Validation of sea ice concentration - American sector
Bulletin date: 2021-10-21
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
|
...date precedes bulletin
|
Date: 2021-10-17:
| 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 |
10415 |
6146 |
87 |
224 |
47 |
1 |
0 |
0 |
| OW |
19 |
537 |
43 |
328 |
168 |
20 |
0 |
0 |
| VODI |
0 |
193 |
35 |
264 |
306 |
54 |
0 |
0 |
| ODI |
0 |
48 |
14 |
147 |
361 |
124 |
0 |
0 |
| CDI |
0 |
13 |
4 |
65 |
364 |
440 |
16 |
0 |
| VCDI |
0 |
0 |
0 |
27 |
268 |
2601 |
6763 |
15724 |
|
...date precedes bulletin
|
Date: 2021-10-19:
| 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 |
11033 |
5588 |
66 |
166 |
6 |
0 |
0 |
0 |
| OW |
9 |
346 |
61 |
305 |
101 |
8 |
0 |
0 |
| VODI |
0 |
57 |
26 |
288 |
350 |
58 |
0 |
0 |
| ODI |
0 |
5 |
2 |
58 |
414 |
178 |
7 |
0 |
| CDI |
0 |
0 |
0 |
5 |
287 |
737 |
89 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
194 |
2817 |
8042 |
14561 |
|
...date precedes bulletin
|
Date: 2021-10-21:
| 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 |
11189 |
5451 |
50 |
113 |
0 |
0 |
0 |
0 |
| OW |
8 |
625 |
25 |
181 |
34 |
0 |
0 |
0 |
| VODI |
0 |
249 |
43 |
376 |
102 |
0 |
0 |
0 |
| ODI |
0 |
60 |
21 |
272 |
240 |
3 |
0 |
0 |
| CDI |
0 |
6 |
6 |
148 |
532 |
59 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
31 |
703 |
3811 |
6652 |
14876 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11190 |
5703 |
55 |
161 |
0 |
0 |
0 |
0 |
| OW |
7 |
385 |
23 |
157 |
15 |
0 |
0 |
0 |
| VODI |
0 |
238 |
36 |
338 |
109 |
0 |
0 |
0 |
| ODI |
0 |
65 |
26 |
299 |
295 |
0 |
0 |
0 |
| CDI |
0 |
0 |
5 |
146 |
517 |
81 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
20 |
675 |
3792 |
6652 |
14876 |
|
Date: 2021-10-23:
| 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 |
10666 |
5445 |
62 |
117 |
7 |
0 |
0 |
0 |
| OW |
27 |
801 |
37 |
243 |
27 |
0 |
0 |
0 |
| VODI |
0 |
292 |
34 |
335 |
213 |
11 |
0 |
0 |
| ODI |
0 |
73 |
22 |
202 |
320 |
37 |
0 |
0 |
| CDI |
0 |
10 |
16 |
166 |
503 |
171 |
15 |
0 |
| VCDI |
0 |
0 |
0 |
30 |
727 |
3933 |
7179 |
14145 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10685 |
5820 |
74 |
229 |
6 |
0 |
0 |
0 |
| OW |
8 |
454 |
28 |
167 |
22 |
0 |
0 |
0 |
| VODI |
0 |
250 |
33 |
307 |
207 |
8 |
0 |
0 |
| ODI |
0 |
86 |
19 |
193 |
369 |
38 |
0 |
0 |
| CDI |
0 |
11 |
17 |
172 |
487 |
214 |
11 |
0 |
| VCDI |
0 |
0 |
0 |
25 |
706 |
3892 |
7183 |
14145 |
|
Date: 2021-10-25:
| 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 |
10120 |
6107 |
96 |
199 |
5 |
0 |
0 |
0 |
| OW |
7 |
264 |
49 |
431 |
29 |
0 |
0 |
0 |
| VODI |
0 |
50 |
25 |
536 |
280 |
4 |
0 |
0 |
| ODI |
0 |
4 |
2 |
90 |
614 |
71 |
0 |
0 |
| CDI |
0 |
1 |
0 |
26 |
515 |
608 |
35 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
229 |
3791 |
7485 |
14193 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10114 |
5538 |
82 |
325 |
38 |
0 |
0 |
0 |
| OW |
13 |
631 |
34 |
293 |
68 |
0 |
0 |
0 |
| VODI |
0 |
203 |
36 |
329 |
323 |
32 |
0 |
0 |
| ODI |
0 |
45 |
14 |
191 |
350 |
112 |
0 |
0 |
| CDI |
0 |
9 |
6 |
121 |
454 |
459 |
44 |
0 |
| VCDI |
0 |
0 |
0 |
23 |
439 |
3871 |
7476 |
14193 |
|
Date: 2021-10-27:
| 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 |
9555 |
6296 |
76 |
228 |
16 |
0 |
0 |
0 |
| OW |
2 |
364 |
50 |
364 |
103 |
6 |
0 |
0 |
| VODI |
0 |
86 |
21 |
489 |
285 |
24 |
0 |
0 |
| ODI |
0 |
4 |
1 |
159 |
385 |
83 |
3 |
0 |
| CDI |
0 |
0 |
0 |
6 |
469 |
398 |
23 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
138 |
3982 |
7105 |
15144 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9457 |
5521 |
70 |
339 |
83 |
4 |
0 |
0 |
| OW |
100 |
704 |
21 |
207 |
112 |
13 |
0 |
0 |
| VODI |
0 |
425 |
33 |
307 |
245 |
66 |
12 |
0 |
| ODI |
0 |
79 |
19 |
254 |
234 |
123 |
13 |
0 |
| CDI |
0 |
21 |
5 |
121 |
446 |
488 |
30 |
3 |
| VCDI |
0 |
0 |
0 |
19 |
276 |
3799 |
7076 |
15141 |
|
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 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8764 |
5824 |
68 |
388 |
122 |
4 |
0 |
0 |
| OW |
4 |
591 |
33 |
219 |
175 |
10 |
0 |
0 |
| VODI |
0 |
420 |
35 |
368 |
340 |
59 |
18 |
0 |
| ODI |
0 |
98 |
22 |
218 |
213 |
128 |
27 |
0 |
| CDI |
0 |
13 |
6 |
105 |
366 |
465 |
25 |
0 |
| VCDI |
0 |
0 |
0 |
30 |
314 |
3131 |
7799 |
15464 |
|
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