Validation of sea ice concentration - American sector
Reference date: 2025-11-13
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-11-07:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9528 |
3480 |
257 |
457 |
90 |
5 |
0 |
0 |
| OW |
10 |
234 |
89 |
314 |
316 |
54 |
0 |
0 |
| VODI |
1 |
250 |
93 |
225 |
274 |
63 |
2 |
0 |
| ODI |
0 |
91 |
105 |
379 |
540 |
187 |
22 |
0 |
| CDI |
0 |
1 |
2 |
91 |
469 |
562 |
143 |
0 |
| VCDI |
0 |
0 |
0 |
10 |
306 |
1509 |
10573 |
15115 |
|
|
Date: 2025-11-09:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9360 |
3187 |
187 |
406 |
97 |
4 |
0 |
0 |
| OW |
33 |
225 |
60 |
343 |
291 |
41 |
0 |
0 |
| VODI |
12 |
230 |
67 |
290 |
365 |
123 |
2 |
0 |
| ODI |
2 |
221 |
86 |
342 |
484 |
293 |
42 |
0 |
| CDI |
0 |
6 |
3 |
61 |
439 |
825 |
230 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
44 |
1260 |
10873 |
15308 |
|
|
Date: 2025-11-11:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9104 |
3001 |
171 |
331 |
174 |
1 |
0 |
0 |
| OW |
14 |
229 |
49 |
165 |
351 |
37 |
0 |
0 |
| VODI |
4 |
384 |
79 |
208 |
348 |
172 |
1 |
0 |
| ODI |
0 |
79 |
78 |
257 |
664 |
317 |
11 |
0 |
| CDI |
0 |
0 |
1 |
35 |
343 |
1013 |
244 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
32 |
825 |
7191 |
19932 |
|
|
Date: 2025-11-13:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9048 |
2826 |
160 |
237 |
80 |
1 |
0 |
0 |
| OW |
10 |
239 |
38 |
148 |
161 |
11 |
0 |
0 |
| VODI |
11 |
487 |
110 |
275 |
319 |
54 |
1 |
0 |
| ODI |
0 |
110 |
68 |
241 |
598 |
181 |
13 |
0 |
| CDI |
0 |
6 |
3 |
59 |
312 |
999 |
171 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
42 |
1322 |
10151 |
17355 |
|
|
Date: 2025-11-15:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9054 |
2714 |
239 |
250 |
42 |
0 |
0 |
0 |
| OW |
18 |
210 |
80 |
156 |
112 |
14 |
0 |
0 |
| VODI |
9 |
219 |
95 |
264 |
178 |
72 |
1 |
0 |
| ODI |
0 |
40 |
27 |
260 |
312 |
182 |
20 |
0 |
| CDI |
0 |
7 |
5 |
69 |
255 |
748 |
152 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
75 |
1831 |
13604 |
14530 |
|
|
Date: 2025-11-17:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8607 |
2738 |
195 |
317 |
98 |
1 |
0 |
0 |
| OW |
0 |
195 |
44 |
138 |
204 |
45 |
0 |
0 |
| VODI |
0 |
187 |
70 |
235 |
228 |
86 |
1 |
0 |
| ODI |
0 |
29 |
21 |
96 |
628 |
167 |
3 |
0 |
| CDI |
0 |
6 |
2 |
30 |
397 |
939 |
124 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
39 |
1800 |
11870 |
16307 |
|
|
Date: 2025-11-19:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8542 |
2195 |
142 |
244 |
227 |
7 |
0 |
0 |
| OW |
1 |
210 |
45 |
108 |
169 |
34 |
0 |
0 |
| VODI |
0 |
301 |
77 |
196 |
255 |
89 |
2 |
0 |
| ODI |
0 |
94 |
24 |
122 |
388 |
391 |
10 |
0 |
| CDI |
0 |
25 |
18 |
69 |
233 |
1157 |
135 |
7 |
| VCDI |
0 |
0 |
1 |
14 |
116 |
2395 |
12940 |
14864 |
|
|
Date: 2025-11-21:
| Best estimate |
|
|
...observations not yet available
|
|
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