Validation of sea ice concentration - American sector
Reference date: 2025-11-06
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-10-31:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10601 |
4211 |
249 |
296 |
50 |
3 |
0 |
0 |
| OW |
0 |
233 |
104 |
286 |
125 |
15 |
0 |
0 |
| VODI |
1 |
83 |
88 |
212 |
137 |
42 |
1 |
0 |
| ODI |
0 |
8 |
30 |
247 |
271 |
182 |
22 |
0 |
| CDI |
0 |
0 |
1 |
68 |
454 |
1044 |
222 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
30 |
1188 |
11807 |
13529 |
|
|
Date: 2025-11-02:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10424 |
4236 |
195 |
338 |
47 |
1 |
0 |
0 |
| OW |
5 |
357 |
91 |
221 |
128 |
1 |
0 |
0 |
| VODI |
4 |
205 |
114 |
254 |
151 |
24 |
0 |
0 |
| ODI |
0 |
73 |
73 |
262 |
358 |
80 |
17 |
0 |
| CDI |
0 |
10 |
10 |
96 |
516 |
793 |
115 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
48 |
1210 |
11084 |
14297 |
|
|
Date: 2025-11-04:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9985 |
4050 |
250 |
484 |
162 |
0 |
0 |
0 |
| OW |
15 |
304 |
67 |
129 |
153 |
0 |
0 |
0 |
| VODI |
3 |
311 |
121 |
210 |
266 |
22 |
0 |
0 |
| ODI |
0 |
158 |
112 |
395 |
387 |
65 |
13 |
0 |
| CDI |
0 |
6 |
3 |
104 |
467 |
615 |
135 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
72 |
1628 |
12199 |
12949 |
|
|
Date: 2025-11-06:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9628 |
3534 |
283 |
490 |
194 |
0 |
0 |
0 |
| OW |
12 |
274 |
57 |
218 |
381 |
27 |
0 |
0 |
| VODI |
1 |
252 |
106 |
237 |
252 |
43 |
0 |
0 |
| ODI |
0 |
74 |
95 |
412 |
534 |
137 |
14 |
0 |
| CDI |
0 |
0 |
2 |
86 |
423 |
675 |
160 |
0 |
| VCDI |
0 |
0 |
0 |
13 |
207 |
1472 |
9788 |
15759 |
|
|
Date: 2025-11-08:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9440 |
3324 |
218 |
434 |
72 |
4 |
0 |
0 |
| OW |
22 |
224 |
69 |
336 |
317 |
62 |
0 |
0 |
| VODI |
5 |
200 |
80 |
273 |
277 |
110 |
2 |
0 |
| ODI |
0 |
210 |
97 |
367 |
469 |
220 |
31 |
0 |
| CDI |
0 |
11 |
13 |
83 |
503 |
724 |
214 |
0 |
| VCDI |
0 |
0 |
0 |
8 |
116 |
1470 |
10463 |
15372 |
|
|
Date: 2025-11-10:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9113 |
3224 |
222 |
369 |
109 |
4 |
0 |
0 |
| OW |
14 |
230 |
56 |
213 |
337 |
67 |
0 |
0 |
| VODI |
1 |
329 |
81 |
256 |
405 |
137 |
1 |
0 |
| ODI |
0 |
127 |
62 |
271 |
641 |
273 |
32 |
0 |
| CDI |
0 |
3 |
0 |
30 |
427 |
796 |
284 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
49 |
1016 |
8934 |
17724 |
|
|
Date: 2025-11-12:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9303 |
2629 |
171 |
282 |
63 |
2 |
0 |
0 |
| OW |
29 |
227 |
47 |
146 |
258 |
51 |
0 |
0 |
| VODI |
25 |
425 |
131 |
263 |
356 |
191 |
2 |
0 |
| ODI |
9 |
69 |
86 |
294 |
473 |
335 |
20 |
0 |
| CDI |
0 |
0 |
1 |
28 |
255 |
1110 |
212 |
1 |
| VCDI |
0 |
0 |
0 |
1 |
34 |
1062 |
9554 |
17695 |
|
|
Date: 2025-11-14:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9098 |
2806 |
202 |
221 |
55 |
0 |
0 |
0 |
| OW |
16 |
247 |
56 |
138 |
103 |
13 |
0 |
0 |
| VODI |
2 |
442 |
96 |
277 |
132 |
98 |
0 |
0 |
| ODI |
0 |
93 |
53 |
166 |
316 |
258 |
18 |
0 |
| CDI |
0 |
4 |
3 |
64 |
192 |
722 |
185 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
102 |
2059 |
12001 |
15599 |
|
|
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