Validation of sea ice concentration - American sector
Reference date: 2025-10-16
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-10-10:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13757 |
5214 |
237 |
274 |
31 |
0 |
0 |
0 |
| OW |
0 |
167 |
98 |
397 |
265 |
20 |
0 |
0 |
| VODI |
0 |
29 |
31 |
188 |
347 |
92 |
9 |
0 |
| ODI |
0 |
1 |
5 |
48 |
275 |
253 |
49 |
0 |
| CDI |
0 |
0 |
0 |
3 |
279 |
1626 |
234 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
55 |
4896 |
15349 |
1613 |
|
|
Date: 2025-10-12:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13501 |
4995 |
228 |
318 |
49 |
6 |
0 |
0 |
| OW |
2 |
95 |
49 |
311 |
208 |
60 |
0 |
0 |
| VODI |
0 |
18 |
17 |
133 |
282 |
236 |
8 |
0 |
| ODI |
0 |
0 |
5 |
45 |
202 |
318 |
73 |
0 |
| CDI |
0 |
0 |
0 |
6 |
143 |
1102 |
438 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
6 |
3040 |
17427 |
2521 |
|
|
Date: 2025-10-14:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13382 |
4953 |
231 |
318 |
18 |
0 |
0 |
0 |
| OW |
7 |
95 |
84 |
304 |
134 |
7 |
0 |
0 |
| VODI |
2 |
19 |
36 |
195 |
284 |
80 |
0 |
0 |
| ODI |
0 |
0 |
3 |
110 |
329 |
287 |
14 |
0 |
| CDI |
0 |
0 |
2 |
20 |
159 |
753 |
626 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
38 |
1383 |
13880 |
8089 |
|
|
Date: 2025-10-16:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13125 |
4968 |
234 |
336 |
34 |
1 |
0 |
0 |
| OW |
8 |
98 |
75 |
244 |
191 |
17 |
0 |
0 |
| VODI |
1 |
8 |
35 |
211 |
314 |
95 |
2 |
0 |
| ODI |
0 |
0 |
3 |
67 |
319 |
361 |
58 |
0 |
| CDI |
0 |
0 |
0 |
13 |
80 |
684 |
447 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
1711 |
15413 |
6688 |
|
|
Date: 2025-10-18:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12755 |
5053 |
247 |
309 |
15 |
0 |
0 |
0 |
| OW |
7 |
105 |
65 |
265 |
226 |
49 |
0 |
0 |
| VODI |
0 |
32 |
68 |
190 |
260 |
145 |
0 |
0 |
| ODI |
0 |
0 |
2 |
111 |
297 |
240 |
17 |
0 |
| CDI |
0 |
0 |
0 |
19 |
209 |
891 |
315 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
21 |
1974 |
15297 |
6658 |
|
|
Date: 2025-10-20:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12338 |
5110 |
299 |
295 |
42 |
0 |
0 |
0 |
| OW |
11 |
112 |
79 |
218 |
244 |
53 |
0 |
0 |
| VODI |
2 |
66 |
57 |
145 |
207 |
261 |
2 |
0 |
| ODI |
0 |
1 |
6 |
105 |
206 |
309 |
14 |
0 |
| CDI |
0 |
0 |
0 |
3 |
194 |
648 |
224 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
29 |
2328 |
11113 |
11121 |
|
|
Date: 2025-10-22:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12326 |
4467 |
255 |
514 |
96 |
22 |
0 |
0 |
| OW |
16 |
84 |
50 |
217 |
201 |
64 |
0 |
0 |
| VODI |
0 |
34 |
35 |
128 |
175 |
237 |
22 |
0 |
| ODI |
0 |
1 |
5 |
97 |
230 |
342 |
60 |
0 |
| CDI |
0 |
0 |
0 |
19 |
243 |
723 |
283 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
11 |
1706 |
14968 |
8209 |
|
|
Date: 2025-10-24:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11930 |
4493 |
227 |
293 |
61 |
0 |
0 |
0 |
| OW |
2 |
110 |
61 |
275 |
196 |
6 |
0 |
0 |
| VODI |
0 |
29 |
45 |
145 |
266 |
149 |
21 |
0 |
| ODI |
0 |
3 |
14 |
99 |
240 |
292 |
48 |
0 |
| CDI |
0 |
0 |
0 |
16 |
303 |
998 |
218 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
38 |
2972 |
11335 |
10956 |
|
|
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