Validation of sea ice concentration - European sector
Bulletin date: 2025-01-23
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-01-17:
| 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 |
62867 |
13485 |
157 |
157 |
11 |
2 |
3 |
0 |
| OW |
795 |
967 |
139 |
257 |
131 |
37 |
7 |
0 |
| VODI |
1814 |
379 |
110 |
236 |
218 |
137 |
50 |
0 |
| ODI |
1875 |
128 |
51 |
134 |
257 |
215 |
115 |
0 |
| CDI |
0 |
81 |
49 |
174 |
345 |
695 |
901 |
2 |
| VCDI |
0 |
1 |
8 |
40 |
171 |
832 |
9175 |
5654 |
|
...date precedes bulletin
|
Date: 2025-01-19:
| 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 |
62593 |
13402 |
174 |
110 |
10 |
2 |
0 |
0 |
| OW |
959 |
880 |
129 |
271 |
132 |
34 |
0 |
0 |
| VODI |
1823 |
482 |
87 |
221 |
231 |
117 |
1 |
0 |
| ODI |
1887 |
192 |
66 |
156 |
184 |
205 |
31 |
1 |
| CDI |
0 |
105 |
79 |
195 |
373 |
722 |
629 |
7 |
| VCDI |
0 |
3 |
10 |
62 |
191 |
963 |
10674 |
4469 |
|
...date precedes bulletin
|
Date: 2025-01-21:
| 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 |
62492 |
13658 |
257 |
79 |
14 |
1 |
0 |
0 |
| OW |
825 |
814 |
217 |
302 |
83 |
19 |
2 |
0 |
| VODI |
1796 |
239 |
125 |
351 |
343 |
83 |
14 |
0 |
| ODI |
1903 |
129 |
49 |
138 |
312 |
300 |
43 |
0 |
| CDI |
0 |
50 |
35 |
128 |
328 |
1054 |
958 |
1 |
| VCDI |
0 |
0 |
2 |
10 |
44 |
915 |
10358 |
4391 |
|
...date precedes bulletin
|
Date: 2025-01-23:
| 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 |
62331 |
13312 |
94 |
89 |
27 |
3 |
0 |
0 |
| OW |
844 |
943 |
229 |
222 |
76 |
26 |
6 |
0 |
| VODI |
1794 |
420 |
138 |
423 |
288 |
83 |
18 |
0 |
| ODI |
1919 |
201 |
54 |
180 |
393 |
320 |
85 |
0 |
| CDI |
0 |
103 |
50 |
146 |
392 |
1140 |
1001 |
0 |
| VCDI |
0 |
27 |
10 |
33 |
97 |
818 |
9558 |
4969 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
62345 |
13409 |
104 |
94 |
22 |
2 |
0 |
0 |
| OW |
832 |
871 |
224 |
238 |
88 |
27 |
6 |
0 |
| VODI |
1793 |
408 |
132 |
405 |
293 |
90 |
16 |
0 |
| ODI |
1918 |
187 |
53 |
176 |
385 |
324 |
85 |
0 |
| CDI |
0 |
100 |
46 |
137 |
375 |
1139 |
1053 |
0 |
| VCDI |
0 |
31 |
16 |
43 |
110 |
808 |
9508 |
4969 |
|
Date: 2025-01-25:
| 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 |
60376 |
14843 |
103 |
90 |
27 |
10 |
1 |
0 |
| OW |
792 |
1160 |
209 |
226 |
80 |
28 |
24 |
0 |
| VODI |
1795 |
588 |
138 |
397 |
363 |
69 |
23 |
0 |
| ODI |
1923 |
208 |
84 |
188 |
381 |
303 |
55 |
0 |
| CDI |
0 |
89 |
40 |
163 |
317 |
1054 |
1076 |
0 |
| VCDI |
0 |
18 |
23 |
93 |
179 |
1037 |
8987 |
5302 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
60378 |
14927 |
112 |
97 |
