Validation of sea ice concentration - American sector
Bulletin date: 2025-05-27
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-05-27:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
161 |
12 |
136 |
22 |
4 |
0 |
0 |
| OW |
0 |
135 |
4 |
87 |
37 |
7 |
2 |
0 |
| VODI |
0 |
399 |
19 |
300 |
247 |
155 |
33 |
10 |
| ODI |
0 |
158 |
20 |
408 |
526 |
548 |
452 |
117 |
| CDI |
0 |
20 |
8 |
221 |
576 |
1414 |
3158 |
1507 |
| VCDI |
0 |
11 |
1 |
192 |
1230 |
5616 |
14612 |
13028 |
|
Date: 2025-05-29:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
692 |
35 |
242 |
170 |
35 |
0 |
0 |
| OW |
0 |
102 |
6 |
63 |
87 |
26 |
4 |
0 |
| VODI |
0 |
203 |
1 |
181 |
250 |
150 |
76 |
9 |
| ODI |
0 |
113 |
11 |
242 |
455 |
415 |
546 |
139 |
| CDI |
0 |
71 |
8 |
287 |
741 |
1378 |
3386 |
1521 |
| VCDI |
0 |
53 |
7 |
305 |
1881 |
4166 |
15878 |
11658 |
|
Date: 2025-05-31:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
965 |
34 |
313 |
223 |
34 |
10 |
0 |
| OW |
0 |
67 |
0 |
72 |
76 |
29 |
5 |
0 |
| VODI |
0 |
167 |
3 |
129 |
269 |
144 |
74 |
6 |
| ODI |
0 |
106 |
5 |
216 |
456 |
453 |
409 |
139 |
| CDI |
0 |
96 |
5 |
275 |
744 |
1872 |
3245 |
1988 |
| VCDI |
0 |
76 |
5 |
390 |
1125 |
5147 |
12862 |
13359 |
|
Date: 2025-06-02:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
995 |
32 |
485 |
299 |
36 |
1 |
0 |
| OW |
0 |
55 |
3 |
70 |
95 |
26 |
2 |
0 |
| VODI |
0 |
98 |
5 |
152 |
318 |
140 |
34 |
7 |
| ODI |
0 |
108 |
3 |
243 |
563 |
542 |
447 |
114 |
| CDI |
0 |
142 |
3 |
408 |
895 |
1896 |
3339 |
1750 |
| VCDI |
0 |
95 |
2 |
313 |
1346 |
4023 |
11539 |
14969 |
|
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