Arctic Ice Tops 12 Wadhams mid-December 2022

The animation shows the last two weeks of Arctic ice recovery from November 29 to December 13, 2022. On the lower far right, Hudson Bay starts this period at 550k km2 ice extent and grows to 1.2M km2 (from 44% to 96% of its maximum).  On the far left Sea of Okhotsk starts with 42k km2 and grows to 380k km2 of ice extent, now at 45% of its max last March. In the center Beaufort Sea reaches its max.

The graph below shows Mid December daily ice extents for 2022 compared to 16 year averages, and some years of note. As of yesterday, Arctic ice extent topped 12 Wadhams, or 12M km2.

The black line shows so far during this period  on average Arctic ice extents increased ~1.0M km2, while 2022 (cyan line) started December 200k km2 in deficit, reaching then holding a surplus to average for the last six days.  The Sea Ice Index in orange (SII from NOAA) lagged MASIE this month, but also topped 12M km2 on day 247.  Both 2007 and 2020 had much lower extents early in December, making up most of the deficit later on.  

Why is this important?  All the claims of global climate emergency depend on dangerously higher temperatures, lower sea ice, and rising sea levels.  The lack of additional warming is documented in a post Still No Global Warming March 2022

The lack of acceleration in sea levels along coastlines has been discussed also.  See USCS Warnings of Coastal Flooding

Also, a longer term perspective is informative:

post-glacial_sea_levelThe table below shows the distribution of Sea Ice on day 347 across the Arctic Regions, on average, this year and 2007.

Region 2022347 Day 347 Average 2022-Ave. 2007347 2022-2007
 (0) Northern_Hemisphere 12151093 12003311  147782  11428288 722805 
 (1) Beaufort_Sea 1070966 1069874  1092  1062676 8290 
 (2) Chukchi_Sea 895943 906386  -10443  677993 217949 
 (3) East_Siberian_Sea 1087137 1085009  2129  1053584 33553 
 (4) Laptev_Sea 897845 897835  10  897845
 (5) Kara_Sea 801884 845212  -43328  800920 964 
 (6) Barents_Sea 221598 331366  -109768  236964 -15366 
 (7) Greenland_Sea 587354 544864  42489  488595 98758 
 (8) Baffin_Bay_Gulf_of_St._Lawrence 792277 806543  -14266  782889 9388 
 (9) Canadian_Archipelago 854843 853331  1512  852556 2286 
 (10) Hudson_Bay 1203872 1046825  157047  1209339 -5467 
 (11) Central_Arctic 3214028 3204979  9049  3186190 27837 
 (12) Bering_Sea 119070 225887 -106817  54836 64234 
 (13) Baltic_Sea 11482 9900  1582  2898 8584 
 (14) Sea_of_Okhotsk 379132 166880  212251  119667 259464 

The overall surplus to average is 148k km2, (2%).  Main deficits in Bering and Barents seas are more than offset by surpluses elsewhere, especially Okhotsk and Hudson Bay. 2022 ice extent exceeds that of 2007 by 3/4 Wadham, most of the difference being in Chukchi and Okhotsk.

bathymetric_map_arctic_ocean

Illustration by Eleanor Lutz shows Earth’s seasonal climate changes. If played in full screen, the four corners present views from top, bottom and sides. It is a visual representation of scientific datasets measuring Arctic ice extents.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s