Validation of sea ice concentration - Full domain
Reference date: 2025-10-30
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
112737 |
12273 |
602 |
922 |
283 |
10 |
0 |
0 |
| OW |
15 |
352 |
176 |
570 |
757 |
155 |
0 |
0 |
| VODI |
5 |
221 |
186 |
668 |
795 |
738 |
83 |
0 |
| ODI |
0 |
17 |
46 |
852 |
1533 |
982 |
138 |
0 |
| CDI |
0 |
0 |
3 |
89 |
1222 |
3086 |
770 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
115 |
8865 |
24188 |
13551 |
|
|
Date: 2025-10-26:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
112164 |
11520 |
647 |
820 |
187 |
7 |
0 |
0 |
| OW |
8 |
318 |
179 |
761 |
513 |
62 |
0 |
0 |
| VODI |
1 |
183 |
139 |
570 |
709 |
337 |
20 |
0 |
| ODI |
0 |
69 |
47 |
558 |
1288 |
802 |
117 |
0 |
| CDI |
0 |
1 |
4 |
128 |
1499 |
3329 |
888 |
0 |
| VCDI |
0 |
0 |
1 |
23 |
273 |
8053 |
31131 |
9650 |
|
|
Date: 2025-10-28:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
110633 |
11678 |
472 |
1028 |
361 |
3 |
0 |
0 |
| OW |
1 |
342 |
139 |
428 |
723 |
76 |
0 |
0 |
| VODI |
0 |
189 |
132 |
441 |
590 |
423 |
10 |
0 |
| ODI |
0 |
81 |
41 |
356 |
912 |
655 |
92 |
0 |
| CDI |
0 |
1 |
8 |
51 |
1204 |
2542 |
784 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
187 |
8725 |
33865 |
9832 |
|
|
Date: 2025-10-30:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
109107 |
12482 |
394 |
561 |
151 |
22 |
0 |
0 |
| OW |
1 |
481 |
151 |
388 |
413 |
206 |
8 |
0 |
| VODI |
0 |
178 |
156 |
404 |
335 |
851 |
54 |
0 |
| ODI |
0 |
32 |
80 |
390 |
535 |
803 |
118 |
0 |
| CDI |
0 |
0 |
1 |
80 |
764 |
2135 |
723 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
125 |
7509 |
30268 |
17100 |
|
|
Date: 2025-11-01:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
107697 |
13465 |
350 |
461 |
96 |
3 |
0 |
0 |
| OW |
4 |
694 |
198 |
449 |
256 |
26 |
0 |
0 |
| VODI |
1 |
346 |
181 |
352 |
238 |
270 |
101 |
0 |
| ODI |
0 |
73 |
109 |
511 |
646 |
490 |
435 |
0 |
| CDI |
0 |
1 |
7 |
128 |
802 |
1872 |
786 |
2 |
| VCDI |
0 |
0 |
0 |
2 |
70 |
4245 |
27480 |
24159 |
|
|
Date: 2025-11-03:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
108724 |
12071 |
368 |
575 |
141 |
1 |
0 |
0 |
| OW |
14 |
531 |
131 |
286 |
386 |
31 |
0 |
0 |
| VODI |
4 |
419 |
181 |
443 |
461 |
156 |
0 |
0 |
| ODI |
0 |
203 |
96 |
391 |
710 |
346 |
55 |
0 |
| CDI |
0 |
4 |
14 |
105 |
763 |
1382 |
840 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
161 |
5486 |
29028 |
22498 |
|
|
Date: 2025-11-05:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
108300 |
11588 |
414 |
723 |
345 |
3 |
0 |
0 |
| OW |
17 |
474 |
141 |
231 |
331 |
39 |
0 |
0 |
| VODI |
1 |
471 |
180 |
434 |
491 |
149 |
3 |
0 |
| ODI |
0 |
81 |
135 |
534 |
759 |
416 |
29 |
0 |
| CDI |
0 |
2 |
11 |
109 |
561 |
1541 |
422 |
2 |
| VCDI |
0 |
0 |
0 |
15 |
158 |
6322 |
26063 |
25511 |
|
|
Date: 2025-11-07:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
103899 |
14352 |
514 |
860 |
124 |
5 |
0 |
0 |
| OW |
8 |
388 |
147 |
518 |
596 |
72 |
0 |
0 |
| VODI |
1 |
364 |
148 |
420 |
477 |
231 |
6 |
0 |
| ODI |
0 |
126 |
129 |
515 |
801 |
446 |
58 |
0 |
| CDI |
0 |
2 |
3 |
103 |
611 |
1354 |
501 |
4 |
| VCDI |
0 |
0 |
0 |
8 |
311 |
4142 |
29208 |
25554 |
|
|
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