Validation of sea ice concentration - Full domain
Bulletin date: 2025-02-06
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-01-31:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
69918 |
16693 |
284 |
269 |
28 |
0 |
0 |
0 |
| OW |
15 |
1718 |
320 |
590 |
149 |
1 |
0 |
0 |
| VODI |
1 |
726 |
283 |
1046 |
335 |
21 |
0 |
0 |
| ODI |
0 |
112 |
97 |
599 |
683 |
117 |
4 |
0 |
| CDI |
0 |
8 |
43 |
486 |
1157 |
902 |
271 |
14 |
| VCDI |
0 |
5 |
2 |
163 |
1103 |
5991 |
23449 |
67140 |
|
...date precedes bulletin
|
Date: 2025-02-02:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
70444 |
16160 |
245 |
193 |
34 |
13 |
0 |
0 |
| OW |
0 |
1708 |
349 |
678 |
95 |
20 |
0 |
0 |
| VODI |
0 |
950 |
265 |
943 |
285 |
58 |
0 |
0 |
| ODI |
0 |
272 |
168 |
580 |
687 |
162 |
11 |
0 |
| CDI |
0 |
76 |
111 |
592 |
1333 |
1135 |
225 |
11 |
| VCDI |
0 |
5 |
28 |
252 |
1438 |
8169 |
28168 |
58880 |
|
...date precedes bulletin
|
Date: 2025-02-04:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
70794 |
16264 |
350 |
317 |
2 |
24 |
0 |
0 |
| OW |
1 |
2408 |
404 |
596 |
111 |
10 |
0 |
0 |
| VODI |
0 |
439 |
259 |
1046 |
759 |
40 |
6 |
0 |
| ODI |
0 |
110 |
82 |
453 |
1039 |
235 |
22 |
0 |
| CDI |
0 |
63 |
73 |
398 |
1645 |
1674 |
377 |
12 |
| VCDI |
0 |
17 |
34 |
202 |
1259 |
6972 |
29938 |
56308 |
|
...date precedes bulletin
|
Date: 2025-02-06:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
69086 |
17440 |
337 |
543 |
97 |
0 |
15 |
0 |
| OW |
0 |
1809 |
347 |
678 |
148 |
0 |
10 |
2 |
| VODI |
0 |
609 |
239 |
1030 |
846 |
73 |
10 |
1 |
| ODI |
0 |
160 |
91 |
384 |
1120 |
370 |
30 |
0 |
| CDI |
0 |
109 |
70 |
468 |
1312 |
1560 |
609 |
40 |
| VCDI |
0 |
162 |
75 |
330 |
1033 |
7449 |
23996 |
62055 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
69086 |
17489 |
341 |
562 |
87 |
0 |
17 |
0 |
| OW |
0 |
1722 |
327 |
660 |
168 |
0 |
7 |
2 |
| VODI |
0 |
644 |
256 |
989 |
817 |
62 |
8 |
1 |
| ODI |
0 |
169 |
91 |
426 |
1089 |
380 |
30 |
0 |
| CDI |
0 |
108 |
70 |
485 |
1394 |
1623 |
677 |
38 |
| VCDI |
0 |
157 |
74 |
311 |
1001 |
7387 |
23931 |
62057 |
|
Date: 2025-02-08:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
71095 |
14609 |
300 |
535 |
120 |
4 |
0 |
0 |
| OW |
43 |
1768 |
263 |
656 |
222 |
24 |
0 |
0 |
| VODI |
23 |
888 |
268 |
967 |
767 |
87 |
1 |
0 |
| ODI |
0 |
227 |
150 |
505 |
1095 |
439 |
34 |
0 |
| CDI |
0 |
102 |
86 |
520 |
1210 |
1973 |
547 |
13 |
| VCDI |
0 |
102 |
49 |
339 |
1082 |
7515 |
24931 |
61184 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
71086 |
14613 |
325 |
554 |
