Description of algorithm
Interpretation of results
  Ice thickness stat.s ++
  Contingency tables

Validation of ice thickness - Full domain

Bulletin date: 2025-12-11

Data source: AWI SMOS sea ice thickness

Definition of categories:

Category   Sea ice thickness   
c1<0.3m
c20.3 - 0.6m
c30.6 - 1m
c4>1m

Model vs. SMOS observations, sea ice thickness contingency tables

Date: 2025-12-05:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 157469 12582 0 0 0
c1 1538 23201 1897 179 0
c2 72 3539 10527 5769 0
c3 91 1034 2655 6035 0
c4 7 295 839 1205 0
...date precedes bulletin

Date: 2025-12-07:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 158717 11868 4 0 0
c1 2355 23698 1343 181 0
c2 102 5473 9483 4736 0
c3 58 1302 4132 5777 0
c4 19 404 1303 1564 0
...date precedes bulletin

Date: 2025-12-09:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 166526 10070 0 0 0
c1 1205 25428 1178 120 0
c2 57 5382 9638 5549 0
c3 33 1079 4258 7690 0
c4 6 297 1617 1954 0
...date precedes bulletin

Date: 2025-12-11:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 169757 11035 0 0 0
c1 1256 21699 1345 167 0
c2 75 5807 7544 4296 0
c3 79 1176 3334 6780 0
c4 6 376 1256 1834 0
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 169839 11037 0 0 0
c1 1175 21650 1414 157 0
c2 66 5824 7478 4285 0
c3 87 1181 3298 6818 0
c4 6 401 1289 1817 0

Date: 2025-12-13:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 150204 11341 0 0 0
c1 1296 20665 2826 271 0
c2 205 4814 7881 3174 0
c3 127 718 2750 5384 0
c4 9 272 1236 1830 0
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 150074 11375 0 0 0
c1 1420 20581 2864 268 0
c2 205 4854 7837 3121 0
c3 136 715 2767 5444 0
c4 6 285 1225 1826 0

Date: 2025-12-15:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 158206 12540 7 0 0
c1 1684 21135 2850 253 0
c2 385 7461 7263 2941 0
c3 506 2026 4948 7014 0
c4 38 550 1658 1722 0
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 157904 12253 7 0 0
c1 2048 21359 2826 243 0
c2 377 7588 7345 2930 0
c3 459 1994 4891 7072 0
c4 31 518 1657 1685 0

Date: 2025-12-17:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 159902 13089 9 0 0
c1 2033 22429 3885 418 0
c2 316 5277 8013 4327 0
c3 300 2123 2006 6435 0
c4 9 401 1142 1293 0
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 158785 12694 12 0 0
c1 2345 20762 2378 273 0
c2 522 7193 8650 3302 0
c3 743 2023 2865 7550 0
c4 165 647 1150 1348 0

Date: 2025-12-19:

Best estimate Forecast
...observations not yet available ...observations not yet available


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