Validation of sea ice concentration - American sector
Bulletin date: 2021-10-07
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2021-10-01:
| 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 |
11513 |
7867 |
102 |
408 |
74 |
0 |
0 |
0 |
| OW |
0 |
345 |
47 |
435 |
270 |
31 |
0 |
0 |
| VODI |
0 |
83 |
16 |
302 |
680 |
209 |
0 |
0 |
| ODI |
0 |
33 |
5 |
48 |
738 |
1933 |
19 |
0 |
| CDI |
0 |
23 |
7 |
42 |
322 |
2482 |
809 |
13 |
| VCDI |
0 |
8 |
3 |
62 |
266 |
2305 |
6894 |
7472 |
|
...date precedes bulletin
|
Date: 2021-10-03:
| 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 |
11904 |
6965 |
118 |
450 |
96 |
0 |
0 |
0 |
| OW |
0 |
413 |
41 |
390 |
320 |
37 |
0 |
0 |
| VODI |
0 |
97 |
27 |
273 |
519 |
285 |
0 |
0 |
| ODI |
0 |
18 |
6 |
81 |
351 |
1417 |
33 |
0 |
| CDI |
0 |
3 |
2 |
26 |
220 |
2013 |
1634 |
2 |
| VCDI |
0 |
0 |
0 |
11 |
229 |
608 |
8465 |
8812 |
|
...date precedes bulletin
|
Date: 2021-10-05:
| 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 |
12123 |
6930 |
78 |
209 |
14 |
0 |
0 |
0 |
| OW |
0 |
472 |
69 |
333 |
89 |
0 |
0 |
0 |
| VODI |
0 |
72 |
29 |
416 |
365 |
14 |
0 |
0 |
| ODI |
0 |
0 |
0 |
76 |
719 |
188 |
55 |
4 |
| CDI |
0 |
0 |
0 |
7 |
350 |
1498 |
494 |
13 |
| VCDI |
0 |
0 |
0 |
12 |
172 |
949 |
6908 |
13208 |
|
...date precedes bulletin
|
Date: 2021-10-07:
| 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 |
12720 |
6152 |
68 |
184 |
7 |
0 |
0 |
0 |
| OW |
0 |
573 |
58 |
338 |
106 |
0 |
0 |
0 |
| VODI |
0 |
110 |
27 |
387 |
379 |
79 |
0 |
0 |
| ODI |
0 |
6 |
5 |
83 |
568 |
278 |
5 |
0 |
| CDI |
0 |
0 |
0 |
10 |
236 |
1501 |
353 |
8 |
| VCDI |
0 |
0 |
0 |
13 |
50 |
1690 |
6555 |
13317 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12720 |
6182 |
80 |
261 |
24 |
0 |
0 |
0 |
| OW |
0 |
506 |
48 |
260 |
121 |
0 |
0 |
0 |
| VODI |
0 |
146 |
27 |
382 |
385 |
78 |
0 |
0 |
| ODI |
0 |
7 |
3 |
94 |
461 |
317 |
6 |
0 |
| CDI |
0 |
0 |
0 |
5 |
306 |
1202 |
246 |
8 |
| VCDI |
0 |
0 |
0 |
13 |
49 |
1951 |
6661 |
13317 |
|
Date: 2021-10-09:
| 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 |
12317 |
5818 |
72 |
298 |
18 |
0 |
0 |
0 |
| OW |
7 |
443 |
64 |
565 |
181 |
0 |
0 |
0 |
| VODI |
0 |
116 |
23 |
363 |
500 |
80 |
0 |
0 |
| ODI |
0 |
7 |
6 |
87 |
409 |
419 |
19 |
0 |
| CDI |
0 |
0 |
0 |
23 |
321 |
1135 |
370 |
4 |
| VCDI |
0 |
0 |
1 |
15 |
175 |
1685 |
7292 |
13033 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12324 |
5733 |
84 |
431 |
51 |
0 |
0 |
0 |
| OW |
0 |
506 |
54 |
413 |
142 |
1 |
0 |
0 |
| VODI |
0 |
136 |
22 |
398 |
574 |
73 |
0 |
0 |
| ODI |
0 |
9 |
5 |
78 |
369 |
344 |
60 |
0 |
| CDI |
0 |
0 |
0 |
16 |
304 |
1048 |
243 |
4 |
| VCDI |
0 |
0 |
1 |
15 |
164 |
1853 |
7378 |
13033 |
|
Date: 2021-10-11:
| 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 |
11560 |
6377 |
71 |
144 |
1 |
0 |
0 |
0 |
| OW |
1 |
287 |
55 |
420 |
44 |
0 |
0 |
0 |
| VODI |
0 |
43 |
22 |
418 |
409 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
27 |
870 |
141 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
183 |
1691 |
102 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
39 |
1382 |
7716 |
13863 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11560 |
5976 |
85 |
359 |
56 |
0 |
0 |
0 |
| OW |
1 |
611 |
30 |
272 |
312 |
7 |
0 |
0 |
| VODI |
0 |
107 |
30 |
295 |
580 |
219 |
0 |
0 |
| ODI |
0 |
13 |
3 |
75 |
338 |
353 |
25 |
0 |
| CDI |
0 |
0 |
0 |
8 |
210 |
943 |
245 |
11 |
| VCDI |
0 |
0 |
0 |
0 |
50 |
1692 |
7548 |
13852 |
|
Date: 2021-10-13:
| 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 |
11783 |
6108 |
58 |
127 |
0 |
0 |
0 |
0 |
| OW |
4 |
437 |
42 |
260 |
22 |
0 |
0 |
0 |
| VODI |
0 |
140 |
33 |
458 |
200 |
4 |
0 |
0 |
| ODI |
0 |
2 |
1 |
285 |
462 |
77 |
0 |
0 |
| CDI |
0 |
0 |
0 |
29 |
637 |
795 |
31 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
48 |
1950 |
6745 |
15128 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11786 |
5669 |
73 |
223 |
26 |
0 |
0 |
0 |
| OW |
1 |
743 |
29 |
402 |
101 |
10 |
0 |
0 |
| VODI |
0 |
222 |
23 |
347 |
439 |
80 |
0 |
0 |
| ODI |
0 |
52 |
9 |
141 |
334 |
257 |
1 |
0 |
| CDI |
0 |
1 |
0 |
46 |
358 |
489 |
97 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
111 |
1990 |
6678 |
15128 |
|
Date: 2021-10-15:
| 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 |
11353 |
6004 |
63 |
131 |
43 |
7 |
0 |
0 |
| OW |
0 |
535 |
45 |
251 |
43 |
18 |
0 |
0 |
| VODI |
0 |
213 |
39 |
349 |
188 |
43 |
0 |
0 |
| ODI |
0 |
52 |
13 |
195 |
302 |
114 |
12 |
0 |
| CDI |
0 |
7 |
5 |
106 |
424 |
316 |
52 |
0 |
| VCDI |
0 |
0 |
0 |
17 |
431 |
2175 |
6776 |
15544 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11353 |
5667 |
81 |
241 |
66 |
30 |
0 |
0 |
| OW |
0 |
666 |
28 |
269 |
121 |
37 |
3 |
0 |
| VODI |
0 |
292 |
27 |
281 |
404 |
81 |
18 |
0 |
| ODI |
0 |
130 |
8 |
90 |
339 |
255 |
32 |
0 |
| CDI |
0 |
56 |
21 |
116 |
165 |
392 |
105 |
0 |
| VCDI |
0 |
0 |
0 |
52 |
336 |
1878 |
6682 |
15544 |
|
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