Validation of sea ice concentration - American sector
Bulletin date: 2025-07-15
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-07-15:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7184 |
4407 |
4 |
70 |
31 |
4 |
0 |
0 |
| OW |
106 |
564 |
3 |
62 |
25 |
6 |
0 |
0 |
| VODI |
30 |
658 |
19 |
220 |
217 |
135 |
7 |
0 |
| ODI |
0 |
433 |
25 |
521 |
1231 |
983 |
61 |
0 |
| CDI |
0 |
181 |
16 |
498 |
3361 |
4494 |
686 |
0 |
| VCDI |
0 |
44 |
3 |
274 |
5636 |
11217 |
2141 |
0 |
|
Date: 2025-07-17:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7874 |
5374 |
24 |
299 |
136 |
51 |
1 |
0 |
| OW |
0 |
85 |
2 |
74 |
60 |
10 |
0 |
0 |
| VODI |
0 |
156 |
12 |
179 |
255 |
117 |
6 |
0 |
| ODI |
0 |
242 |
17 |
392 |
1187 |
804 |
92 |
0 |
| CDI |
0 |
108 |
23 |
468 |
3257 |
4391 |
803 |
0 |
| VCDI |
0 |
83 |
6 |
390 |
5107 |
11356 |
2116 |
0 |
|
Date: 2025-07-19:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8436 |
5153 |
30 |
384 |
236 |
44 |
0 |
0 |
| OW |
5 |
61 |
1 |
45 |
49 |
13 |
0 |
0 |
| VODI |
5 |
153 |
7 |
140 |
191 |
160 |
0 |
0 |
| ODI |
15 |
221 |
17 |
336 |
879 |
1099 |
17 |
0 |
| CDI |
5 |
181 |
25 |
504 |
2471 |
5651 |
140 |
0 |
| VCDI |
3 |
105 |
8 |
415 |
4213 |
13558 |
581 |
0 |
|
Date: 2025-07-21:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9658 |
4323 |
32 |
413 |
249 |
48 |
1 |
0 |
| OW |
4 |
86 |
4 |
61 |
50 |
5 |
4 |
0 |
| VODI |
3 |
164 |
9 |
136 |
222 |
155 |
29 |
0 |
| ODI |
1 |
275 |
23 |
334 |
1017 |
901 |
72 |
0 |
| CDI |
2 |
255 |
17 |
532 |
2927 |
4181 |
348 |
0 |
| VCDI |
0 |
206 |
13 |
629 |
4681 |
11795 |
1692 |
0 |
|
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