Validation of sea ice concentration - European sector
Bulletin date: 2025-07-17
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-07-11:
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 |
76021 |
8601 |
112 |
121 |
7 |
0 |
0 |
0 |
OW |
1369 |
1697 |
345 |
323 |
26 |
0 |
0 |
0 |
VODI |
2812 |
406 |
312 |
1190 |
243 |
21 |
2 |
0 |
ODI |
0 |
19 |
34 |
465 |
1099 |
188 |
17 |
0 |
CDI |
0 |
0 |
0 |
40 |
1496 |
2266 |
425 |
0 |
VCDI |
0 |
0 |
0 |
0 |
6 |
2538 |
661 |
0 |
|
...date precedes bulletin
|
Date: 2025-07-13:
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 |
76431 |
8022 |
41 |
42 |
1 |
0 |
0 |
0 |
OW |
1391 |
1902 |
341 |
325 |
31 |
0 |
1 |
0 |
VODI |
2782 |
621 |
396 |
1056 |
292 |
44 |
8 |
0 |
ODI |
0 |
60 |
61 |
645 |
952 |
186 |
63 |
0 |
CDI |
0 |
9 |
12 |
99 |
1529 |
4388 |
211 |
0 |
VCDI |
0 |
0 |
0 |
0 |
31 |
810 |
79 |
0 |
|
...date precedes bulletin
|
Date: 2025-07-15:
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 |
78070 |
7056 |
56 |
24 |
3 |
0 |
0 |
0 |
OW |
1596 |
2092 |
465 |
390 |
12 |
0 |
0 |
0 |
VODI |
2536 |
115 |
321 |
1404 |
308 |
8 |
0 |
0 |
ODI |
0 |
0 |
7 |
322 |
1390 |
144 |
3 |
0 |
CDI |
0 |
0 |
0 |
13 |
684 |
5597 |
64 |
0 |
VCDI |
0 |
0 |
0 |
0 |
4 |
113 |
65 |
0 |
|
...date precedes bulletin
|
Date: 2025-07-17:
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 |
77175 |
7963 |
72 |
43 |
2 |
0 |
0 |
0 |
OW |
1597 |
1984 |
449 |
429 |
30 |
0 |
0 |
0 |
VODI |
2513 |
240 |
364 |
1290 |
368 |
15 |
0 |
0 |
ODI |
0 |
1 |
13 |
368 |
1139 |
196 |
12 |
0 |
CDI |
0 |
0 |
0 |
9 |
753 |
5484 |
211 |
0 |
VCDI |
0 |
0 |
0 |
0 |
0 |
85 |
57 |
0 |
|
|
observations |
|
Ice free |
Ice free near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI near MIZ |
VCDI |
m o d e l |
Ice free |
77173 |
8237 |
78 |
43 |
2 |
0 |
0 |
0 |
OW |
1598 |
1736 |
454 |
459 |
27 |
0 |
0 |
0 |
VODI |
2514 |
212 |
349 |
1254 |
374 |
14 |
1 |
0 |
ODI |
0 |
3 |
17 |
371 |
1120 |
221 |
12 |
0 |
CDI |
0 |
0 |
0 |
12 |
769 |
5401 |
201 |
0 |
VCDI |
0 |
0 |
0 |
0 |
0 |
144 |
66 |
0 |
|
Date: 2025-07-19:
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 |
79217 |
6151 |
58 |
16 |
0 |
0 |
0 |
0 |
OW |
1698 |
1988 |
395 |
332 |
27 |
0 |
0 |
0 |
VODI |
2480 |
348 |
410 |
1097 |
270 |
45 |
4 |
0 |
ODI |
0 |
9 |
27 |
526 |
918 |
188 |
17 |
0 |
CDI |
0 |
0 |
0 |
9 |
761 |
5217 |
502 |
0 |
VCDI |
0 |
0 |
0 |
0 |
0 |
134 |
18 |
0 |
|
|
observations |
|
Ice free |
Ice free near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI near MIZ |
VCDI |
m o d e l |
Ice free |
79217 |
6367 |
55 |
15 |
1 |
0 |
0 |
0 |
OW |
1694 |
