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 |
485 |
181 |
0 |
0 |
0 |
| OW |
12 |
275 |
57 |
222 |
392 |
27 |
0 |
0 |
| VODI |
1 |
251 |
104 |
239 |
255 |
43 |
0 |
0 |
| ODI |
0 |
74 |
97 |
411 |
528 |
133 |
14 |
0 |
| CDI |
0 |
0 |
2 |
86 |
429 |
682 |
160 |
0 |
| VCDI |
0 |
0 |
0 |
13 |
206 |
1469 |
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 |
9446 |
3325 |
215 |
427 |
67 |
3 |
0 |
0 |
| OW |
16 |
222 |
75 |
341 |
313 |
63 |
0 |
0 |
| VODI |
5 |
203 |
78 |
280 |
285 |
108 |
2 |
0 |
| ODI |
0 |
209 |
96 |
363 |
471 |
214 |
27 |
0 |
| CDI |
0 |
10 |
13 |
83 |
508 |
727 |
217 |
0 |
| VCDI |
0 |
0 |
0 |
7 |
110 |
1475 |
10464 |
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 |
9119 |
3227 |
223 |
367 |
118 |
4 |
0 |
0 |
| OW |
8 |
226 |
55 |
214 |
308 |
54 |
0 |
0 |
| VODI |
1 |
332 |
81 |
260 |
437 |
151 |
0 |
0 |
| ODI |
0 |
125 |
62 |
269 |
644 |
260 |
28 |
0 |
| CDI |
0 |
3 |
0 |
29 |
415 |
815 |
289 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
46 |
1009 |
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 |
9298 |
2621 |
166 |
281 |
90 |
9 |
0 |
0 |
| OW |
32 |
211 |
47 |
128 |
208 |
59 |
0 |
0 |
| VODI |
25 |
416 |
117 |
248 |
378 |
198 |
2 |
0 |
| ODI |
11 |
102 |
104 |
309 |
453 |
312 |
19 |
0 |
| CDI |
0 |
0 |
2 |
46 |
275 |
1090 |
225 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
35 |
1083 |
9542 |
17696 |
|
|
Date: 2025-11-14:
| Best estimate |
|
|
...observations not yet available
|
|
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