Validation of sea ice concentration - American sector
Bulletin date: 2021-10-28
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2021-10-22:
| 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 |
10836 |
5625 |
50 |
96 |
0 |
0 |
0 |
0 |
| OW |
13 |
730 |
36 |
191 |
36 |
0 |
0 |
0 |
| VODI |
0 |
287 |
39 |
344 |
146 |
3 |
0 |
0 |
| ODI |
0 |
69 |
26 |
238 |
250 |
22 |
0 |
0 |
| CDI |
0 |
14 |
9 |
172 |
446 |
146 |
0 |
0 |
| VCDI |
0 |
0 |
2 |
52 |
666 |
3871 |
6239 |
15212 |
|
...date precedes bulletin
|
Date: 2021-10-24:
| 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 |
10176 |
5612 |
53 |
132 |
10 |
0 |
0 |
0 |
| OW |
25 |
769 |
48 |
327 |
71 |
0 |
0 |
0 |
| VODI |
1 |
249 |
29 |
354 |
265 |
24 |
0 |
0 |
| ODI |
0 |
45 |
29 |
206 |
347 |
71 |
0 |
0 |
| CDI |
0 |
11 |
4 |
126 |
540 |
235 |
55 |
0 |
| VCDI |
0 |
0 |
0 |
26 |
678 |
4424 |
7266 |
13658 |
|
...date precedes bulletin
|
Date: 2021-10-26:
| 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 |
10269 |
5908 |
73 |
172 |
5 |
0 |
0 |
0 |
| OW |
7 |
292 |
58 |
389 |
36 |
3 |
0 |
0 |
| VODI |
0 |
71 |
27 |
511 |
226 |
22 |
0 |
0 |
| ODI |
0 |
2 |
1 |
118 |
468 |
81 |
9 |
0 |
| CDI |
0 |
0 |
0 |
19 |
440 |
570 |
22 |
2 |
| VCDI |
0 |
0 |
0 |
1 |
229 |
3462 |
7394 |
14979 |
|
...date precedes bulletin
|
Date: 2021-10-28:
| 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 |
9330 |
6188 |
70 |
299 |
13 |
0 |
0 |
0 |
| OW |
0 |
428 |
57 |
385 |
90 |
2 |
0 |
0 |
| VODI |
0 |
108 |
30 |
519 |
261 |
22 |
0 |
0 |
| ODI |
0 |
8 |
4 |
168 |
382 |
60 |
0 |
0 |
| CDI |
0 |
0 |
0 |
37 |
483 |
346 |
8 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
134 |
3631 |
7634 |
15169 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9330 |
6282 |
86 |
386 |
34 |
0 |
0 |
0 |
| OW |
0 |
331 |
41 |
289 |
76 |
3 |
0 |
0 |
| VODI |
0 |
107 |
28 |
493 |
210 |
29 |
0 |
0 |
| ODI |
0 |
12 |
6 |
186 |
378 |
63 |
0 |
0 |
| CDI |
0 |
0 |
0 |
54 |
510 |
333 |
7 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
155 |
3633 |
7635 |
15169 |
|
Date: 2021-10-30:
| 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 |
8657 |
6049 |
92 |
407 |
67 |
0 |
0 |
0 |
| OW |
0 |
559 |
57 |
364 |
236 |
8 |
0 |
0 |
| VODI |
0 |
114 |
19 |
366 |
453 |
48 |
0 |
0 |
| ODI |
0 |
1 |
0 |
114 |
411 |
96 |
14 |
0 |
| CDI |
0 |
0 |
0 |
17 |
388 |
433 |
35 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
142 |
2968 |
8382 |
15369 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8657 |
6157 |
97 |
489 |
153 |
0 |
0 |
0 |
| OW |
0 |
439 |
59 |
286 |
157 |
8 |
0 |
0 |
| VODI |
0 |
123 |
12 |
356 |
397 |
45 |
2 |
0 |
| ODI |
0 |
4 |
0 |
109 |
402 |
91 |
15 |
0 |
| CDI |
0 |
0 |
0 |
28 |
413 |
424 |
33 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
175 |
2985 |
8381 |
15369 |
|
Date: 2021-11-01:
| 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 |
8175 |
6271 |
114 |
376 |
28 |
0 |
0 |
0 |
| OW |
0 |
313 |
51 |
515 |
95 |
1 |
0 |
0 |
| VODI |
0 |
77 |
9 |
447 |
531 |
41 |
0 |
0 |
| ODI |
0 |
18 |
0 |
61 |
690 |
293 |
0 |
0 |
| CDI |
0 |
8 |
3 |
34 |
348 |
679 |
11 |
0 |
| VCDI |
0 |
0 |
0 |
16 |
259 |
4145 |
8123 |
14134 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8174 |
5995 |
96 |
569 |
184 |
0 |
0 |
0 |
| OW |
1 |
383 |
44 |
351 |
273 |
20 |
0 |
0 |
| VODI |
0 |
280 |
31 |
293 |
391 |
122 |
0 |
0 |
| ODI |
0 |
29 |
6 |
116 |
322 |
186 |
0 |
0 |
| CDI |
0 |
0 |
0 |
66 |
375 |
367 |
29 |
0 |
| VCDI |
0 |
0 |
0 |
54 |
406 |
4464 |
8105 |
14134 |
|
Date: 2021-11-03:
| 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 |
7327 |
6077 |
102 |
593 |
125 |
0 |
0 |
0 |
| OW |
16 |
461 |
41 |
472 |
244 |
16 |
0 |
0 |
| VODI |
0 |
187 |
28 |
476 |
397 |
56 |
0 |
0 |
| ODI |
0 |
23 |
8 |
129 |
613 |
215 |
0 |
0 |
| CDI |
0 |
1 |
1 |
34 |
550 |
403 |
36 |
0 |
| VCDI |
0 |
0 |
0 |
35 |
333 |
4084 |
8457 |
14326 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7327 |
5771 |
92 |
666 |
224 |
31 |
0 |
0 |
| OW |
16 |
490 |
31 |
507 |
299 |
27 |
0 |
0 |
| VODI |
0 |
355 |
37 |
266 |
582 |
119 |
0 |
0 |
| ODI |
0 |
102 |
11 |
152 |
385 |
130 |
0 |
0 |
| CDI |
0 |
26 |
6 |
83 |
356 |
441 |
23 |
0 |
| VCDI |
0 |
5 |
3 |
65 |
416 |
4026 |
8470 |
14326 |
|
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 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7029 |
5267 |
96 |
518 |
284 |
26 |
0 |
0 |
| OW |
65 |
684 |
47 |
376 |
383 |
80 |
0 |
0 |
| VODI |
0 |
145 |
28 |
425 |
739 |
186 |
0 |
0 |
| ODI |
0 |
100 |
9 |
134 |
436 |
247 |
12 |
0 |
| CDI |
0 |
29 |
9 |
28 |
281 |
504 |
50 |
0 |
| VCDI |
0 |
1 |
0 |
10 |
247 |
4606 |
8476 |
14309 |
|
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