Validation of sea ice concentration - European sector
Bulletin date: 2025-03-20
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-03-14:
| 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 |
59405 |
13745 |
331 |
528 |
101 |
0 |
0 |
0 |
| OW |
22 |
1014 |
227 |
596 |
261 |
12 |
0 |
0 |
| VODI |
0 |
197 |
172 |
797 |
668 |
160 |
0 |
0 |
| ODI |
0 |
40 |
17 |
383 |
794 |
325 |
36 |
0 |
| CDI |
0 |
36 |
11 |
129 |
1172 |
2202 |
948 |
0 |
| VCDI |
0 |
29 |
23 |
114 |
299 |
4959 |
7286 |
3377 |
|
...date precedes bulletin
|
Date: 2025-03-16:
| 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 |
59366 |
13672 |
306 |
348 |
87 |
2 |
0 |
0 |
| OW |
24 |
1166 |
288 |
607 |
226 |
19 |
0 |
0 |
| VODI |
0 |
220 |
206 |
827 |
500 |
93 |
0 |
0 |
| ODI |
0 |
20 |
29 |
450 |
616 |
267 |
5 |
0 |
| CDI |
0 |
18 |
8 |
195 |
1145 |
1826 |
641 |
0 |
| VCDI |
0 |
0 |
8 |
76 |
552 |
5291 |
7870 |
3442 |
|
...date precedes bulletin
|
Date: 2025-03-18:
| 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 |
59754 |
13628 |
284 |
338 |
71 |
0 |
0 |
0 |
| OW |
11 |
867 |
342 |
717 |
264 |
9 |
0 |
0 |
| VODI |
0 |
115 |
103 |
826 |
591 |
41 |
0 |
0 |
| ODI |
0 |
13 |
13 |
301 |
1050 |
290 |
0 |
0 |
| CDI |
0 |
7 |
13 |
99 |
1378 |
2816 |
404 |
0 |
| VCDI |
0 |
1 |
4 |
69 |
330 |
4955 |
8009 |
2703 |
|
...date precedes bulletin
|
Date: 2025-03-20:
| 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 |
59136 |
13885 |
320 |
339 |
57 |
0 |
0 |
0 |
| OW |
0 |
777 |
248 |
818 |
218 |
3 |
0 |
0 |
| VODI |
0 |
189 |
107 |
773 |
615 |
51 |
0 |
0 |
| ODI |
0 |
34 |
17 |
293 |
973 |
327 |
2 |
0 |
| CDI |
0 |
6 |
16 |
132 |
1248 |
2887 |
994 |
0 |
| VCDI |
0 |
0 |
2 |
87 |
432 |
4515 |
7592 |
3323 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
59136 |
13913 |
334 |
357 |
59 |
0 |
0 |
0 |
| OW |
0 |
770 |
227 |
807 |
216 |
4 |
0 |
0 |
| VODI |
0 |
169 |
121 |
763 |
631 |
56 |
0 |
0 |
| ODI |
0 |
33 |
13 |
293 |
977 |
314 |
4 |
0 |
| CDI |
0 |
6 |
14 |
144 |
1273 |
2984 |
932 |
0 |
| VCDI |
0 |
0 |
1 |
78 |
387 |
4425 |
7652 |
3323 |
|
Date: 2025-03-22:
| 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 |
59549 |
13535 |
278 |
320 |
20 |
0 |
0 |
0 |
| OW |
0 |
893 |
321 |
652 |
197 |
8 |
0 |
0 |
| VODI |
0 |
285 |
110 |
739 |
577 |
82 |
0 |
0 |
| ODI |
0 |
75 |
77 |
323 |
731 |
360 |
42 |
0 |
| CDI |
0 |
90 |
58 |
325 |
1187 |
2065 |
1469 |
145 |
| VCDI |
0 |
68 |
18 |
124 |
414 |
3771 |
7376 |
4132 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
59549 |
13566 |
