Validation of sea ice concentration - American sector
Bulletin date: 2023-10-05
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-09-29:
| 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 |
22885 |
5905 |
274 |
410 |
62 |
4 |
0 |
0 |
| OW |
0 |
270 |
160 |
513 |
86 |
9 |
0 |
0 |
| VODI |
0 |
4 |
25 |
480 |
529 |
31 |
0 |
0 |
| ODI |
0 |
0 |
0 |
90 |
663 |
239 |
6 |
0 |
| CDI |
0 |
0 |
0 |
1 |
264 |
946 |
489 |
27 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
277 |
4620 |
6597 |
|
...date precedes bulletin
|
Date: 2023-10-01:
| 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 |
22905 |
5529 |
246 |
373 |
34 |
0 |
0 |
0 |
| OW |
0 |
500 |
196 |
561 |
192 |
2 |
0 |
0 |
| VODI |
0 |
20 |
36 |
509 |
486 |
83 |
0 |
0 |
| ODI |
0 |
0 |
2 |
124 |
563 |
298 |
4 |
0 |
| CDI |
0 |
0 |
0 |
1 |
306 |
885 |
426 |
1 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
491 |
6384 |
4709 |
|
...date precedes bulletin
|
Date: 2023-10-03:
| 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 |
21526 |
6463 |
431 |
789 |
59 |
0 |
0 |
0 |
| OW |
0 |
66 |
89 |
438 |
260 |
3 |
0 |
0 |
| VODI |
0 |
3 |
10 |
371 |
453 |
140 |
0 |
0 |
| ODI |
0 |
0 |
0 |
74 |
494 |
465 |
0 |
0 |
| CDI |
0 |
0 |
0 |
1 |
263 |
1281 |
113 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
1632 |
10066 |
376 |
|
...date precedes bulletin
|
Date: 2023-10-05:
| 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 |
19394 |
7247 |
444 |
904 |
166 |
15 |
0 |
0 |
| OW |
0 |
217 |
71 |
577 |
583 |
91 |
0 |
0 |
| VODI |
0 |
6 |
2 |
159 |
577 |
368 |
0 |
0 |
| ODI |
0 |
1 |
0 |
34 |
201 |
685 |
38 |
0 |
| CDI |
0 |
0 |
0 |
7 |
124 |
714 |
821 |
5 |
| VCDI |
0 |
0 |
0 |
0 |
11 |
281 |
7022 |
5101 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
19394 |
7378 |
470 |
1067 |
264 |
16 |
0 |
0 |
| OW |
0 |
86 |
44 |
398 |
491 |
56 |
0 |
0 |
| VODI |
0 |
6 |
3 |
160 |
516 |
348 |
0 |
0 |
| ODI |
0 |
1 |
0 |
46 |
234 |
572 |
26 |
0 |
| CDI |
0 |
0 |
0 |
10 |
134 |
777 |
736 |
5 |
| VCDI |
0 |
0 |
0 |
0 |
23 |
385 |
7119 |
5101 |
|
Date: 2023-10-07:
| 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 |
18869 |
6094 |
452 |
1108 |
305 |
43 |
3 |
0 |
| OW |
0 |
280 |
102 |
573 |
862 |
165 |
30 |
0 |
| VODI |
0 |
14 |
15 |
104 |
562 |
630 |
114 |
0 |
| ODI |
0 |
2 |
0 |
24 |
87 |
650 |
201 |
0 |
| CDI |
0 |
0 |
0 |
1 |
25 |
562 |
785 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
65 |
5122 |
8017 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18869 |
6225 |
504 |
1329 |
494 |
45 |
2 |
0 |
| OW |
0 |
150 |
59 |
331 |
670 |
179 |
24 |
0 |
| VODI |
0 |
13 |
6 |
121 |
526 |
493 |
77 |
0 |
| ODI |
0 |
2 |
0 |
28 |
124 |
584 |
173 |
0 |
| CDI |
0 |
0 |
0 |
1 |
27 |
699 |
634 |
1 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
115 |
5345 |
8016 |
|
Date: 2023-10-09:
| 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 |
18401 |
6219 |
426 |
737 |
127 |
7 |
0 |
0 |
| OW |
0 |
23 |
66 |
533 |
234 |
33 |
0 |
0 |
| VODI |
0 |
0 |
3 |
336 |
463 |
91 |
6 |
0 |
| ODI |
0 |
0 |
0 |
24 |
791 |
271 |
36 |
0 |
| CDI |
0 |
0 |
0 |
1 |
129 |
1302 |
417 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
95 |
4320 |
10775 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18401 |
6120 |
459 |
1141 |
516 |
123 |
0 |
0 |
| OW |
0 |
122 |
33 |
378 |
564 |
235 |
17 |
0 |
| VODI |
0 |
0 |
3 |
103 |
537 |
656 |
94 |
0 |
| ODI |
0 |
0 |
0 |
8 |
113 |
511 |
329 |
0 |
| CDI |
0 |
0 |
0 |
1 |
14 |
230 |
874 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
44 |
3465 |
10775 |
|
Date: 2023-10-11:
| 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 |
17816 |
6116 |
409 |
873 |
217 |
0 |
0 |
0 |
| OW |
3 |
78 |
39 |
445 |
436 |
16 |
0 |
0 |
| VODI |
0 |
21 |
11 |
181 |
642 |
114 |
2 |
0 |
| ODI |
0 |
4 |
1 |
20 |
530 |
408 |
20 |
0 |
| CDI |
0 |
0 |
0 |
0 |
94 |
1145 |
431 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
1 |
409 |
4400 |
10983 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17819 |
5995 |
401 |
1057 |
608 |
105 |
0 |
0 |
| OW |
0 |
165 |
41 |
326 |
593 |
238 |
11 |
0 |
| VODI |
0 |
51 |
16 |
116 |
591 |
676 |
185 |
0 |
| ODI |
0 |
7 |
2 |
20 |
107 |
476 |
380 |
0 |
| CDI |
0 |
1 |
0 |
0 |
20 |
425 |
637 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
1 |
172 |
3640 |
10983 |
|
Date: 2023-10-13:
| 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 |
17531 |
5679 |
355 |
686 |
219 |
12 |
0 |
0 |
| OW |
0 |
240 |
124 |
488 |
555 |
56 |
0 |
0 |
| VODI |
0 |
26 |
38 |
232 |
560 |
164 |
0 |
0 |
| ODI |
0 |
0 |
1 |
77 |
414 |
362 |
7 |
0 |
| CDI |
0 |
0 |
0 |
11 |
117 |
970 |
197 |
1 |
| VCDI |
0 |
0 |
0 |
2 |
22 |
1079 |
5988 |
9653 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17531 |
5674 |
395 |
786 |
488 |
138 |
0 |
0 |
| OW |
0 |
231 |
89 |
364 |
618 |
246 |
1 |
0 |
| VODI |
0 |
36 |
29 |
247 |
528 |
694 |
114 |
0 |
| ODI |
0 |
4 |
5 |
84 |
168 |
484 |
449 |
0 |
| CDI |
0 |
0 |
0 |
14 |
77 |
222 |
600 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
8 |
859 |
5028 |
9654 |
|
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