Validation of sea ice concentration - American sector
Bulletin date: 2025-01-09
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-01-03:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8567 |
4194 |
163 |
278 |
21 |
0 |
0 |
0 |
| OW |
83 |
536 |
128 |
594 |
382 |
51 |
0 |
0 |
| VODI |
8 |
116 |
51 |
383 |
372 |
201 |
54 |
0 |
| ODI |
0 |
26 |
4 |
210 |
194 |
216 |
128 |
0 |
| CDI |
0 |
18 |
2 |
121 |
127 |
338 |
312 |
1 |
| VCDI |
0 |
0 |
0 |
58 |
174 |
3637 |
10751 |
28732 |
|
...date precedes bulletin
|
Date: 2025-01-05:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7832 |
4571 |
261 |
329 |
125 |
2 |
0 |
0 |
| OW |
98 |
268 |
159 |
652 |
248 |
58 |
0 |
0 |
| VODI |
7 |
172 |
51 |
438 |
347 |
162 |
0 |
0 |
| ODI |
0 |
37 |
8 |
218 |
225 |
218 |
15 |
0 |
| CDI |
0 |
23 |
9 |
104 |
194 |
382 |
46 |
0 |
| VCDI |
0 |
12 |
3 |
60 |
203 |
3448 |
7758 |
32488 |
|
...date precedes bulletin
|
Date: 2025-01-07:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7374 |
4021 |
182 |
348 |
69 |
44 |
0 |
0 |
| OW |
13 |
344 |
140 |
438 |
259 |
37 |
0 |
0 |
| VODI |
6 |
39 |
18 |
736 |
839 |
114 |
0 |
0 |
| ODI |
0 |
0 |
1 |
124 |
452 |
336 |
12 |
0 |
| CDI |
0 |
0 |
0 |
6 |
140 |
704 |
123 |
36 |
| VCDI |
0 |
0 |
0 |
1 |
214 |
2817 |
8823 |
32421 |
|
...date precedes bulletin
|
Date: 2025-01-09:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7346 |
3621 |
62 |
143 |
40 |
37 |
3 |
0 |
| OW |
4 |
489 |
156 |
340 |
295 |
39 |
9 |
0 |
| VODI |
2 |
35 |
39 |
449 |
675 |
307 |
6 |
0 |
| ODI |
0 |
1 |
0 |
83 |
560 |
498 |
21 |
0 |
| CDI |
0 |
0 |
0 |
16 |
229 |
849 |
163 |
25 |
| VCDI |
0 |
0 |
0 |
1 |
91 |
2771 |
9669 |
32157 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7347 |
3940 |
135 |
278 |
57 |
63 |
5 |
0 |
| OW |
4 |
184 |
117 |
452 |
361 |
42 |
8 |
0 |
| VODI |
1 |
21 |
5 |
249 |
746 |
416 |
4 |
0 |
| ODI |
0 |
1 |
0 |
38 |
450 |
572 |
56 |
2 |
| CDI |
0 |
0 |
0 |
13 |
183 |
718 |
191 |
117 |
| VCDI |
0 |
0 |
0 |
2 |
93 |
2690 |
9607 |
32063 |
|
Date: 2025-01-11:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7503 |
3227 |
82 |
86 |
12 |
6 |
0 |
0 |
| OW |
0 |
458 |
121 |
243 |
141 |
84 |
1 |
0 |
| VODI |
0 |
74 |
37 |
354 |
486 |
292 |
167 |
0 |
| ODI |
0 |
6 |
5 |
94 |
574 |
393 |
255 |
5 |
| CDI |
0 |
0 |
0 |
47 |
366 |
606 |
517 |
94 |
| VCDI |
0 |
0 |
0 |
0 |
112 |
2017 |
7904 |
34862 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7503 |
3553 |
126 |
157 |
51 |
9 |
0 |
0 |
| OW |
0 |
185 |
103 |
364 |
206 |
130 |
7 |
0 |
| VODI |
0 |
26 |
15 |
185 |
547 |
320 |
251 |
0 |
| ODI |
0 |
1 |
1 |
81 |
463 |
480 |
313 |
11 |
| CDI |
0 |
0 |
0 |
37 |
304 |
534 |
523 |
49 |
| VCDI |
0 |
0 |
0 |
0 |
120 |
1925 |
7750 |
34901 |
|
Date: 2025-01-13:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7329 |
3404 |
179 |
280 |
17 |
1 |
0 |
0 |
| OW |
0 |
145 |
35 |
320 |
225 |
63 |
0 |
0 |
| VODI |
0 |
38 |
24 |
158 |
470 |
307 |
59 |
0 |
| ODI |
0 |
0 |
0 |
41 |
411 |
581 |
355 |
0 |
| CDI |
0 |
0 |
0 |
6 |
458 |
842 |
437 |
88 |
| VCDI |
0 |
0 |
0 |
28 |
180 |
2239 |
8856 |
33655 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7329 |
3321 |
125 |
164 |
14 |
0 |
0 |
0 |
| OW |
0 |
214 |
86 |
363 |
152 |
22 |
0 |
0 |
| VODI |
0 |
51 |
27 |
206 |
518 |
305 |
17 |
0 |
| ODI |
0 |
1 |
0 |
56 |
388 |
630 |
347 |
0 |
| CDI |
0 |
0 |
0 |
13 |
445 |
881 |
458 |
74 |
| VCDI |
0 |
0 |
0 |
31 |
244 |
2195 |
8885 |
33669 |
|
Date: 2025-01-15:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7112 |
3130 |
189 |
176 |
0 |
0 |
0 |
0 |
| OW |
0 |
233 |
106 |
445 |
99 |
0 |
0 |
0 |
| VODI |
0 |
14 |
5 |
228 |
375 |
139 |
4 |
0 |
| ODI |
0 |
1 |
2 |
21 |
249 |
433 |
96 |
0 |
| CDI |
0 |
0 |
0 |
0 |
239 |
1114 |
733 |
66 |
| VCDI |
0 |
0 |
0 |
0 |
161 |
2409 |
13141 |
30311 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7112 |
3161 |
196 |
238 |
5 |
0 |
0 |
0 |
| OW |
0 |
187 |
90 |
334 |
141 |
7 |
0 |
0 |
| VODI |
0 |
23 |
12 |
251 |
385 |
336 |
62 |
0 |
| ODI |
0 |
6 |
2 |
39 |
176 |
530 |
340 |
2 |
| CDI |
0 |
1 |
2 |
8 |
182 |
766 |
830 |
62 |
| VCDI |
0 |
0 |
0 |
0 |
234 |
2456 |
12742 |
30313 |
|
Date: 2025-01-17:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
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