299 |
357 |
27 |
0 |
0 |
0 |
| OW |
0 |
891 |
284 |
651 |
196 |
6 |
0 |
0 |
| VODI |
0 |
264 |
138 |
710 |
617 |
78 |
1 |
0 |
| ODI |
0 |
73 |
69 |
339 |
731 |
357 |
54 |
0 |
| CDI |
0 |
82 |
49 |
282 |
1148 |
2161 |
1494 |
50 |
| VCDI |
0 |
70 |
23 |
144 |
407 |
3684 |
7338 |
4227 |
|
Date: 2025-03-24:
| 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 |
60531 |
13561 |
276 |
326 |
23 |
0 |
0 |
0 |
| OW |
0 |
863 |
459 |
655 |
159 |
1 |
0 |
0 |
| VODI |
0 |
107 |
95 |
928 |
484 |
20 |
0 |
0 |
| ODI |
0 |
9 |
4 |
268 |
1092 |
194 |
0 |
0 |
| CDI |
0 |
8 |
1 |
103 |
987 |
2616 |
190 |
0 |
| VCDI |
0 |
4 |
0 |
29 |
195 |
4484 |
7357 |
4387 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
60531 |
13243 |
269 |
290 |
30 |
0 |
0 |
0 |
| OW |
0 |
928 |
307 |
576 |
147 |
5 |
0 |
0 |
| VODI |
0 |
264 |
202 |
675 |
453 |
42 |
0 |
0 |
| ODI |
0 |
78 |
34 |
419 |
642 |
194 |
0 |
0 |
| CDI |
0 |
30 |
21 |
233 |
1328 |
2229 |
535 |
0 |
| VCDI |
0 |
9 |
2 |
116 |
340 |
4845 |
7012 |
4387 |
|
Date: 2025-03-26:
| 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 |
60163 |
13852 |
371 |
340 |
34 |
0 |
0 |
0 |
| OW |
0 |
808 |
294 |
676 |
162 |
6 |
0 |
0 |
| VODI |
0 |
144 |
140 |
745 |
452 |
46 |
0 |
0 |
| ODI |
0 |
18 |
10 |
367 |
900 |
235 |
0 |
0 |
| CDI |
0 |
24 |
3 |
125 |
1046 |
2360 |
161 |
0 |
| VCDI |
0 |
6 |
0 |
60 |
352 |
4446 |
8298 |
3772 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
60163 |
13534 |
332 |
344 |
37 |
0 |
0 |
0 |
| OW |
0 |
860 |
232 |
570 |
179 |
6 |
0 |
0 |
| VODI |
0 |
325 |
175 |
621 |
422 |
54 |
0 |
0 |
| ODI |
0 |
77 |
47 |
358 |
657 |
231 |
0 |
0 |
| CDI |
0 |
38 |
25 |
296 |
1253 |
2659 |
271 |
0 |
| VCDI |
0 |
18 |
7 |
124 |
398 |
4143 |
8188 |
3772 |
|
Date: 2025-03-28:
| 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 |
61042 |
12920 |
315 |
346 |
34 |
0 |
0 |
0 |
| OW |
0 |
787 |
313 |
695 |
188 |
9 |
0 |
0 |
| VODI |
0 |
112 |
78 |
813 |
422 |
48 |
0 |
0 |
| ODI |
0 |
35 |
8 |
353 |
824 |
261 |
0 |
0 |
| CDI |
0 |
19 |
8 |
124 |
870 |
2608 |
278 |
1 |
| VCDI |
0 |
13 |
4 |
42 |
317 |
3440 |
8587 |
4502 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
61038 |
12547 |
295 |
384 |
48 |
0 |
0 |
0 |
| OW |
4 |
837 |
210 |
598 |
209 |
12 |
0 |
0 |
| VODI |
0 |
349 |
125 |
565 |
367 |
97 |
0 |
0 |
| ODI |
0 |
79 |
70 |
410 |
539 |
267 |
2 |
0 |
| CDI |
0 |
36 |
17 |
373 |
1218 |
2627 |
560 |
0 |
| VCDI |
0 |
38 |
9 |
43 |
274 |
3363 |
8303 |
4503 |
|
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