above “normal”.  Antarctic Sea Ice Extent actually rose 38,000 sq km from day 46 to day 47. Minimum could be near.
  • Arctic Sea Ice is 799,000 sq km below the 1981-2010 mean.  That is 5.25% below “normal”.

Data here. Graphs below. Click for bigger.

Global_Sea_Ice_Extent_Zoomed_2014_Day_47_1981-2010 Antarctic_Sea_Ice_Extent_Zoomed_2014_Day_47_1981-2010 Arctic_Sea_Ice_Extent_Zoomed_2014_Day_47_1981-2010

Sea Ice Update February 10 2014

Published on by sunshinehours1Leave a comment

A quick update for sea ice extent:

  • Global Sea Ice is 70,000 sq km below the 1981-2010 mean.
  • Antarctic Sea Ice is  728,000 sq km above the 1981-2010 mean and probably NOT on track to break the record for highest minimum.  Day 40 was still a daily record (23rd of the year), but only by 2120 sq km.
  • Arctic Sea Ice is 798,000 sq km below the 1981-2010 mean.

Graphs below. Click for bigger.

Global_Sea_Ice_Extent_Zoomed_2014_Day_40_1981-2010 Antarctic_Sea_Ice_Extent_Zoomed_2014_Day_40_1981-2010 Arctic_Sea_Ice_Extent_Zoomed_2014_Day_40_1981-2010

Sea Ice Update February 2 2014

Published on by sunshinehours1Leave a comment

A quick update for sea ice extent:

Global Sea Ice is 192,000 sq km above normal.
Antarctic Sea Ice is at record levels for this day and is 219,000 sq km above 2008 and 940,000 sq km above the 1981-2010 mean and on track to break the record for highest minimum.
Arctic Sea Ice is 746,000 sq km below the 1981-2010 mean.

Graphs below. Click for bigger.

Global_Sea_Ice_Extent_Zoomed_2014_Day_32_1981-2010 Antarctic_Sea_Ice_Extent_Zoomed_2014_Day_32_1981-2010 Arctic_Sea_Ice_Extent_Zoomed_2014_Day_32_1981-2010

Sea Ice Update January 27 2014

Published on by sunshinehours14 Comments

A quick update for sea ice extent:

Global Sea Ice is 560,000 sq km above normal.
Antarctic Sea Ice is at record levels for this day and on track to possibly break the record for highest minimum.
Arctic Sea Ice has just crossed the one standard deviation line for the first time this year.

Graphs below. Click for bigger.

Global_Sea_Ice_Extent_Zoomed_2014_Day_26_1981-2010 Antarctic_Sea_Ice_Extent_Zoomed_2014_Day_26_1981-2010 Arctic_Sea_Ice_Extent_Zoomed_2014_Day_26_1981-2010

Arctic Sea Ice Extent Stats For 2013

Published on by sunshinehours11 Comment

2013 was a well below average year for Arctic Sea Ice Extent .

Max Extent of 15.16969 For Whole Year Occurred On Day: 73 March 14
Max Anomaly For Whole Year Occurred On Day: 145 May 25 = -0.05969577
Max Anomaly % For Whole Year Occurred On Day: 145 May 25 = -0.4662094
Mean Anomaly For Whole Year: = -0.6446271

2013 was ranked 30th out of 36 years for average anomaly above the 1981-2010 mean – just below 2009, but 530,000 sq km above 2012.

30 2013 -0.64
31 2005 -0.66
32 2006 -0.79
33 2010 -0.86
34 2011 -1.08
35 2007 -1.09
36 2012 -1.17

There were zero daily records set and no 2nd places.

Number of daily records sorted by Top 2

Year First Second Top 2
1982 54 69 123
1983 48 38 86
1980 42 39 81
1979 59 19 78
1992 22 54 76
1996 39 17 56
1981 26 12 38
1988 6 29 35
1978 24 5 29
1987 5 23 28
1985 15 12 27
1986 15 9 24
1989 7 11 18
1993 4 13 17

Here are the key stats for each year. Min/Max/Anomaly in millions sq km.

