Validation of sea ice concentration - European sector
Bulletin date: 2025-11-20
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-11-14:
| 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 |
81783 |
5054 |
127 |
102 |
27 |
0 |
0 |
0 |
| OW |
1178 |
319 |
61 |
83 |
117 |
15 |
0 |
0 |
| VODI |
3117 |
73 |
85 |
164 |
115 |
36 |
0 |
0 |
| ODI |
0 |
0 |
9 |
93 |
182 |
72 |
0 |
0 |
| CDI |
0 |
0 |
0 |
12 |
178 |
667 |
93 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
1251 |
7669 |
180 |
|
...date precedes bulletin
|
Date: 2025-11-16:
| 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 |
80996 |
5287 |
167 |
175 |
18 |
2 |
0 |
0 |
| OW |
1181 |
436 |
82 |
58 |
82 |
26 |
0 |
0 |
| VODI |
3257 |
136 |
101 |
174 |
88 |
39 |
0 |
0 |
| ODI |
0 |
35 |
28 |
130 |
154 |
47 |
1 |
0 |
| CDI |
0 |
7 |
21 |
101 |
331 |
426 |
14 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
32 |
3265 |
5965 |
0 |
|
...date precedes bulletin
|
Date: 2025-11-18:
| 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 |
80507 |
5794 |
131 |
159 |
40 |
9 |
0 |
0 |
| OW |
1104 |
510 |
70 |
58 |
43 |
13 |
0 |
0 |
| VODI |
3269 |
126 |
109 |
162 |
90 |
61 |
1 |
0 |
| ODI |
0 |
10 |
34 |
166 |
157 |
103 |
5 |
0 |
| CDI |
0 |
3 |
2 |
43 |
240 |
524 |
35 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
9 |
3076 |
6150 |
44 |
|
...date precedes bulletin
|
Date: 2025-11-20:
| 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 |
80306 |
5911 |
100 |
92 |
22 |
0 |
0 |
0 |
| OW |
1116 |
446 |
83 |
83 |
57 |
3 |
0 |
0 |
| VODI |
3286 |
157 |
68 |
158 |
127 |
41 |
0 |
0 |
| ODI |
0 |
13 |
41 |
130 |
177 |
114 |
0 |
0 |
| CDI |
0 |
0 |
2 |
58 |
228 |
594 |
61 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
17 |
2356 |
7015 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
80309 |
5880 |
104 |
93 |
23 |
0 |
0 |
0 |
| OW |
1110 |
450 |
81 |
83 |
55 |
3 |
0 |
0 |
| VODI |
3289 |
170 |
65 |
160 |
118 |
31 |
0 |
0 |
| ODI |
0 |
27 |
40 |
117 |
190 |
133 |
2 |
0 |
| CDI |
0 |
0 |
4 |
68 |
226 |
591 |
68 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
16 |
2350 |
7006 |
0 |
|
Date: 2025-11-22:
| 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 |
80255 |
6001 |
76 |
56 |
1 |
0 |
0 |
0 |
| OW |
1111 |
444 |
76 |
90 |
43 |
0 |
0 |
0 |
| VODI |
3298 |
174 |
75 |
164 |
107 |
11 |
0 |
0 |
| ODI |
0 |
32 |
29 |
117 |
131 |
110 |
4 |
0 |
| CDI |
0 |
5 |
8 |
64 |
237 |
521 |
164 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
36 |
1177 |
7586 |
657 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
80266 |
5988 |
78 |
66 |
6 |
0 |
0 |
0 |
| OW |
1101 |
444 |
85 |
104 |
35 |
0 |
0 |
0 |
| VODI |
3297 |
166 |
58 |
148 |
108 |
8 |
0 |
0 |
| ODI |
0 |
50 |
29 |
94 |
140 |
112 |
4 |
0 |
| CDI |
0 |
8 |
14 |
79 |
232 |
509 |
148 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
34 |
1190 |
7602 |
657 |
|
Date: 2025-11-24:
| 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 |
79932 |
6240 |
63 |
60 |
4 |
0 |
0 |
0 |
| OW |
1067 |
584 |
113 |
84 |
38 |
0 |
0 |
0 |
| VODI |
3311 |
94 |
96 |
195 |
107 |
12 |
0 |
0 |
| ODI |
0 |
15 |
12 |
116 |
154 |
31 |
0 |
0 |
| CDI |
0 |
0 |
8 |
50 |
229 |
472 |
50 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
27 |
1972 |
6810 |
916 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
79878 |
6156 |
94 |
97 |
38 |
1 |
0 |
0 |
| OW |
1104 |
485 |
63 |
96 |
55 |
10 |
0 |
0 |
| VODI |
3328 |
196 |
68 |
142 |
102 |
21 |
0 |
0 |
| ODI |
0 |
72 |
42 |
64 |
126 |
56 |
4 |
0 |
| CDI |
0 |
22 |
20 |
85 |
180 |
470 |
91 |
0 |
| VCDI |
0 |
2 |
5 |
21 |
58 |
1929 |
6765 |
916 |
|
Date: 2025-11-26:
| 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 |
79215 |
6886 |
65 |
53 |
1 |
0 |
0 |
0 |
| OW |
1040 |
525 |
137 |
120 |
58 |
11 |
0 |
0 |
| VODI |
3322 |
156 |
78 |
171 |
116 |
24 |
0 |
0 |
| ODI |
0 |
34 |
35 |
99 |
125 |
17 |
0 |
0 |
| CDI |
0 |
25 |
35 |
90 |
251 |
476 |
20 |
0 |
| VCDI |
0 |
0 |
2 |
31 |
60 |
2081 |
6933 |
570 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
79162 |
6780 |
74 |
65 |
8 |
0 |
0 |
0 |
| OW |
1064 |
474 |
111 |
113 |
53 |
27 |
0 |
0 |
| VODI |
3351 |
227 |
68 |
137 |
95 |
13 |
0 |
0 |
| ODI |
0 |
66 |
49 |
111 |
139 |
35 |
2 |
0 |
| CDI |
0 |
62 |
27 |
84 |
223 |
433 |
25 |
0 |
| VCDI |
0 |
17 |
23 |
54 |
93 |
2101 |
6926 |
570 |
|
Date: 2025-11-28:
| 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 |
78615 |
7048 |
102 |
113 |
10 |
0 |
0 |
0 |
| OW |
1064 |
525 |
116 |
189 |
89 |
26 |
0 |
0 |
| VODI |
3346 |
182 |
101 |
180 |
143 |
65 |
0 |
0 |
| ODI |
0 |
53 |
30 |
131 |
129 |
56 |
0 |
0 |
| CDI |
0 |
57 |
27 |
97 |
203 |
484 |
12 |
0 |
| VCDI |
0 |
35 |
18 |
88 |
125 |
2091 |
7294 |
18 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
78542 |
6887 |
139 |
159 |
20 |
3 |
0 |
0 |
| OW |
1083 |
469 |
77 |
175 |
138 |
48 |
0 |
0 |
| VODI |
3398 |
240 |
80 |
101 |
142 |
80 |
0 |
0 |
| ODI |
2 |
75 |
25 |
149 |
74 |
84 |
1 |
0 |
| CDI |
0 |
140 |
35 |
91 |
185 |
388 |
9 |
0 |
| VCDI |
0 |
89 |
38 |
123 |
140 |
2119 |
7296 |
18 |
|
Generated by /metno/routine/sms/V3/SIconcentrationValidation5/SICamsr2webPage5sector.sh Fri Dec 5 02:04:01 UTC 2025 on arcval2