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

Validation of ice thickness - Full domain

Bulletin date: 2025-03-06

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: 2025-02-28:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 252233 2359 1 0 0
c1 16101 21415 4069 619 0
c2 13333 7055 12038 5329 0
c3 22235 792 2868 8380 0
c4 28045 299 736 5748 0
...date precedes bulletin

Date: 2025-03-02:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 251532 2975 3 2 0
c1 12382 21816 4078 1148 0
c2 8428 10436 13227 5529 0
c3 13746 1137 5367 10625 0
c4 23482 773 1359 9041 0
...date precedes bulletin

Date: 2025-03-04:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 252323 2615 3 0 0
c1 19259 19254 5495 951 0
c2 10689 7632 11697 4591 0
c3 25998 1038 3700 7395 0
c4 33563 395 1316 5625 0
...date precedes bulletin

Date: 2025-03-06:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 250289 3480 40 1 0
c1 14107 24129 3803 606 0
c2 9588 9556 12530 4264 0
c3 21615 964 4798 8408 0
c4 30481 235 1170 7766 0
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 250406 3596 47 1 0
c1 13873 24058 3741 588 0
c2 9715 9522 12663 4280 0
c3 21537 970 4709 8426 0
c4 30549 218 1181 7750 0

Date: 2025-03-08:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 250160 2388 4 5 0
c1 16368 20728 2839 347 0
c2 10875 10541 11840 4132 0
c3 20206 1120 5326 9486 0
c4 33962 650 2025 5595 0
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 250120 2538 6 8 0
c1 16378 20604 2725 356 0
c2 11022 10517 11974 4123 0
c3 19987 1133 5306 9486 0
c4 34064 635 2023 5592 0

Date: 2025-03-10:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 250819 2471 1 0 0
c1 14458 26003 2772 1610 0
c2 9707 7904 11598 4689 0
c3 21025 589 3793 7221 0
c4 23695 445 1356 4737 0
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 248612 2694 1 0 0
c1 15454 21022 1605 937 0
c2 9955 12125 9851 3646 0
c3 18587 1014 6345 8243 0
c4 27096 557 1718 5431 0

Date: 2025-03-12:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 249627 1799 0 4 0
c1 19964 19309 3287 908 0
c2 12243 7243 11780 5165 0
c3 22945 774 6590 7780 0
c4 21513 376 2941 6151 0
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 247964 1715 0 2 0
c1 20363 15636 1811 584 0
c2 12716 10283 10177 3928 0
c3 21739 1285 8932 8037 0
c4 23510 582 3678 7457 0

Date: 2025-03-14:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 246221 2852 2 3 0
c1 21059 18590 2845 771 0
c2 13314 9375 10738 4454 0
c3 23941 2552 6412 6626 0
c4 31131 357 2731 7126 0
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 245042 2742 0 1 0
c1 20474 15650 1903 553 0
c2 14856 10986 8970 3192 0
c3 20203 3772 8411 7118 0
c4 35091 576 3444 8116 0


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