Arctic Ice Stays Put Mar. 22

 

atl064to081After a slow beginning this month, Arctic ice advanced to set a late annual maximum, and is now holding on to its gains the last four days.   The image above shows the last week, setting new 2018 maximums on day 74 for NH overall, as well in Barents Sea.  The graph below shows that as of yesterday, Barents is well above the 11 year average, and matching 2014 the highest year in the decade.

Barents day081

The graph below shows how the Arctic extent has grown compared to the 11 year average and to some years of interest.
NHday081
Note the average max on day 62 and 2018 max on day 74, now matching 2007 and 380k km2 above last year.  SII (NOAA) continues to show ~200k km2 less extent.

Drift ice in Okhotsk Sea at sunrise.

The table below shows ice extents in the regions compared to averages and last year.  11 year averages are from 2007 to 2017 inclusive.

Region 2018081 Day 081 
Average
2018-Ave. 2017081 2018-2017
 (0) Northern_Hemisphere 14568779 14938247 -369468 14187550 381229
 (1) Beaufort_Sea 1070445 1070178 267 1070445 0
 (2) Chukchi_Sea 966006 965867 139 966006 0
 (3) East_Siberian_Sea 1087137 1087046 91 1086168 969
 (4) Laptev_Sea 897845 897791 54 897845 0
 (5) Kara_Sea 934807 915480 19326 847386 87421
 (6) Barents_Sea 713140 625289 87852 512306 200835
 (7) Greenland_Sea 554343 645763 -91419 676556 -122213
 (8) Baffin_Bay_Gulf_of_St._Lawrence 1373947 1552545 -178597 1474155 -100208
 (9) Canadian_Archipelago 853109 852904 205 853214 -106
 (10) Hudson_Bay 1260838 1260527 311 1260903 -66
 (11) Central_Arctic 3156256 3229541 -73284 3246109 -89852
 (12) Bering_Sea 398503 826983 -428479 623357 -224854
 (13) Baltic_Sea 142292 77332 64959 44911 97380
 (14) Sea_of_Okhotsk 1146933 914118 232815 615366 531567

Note the overall NH shortfall is 2.5% and less than the deficit in Bering Sea.  Both Okhotsk and Barents Sea are well above average, more than offsetting less extent in Greenland Sea and Baffin Bay.  The picture is consistent with an ice pack of higher volume than recent years, with the melting showing at the margins.

seaice_20071211

Source: Real Climate Science

2 comments

  1. Hifast · March 23, 2018

    Reblogged this on Climate Collections.

    Like

  2. Taylor Pohlman · March 23, 2018

    My comment stands that I made to your post on WUWT – this year you can walk from Siberia to Canada on 3 meter ice – the red buildup (4 meter) is usually just on the Canada side, but this year it’s spread pretty widely on both sides of the Central Arctic.

    Like

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