Validation of sea ice concentration - American sector
Bulletin date: 2021-11-04
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2021-10-29:
| 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 |
8767 |
6421 |
76 |
339 |
31 |
0 |
0 |
0 |
| OW |
1 |
438 |
62 |
400 |
148 |
4 |
0 |
0 |
| VODI |
0 |
84 |
25 |
437 |
395 |
24 |
0 |
0 |
| ODI |
0 |
3 |
1 |
130 |
393 |
77 |
11 |
0 |
| CDI |
0 |
0 |
0 |
22 |
432 |
415 |
24 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
131 |
3277 |
7834 |
15464 |
|
...date precedes bulletin
|
Date: 2021-10-31:
| 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 |
8330 |
5969 |
86 |
339 |
123 |
0 |
0 |
0 |
| OW |
0 |
546 |
58 |
449 |
360 |
19 |
0 |
0 |
| VODI |
0 |
172 |
29 |
278 |
506 |
61 |
1 |
0 |
| ODI |
0 |
7 |
0 |
139 |
411 |
136 |
11 |
0 |
| CDI |
0 |
0 |
0 |
19 |
428 |
335 |
42 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
168 |
3165 |
7930 |
15749 |
|
...date precedes bulletin
|
Date: 2021-11-02:
| 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 |
7625 |
6325 |
114 |
492 |
149 |
0 |
0 |
0 |
| OW |
0 |
380 |
51 |
505 |
188 |
1 |
0 |
0 |
| VODI |
0 |
86 |
17 |
334 |
564 |
73 |
0 |
0 |
| ODI |
0 |
19 |
2 |
57 |
619 |
320 |
0 |
0 |
| CDI |
0 |
2 |
2 |
31 |
315 |
663 |
34 |
7 |
| VCDI |
0 |
0 |
0 |
34 |
278 |
4529 |
7897 |
14153 |
|
...date precedes bulletin
|
Date: 2021-11-04:
| 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 |
7037 |
5819 |
100 |
391 |
254 |
0 |
0 |
0 |
| OW |
29 |
510 |
38 |
400 |
351 |
71 |
0 |
0 |
| VODI |
0 |
262 |
34 |
563 |
387 |
45 |
0 |
0 |
| ODI |
0 |
59 |
9 |
208 |
503 |
181 |
0 |
0 |
| CDI |
0 |
0 |
2 |
23 |
604 |
457 |
3 |
0 |
| VCDI |
0 |
0 |
0 |
22 |
320 |
4697 |
8498 |
13989 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7064 |
5891 |
102 |
415 |
224 |
50 |
0 |
0 |
| OW |
2 |
438 |
37 |
378 |
345 |
22 |
0 |
0 |
| VODI |
0 |
278 |
37 |
561 |
470 |
42 |
0 |
0 |
| ODI |
0 |
43 |
7 |
205 |
432 |
177 |
0 |
0 |
| CDI |
0 |
0 |
0 |
25 |
575 |
401 |
11 |
0 |
| VCDI |
0 |
0 |
0 |
23 |
373 |
4759 |
8490 |
13989 |
|
Date: 2021-11-06:
| 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 |
6805 |
5280 |
89 |
322 |
198 |
39 |
0 |
0 |
| OW |
68 |
532 |
39 |
401 |
463 |
58 |
0 |
0 |
| VODI |
0 |
104 |
21 |
672 |
500 |
83 |
0 |
0 |
| ODI |
0 |
28 |
9 |
316 |
518 |
117 |
3 |
0 |
| CDI |
0 |
54 |
13 |
116 |
468 |
316 |
48 |
0 |
| VCDI |
0 |
19 |
6 |
52 |
625 |
5163 |
7550 |
14771 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6854 |
5310 |
94 |
386 |
200 |
39 |
0 |
0 |
| OW |
19 |
472 |
32 |
329 |
290 |
51 |
0 |
0 |
| VODI |
0 |
105 |
21 |
677 |
686 |
97 |
0 |
0 |
| ODI |
0 |
39 |
7 |
302 |
498 |
114 |
9 |
0 |
| CDI |
0 |
32 |
9 |
84 |
425 |
271 |
68 |
0 |
| VCDI |
0 |
59 |
14 |
101 |
673 |
5204 |
7524 |
14771 |
|
Date: 2021-11-08:
| 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 |
6993 |
4569 |
85 |
423 |
132 |
0 |
0 |
0 |
| OW |
0 |
168 |
43 |
416 |
169 |
13 |
0 |
0 |
| VODI |
0 |
52 |
9 |
599 |
593 |
82 |
0 |
0 |
| ODI |
0 |
30 |
10 |
202 |
1328 |
315 |
4 |
0 |
| CDI |
0 |
29 |
2 |
22 |
572 |
665 |
72 |
0 |
| VCDI |
0 |
16 |
4 |
46 |
453 |
2760 |
8358 |
16632 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6993 |
4051 |
71 |
499 |
306 |
34 |
0 |
0 |
| OW |
0 |
577 |
44 |
360 |
379 |
66 |
0 |
0 |
| VODI |
0 |
147 |
16 |
264 |
865 |
239 |
15 |
0 |
| ODI |
0 |
14 |
6 |
316 |
694 |
220 |
51 |
0 |
| CDI |
0 |
3 |
2 |
130 |
466 |
348 |
83 |
0 |
| VCDI |
0 |
72 |
14 |
139 |
537 |
2928 |
8285 |
16632 |
|
Date: 2021-11-10:
| 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 |
6620 |
4399 |
68 |
346 |
227 |
0 |
0 |
0 |
| OW |
96 |
214 |
39 |
383 |
176 |
0 |
0 |
0 |
| VODI |
0 |
39 |
14 |
266 |
557 |
31 |
0 |
0 |
| ODI |
0 |
14 |
4 |
65 |
852 |
261 |
0 |
0 |
| CDI |
0 |
0 |
0 |
149 |
951 |
868 |
21 |
0 |
| VCDI |
0 |
7 |
5 |
72 |
765 |
2497 |
8009 |
17851 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6675 |
3731 |
60 |
281 |
273 |
0 |
0 |
0 |
| OW |
41 |
595 |
29 |
321 |
318 |
29 |
0 |
0 |
| VODI |
0 |
321 |
27 |
364 |
811 |
166 |
0 |
0 |
| ODI |
0 |
19 |
9 |
92 |
688 |
401 |
31 |
0 |
| CDI |
0 |
0 |
0 |
78 |
533 |
495 |
87 |
0 |
| VCDI |
0 |
7 |
5 |
145 |
905 |
2566 |
7912 |
17851 |
|
Date: 2021-11-12:
| 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 |
6248 |
3738 |
51 |
345 |
300 |
22 |
0 |
0 |
| OW |
60 |
419 |
42 |
327 |
340 |
29 |
0 |
0 |
| VODI |
42 |
82 |
6 |
244 |
416 |
124 |
0 |
0 |
| ODI |
0 |
1 |
1 |
29 |
472 |
330 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
306 |
1162 |
59 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
759 |
3130 |
8812 |
17970 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6276 |
3468 |
45 |
358 |
358 |
52 |
0 |
0 |
| OW |
54 |
365 |
17 |
205 |
277 |
64 |
4 |
0 |
| VODI |
20 |
372 |
34 |
267 |
621 |
245 |
34 |
0 |
| ODI |
0 |
35 |
4 |
115 |
437 |
756 |
91 |
0 |
| CDI |
0 |
0 |
0 |
0 |
251 |
926 |
184 |
3 |
| VCDI |
0 |
0 |
0 |
0 |
649 |
2754 |
8558 |
17967 |
|
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