Validation of sea ice concentration - Full domain
Bulletin date: 2025-08-19
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-08-19:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67081 |
12561 |
15 |
116 |
15 |
1 |
0 |
0 |
| OW |
176 |
1503 |
27 |
174 |
42 |
7 |
0 |
0 |
| VODI |
139 |
2668 |
93 |
731 |
505 |
138 |
18 |
0 |
| ODI |
40 |
3571 |
362 |
3059 |
3675 |
1579 |
280 |
1 |
| CDI |
13 |
1001 |
129 |
2018 |
8282 |
6405 |
1755 |
26 |
| VCDI |
0 |
11 |
4 |
330 |
4220 |
7876 |
3729 |
57 |
|
Date: 2025-08-21:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
69197 |
14838 |
130 |
665 |
137 |
9 |
0 |
0 |
| OW |
12 |
476 |
23 |
211 |
81 |
12 |
5 |
0 |
| VODI |
28 |
902 |
74 |
494 |
478 |
165 |
37 |
0 |
| ODI |
28 |
3509 |
269 |
2273 |
3062 |
1667 |
420 |
0 |
| CDI |
10 |
1185 |
128 |
1947 |
7501 |
6301 |
2404 |
0 |
| VCDI |
0 |
48 |
18 |
467 |
4033 |
6885 |
4304 |
0 |
|
Date: 2025-08-23:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
69196 |
15670 |
147 |
1015 |
282 |
20 |
3 |
0 |
| OW |
8 |
344 |
20 |
154 |
83 |
8 |
6 |
0 |
| VODI |
17 |
834 |
42 |
483 |
467 |
161 |
26 |
0 |
| ODI |
27 |
3425 |
229 |
1927 |
3025 |
1576 |
411 |
0 |
| CDI |
15 |
1323 |
117 |
2003 |
7205 |
6524 |
1853 |
0 |
| VCDI |
0 |
89 |
20 |
584 |
4145 |
7631 |
3318 |
0 |
|
Date: 2025-08-25:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
70922 |
14405 |
156 |
1072 |
359 |
47 |
8 |
0 |
| OW |
18 |
354 |
9 |
139 |
108 |
13 |
6 |
0 |
| VODI |
15 |
888 |
42 |
467 |
398 |
132 |
24 |
0 |
| ODI |
37 |
3424 |
149 |
1876 |
2748 |
1541 |
255 |
0 |
| CDI |
24 |
1366 |
114 |
2097 |
7232 |
6966 |
1490 |
0 |
| VCDI |
0 |
174 |
25 |
651 |
4283 |
8279 |
2120 |
0 |
|
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