Validation of sea ice concentration - American sector
Bulletin date: 2024-12-12
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-12-06:
| 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 |
13790 |
4493 |
72 |
79 |
20 |
0 |
0 |
0 |
| OW |
85 |
906 |
136 |
243 |
69 |
0 |
0 |
0 |
| VODI |
3 |
352 |
158 |
610 |
402 |
175 |
0 |
0 |
| ODI |
0 |
26 |
12 |
266 |
371 |
501 |
0 |
0 |
| CDI |
0 |
0 |
0 |
54 |
369 |
633 |
143 |
17 |
| VCDI |
0 |
0 |
0 |
7 |
133 |
1814 |
7868 |
27424 |
|
...date precedes bulletin
|
Date: 2024-12-08:
| 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 |
13618 |
3768 |
62 |
37 |
0 |
0 |
0 |
0 |
| OW |
198 |
1070 |
105 |
198 |
34 |
0 |
0 |
0 |
| VODI |
5 |
458 |
116 |
401 |
329 |
11 |
0 |
0 |
| ODI |
0 |
129 |
51 |
357 |
590 |
474 |
27 |
0 |
| CDI |
0 |
3 |
1 |
56 |
563 |
507 |
260 |
2 |
| VCDI |
0 |
0 |
0 |
2 |
152 |
1930 |
7763 |
27954 |
|
...date precedes bulletin
|
Date: 2024-12-10:
| 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 |
14152 |
3356 |
31 |
68 |
2 |
0 |
0 |
0 |
| OW |
218 |
1299 |
106 |
132 |
5 |
0 |
0 |
0 |
| VODI |
38 |
264 |
136 |
679 |
206 |
4 |
0 |
0 |
| ODI |
0 |
19 |
11 |
299 |
644 |
85 |
1 |
0 |
| CDI |
0 |
2 |
0 |
50 |
466 |
650 |
149 |
1 |
| VCDI |
0 |
0 |
0 |
5 |
296 |
2342 |
8850 |
26665 |
|
...date precedes bulletin
|
Date: 2024-12-12:
| 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 |
14554 |
3385 |
56 |
56 |
5 |
0 |
0 |
0 |
| OW |
222 |
1004 |
97 |
187 |
24 |
0 |
0 |
0 |
| VODI |
36 |
443 |
134 |
412 |
189 |
33 |
0 |
0 |
| ODI |
1 |
43 |
39 |
313 |
280 |
121 |
0 |
0 |
| CDI |
0 |
6 |
3 |
167 |
491 |
547 |
20 |
5 |
| VCDI |
0 |
1 |
1 |
16 |
350 |
3552 |
9602 |
24836 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14667 |
3793 |
89 |
92 |
5 |
0 |
0 |
0 |
| OW |
128 |
687 |
79 |
212 |
40 |
0 |
0 |
0 |
| VODI |
18 |
370 |
123 |
382 |
126 |
35 |
0 |
0 |
| ODI |
0 |
26 |
34 |
307 |
250 |
119 |
0 |
0 |
| CDI |
0 |
4 |
4 |
146 |
568 |
532 |
50 |
25 |
| VCDI |
0 |
2 |
1 |
12 |
350 |
3567 |
9572 |
24816 |
|
Date: 2024-12-14:
| 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 |
13679 |
3858 |
45 |
136 |
2 |
0 |
0 |
0 |
| OW |
255 |
843 |
116 |
292 |
39 |
1 |
0 |
0 |
| VODI |
4 |
397 |
104 |
477 |
197 |
9 |
0 |
0 |
| ODI |
0 |
62 |
51 |
266 |
315 |
90 |
0 |
0 |
| CDI |
0 |
13 |
0 |
43 |
590 |
666 |
36 |
3 |
| VCDI |
0 |
11 |
0 |
0 |
426 |
3967 |
10389 |
23849 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13804 |
4132 |
90 |
227 |
6 |
0 |
0 |
0 |
| OW |
132 |
