Validation of sea ice concentration - American sector
Bulletin date: 2024-10-31
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-10-25:
| 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 |
15159 |
4792 |
89 |
137 |
91 |
2 |
0 |
0 |
| OW |
3 |
810 |
169 |
307 |
292 |
33 |
0 |
0 |
| VODI |
0 |
133 |
114 |
310 |
483 |
217 |
3 |
0 |
| ODI |
0 |
14 |
16 |
106 |
359 |
478 |
30 |
0 |
| CDI |
0 |
2 |
4 |
52 |
126 |
1153 |
151 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
20 |
2571 |
11846 |
5793 |
|
...date precedes bulletin
|
Date: 2024-10-27:
| 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 |
12819 |
5648 |
113 |
80 |
3 |
0 |
0 |
0 |
| OW |
0 |
904 |
189 |
297 |
152 |
85 |
0 |
0 |
| VODI |
0 |
153 |
124 |
446 |
478 |
372 |
2 |
0 |
| ODI |
0 |
19 |
10 |
83 |
368 |
563 |
40 |
0 |
| CDI |
0 |
4 |
7 |
30 |
197 |
1122 |
456 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
14 |
1480 |
11514 |
8094 |
|
...date precedes bulletin
|
Date: 2024-10-29:
| 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 |
12189 |
5635 |
98 |
94 |
2 |
0 |
0 |
0 |
| OW |
19 |
650 |
228 |
245 |
41 |
0 |
0 |
0 |
| VODI |
0 |
94 |
105 |
494 |
331 |
23 |
0 |
0 |
| ODI |
0 |
4 |
10 |
158 |
600 |
249 |
6 |
0 |
| CDI |
0 |
0 |
1 |
18 |
415 |
1241 |
365 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
16 |
1649 |
14292 |
6593 |
|
...date precedes bulletin
|
Date: 2024-10-31:
| 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 |
11603 |
5174 |
200 |
154 |
24 |
0 |
0 |
0 |
| OW |
8 |
714 |
218 |
295 |
96 |
1 |
0 |
0 |
| VODI |
0 |
139 |
108 |
475 |
349 |
40 |
1 |
0 |
| ODI |
0 |
13 |
19 |
148 |
488 |
137 |
23 |
0 |
| CDI |
0 |
5 |
10 |
44 |
535 |
615 |
242 |
0 |
| VCDI |
0 |
1 |
2 |
7 |
124 |
2159 |
13279 |
8416 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11609 |
5400 |
230 |
171 |
27 |
0 |
0 |
0 |
| OW |
2 |
515 |
198 |
297 |
90 |
2 |
0 |
0 |
| VODI |
0 |
113 |
103 |
484 |
374 |
41 |
0 |
0 |
| ODI |
0 |
12 |
15 |
129 |
490 |
137 |
25 |
0 |
| CDI |
0 |
5 |
10 |
32 |
462 |
578 |
266 |
0 |
| VCDI |
0 |
1 |
1 |
10 |
173 |
2194 |
13254 |
8416 |
|
Date: 2024-11-02:
| 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 |
10930 |
4898 |
137 |
141 |
88 |
21 |
0 |
0 |
| OW |
5 |
730 |
192 |
363 |
176 |
56 |
0 |
0 |
| VODI |
0 |
202 |
94 |
325 |
387 |
182 |
0 |
0 |
| ODI |
0 |
13 |
31 |
98 |
354 |
340 |
6 |
0 |
| CDI |
0 |
0 |
5 |
60 |
335 |
529 |
226 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
101 |
1943 |
10601 |
12293 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10925 |
5127 |
176 |
171 |
102 |
31 |
0 |
0 |
| OW |
10 |
538 |
168 |
336 |
167 |
59 |
0 |
0 |
| VODI |
0 |
168 |
89 |
348 |
425 |
192 |
0 |
0 |
| ODI |
0 |
10 |
20 |
81 |
378 |
367 |
13 |
0 |
| CDI |
0 |
0 |
6 |
50 |
269 |
472 |
206 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
100 |
1950 |
10614 |
12293 |
|
Date: 2024-11-04:
| 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 |
10346 |
4236 |
160 |
198 |
20 |
0 |
0 |
0 |
| OW |
12 |
672 |
194 |
315 |
73 |
3 |
0 |
0 |
| VODI |
0 |
149 |
179 |
603 |
422 |
33 |
0 |
0 |
| ODI |
0 |
3 |
14 |
101 |
650 |
290 |
9 |
0 |
| CDI |
0 |
0 |
0 |
28 |
315 |
1233 |
154 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
41 |
2504 |
12610 |
10296 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10317 |
4353 |
213 |
375 |
44 |
0 |
0 |
0 |
| OW |
36 |
532 |
209 |
366 |
295 |
23 |
2 |
0 |
| VODI |
5 |
123 |
97 |
363 |
572 |
241 |
17 |
0 |
| ODI |
0 |
32 |
19 |
80 |
320 |
499 |
23 |
0 |
| CDI |
0 |
16 |
4 |
47 |
197 |
615 |
86 |
0 |
| VCDI |
0 |
4 |
5 |
17 |
93 |
2685 |
12645 |
10296 |
|
Date: 2024-11-06:
| 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 |
9455 |
3924 |
202 |
308 |
162 |
0 |
0 |
0 |
| OW |
11 |
651 |
162 |
353 |
238 |
10 |
0 |
0 |
| VODI |
5 |
158 |
152 |
440 |
551 |
89 |
0 |
0 |
| ODI |
0 |
18 |
24 |
179 |
463 |
274 |
5 |
0 |
| CDI |
0 |
7 |
5 |
60 |
360 |
798 |
128 |
0 |
| VCDI |
0 |
1 |
3 |
7 |
83 |
2379 |
12484 |
11717 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9457 |
3934 |
227 |
261 |
136 |
8 |
0 |
0 |
| OW |
9 |
546 |
199 |
516 |
385 |
71 |
0 |
0 |
| VODI |
5 |
201 |
79 |
377 |
635 |
285 |
22 |
0 |
| ODI |
0 |
39 |
26 |
110 |
396 |
402 |
68 |
0 |
| CDI |
0 |
22 |
9 |
64 |
220 |
663 |
261 |
0 |
| VCDI |
0 |
17 |
8 |
19 |
85 |
2121 |
12266 |
11717 |
|
Date: 2024-11-08:
| 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 |
8972 |
3483 |
221 |
309 |
29 |
0 |
0 |
0 |
| OW |
5 |
536 |
143 |
337 |
368 |
73 |
0 |
0 |
| VODI |
0 |
155 |
53 |
237 |
652 |
413 |
9 |
0 |
| ODI |
0 |
92 |
7 |
50 |
514 |
514 |
27 |
0 |
| CDI |
0 |
38 |
7 |
21 |
169 |
928 |
194 |
0 |
| VCDI |
0 |
20 |
15 |
30 |
57 |
1389 |
12202 |
13597 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8977 |
3418 |
206 |
349 |
86 |
11 |
0 |
0 |
| OW |
0 |
517 |
153 |
347 |
500 |
110 |
7 |
0 |
| VODI |
0 |
162 |
48 |
217 |
683 |
606 |
49 |
0 |
| ODI |
0 |
115 |
16 |
20 |
345 |
720 |
98 |
0 |
| CDI |
0 |
47 |
4 |
18 |
117 |
741 |
404 |
0 |
| VCDI |
0 |
65 |
19 |
33 |
58 |
1129 |
11874 |
13597 |
|
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