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

Validation of ice thickness - Full domain

Bulletin date: 2025-03-20

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: 2025-03-14:

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
...date precedes bulletin

Date: 2025-03-16:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 245174 2197 0 6 0
c1 17588 19355 3555 873 0
c2 12410 10453 11504 4051 0
c3 23326 1290 9429 8938 0
c4 27075 259 2686 9034 0
...date precedes bulletin

Date: 2025-03-18:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 245900 2444 10 10 0
c1 18274 24111 5181 1101 0
c2 14540 4842 11064 4002 0
c3 19542 1244 7267 8251 0
c4 21539 188 2473 9266 0
...date precedes bulletin

Date: 2025-03-20:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 243849 2826 1 0 0
c1 15301 27183 4387 684 0
c2 11194 7684 12336 4905 0
c3 22418 1355 8062 7241 0
c4 30408 339 2469 6878 0
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 243752 2906 2 0 0
c1 15556 27169 4397 665 0
c2 10944 7633 12442 4904 0
c3 22445 1336 7983 7251 0
c4 30473 343 2431 6888 0

Date: 2025-03-22:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 243386 2401 9 3 0
c1 20100 20496 3795 714 0
c2 13180 8048 11851 5102 0
c3 26957 2146 6555 7135 0
c4 32498 366 2614 5671 0
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 243334 2650 12 1 0
c1 20328 20330 3811 675 0
c2 12999 7980 11860 5130 0
c3 26896 2150 6502 7056 0
c4 32564 347 2639 5763 0

Date: 2025-03-24:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 246895 1718 9 3 0
c1 17711 22974 4560 906 0
c2 14745 6177 11266 4858 0
c3 22657 1057 5609 7827 0
c4 32705 235 1653 5383 0
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 245190 1911 6 1 0
c1 17987 18545 2546 489 0
c2 14560 9710 12012 4719 0
c3 23255 1695 6535 7406 0
c4 33721 300 1998 6362 0

Date: 2025-03-26:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 246679 1969 3 5 0
c1 13419 24663 3143 914 0
c2 14638 7641 10591 5630 0
c3 23862 912 5038 8938 0
c4 34711 217 1703 5865 0
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 245217 2338 1 6 0
c1 13570 20490 2278 519 0
c2 13910 11091 10808 5283 0
c3 24618 1177 5498 8771 0
c4 35994 306 1893 6773 0

Date: 2025-03-28:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 246573 2123 14 0 0
c1 12653 23440 3446 802 0
c2 10655 10863 10876 5875 0
c3 18889 1434 5676 10252 0
c4 28510 399 2050 6229 0
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 244755 2428 9 0 0
c1 13123 19237 2794 698 0
c2 10572 14250 10607 5046 0
c3 19800 1939 6322 10192 0
c4 29030 405 2330 7222 0


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