Validation of sea ice concentration - American sector
Reference date: 2025-07-03
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-06-27:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1703 |
5254 |
198 |
302 |
36 |
0 |
0 |
0 |
| OW |
0 |
628 |
179 |
516 |
83 |
8 |
0 |
0 |
| VODI |
0 |
231 |
72 |
1502 |
1305 |
83 |
15 |
0 |
| ODI |
0 |
187 |
65 |
256 |
754 |
553 |
88 |
0 |
| CDI |
0 |
8 |
9 |
108 |
2603 |
15260 |
631 |
0 |
| VCDI |
0 |
0 |
0 |
7 |
143 |
5864 |
4968 |
2230 |
|
|
Date: 2025-06-29:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2390 |
5068 |
257 |
462 |
29 |
0 |
0 |
0 |
| OW |
0 |
748 |
261 |
815 |
127 |
3 |
0 |
0 |
| VODI |
0 |
324 |
143 |
1385 |
865 |
160 |
16 |
0 |
| ODI |
0 |
132 |
61 |
209 |
879 |
909 |
63 |
0 |
| CDI |
0 |
0 |
7 |
45 |
3284 |
15572 |
421 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
142 |
5682 |
4616 |
774 |
|
|
Date: 2025-07-01:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2586 |
5372 |
353 |
524 |
16 |
0 |
0 |
0 |
| OW |
0 |
985 |
346 |
1178 |
250 |
5 |
0 |
0 |
| VODI |
0 |
254 |
82 |
768 |
954 |
124 |
11 |
0 |
| ODI |
0 |
91 |
50 |
189 |
1444 |
1089 |
66 |
0 |
| CDI |
0 |
3 |
3 |
54 |
4329 |
15477 |
240 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
50 |
2640 |
4258 |
2058 |
|
|
Date: 2025-07-03:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2891 |
5935 |
380 |
402 |
10 |
0 |
0 |
0 |
| OW |
0 |
1281 |
308 |
1045 |
358 |
6 |
0 |
0 |
| VODI |
0 |
233 |
92 |
424 |
1007 |
261 |
12 |
0 |
| ODI |
0 |
48 |
51 |
192 |
1366 |
1380 |
87 |
0 |
| CDI |
0 |
1 |
1 |
42 |
4982 |
15361 |
336 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
38 |
1430 |
5757 |
132 |
|
|
Date: 2025-07-05:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2535 |
7598 |
476 |
494 |
52 |
0 |
0 |
0 |
| OW |
11 |
953 |
195 |
608 |
301 |
8 |
0 |
0 |
| VODI |
0 |
170 |
72 |
457 |
1183 |
398 |
20 |
0 |
| ODI |
0 |
28 |
32 |
145 |
1611 |
1178 |
90 |
0 |
| CDI |
0 |
1 |
5 |
43 |
6244 |
14303 |
114 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
73 |
2681 |
3679 |
89 |
|
|
Date: 2025-07-07:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
3714 |
7473 |
245 |
391 |
105 |
4 |
0 |
0 |
| OW |
2 |
693 |
196 |
484 |
179 |
13 |
0 |
0 |
| VODI |
0 |
118 |
90 |
656 |
1567 |
304 |
13 |
0 |
| ODI |
0 |
1 |
8 |
154 |
2253 |
1272 |
73 |
0 |
| CDI |
0 |
0 |
1 |
8 |
4813 |
15574 |
522 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
2214 |
2705 |
0 |
|
|
Date: 2025-07-09:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6135 |
5591 |
184 |
316 |
86 |
3 |
0 |
0 |
| OW |
7 |
625 |
187 |
399 |
275 |
26 |
2 |
0 |
| VODI |
0 |
90 |
104 |
695 |
1595 |
556 |
11 |
0 |
| ODI |
0 |
0 |
0 |
35 |
1716 |
2583 |
59 |
0 |
| CDI |
0 |
0 |
0 |
13 |
3393 |
16674 |
835 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
7 |
1392 |
2255 |
0 |
|
|
Date: 2025-07-11:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6548 |
5490 |
172 |
348 |
65 |
6 |
3 |
0 |
| OW |
0 |
565 |
146 |
408 |
95 |
6 |
2 |
0 |
| VODI |
0 |
75 |
73 |
594 |
2093 |
624 |
0 |
0 |
| ODI |
0 |
0 |
0 |
18 |
2723 |
2204 |
30 |
0 |
| CDI |
0 |
0 |
1 |
12 |
3464 |
16204 |
2247 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
614 |
1019 |
0 |
|
|
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