Validation of sea ice concentration - American sector
Reference date: 2025-06-26
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-06-20:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
367 |
4441 |
234 |
303 |
43 |
0 |
0 |
0 |
| OW |
0 |
500 |
126 |
299 |
242 |
1 |
0 |
0 |
| VODI |
0 |
245 |
56 |
451 |
1739 |
93 |
7 |
0 |
| ODI |
0 |
356 |
85 |
285 |
1150 |
693 |
99 |
0 |
| CDI |
0 |
38 |
27 |
134 |
1564 |
9995 |
2648 |
3 |
| VCDI |
0 |
0 |
0 |
0 |
560 |
4065 |
14168 |
835 |
|
|
Date: 2025-06-22:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
631 |
4789 |
197 |
277 |
29 |
0 |
0 |
0 |
| OW |
0 |
549 |
99 |
330 |
223 |
8 |
0 |
0 |
| VODI |
0 |
231 |
57 |
329 |
1687 |
321 |
7 |
0 |
| ODI |
0 |
310 |
70 |
329 |
769 |
922 |
67 |
0 |
| CDI |
0 |
30 |
28 |
131 |
2001 |
11807 |
1396 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
198 |
3065 |
10130 |
4835 |
|
|
Date: 2025-06-24:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
936 |
4951 |
160 |
311 |
40 |
0 |
0 |
0 |
| OW |
0 |
604 |
97 |
383 |
169 |
12 |
0 |
0 |
| VODI |
0 |
233 |
63 |
386 |
1054 |
150 |
6 |
0 |
| ODI |
0 |
259 |
74 |
366 |
1929 |
470 |
64 |
0 |
| CDI |
0 |
21 |
17 |
125 |
3079 |
11834 |
1259 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
1880 |
4998 |
8409 |
1510 |
|
|
Date: 2025-06-26:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1572 |
4920 |
195 |
336 |
38 |
0 |
0 |
0 |
| OW |
0 |
585 |
143 |
502 |
111 |
9 |
0 |
0 |
| VODI |
0 |
226 |
86 |
752 |
1152 |
243 |
8 |
0 |
| ODI |
0 |
205 |
58 |
395 |
1269 |
552 |
69 |
0 |
| CDI |
0 |
9 |
14 |
130 |
2187 |
14665 |
886 |
4 |
| VCDI |
0 |
0 |
0 |
7 |
253 |
6590 |
5314 |
2367 |
|
|
Date: 2025-06-28:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1923 |
5334 |
200 |
402 |
36 |
0 |
0 |
0 |
| OW |
0 |
638 |
214 |
608 |
77 |
6 |
0 |
0 |
| VODI |
0 |
418 |
162 |
1559 |
972 |
110 |
29 |
0 |
| ODI |
0 |
148 |
61 |
197 |
758 |
733 |
81 |
0 |
| CDI |
0 |
2 |
7 |
49 |
2512 |
16162 |
333 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
199 |
5125 |
5046 |
1746 |
|
|
Date: 2025-06-30:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2451 |
5206 |
329 |
549 |
30 |
0 |
0 |
0 |
| OW |
0 |
918 |
323 |
1104 |
181 |
7 |
0 |
0 |
| VODI |
0 |
249 |
129 |
869 |
936 |
145 |
35 |
0 |
| ODI |
0 |
120 |
51 |
200 |
1062 |
1011 |
126 |
0 |
| CDI |
0 |
0 |
7 |
96 |
3986 |
15106 |
484 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
96 |
4958 |
3974 |
1114 |
|
|
Date: 2025-07-02:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2764 |
5531 |
394 |
448 |
18 |
0 |
0 |
0 |
| OW |
0 |
1165 |
358 |
1074 |
313 |
4 |
0 |
0 |
| VODI |
0 |
252 |
86 |
623 |
1045 |
126 |
6 |
0 |
| ODI |
0 |
58 |
59 |
187 |
1243 |
1429 |
79 |
0 |
| CDI |
0 |
1 |
3 |
56 |
4536 |
15534 |
283 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
25 |
2904 |
4745 |
503 |
|
|
Date: 2025-07-04:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2892 |
6491 |
464 |
344 |
31 |
0 |
0 |
0 |
| OW |
0 |
1261 |
238 |
861 |
345 |
9 |
0 |
0 |
| VODI |
0 |
224 |
78 |
400 |
1070 |
415 |
21 |
0 |
| ODI |
0 |
35 |
39 |
176 |
1295 |
1547 |
101 |
0 |
| CDI |
0 |
1 |
5 |
43 |
6081 |
13976 |
345 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
72 |
2341 |
4650 |
1 |
|
|
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