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

Validation of ice thickness - Full domain

Bulletin date: 2025-03-13

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: 2025-03-07:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 249569 3357 16 1 0
c1 14132 23411 3524 637 0
c2 12133 9424 11198 4471 0
c3 22796 743 4930 9886 0
c4 18963 552 1567 6771 0
...date precedes bulletin

Date: 2025-03-09:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 249093 2930 9 4 0
c1 18252 19213 1637 381 0
c2 9580 10724 10901 4154 0
c3 23379 1013 5654 6746 0
c4 35843 479 2339 6390 0
...date precedes bulletin

Date: 2025-03-11:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 249983 2433 1 0 0
c1 15631 24048 3102 1316 0
c2 9866 7282 13229 4378 0
c3 18069 691 5226 9405 0
c4 14532 445 1961 5694 0
...date precedes bulletin

Date: 2025-03-13:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 248563 1983 1 5 0
c1 19934 18174 3623 1087 0
c2 17063 6651 8862 3664 0
c3 21664 1628 7041 6730 0
c4 25937 627 3952 5156 0
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 248584 1942 1 6 0
c1 19955 18148 3556 1083 0
c2 17043 6762 8847 3682 0
c3 21678 1621 7154 6740 0
c4 25901 590 3921 5131 0

Date: 2025-03-15:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 244707 3165 6 3 0
c1 11823 24488 4452 1181 0
c2 6491 11933 12214 4839 0
c3 6367 2217 10288 9849 0
c4 2114 448 2841 7335 0
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 244674 3199 8 5 0
c1 11913 24481 4503 1179 0
c2 6419 11945 12229 4857 0
c3 6326 2173 10293 9860 0
c4 2170 453 2768 7306 0

Date: 2025-03-17:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 247385 1621 4 5 0
c1 21581 21358 4460 1000 0
c2 13175 6412 10947 4574 0
c3 26802 1014 6477 6560 0
c4 37283 194 1566 5554 0
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 245128 1620 3 5 0
c1 22033 15912 2226 593 0
c2 13767 11300 10656 3818 0
c3 27496 1472 8375 6741 0
c4 37802 295 2194 6536 0

Date: 2025-03-19:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 245338 2307 12 14 0
c1 16988 24683 5572 956 0
c2 11125 7835 10747 4809 0
c3 22161 1325 6826 7449 0
c4 30217 175 2731 8180 0
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 243020 2425 18 16 0
c1 17635 19025 3048 549 0
c2 11751 12731 10957 4294 0
c3 24825 1913 8667 7245 0
c4 28598 231 3198 9304 0

Date: 2025-03-21:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 243494 2413 0 2 0
c1 18951 23783 3662 534 0
c2 14158 6805 11464 4836 0
c3 23231 1555 7158 7845 0
c4 36876 240 1817 5488 0
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 242760 2603 0 1 0
c1 16355 18480 1886 350 0
c2 15209 11415 11405 3880 0
c3 26871 1784 8191 7827 0
c4 35515 514 2619 6647 0


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