616 |
91 |
290 |
58 |
2 |
0 |
0 |
| VODI |
2 |
350 |
78 |
393 |
160 |
38 |
0 |
0 |
| ODI |
0 |
69 |
56 |
238 |
272 |
88 |
0 |
0 |
| CDI |
0 |
7 |
1 |
66 |
632 |
690 |
112 |
9 |
| VCDI |
0 |
10 |
0 |
0 |
441 |
3915 |
10313 |
23843 |
|
Date: 2024-12-16:
| 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 |
12939 |
4403 |
62 |
27 |
34 |
1 |
0 |
0 |
| OW |
125 |
786 |
177 |
221 |
42 |
1 |
0 |
0 |
| VODI |
7 |
88 |
62 |
684 |
216 |
0 |
0 |
0 |
| ODI |
2 |
8 |
0 |
150 |
645 |
126 |
0 |
0 |
| CDI |
0 |
5 |
0 |
1 |
452 |
1175 |
83 |
2 |
| VCDI |
0 |
4 |
0 |
0 |
188 |
3216 |
11418 |
23881 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12914 |
4466 |
135 |
179 |
43 |
1 |
0 |
0 |
| OW |
137 |
356 |
83 |
340 |
120 |
1 |
0 |
0 |
| VODI |
19 |
305 |
33 |
310 |
310 |
11 |
0 |
0 |
| ODI |
3 |
125 |
30 |
153 |
389 |
88 |
0 |
0 |
| CDI |
0 |
33 |
20 |
100 |
375 |
845 |
183 |
0 |
| VCDI |
0 |
9 |
0 |
1 |
340 |
3573 |
11318 |
23883 |
|
Date: 2024-12-18:
| 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 |
11946 |
4634 |
137 |
152 |
0 |
19 |
0 |
0 |
| OW |
64 |
684 |
116 |
295 |
92 |
28 |
0 |
0 |
| VODI |
6 |
152 |
63 |
282 |
418 |
47 |
0 |
0 |
| ODI |
0 |
12 |
14 |
168 |
362 |
233 |
5 |
0 |
| CDI |
0 |
0 |
0 |
56 |
431 |
1196 |
174 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
421 |
3242 |
10331 |
25450 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11979 |
4730 |
163 |
229 |
34 |
20 |
0 |
0 |
| OW |
33 |
346 |
99 |
272 |
179 |
34 |
0 |
0 |
| VODI |
4 |
289 |
30 |
244 |
379 |
124 |
1 |
0 |
| ODI |
0 |
75 |
9 |
106 |
302 |
173 |
8 |
0 |
| CDI |
0 |
42 |
29 |
79 |
313 |
751 |
277 |
7 |
| VCDI |
0 |
0 |
0 |
24 |
517 |
3663 |
10224 |
25443 |
|
Date: 2024-12-20:
| 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 |
10659 |
4359 |
154 |
204 |
15 |
0 |
0 |
0 |
| OW |
95 |
626 |
183 |
455 |
88 |
29 |
0 |
0 |
| VODI |
37 |
183 |
52 |
425 |
609 |
181 |
0 |
0 |
| ODI |
0 |
10 |
5 |
149 |
373 |
273 |
2 |
0 |
| CDI |
0 |
0 |
0 |
43 |
337 |
971 |
446 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
208 |
3321 |
8728 |
28005 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10696 |
4507 |
196 |
376 |
150 |
7 |
0 |
0 |
| OW |
95 |
410 |
113 |
283 |
261 |
37 |
0 |
0 |
| VODI |
0 |
182 |
73 |
381 |
450 |
221 |
2 |
0 |
| ODI |
0 |
75 |
10 |
191 |
257 |
356 |
21 |
0 |
| CDI |
0 |
4 |
2 |
45 |
268 |
679 |
401 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
244 |
3475 |
8752 |
28005 |
|
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