Validation of sea ice concentration - Full domain
Reference date: 2025-09-18
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-09-12:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
124246 |
14824 |
630 |
564 |
21 |
0 |
0 |
0 |
| OW |
102 |
5342 |
656 |
1487 |
305 |
14 |
0 |
0 |
| VODI |
0 |
134 |
148 |
2445 |
1321 |
118 |
4 |
0 |
| ODI |
0 |
0 |
8 |
1172 |
4137 |
1330 |
11 |
0 |
| CDI |
0 |
0 |
0 |
11 |
2639 |
13527 |
1818 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
5014 |
4975 |
0 |
|
|
Date: 2025-09-14:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
124679 |
14656 |
554 |
519 |
56 |
2 |
0 |
0 |
| OW |
776 |
4548 |
614 |
1425 |
259 |
16 |
0 |
0 |
| VODI |
6 |
111 |
148 |
2225 |
1304 |
124 |
1 |
0 |
| ODI |
0 |
0 |
0 |
699 |
3810 |
1481 |
58 |
0 |
| CDI |
0 |
0 |
0 |
4 |
1632 |
12685 |
1623 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
5490 |
7499 |
0 |
|
|
Date: 2025-09-16:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
125469 |
14252 |
525 |
567 |
59 |
1 |
0 |
0 |
| OW |
828 |
4465 |
594 |
1359 |
276 |
18 |
0 |
0 |
| VODI |
11 |
68 |
90 |
1918 |
1208 |
161 |
5 |
0 |
| ODI |
0 |
1 |
6 |
477 |
3454 |
1356 |
80 |
0 |
| CDI |
0 |
0 |
0 |
5 |
1326 |
11413 |
1674 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
8 |
3905 |
11377 |
51 |
|
|
Date: 2025-09-18:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
123460 |
16428 |
652 |
600 |
48 |
0 |
0 |
0 |
| OW |
548 |
3954 |
827 |
1615 |
282 |
1 |
0 |
0 |
| VODI |
4 |
28 |
76 |
1573 |
1211 |
172 |
1 |
0 |
| ODI |
0 |
0 |
4 |
573 |
3262 |
1199 |
51 |
0 |
| CDI |
0 |
0 |
0 |
15 |
967 |
8382 |
1476 |
1 |
| VCDI |
0 |
0 |
0 |
0 |
8 |
6003 |
12409 |
1177 |
|
|
Date: 2025-09-20:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
120564 |
19798 |
529 |
414 |
8 |
0 |
0 |
0 |
| OW |
570 |
3948 |
507 |
1317 |
211 |
6 |
0 |
0 |
| VODI |
4 |
140 |
146 |
1257 |
1204 |
169 |
2 |
0 |
| ODI |
0 |
15 |
19 |
251 |
1945 |
2103 |
103 |
1 |
| CDI |
0 |
0 |
2 |
19 |
698 |
7555 |
2012 |
7 |
| VCDI |
0 |
0 |
0 |
0 |
18 |
6314 |
13219 |
1932 |
|
|
Date: 2025-09-22:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
121114 |
19080 |
545 |
409 |
17 |
0 |
0 |
0 |
| OW |
581 |
3595 |
503 |
1091 |
430 |
15 |
0 |
0 |
| VODI |
1 |
93 |
145 |
1060 |
1250 |
183 |
10 |
0 |
| ODI |
0 |
8 |
16 |
217 |
1629 |
1260 |
58 |
0 |
| CDI |
0 |
0 |
2 |
23 |
654 |
5758 |
1773 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
9 |
3512 |
18847 |
3119 |
|
|
Date: 2025-09-24:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
124342 |
15561 |
422 |
512 |
92 |
1 |
0 |
0 |
| OW |
143 |
3972 |
345 |
917 |
378 |
27 |
0 |
0 |
| VODI |
0 |
167 |
138 |
768 |
1180 |
239 |
4 |
0 |
| ODI |
0 |
15 |
25 |
291 |
1403 |
1163 |
72 |
0 |
| CDI |
0 |
0 |
0 |
12 |
560 |
4328 |
1909 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
2505 |
20894 |
4619 |
|
|
Date: 2025-09-26:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
124032 |
15407 |
391 |
404 |
47 |
0 |
0 |
0 |
| OW |
520 |
3346 |
312 |
744 |
538 |
93 |
0 |
0 |
| VODI |
0 |
193 |
144 |
651 |
955 |
573 |
18 |
0 |
| ODI |
0 |
11 |
11 |
212 |
954 |
1268 |
103 |
0 |
| CDI |
0 |
0 |
0 |
5 |
526 |
3258 |
1449 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
15 |
2607 |
19976 |
8244 |
|
|
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