123 |
11 |
0 |
0 |
| OW |
47 |
1678 |
235 |
593 |
210 |
15 |
0 |
0 |
| VODI |
28 |
974 |
268 |
946 |
774 |
83 |
1 |
0 |
| ODI |
0 |
225 |
153 |
561 |
1039 |
447 |
30 |
0 |
| CDI |
0 |
104 |
86 |
555 |
1269 |
1982 |
650 |
19 |
| VCDI |
0 |
102 |
49 |
313 |
1081 |
7504 |
24832 |
61178 |
|
Date: 2025-02-10:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
70129 |
16011 |
244 |
419 |
23 |
2 |
0 |
0 |
| OW |
0 |
1939 |
626 |
818 |
134 |
18 |
0 |
0 |
| VODI |
0 |
275 |
224 |
1679 |
680 |
28 |
0 |
0 |
| ODI |
0 |
27 |
35 |
536 |
1287 |
330 |
2 |
2 |
| CDI |
0 |
8 |
12 |
280 |
1521 |
2269 |
262 |
24 |
| VCDI |
0 |
10 |
5 |
71 |
853 |
6485 |
23538 |
63937 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
70129 |
15632 |
299 |
487 |
16 |
11 |
0 |
0 |
| OW |
0 |
1516 |
325 |
575 |
131 |
12 |
0 |
0 |
| VODI |
0 |
830 |
308 |
1193 |
479 |
61 |
0 |
0 |
| ODI |
0 |
182 |
114 |
816 |
957 |
334 |
18 |
3 |
| CDI |
0 |
77 |
59 |
470 |
1639 |
1749 |
574 |
34 |
| VCDI |
0 |
33 |
41 |
262 |
1276 |
6965 |
23210 |
63926 |
|
Date: 2025-02-12:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
69959 |
16356 |
376 |
423 |
16 |
0 |
0 |
0 |
| OW |
26 |
1610 |
549 |
771 |
81 |
1 |
0 |
0 |
| VODI |
3 |
356 |
299 |
1258 |
412 |
41 |
0 |
0 |
| ODI |
0 |
69 |
43 |
669 |
930 |
246 |
1 |
0 |
| CDI |
0 |
30 |
25 |
317 |
1575 |
1925 |
364 |
72 |
| VCDI |
0 |
12 |
11 |
172 |
1311 |
7739 |
23261 |
63434 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
69952 |
15951 |
352 |
436 |
30 |
4 |
0 |
0 |
| OW |
26 |
1386 |
433 |
529 |
70 |
10 |
0 |
0 |
| VODI |
10 |
763 |
341 |
1078 |
288 |
69 |
8 |
0 |
| ODI |
0 |
225 |
109 |
825 |
823 |
312 |
17 |
0 |
| CDI |
0 |
86 |
57 |
521 |
1756 |
1727 |
431 |
67 |
| VCDI |
0 |
22 |
11 |
221 |
1358 |
7830 |
23170 |
63439 |
|
Date: 2025-02-14:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
68551 |
17440 |
387 |
349 |
15 |
0 |
0 |
0 |
| OW |
21 |
1174 |
349 |
962 |
129 |
1 |
0 |
0 |
| VODI |
0 |
331 |
184 |
1179 |
612 |
49 |
0 |
0 |
| ODI |
0 |
83 |
45 |
511 |
944 |
377 |
9 |
0 |
| CDI |
0 |
36 |
35 |
256 |
1229 |
2067 |
706 |
63 |
| VCDI |
0 |
26 |
20 |
196 |
701 |
8082 |
27127 |
60497 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
68557 |
16836 |
331 |
380 |
46 |
1 |
0 |
0 |
| OW |
15 |
1382 |
255 |
681 |
130 |
12 |
0 |
0 |
| VODI |
0 |
586 |
293 |
1003 |
507 |
104 |
2 |
0 |
| ODI |
0 |
162 |
74 |
771 |
897 |
403 |
25 |
8 |
| CDI |
0 |
88 |
39 |
384 |
1256 |
2275 |
699 |
187 |
| VCDI |
0 |
36 |
28 |
234 |
794 |
7781 |
27116 |
60365 |
|
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