1794 |
415 |
355 |
28 |
1 |
0 |
0 |
VODI |
2484 |
319 |
377 |
1038 |
276 |
43 |
7 |
0 |
ODI |
0 |
16 |
43 |
555 |
897 |
258 |
25 |
0 |
CDI |
0 |
0 |
0 |
17 |
774 |
5119 |
462 |
0 |
VCDI |
0 |
0 |
0 |
0 |
0 |
163 |
47 |
0 |
|
Date: 2025-07-21:
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 |
79861 |
6794 |
57 |
16 |
3 |
0 |
0 |
0 |
OW |
1706 |
1457 |
613 |
420 |
11 |
0 |
0 |
0 |
VODI |
2359 |
8 |
116 |
1247 |
362 |
7 |
0 |
0 |
ODI |
0 |
0 |
0 |
100 |
849 |
150 |
0 |
0 |
CDI |
0 |
0 |
0 |
0 |
741 |
4497 |
177 |
0 |
VCDI |
0 |
0 |
0 |
0 |
0 |
248 |
1063 |
0 |
|
|
observations |
|
Ice free |
Ice free near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI near MIZ |
VCDI |
m o d e l |
Ice free |
79763 |
6150 |
36 |
9 |
2 |
0 |
0 |
0 |
OW |
1716 |
1767 |
394 |
346 |
33 |
7 |
0 |
0 |
VODI |
2447 |
322 |
310 |
1032 |
296 |
61 |
0 |
0 |
ODI |
0 |
20 |
46 |
388 |
793 |
407 |
42 |
0 |
CDI |
0 |
0 |
0 |
8 |
842 |
4373 |
1185 |
0 |
VCDI |
0 |
0 |
0 |
0 |
0 |
54 |
13 |
0 |
|
Date: 2025-07-23:
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 |
80930 |
5714 |
42 |
25 |
2 |
0 |
0 |
0 |
OW |
1890 |
1305 |
491 |
418 |
21 |
0 |
0 |
0 |
VODI |
2330 |
62 |
189 |
1197 |
286 |
10 |
0 |
0 |
ODI |
0 |
3 |
7 |
179 |
872 |
187 |
10 |
0 |
CDI |
0 |
0 |
0 |
9 |
1181 |
3933 |
188 |
0 |
VCDI |
0 |
0 |
0 |
0 |
0 |
1070 |
311 |
0 |
|
|
observations |
|
Ice free |
Ice free near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI near MIZ |
VCDI |
m o d e l |
Ice free |
80668 |
5193 |
34 |
22 |
2 |
0 |
0 |
0 |
OW |
2062 |
1537 |
326 |
335 |
32 |
2 |
0 |
0 |
VODI |
2420 |
321 |
303 |
1033 |
309 |
54 |
3 |
0 |
ODI |
0 |
28 |
62 |
422 |
862 |
505 |
75 |
0 |
CDI |
0 |
5 |
4 |
16 |
1157 |
4584 |
401 |
0 |
VCDI |
0 |
0 |
0 |
0 |
0 |
55 |
30 |
0 |
|
Date: 2025-07-25:
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 |
81337 |
5416 |
39 |
8 |
5 |
0 |
0 |
0 |
OW |
1892 |
1346 |
366 |
363 |
16 |
0 |
0 |
0 |
VODI |
2295 |
178 |
254 |
1052 |
287 |
22 |
0 |
0 |
ODI |
0 |
7 |
18 |
226 |
936 |
326 |
9 |
0 |
CDI |
0 |
0 |
0 |
22 |
982 |
3925 |
216 |
0 |
VCDI |
0 |
0 |
0 |
0 |
2 |
1300 |
17 |
0 |
|
|
observations |
|
Ice free |
Ice free near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI near MIZ |
VCDI |
m o d e l |
Ice free |
81099 |
4847 |
59 |
42 |
14 |
0 |
0 |
0 |
OW |
2039 |
1535 |
277 |
320 |
64 |
1 |
0 |
0 |
VODI |
2386 |
496 |
258 |
904 |
356 |
88 |
14 |
0 |
ODI |
0 |
63 |
77 |
394 |
1018 |
528 |
67 |
0 |
CDI |
0 |
6 |
6 |
11 |
774 |
4830 |
161 |
0 |
VCDI |
0 |
0 |
0 |
0 |
2 |
126 |
0 |
0 |
|
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