Validation of sea ice concentration - Full domain
Bulletin date: 2025-08-26
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-08-26:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
70727 |
11096 |
15 |
106 |
15 |
2 |
0 |
0 |
| OW |
150 |
1284 |
30 |
122 |
34 |
3 |
1 |
0 |
| VODI |
152 |
2604 |
99 |
659 |
306 |
113 |
17 |
0 |
| ODI |
75 |
4777 |
269 |
2810 |
3091 |
1643 |
383 |
0 |
| CDI |
28 |
970 |
68 |
1926 |
7610 |
7535 |
1561 |
0 |
| VCDI |
0 |
34 |
6 |
250 |
3711 |
8039 |
2112 |
0 |
|
Date: 2025-08-28:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
71552 |
13870 |
72 |
581 |
116 |
14 |
0 |
0 |
| OW |
25 |
653 |
27 |
181 |
48 |
20 |
1 |
0 |
| VODI |
29 |
1246 |
64 |
584 |
314 |
140 |
17 |
0 |
| ODI |
149 |
3610 |
155 |
2248 |
2744 |
1650 |
138 |
0 |
| CDI |
31 |
1081 |
81 |
1976 |
7020 |
8090 |
826 |
0 |
| VCDI |
0 |
69 |
9 |
396 |
3577 |
9707 |
1322 |
0 |
|
Date: 2025-08-30:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
72035 |
14732 |
137 |
780 |
227 |
6 |
0 |
0 |
| OW |
9 |
486 |
19 |
172 |
72 |
16 |
1 |
0 |
| VODI |
20 |
1000 |
47 |
490 |
366 |
124 |
26 |
0 |
| ODI |
113 |
2875 |
107 |
1918 |
2561 |
1325 |
177 |
0 |
| CDI |
34 |
1110 |
70 |
1818 |
7581 |
7619 |
856 |
0 |
| VCDI |
0 |
148 |
11 |
427 |
4656 |
9197 |
1065 |
0 |
|
Date: 2025-09-01:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
72619 |
14650 |
155 |
1003 |
319 |
33 |
0 |
0 |
| OW |
20 |
457 |
18 |
186 |
73 |
17 |
0 |
0 |
| VODI |
39 |
987 |
35 |
476 |
350 |
142 |
20 |
0 |
| ODI |
132 |
2568 |
126 |
1726 |
2532 |
1276 |
165 |
0 |
| CDI |
77 |
1263 |
74 |
2058 |
7088 |
6395 |
1082 |
0 |
| VCDI |
0 |
228 |
29 |
757 |
5364 |
8515 |
1379 |
0 |
|
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