Validation of sea ice concentration - American sector
Bulletin date: 2023-11-02
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-10-27:
| 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 |
27741 |
5776 |
212 |
295 |
7 |
0 |
0 |
0 |
| OW |
0 |
409 |
190 |
642 |
265 |
1 |
0 |
0 |
| VODI |
0 |
94 |
71 |
475 |
578 |
128 |
0 |
0 |
| ODI |
0 |
8 |
11 |
165 |
489 |
409 |
0 |
0 |
| CDI |
0 |
0 |
0 |
49 |
428 |
1015 |
49 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
155 |
4348 |
7480 |
9741 |
|
...date precedes bulletin
|
Date: 2023-10-29:
| 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 |
27462 |
5030 |
203 |
396 |
29 |
0 |
0 |
0 |
| OW |
24 |
399 |
193 |
724 |
217 |
4 |
0 |
0 |
| VODI |
1 |
56 |
61 |
561 |
623 |
101 |
0 |
0 |
| ODI |
0 |
0 |
0 |
192 |
588 |
335 |
0 |
0 |
| CDI |
0 |
0 |
0 |
26 |
492 |
1175 |
13 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
132 |
4027 |
7253 |
10914 |
|
...date precedes bulletin
|
Date: 2023-10-31:
| 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 |
25633 |
5141 |
316 |
697 |
116 |
0 |
0 |
0 |
| OW |
0 |
229 |
170 |
639 |
300 |
0 |
0 |
0 |
| VODI |
0 |
6 |
10 |
539 |
664 |
41 |
0 |
0 |
| ODI |
0 |
0 |
0 |
119 |
761 |
297 |
0 |
0 |
| CDI |
0 |
0 |
0 |
10 |
883 |
1029 |
40 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
71 |
2596 |
8012 |
12912 |
|
...date precedes bulletin
|
Date: 2023-11-02:
| 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 |
25465 |
4414 |
286 |
599 |
63 |
0 |
0 |
0 |
| OW |
0 |
378 |
167 |
531 |
521 |
30 |
0 |
0 |
| VODI |
0 |
50 |
25 |
403 |
693 |
167 |
0 |
0 |
| ODI |
0 |
4 |
2 |
155 |
563 |
328 |
10 |
0 |
| CDI |
0 |
0 |
0 |
55 |
516 |
690 |
101 |
0 |
| VCDI |
0 |
0 |
0 |
13 |
337 |
1904 |
6022 |
16739 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
25461 |
4430 |
324 |
623 |
187 |
1 |
0 |
0 |
| OW |
1 |
350 |
123 |
520 |
400 |
28 |
0 |
0 |
| VODI |
3 |
59 |
28 |
391 |
739 |
151 |
0 |
0 |
| ODI |
0 |
7 |
5 |
148 |
548 |
323 |
1 |
0 |
| CDI |
0 |
0 |
0 |
67 |
474 |
696 |
142 |
0 |
| VCDI |
0 |
0 |
0 |
7 |
345 |
1920 |
5990 |
16739 |
|
Date: 2023-11-04:
| 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 |
24906 |
3878 |
320 |
666 |
46 |
0 |
0 |
0 |
| OW |
1 |
439 |
121 |
510 |
360 |
43 |
0 |
0 |
| VODI |
0 |
118 |
68 |
485 |
550 |
343 |
0 |
0 |
| ODI |
0 |
2 |
10 |
150 |
579 |
510 |
7 |
0 |
| CDI |
0 |
0 |
0 |
56 |
504 |
670 |
31 |
0 |
| VCDI |
0 |
0 |
0 |
41 |
424 |
2196 |
7488 |
15709 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24903 |
3923 |
353 |
781 |
95 |
9 |
0 |
0 |
| OW |
1 |
340 |
84 |
421 |
323 |
82 |
0 |
0 |
| VODI |
3 |
173 |
74 |
446 |
572 |
337 |
0 |
0 |
| ODI |
0 |
1 |
8 |
159 |
603 |
491 |
0 |
0 |
| CDI |
0 |
0 |
0 |
64 |
424 |
675 |
18 |
0 |
| VCDI |
0 |
0 |
0 |
37 |
446 |
2168 |
7508 |
15709 |
|
Date: 2023-11-06:
| 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 |
24613 |
3418 |
306 |
299 |
14 |
0 |
0 |
0 |
| OW |
3 |
334 |
219 |
706 |
57 |
0 |
0 |
0 |
| VODI |
3 |
23 |
36 |
927 |
376 |
23 |
0 |
0 |
| ODI |
0 |
3 |
2 |
193 |
1045 |
199 |
0 |
0 |
| CDI |
0 |
0 |
0 |
37 |
381 |
1456 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
37 |
153 |
2916 |
7767 |
15685 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24603 |
3275 |
347 |
681 |
94 |
0 |
0 |
0 |
| OW |
13 |
307 |
127 |
522 |
290 |
25 |
0 |
0 |
| VODI |
3 |
181 |
78 |
638 |
604 |
111 |
0 |
0 |
| ODI |
0 |
15 |
11 |
224 |
508 |
448 |
0 |
0 |
| CDI |
0 |
0 |
0 |
73 |
340 |
891 |
14 |
0 |
| VCDI |
0 |
0 |
0 |
61 |
190 |
3119 |
7753 |
15685 |
|
Date: 2023-11-08:
| 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 |
24219 |
2920 |
328 |
517 |
40 |
0 |
0 |
0 |
| OW |
18 |
289 |
113 |
714 |
174 |
1 |
0 |
0 |
| VODI |
3 |
77 |
22 |
607 |
500 |
10 |
0 |
0 |
| ODI |
0 |
33 |
10 |
192 |
760 |
173 |
4 |
0 |
| CDI |
0 |
2 |
1 |
47 |
377 |
884 |
22 |
0 |
| VCDI |
0 |
0 |
0 |
21 |
267 |
2783 |
6119 |
18984 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24203 |
2689 |
293 |
740 |
78 |
0 |
0 |
0 |
| OW |
34 |
346 |
89 |
551 |
398 |
6 |
0 |
0 |
| VODI |
3 |
177 |
42 |
393 |
581 |
155 |
6 |
0 |
| ODI |
0 |
87 |
46 |
301 |
492 |
338 |
24 |
0 |
| CDI |
0 |
21 |
4 |
67 |
305 |
747 |
33 |
0 |
| VCDI |
0 |
1 |
0 |
46 |
264 |
2605 |
6082 |
18984 |
|
Date: 2023-11-10:
| 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 |
23797 |
2636 |
209 |
285 |
0 |
0 |
0 |
0 |
| OW |
71 |
368 |
146 |
799 |
50 |
1 |
0 |
0 |
| VODI |
4 |
82 |
83 |
678 |
432 |
25 |
0 |
0 |
| ODI |
0 |
40 |
16 |
330 |
569 |
144 |
0 |
0 |
| CDI |
0 |
18 |
8 |
84 |
502 |
528 |
10 |
0 |
| VCDI |
0 |
0 |
0 |
34 |
380 |
3114 |
5696 |
20092 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
23826 |
2394 |
211 |
561 |
17 |
5 |
0 |
0 |
| OW |
31 |
465 |
103 |
589 |
146 |
8 |
0 |
0 |
| VODI |
15 |
170 |
68 |
521 |
618 |
49 |
0 |
0 |
| ODI |
0 |
83 |
73 |
321 |
571 |
185 |
10 |
0 |
| CDI |
0 |
32 |
7 |
180 |
374 |
592 |
73 |
0 |
| VCDI |
0 |
0 |
0 |
38 |
207 |
2973 |
5623 |
20092 |
|
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