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

Validation of ice thickness - Full domain

Bulletin date: 2025-04-03

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: 2025-03-28:

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
...date precedes bulletin

Date: 2025-03-30:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 246611 2090 24 12 0
c1 15707 19738 2101 613 0
c2 13751 12103 10963 3921 0
c3 24210 1693 7371 8137 0
c4 31983 406 3126 8262 0
...date precedes bulletin

Date: 2025-04-01:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 248391 2130 32 9 0
c1 15402 23684 3062 964 0
c2 10516 6458 10264 5541 0
c3 21356 1528 6634 7438 0
c4 27419 298 2893 7448 0
...date precedes bulletin

Date: 2025-04-03:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 248173 2141 10 0 0
c1 13352 21335 2887 2691 0
c2 9908 6009 10383 6547 0
c3 22008 837 6384 9867 0
c4 30488 212 2715 8606 0
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 248391 2259 12 1 0
c1 13136 21212 2937 2674 0
c2 9894 6004 10356 6676 0
c3 22042 848 6369 9724 0
c4 30466 211 2705 8636 0

Date: 2025-04-05:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 245359 2503 6 0 0
c1 13910 18817 3447 2334 0
c2 12586 8835 9091 5873 0
c3 20072 2113 7647 9999 0
c4 29533 358 3676 7491 0
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 245537 2630 13 0 0
c1 13854 18538 3477 2340 0
c2 12571 9033 9045 5969 0
c3 20038 2062 7660 9896 0
c4 29460 363 3672 7492 0

Date: 2025-04-07:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 246236 2845 10 0 0
c1 13377 23793 5802 1061 0
c2 11133 6954 9926 4966 0
c3 17871 1703 6846 9150 0
c4 23532 461 2418 5732 0
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 244121 2927 22 1 0
c1 13996 19438 3175 531 0
c2 10203 9905 10257 5019 0
c3 18924 2728 7881 8670 0
c4 24905 758 3667 6688 0

Date: 2025-04-09:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 246579 2574 0 0 0
c1 17291 20350 2813 1240 0
c2 12499 8176 8286 4997 0
c3 19202 2601 7057 7222 0
c4 21947 1133 2884 6121 0
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 243708 2361 0 0 0
c1 17851 16926 1803 677 0
c2 12171 9985 7537 4848 0
c3 20481 3969 7791 7284 0
c4 23307 1593 3909 6771 0

Date: 2025-04-11:

Best estimate Forecast
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 245930 2737 2 3 0
c1 15045 20623 3055 1959 0
c2 11896 10835 7603 4828 0
c3 15953 3270 8546 8840 0
c4 19998 1278 3350 7156 0
observations
open c1 c2 c3 c4
m
o
d
e
l		 open 241814 2738 2 3 0
c1 15622 17227 2271 1776 0
c2 11805 12142 6956 4765 0
c3 18136 5014 8774 8499 0
c4 21445 1622 4553 7743 0


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