Validation of sea ice concentration - American sector
Reference date: 2025-12-11
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-12-05:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2922 |
4055 |
97 |
130 |
22 |
3 |
0 |
0 |
| OW |
66 |
96 |
27 |
80 |
64 |
21 |
0 |
0 |
| VODI |
33 |
126 |
42 |
104 |
250 |
247 |
2 |
0 |
| ODI |
11 |
351 |
46 |
193 |
478 |
217 |
17 |
0 |
| CDI |
0 |
133 |
5 |
64 |
610 |
712 |
193 |
0 |
| VCDI |
0 |
0 |
0 |
28 |
189 |
1487 |
11611 |
21119 |
|
|
Date: 2025-12-07:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2626 |
4231 |
102 |
69 |
16 |
2 |
0 |
0 |
| OW |
57 |
131 |
68 |
62 |
24 |
6 |
0 |
0 |
| VODI |
8 |
234 |
66 |
156 |
190 |
51 |
0 |
0 |
| ODI |
0 |
385 |
40 |
189 |
438 |
500 |
20 |
0 |
| CDI |
0 |
4 |
1 |
56 |
409 |
846 |
344 |
0 |
| VCDI |
0 |
0 |
0 |
10 |
310 |
1848 |
9327 |
23025 |
|
|
Date: 2025-12-09:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2693 |
3988 |
81 |
93 |
35 |
8 |
0 |
0 |
| OW |
82 |
145 |
31 |
68 |
36 |
11 |
0 |
0 |
| VODI |
24 |
329 |
56 |
138 |
109 |
57 |
0 |
0 |
| ODI |
4 |
137 |
33 |
125 |
415 |
449 |
5 |
0 |
| CDI |
0 |
4 |
2 |
30 |
436 |
1302 |
396 |
3 |
| VCDI |
0 |
0 |
0 |
2 |
101 |
1424 |
9784 |
23215 |
|
|
Date: 2025-12-11:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2698 |
3947 |
67 |
67 |
12 |
0 |
0 |
0 |
| OW |
88 |
138 |
31 |
41 |
39 |
48 |
0 |
0 |
| VODI |
38 |
118 |
29 |
117 |
35 |
32 |
0 |
0 |
| ODI |
4 |
102 |
23 |
165 |
148 |
124 |
20 |
0 |
| CDI |
0 |
67 |
26 |
115 |
510 |
797 |
166 |
2 |
| VCDI |
0 |
1 |
0 |
3 |
280 |
2625 |
12192 |
20936 |
|
|
Date: 2025-12-13:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2403 |
3630 |
107 |
163 |
74 |
0 |
0 |
0 |
| OW |
64 |
150 |
27 |
55 |
156 |
41 |
0 |
0 |
| VODI |
18 |
168 |
26 |
62 |
95 |
65 |
0 |
0 |
| ODI |
0 |
103 |
22 |
85 |
122 |
104 |
2 |
0 |
| CDI |
0 |
52 |
21 |
82 |
344 |
981 |
253 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
169 |
3524 |
14091 |
18588 |
|
|
Date: 2025-12-15:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1002 |
4175 |
168 |
299 |
142 |
0 |
0 |
0 |
| OW |
28 |
98 |
12 |
54 |
196 |
128 |
6 |
0 |
| VODI |
11 |
151 |
9 |
41 |
125 |
101 |
27 |
0 |
| ODI |
8 |
165 |
31 |
88 |
205 |
223 |
3 |
0 |
| CDI |
0 |
19 |
10 |
53 |
233 |
1318 |
390 |
1 |
| VCDI |
0 |
0 |
0 |
0 |
70 |
2684 |
11289 |
22288 |
|
|
Date: 2025-12-17:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
35 |
2481 |
286 |
531 |
1019 |
353 |
0 |
0 |
| OW |
1 |
96 |
32 |
92 |
98 |
204 |
0 |
0 |
| VODI |
0 |
102 |
21 |
72 |
59 |
257 |
36 |
0 |
| ODI |
0 |
122 |
24 |
53 |
74 |
392 |
26 |
0 |
| CDI |
0 |
92 |
34 |
115 |
164 |
1261 |
411 |
0 |
| VCDI |
0 |
0 |
2 |
6 |
99 |
3182 |
12747 |
21272 |
|
|
Date: 2025-12-19:
| Best estimate |
|
|
...observations not yet available
|
|
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