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

Validation of ice thickness - Full domain

Bulletin date: 2025-03-27

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: 2025-03-21:

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
...date precedes bulletin

Date: 2025-03-23:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 244303 1992 8 0 0
c1 14627 22763 3358 741 0
c2 12949 9628 12193 5530 0
c3 21936 1996 7091 7105 0
c4 31036 429 2491 6116 0
...date precedes bulletin

Date: 2025-03-25:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 246603 2007 6 1 0
c1 15378 23338 4191 929 0
c2 14201 7082 11706 4963 0
c3 25239 855 5458 8291 0
c4 33212 238 1947 5675 0
...date precedes bulletin

Date: 2025-03-27:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 246704 2076 3 0 0
c1 14203 22704 3536 910 0
c2 11744 9469 11413 6042 0
c3 23209 1718 6145 8576 0
c4 31969 340 2248 5671 0
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 246873 2174 3 1 0
c1 13994 22645 3501 872 0
c2 11726 9369 11410 6149 0
c3 23265 1778 6169 8480 0
c4 31971 341 2262 5697 0

Date: 2025-03-29:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 246167 2590 12 1 0
c1 10618 25186 2956 762 0
c2 11224 12219 10871 5135 0
c3 20382 1454 6507 9988 0
c4 28243 152 2071 7359 0
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 246248 2770 11 2 0
c1 10619 25048 3040 751 0
c2 11010 12149 10725 5263 0
c3 20467 1462 6574 9818 0
c4 28290 172 2067 7411 0

Date: 2025-03-31:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 248078 2111 36 2 0
c1 15519 25353 3742 649 0
c2 11744 6779 9900 4789 0
c3 17965 1738 7296 8686 0
c4 22600 515 3141 8292 0
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 246567 2121 34 1 0
c1 15397 19237 2120 486 0
c2 14808 11703 9520 3887 0
c3 17388 2477 8499 9410 0
c4 21746 958 3942 8634 0

Date: 2025-04-02:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 248215 2492 14 23 0
c1 15416 21425 3752 968 0
c2 12217 5780 9605 6019 0
c3 23496 956 5235 8249 0
c4 34835 303 2082 10578 0
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 245278 3109 12 13 0
c1 16740 15765 2008 610 0
c2 15281 9970 9830 4987 0
c3 23596 1599 6181 9241 0
c4 33284 513 2657 10986 0

Date: 2025-04-04:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 247136 2049 10 2 0
c1 19315 15139 2571 2239 0
c2 14208 7764 9092 5404 0
c3 28433 1511 6063 7051 0
c4 38251 316 3314 5532 0
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 243914 2909 27 0 0
c1 19953 11222 1537 1400 0
c2 17253 9929 9146 5115 0
c3 29231 2212 7237 7529 0
c4 36992 507 3103 6184 0


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