29 |
8 |
1 |
0 |
| OW |
789 |
1117 |
204 |
237 |
89 |
35 |
26 |
0 |
| VODI |
1797 |
560 |
128 |
380 |
354 |
79 |
20 |
0 |
| ODI |
1922 |
206 |
88 |
194 |
380 |
303 |
57 |
0 |
| CDI |
0 |
79 |
44 |
158 |
314 |
1046 |
1103 |
0 |
| VCDI |
0 |
17 |
21 |
91 |
181 |
1030 |
8959 |
5302 |
|
Date: 2025-01-27:
| 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 |
59832 |
15615 |
159 |
148 |
24 |
19 |
2 |
0 |
| OW |
680 |
1725 |
208 |
223 |
72 |
38 |
31 |
0 |
| VODI |
1781 |
356 |
248 |
529 |
370 |
88 |
29 |
0 |
| ODI |
1925 |
41 |
45 |
205 |
468 |
252 |
63 |
0 |
| CDI |
0 |
8 |
13 |
118 |
384 |
945 |
496 |
0 |
| VCDI |
0 |
0 |
13 |
27 |
106 |
1282 |
9352 |
4942 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
59832 |
15221 |
156 |
139 |
26 |
22 |
6 |
0 |
| OW |
679 |
1431 |
154 |
191 |
66 |
36 |
36 |
0 |
| VODI |
1771 |
748 |
197 |
333 |
280 |
96 |
33 |
0 |
| ODI |
1936 |
246 |
97 |
273 |
343 |
224 |
69 |
0 |
| CDI |
0 |
89 |
53 |
212 |
443 |
818 |
619 |
0 |
| VCDI |
0 |
10 |
29 |
102 |
266 |
1428 |
9210 |
4942 |
|
Date: 2025-01-29:
| 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 |
61450 |
14394 |
134 |
101 |
20 |
9 |
0 |
0 |
| OW |
727 |
1468 |
197 |
253 |
71 |
39 |
10 |
0 |
| VODI |
1776 |
646 |
189 |
489 |
288 |
66 |
15 |
0 |
| ODI |
1931 |
136 |
78 |
253 |
323 |
146 |
52 |
0 |
| CDI |
0 |
41 |
38 |
137 |
444 |
544 |
524 |
0 |
| VCDI |
0 |
22 |
18 |
104 |
300 |
1465 |
9591 |
4373 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
61448 |
13652 |
125 |
107 |
30 |
17 |
10 |
0 |
| OW |
725 |
1391 |
137 |
191 |
72 |
38 |
20 |
0 |
| VODI |
1762 |
970 |
161 |
391 |
241 |
77 |
32 |
0 |
| ODI |
1949 |
450 |
96 |
213 |
284 |
190 |
89 |
0 |
| CDI |
0 |
180 |
92 |
277 |
392 |
491 |
524 |
0 |
| VCDI |
0 |
64 |
43 |
158 |
427 |
1456 |
9517 |
4373 |
|
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 |
61855 |
13831 |
156 |
75 |
24 |
10 |
1 |
0 |
| OW |
665 |
1603 |
249 |
188 |
54 |
15 |
1 |
0 |
| VODI |
1780 |
763 |
238 |
526 |
217 |
73 |
0 |
0 |
| ODI |
1927 |
200 |
80 |
284 |
382 |
124 |
26 |
0 |
| CDI |
0 |
103 |
86 |
261 |
481 |
576 |
389 |
0 |
| VCDI |
0 |
15 |
29 |
178 |
460 |
1789 |
9312 |
3836 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
61857 |
13066 |
150 |
99 |
21 |
4 |
1 |
0 |
| OW |
659 |
1581 |
201 |
186 |
62 |
17 |
2 |
0 |
| VODI |
1758 |
1013 |
206 |
417 |
201 |
80 |
8 |
0 |
| ODI |
1953 |
482 |
130 |
281 |
311 |
152 |
55 |
0 |
| CDI |
0 |
274 |
92 |
297 |
476 |
510 |
394 |
0 |
| VCDI |
0 |
99 |
59 |
232 |
547 |
1824 |
9269 |
3836 |
|
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