Validation of sea ice concentration - American sector
Bulletin date: 2021-11-11
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2021-11-05:
| 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 |
7052 |
5488 |
94 |
391 |
152 |
0 |
0 |
0 |
| OW |
42 |
471 |
46 |
424 |
392 |
37 |
0 |
0 |
| VODI |
0 |
223 |
36 |
483 |
494 |
88 |
0 |
0 |
| ODI |
0 |
36 |
12 |
162 |
598 |
134 |
1 |
0 |
| CDI |
0 |
8 |
1 |
25 |
514 |
521 |
19 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
220 |
4869 |
8518 |
14309 |
|
...date precedes bulletin
|
Date: 2021-11-07:
| 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 |
6522 |
4886 |
82 |
484 |
172 |
34 |
0 |
0 |
| OW |
107 |
674 |
51 |
437 |
519 |
63 |
0 |
0 |
| VODI |
0 |
83 |
28 |
455 |
725 |
107 |
7 |
0 |
| ODI |
0 |
65 |
15 |
272 |
646 |
100 |
33 |
0 |
| CDI |
0 |
93 |
7 |
88 |
469 |
295 |
73 |
0 |
| VCDI |
0 |
59 |
8 |
72 |
590 |
4222 |
8049 |
15274 |
|
...date precedes bulletin
|
Date: 2021-11-09:
| 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 |
7008 |
4337 |
77 |
421 |
198 |
20 |
0 |
0 |
| OW |
0 |
136 |
41 |
356 |
212 |
0 |
0 |
0 |
| VODI |
0 |
39 |
7 |
262 |
699 |
78 |
0 |
0 |
| ODI |
0 |
2 |
2 |
185 |
1041 |
441 |
0 |
0 |
| CDI |
0 |
24 |
6 |
37 |
762 |
822 |
41 |
0 |
| VCDI |
0 |
15 |
3 |
57 |
523 |
2491 |
8298 |
17225 |
|
...date precedes bulletin
|
Date: 2021-11-11:
| 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 |
6230 |
4328 |
72 |
349 |
209 |
18 |
0 |
0 |
| OW |
95 |
373 |
41 |
406 |
185 |
6 |
0 |
0 |
| VODI |
2 |
44 |
16 |
321 |
442 |
37 |
0 |
0 |
| ODI |
0 |
0 |
0 |
100 |
622 |
233 |
0 |
0 |
| CDI |
0 |
0 |
0 |
79 |
706 |
932 |
7 |
0 |
| VCDI |
0 |
0 |
0 |
62 |
1049 |
2661 |
7958 |
18283 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6231 |
4320 |
78 |
426 |
214 |
21 |
0 |
0 |
| OW |
91 |
347 |
33 |
328 |
226 |
4 |
0 |
0 |
| VODI |
5 |
73 |
16 |
270 |
416 |
61 |
0 |
0 |
| ODI |
0 |
5 |
2 |
155 |
515 |
184 |
0 |
0 |
| CDI |
0 |
0 |
0 |
91 |
908 |
794 |
3 |
0 |
| VCDI |
0 |
0 |
0 |
47 |
934 |
2823 |
7962 |
18283 |
|
Date: 2021-11-13:
| 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 |
6139 |
3388 |
46 |
356 |
300 |
62 |
0 |
0 |
| OW |
35 |
470 |
48 |
335 |
304 |
68 |
0 |
0 |
| VODI |
51 |
175 |
9 |
169 |
454 |
157 |
0 |
0 |
| ODI |
1 |
9 |
2 |
15 |
369 |
368 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
185 |
1127 |
53 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
379 |
3680 |
8679 |
18433 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6137 |
3414 |
51 |
407 |
311 |
73 |
0 |
0 |
| OW |
32 |
429 |
40 |
269 |
334 |
79 |
0 |
0 |
| VODI |
57 |
187 |
12 |
167 |
398 |
187 |
0 |
0 |
| ODI |
0 |
12 |
2 |
32 |
346 |
301 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
230 |
1059 |
31 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
372 |
3763 |
8701 |
18433 |
|
Date: 2021-11-15:
| 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 |
5822 |
3376 |
41 |
247 |
130 |
107 |
0 |
0 |
| OW |
20 |
374 |
54 |
255 |
164 |
101 |
0 |
0 |
| VODI |
19 |
76 |
10 |
288 |
340 |
109 |
1 |
0 |
| ODI |
1 |
11 |
1 |
22 |
526 |
296 |
7 |
0 |
| CDI |
0 |
0 |
0 |
0 |
198 |
1242 |
126 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
150 |
2750 |
7742 |
21260 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
5741 |
3038 |
46 |
396 |
324 |
206 |
1 |
0 |
| OW |
57 |
460 |
35 |
201 |
213 |
123 |
11 |
0 |
| VODI |
33 |
237 |
20 |
175 |
439 |
216 |
18 |
0 |
| ODI |
31 |
94 |
5 |
30 |
227 |
332 |
21 |
0 |
| CDI |
0 |
8 |
0 |
10 |
122 |
489 |
49 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
183 |
3239 |
7776 |
21260 |
|
Date: 2021-11-17:
| 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 |
6067 |
2566 |
19 |
188 |
239 |
47 |
0 |
0 |
| OW |
57 |
209 |
16 |
276 |
274 |
144 |
0 |
0 |
| VODI |
66 |
145 |
13 |
151 |
504 |
129 |
0 |
0 |
| ODI |
18 |
54 |
3 |
29 |
219 |
363 |
3 |
0 |
| CDI |
0 |
5 |
2 |
14 |
91 |
725 |
99 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
30 |
2471 |
5581 |
25049 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
5935 |
2307 |
20 |
271 |
459 |
186 |
0 |
0 |
| OW |
82 |
276 |
12 |
223 |
349 |
112 |
0 |
0 |
| VODI |
81 |
291 |
11 |
93 |
326 |
403 |
62 |
0 |
| ODI |
101 |
95 |
6 |
51 |
146 |
390 |
49 |
0 |
| CDI |
9 |
10 |
4 |
20 |
44 |
473 |
149 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
33 |
2315 |
5423 |
25049 |
|
Date: 2021-11-19:
| 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 |
5852 |
2516 |
9 |
37 |
46 |
204 |
1 |
0 |
| OW |
13 |
214 |
3 |
29 |
77 |
428 |
8 |
0 |
| VODI |
1 |
184 |
17 |
71 |
160 |
566 |
7 |
0 |
| ODI |
0 |
70 |
13 |
165 |
112 |
429 |
77 |
0 |
| CDI |
0 |
1 |
1 |
51 |
97 |
355 |
244 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
53 |
2258 |
6767 |
24730 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
5746 |
2317 |
6 |
45 |
71 |
536 |
14 |
0 |
| OW |
94 |
209 |
4 |
11 |
102 |
477 |
3 |
0 |
| VODI |
26 |
279 |
11 |
62 |
152 |
588 |
131 |
0 |
| ODI |
0 |
151 |
17 |
157 |
99 |
323 |
243 |
0 |
| CDI |
0 |
29 |
5 |
73 |
76 |
353 |
312 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
45 |
1963 |
6401 |
24730 |
|
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