Year Min Max day of Max day of Min Avg Anomaly
1979 6.89236 16.56457 60 264 0.75
1980 7.52476 16.25042 65 249 0.76
1981 6.88784 15.71365 73 253 0.56
1982 7.15423 16.27475 58 256 0.87
1983 7.19145 16.33207 73 251 0.76
1984 6.39916 15.76157 78 260 0.34
1985 6.4799 16.11716 76 250 0.42
1986 7.12351 16.11934 69 249 0.63
1987 6.89159 16.21724 52 245 0.7
1988 7.04905 16.24163 70 255 0.6
1989 6.88931 15.72295 65 265 0.4
1990 6.0191 16.21077 71 264 0.12
1991 6.26027 15.58803 56 259 0.18
1992 7.16324 15.53258 72 251 0.53
1993 6.15699 16.00491 72 249 0.35
1994 6.92645 15.72226 61 248 0.44
1995 5.98945 15.32238 59 252 -0.16
1996 7.15283 15.42074 52 254 0.26
1997 6.61353 15.63647 79 246 0.1
1998 6.29922 16.02091 56 260 0.19
1999 5.68009 15.55755 89 255 0.12
2000 5.9442 15.44482 63 255 -0.07
2001 6.56774 15.66664 63 262 0.03
2002 5.62456 15.57345 68 256 -0.2
2003 5.97198 15.58678 80 260 -0.17
2004 5.77608 15.25548 70 263 -0.33
2005 5.31832 14.94615 71 265 -0.66
2006 5.74877 14.73298 70 257 -0.79
2007 4.1607 14.78963 69 257 -1.09
2008 4.55469 15.30522 58 262 -0.59
2009 5.05488 15.16275 61 255 -0.63
2010 4.59918 15.28449 90 262 -0.86
2011 4.33028 14.67084 66 251 -1.08
2012 3.36973 15.25102 64 260 -1.17
2013 5.07939 15.16969 73 252 -0.64

The Year End Graph.

Arctic_Sea_Ice_Extent_2013_Day_365_1981-2010

Global Sea Ice Extent Stats For 2013

Published on by sunshinehours14 Comments

2013 was an average year for Global Sea Ice Extent (thanks to it being a banner year for Antarctic Sea Ice Extent)

The average daily anomaly  was 200,000 sq km above the 1981-2010 mean. That would be 15th highest since 1979.

Max Extent of 27.4959 million sq km For Whole Year Occurred On Day: 306 November 2
Max Anomaly For Whole Year Occurred On Day: 353 December 19 = 0.9459423  million sq km
Max Anomaly % For Whole Year Occurred On Day: 73 March 14 = 4.72%

There were zero daily records set and no 2nd places.

Here are the key stats for each year. Min/Max/Anomaly in millions sq km.

Year Min Max day of Max day of Min Avg Anomaly
1979 19.09222 27.48859 176 38 0.79
1980 18.5996 28.11968 289 57 0.37
1981 18.18091 27.48105 291 45 0.35
1982 18.76482 27.83626 306 42 0.85
1983 18.84029 27.89772 307 47 0.5
1984 17.71544 27.18759 316 40 0.13
1985 17.92867 27.61347 306 50 0.37
1986 18.80319 27.00445 317 45 0.08
1987 18.98408 27.15319 317 46 0.46
1988 18.15105 27.88244 319 45 0.46
1989 18.00758 27.50341 299 48 0.17
1990 18.3706 27.36396 294 45 -0.12
1991 17.96976 27.05178 309 63 0.07
1992 17.95822 27.58992 322 60 0.29
1993 17.84281 27.99757 310 57 0.12
1994 18.57179 27.97479 309 43 0.56
1995 18.49688 27.11473 306 45 -0.01
1996 17.79264 27.46173 293 57 0.39
1997 17.65372 27.04273 310 57 -0.17
1998 18.47935 27.58827 297 47 0.27
1999 17.94246 27.58386 306 62 0.23
2000 17.5882 26.93691 302 49 0.04
2001 18.52515 26.75864 319 38 0.05
2002 18.08847 26.81604 297 55 -0.64
2003 18.72494 27.09882 306 43 0.14
2004 18.31746 27.09686 316 51 -0.01
2005 17.07721 27.37923 308 38 -0.62
2006 16.7209 27.09882 298 30 -0.99
2007 17.21196 26.24784 308 47 -1.05
2008 18.43071 27.30686 310 46 0
2009 17.43751 26.17157 303 53 -0.24
2010 17.39862 26.71555 313 42 -0.4
2011 16.74368 26.17913 307 42 -1.24
2012 17.82476 25.90133 313 51 -0.81
2013 18.21356 27.4959 306 37 0.2

The Year End Graph.

Global_Sea_Ice_Extent_2013_Day_365_1981-2010