Validation of sea ice concentration - European sector
Bulletin date: 2025-10-30
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-10-24:
| 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 |
85818 |
4090 |
154 |
304 |
7 |
0 |
0 |
0 |
| OW |
0 |
49 |
97 |
267 |
85 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
181 |
228 |
25 |
0 |
0 |
| ODI |
0 |
0 |
0 |
42 |
244 |
85 |
0 |
0 |
| CDI |
0 |
0 |
0 |
4 |
377 |
493 |
56 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
19 |
2951 |
4404 |
436 |
|
...date precedes bulletin
|
Date: 2025-10-26:
| 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 |
85525 |
4121 |
196 |
296 |
40 |
0 |
0 |
0 |
| OW |
0 |
42 |
67 |
276 |
110 |
0 |
0 |
0 |
| VODI |
0 |
0 |
1 |
150 |
220 |
36 |
0 |
0 |
| ODI |
0 |
0 |
0 |
28 |
188 |
124 |
0 |
0 |
| CDI |
0 |
0 |
0 |
1 |
229 |
494 |
90 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
7 |
1999 |
5956 |
220 |
|
...date precedes bulletin
|
Date: 2025-10-28:
| 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 |
84991 |
4631 |
199 |
208 |
3 |
0 |
0 |
0 |
| OW |
0 |
15 |
48 |
306 |
47 |
0 |
0 |
0 |
| VODI |
0 |
0 |
1 |
232 |
168 |
3 |
0 |
0 |
| ODI |
0 |
0 |
0 |
39 |
367 |
156 |
0 |
0 |
| CDI |
0 |
0 |
0 |
9 |
221 |
250 |
23 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
2631 |
5717 |
149 |
|
...date precedes bulletin
|
Date: 2025-10-30:
| 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 |
85431 |
4514 |
119 |
75 |
0 |
0 |
0 |
0 |
| OW |
0 |
106 |
95 |
121 |
11 |
0 |
0 |
0 |
| VODI |
0 |
36 |
45 |
284 |
72 |
0 |
0 |
0 |
| ODI |
0 |
1 |
3 |
98 |
231 |
33 |
0 |
0 |
| CDI |
0 |
0 |
1 |
55 |
291 |
194 |
2 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
97 |
1955 |
5743 |
803 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
85431 |
4508 |
110 |
70 |
0 |
0 |
0 |
0 |
| OW |
0 |
112 |
96 |
113 |
4 |
0 |
0 |
0 |
| VODI |
0 |
36 |
53 |
267 |
53 |
0 |
0 |
0 |
| ODI |
0 |
1 |
3 |
121 |
211 |
21 |
0 |
0 |
| CDI |
0 |
0 |
1 |
62 |
329 |
179 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
105 |
1982 |
5745 |
803 |
|
Date: 2025-11-01:
| 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 |
83868 |
5845 |
90 |
251 |
0 |
0 |
0 |
0 |
| OW |
0 |
84 |
133 |
223 |
4 |
0 |
0 |
0 |
| VODI |
0 |
16 |
34 |
253 |
111 |
1 |
0 |
0 |
| ODI |
0 |
2 |
9 |
98 |
165 |
32 |
0 |
0 |
| CDI |
0 |
0 |
0 |
40 |
313 |
270 |
5 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
27 |
2126 |
5711 |
705 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
83868 |
5842 |
88 |
256 |
0 |
0 |
0 |
0 |
| OW |
0 |
88 |
130 |
225 |
4 |
0 |
0 |
0 |
| VODI |
0 |
17 |
38 |
206 |
96 |
0 |
0 |
0 |
| ODI |
0 |
0 |
10 |
119 |
151 |
28 |
0 |
0 |
| CDI |
0 |
0 |
0 |
59 |
317 |
253 |
7 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
52 |
2148 |
5709 |
705 |
|
Date: 2025-11-03:
| 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 |
84937 |
4811 |
110 |
43 |
0 |
0 |
0 |
0 |
| OW |
0 |
179 |
117 |
246 |
21 |
0 |
0 |
0 |
| VODI |
0 |
5 |
10 |
196 |
120 |
2 |
0 |
0 |
| ODI |
0 |
0 |
0 |
56 |
154 |
80 |
0 |
0 |
| CDI |
0 |
0 |
0 |
13 |
253 |
315 |
24 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
28 |
2136 |
5934 |
626 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
84937 |
4746 |
95 |
61 |
0 |
0 |
0 |
0 |
| OW |
0 |
223 |
110 |
131 |
24 |
0 |
0 |
0 |
| VODI |
0 |
26 |
28 |
209 |
93 |
6 |
0 |
0 |
| ODI |
0 |
0 |
4 |
107 |
144 |
43 |
0 |
0 |
| CDI |
0 |
0 |
0 |
42 |
279 |
364 |
106 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
36 |
2120 |
5852 |
626 |
|
Date: 2025-11-05:
| 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 |
84824 |
4858 |
139 |
101 |
0 |
0 |
0 |
0 |
| OW |
9 |
180 |
94 |
187 |
18 |
0 |
0 |
0 |
| VODI |
0 |
6 |
16 |
196 |
84 |
5 |
0 |
0 |
| ODI |
0 |
0 |
4 |
72 |
138 |
42 |
0 |
0 |
| CDI |
0 |
0 |
1 |
51 |
242 |
265 |
1 |
0 |
| VCDI |
0 |
0 |
0 |
7 |
82 |
2319 |
6289 |
186 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
84797 |
4816 |
132 |
121 |
0 |
0 |
0 |
0 |
| OW |
36 |
170 |
73 |
140 |
22 |
0 |
0 |
0 |
| VODI |
0 |
48 |
33 |
191 |
95 |
4 |
0 |
0 |
| ODI |
0 |
8 |
6 |
83 |
147 |
28 |
0 |
0 |
| CDI |
0 |
2 |
10 |
68 |
224 |
324 |
27 |
0 |
| VCDI |
0 |
0 |
0 |
11 |
76 |
2275 |
6263 |
186 |
|
Date: 2025-11-07:
| 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 |
83950 |
5452 |
141 |
156 |
6 |
0 |
0 |
0 |
| OW |
0 |
71 |
110 |
212 |
67 |
0 |
0 |
0 |
| VODI |
0 |
2 |
23 |
194 |
97 |
18 |
0 |
0 |
| ODI |
0 |
0 |
1 |
106 |
114 |
53 |
0 |
0 |
| CDI |
0 |
0 |
0 |
38 |
297 |
346 |
8 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
60 |
2026 |
6725 |
140 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
83950 |
5421 |
201 |
228 |
31 |
0 |
0 |
0 |
| OW |
0 |
103 |
61 |
214 |
61 |
9 |
0 |
0 |
| VODI |
0 |
1 |
13 |
185 |
154 |
36 |
0 |
0 |
| ODI |
0 |
0 |
0 |
59 |
150 |
54 |
9 |
0 |
| CDI |
0 |
0 |
0 |
23 |
223 |
387 |
44 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
22 |
1957 |
6680 |
140 |
|
Generated by /metno/routine/sms/V3/SIconcentrationValidation5/SICmultiWebPage5sector.sh Fri Nov 14 02:31:10 UTC 2025 on arcval2