Validation of sea ice concentration - American sector
Bulletin date: 2023-10-12
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-10-06:
| 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 |
19632 |
6206 |
471 |
1005 |
190 |
32 |
0 |
0 |
| OW |
0 |
168 |
131 |
552 |
729 |
208 |
4 |
0 |
| VODI |
0 |
10 |
3 |
108 |
527 |
566 |
60 |
0 |
| ODI |
0 |
1 |
0 |
24 |
191 |
569 |
161 |
0 |
| CDI |
0 |
0 |
0 |
1 |
101 |
730 |
686 |
1 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
274 |
5216 |
7309 |
|
...date precedes bulletin
|
Date: 2023-10-08:
| 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 |
18719 |
6000 |
424 |
928 |
317 |
33 |
2 |
0 |
| OW |
0 |
386 |
132 |
519 |
739 |
172 |
15 |
0 |
| VODI |
0 |
1 |
1 |
98 |
759 |
622 |
106 |
0 |
| ODI |
0 |
0 |
0 |
20 |
109 |
532 |
339 |
0 |
| CDI |
0 |
0 |
0 |
1 |
11 |
309 |
974 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
41 |
4814 |
8743 |
|
...date precedes bulletin
|
Date: 2023-10-10:
| 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 |
17498 |
6600 |
486 |
972 |
158 |
0 |
0 |
0 |
| OW |
1 |
18 |
27 |
539 |
324 |
21 |
0 |
0 |
| VODI |
0 |
1 |
3 |
239 |
566 |
119 |
2 |
0 |
| ODI |
0 |
0 |
0 |
12 |
662 |
369 |
37 |
0 |
| CDI |
0 |
0 |
0 |
1 |
210 |
1034 |
515 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
79 |
4544 |
10828 |
|
...date precedes bulletin
|
Date: 2023-10-12:
| 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 |
17686 |
5952 |
383 |
812 |
172 |
26 |
0 |
0 |
| OW |
1 |
179 |
57 |
421 |
489 |
49 |
0 |
0 |
| VODI |
0 |
40 |
23 |
209 |
554 |
151 |
1 |
0 |
| ODI |
0 |
4 |
1 |
44 |
402 |
442 |
14 |
0 |
| CDI |
0 |
0 |
0 |
1 |
107 |
926 |
522 |
1 |
| VCDI |
0 |
0 |
0 |
1 |
19 |
524 |
6546 |
9107 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17647 |
6005 |
409 |
927 |
247 |
52 |
0 |
0 |
| OW |
40 |
133 |
46 |
349 |
406 |
44 |
0 |
0 |
| VODI |
0 |
34 |
9 |
188 |
587 |
130 |
1 |
0 |
| ODI |
0 |
3 |
0 |
23 |
415 |
455 |
12 |
0 |
| CDI |
0 |
0 |
0 |
0 |
78 |
931 |
460 |
1 |
| VCDI |
0 |
0 |
0 |
1 |
10 |
506 |
6610 |
9107 |
|
Date: 2023-10-14:
| 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 |
16906 |
6012 |
353 |
549 |
267 |
9 |
0 |
0 |
| OW |
1 |
196 |
85 |
503 |
666 |
93 |
0 |
0 |
| VODI |
0 |
59 |
61 |
215 |
480 |
295 |
0 |
0 |
| ODI |
0 |
7 |
13 |
96 |
246 |
415 |
10 |
0 |
| CDI |
0 |
0 |
0 |
22 |
227 |
773 |
175 |
2 |
| VCDI |
0 |
0 |
0 |
3 |
67 |
1314 |
6215 |
9531 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16907 |
6036 |
386 |
668 |
371 |
40 |
0 |
0 |
| OW |
0 |
209 |
80 |
404 |
522 |
83 |
0 |
0 |
| VODI |
0 |
26 |
42 |
241 |
507 |
243 |
0 |
0 |
| ODI |
0 |
3 |
4 |
55 |
294 |
373 |
7 |
0 |
| CDI |
0 |
0 |
0 |
19 |
203 |
766 |
191 |
2 |
| VCDI |
0 |
0 |
0 |
1 |
56 |
1394 |
6202 |
9531 |
|
Date: 2023-10-16:
| 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 |
15908 |
6474 |
401 |
667 |
113 |
15 |
0 |
0 |
| OW |
0 |
124 |
138 |
412 |
210 |
14 |
0 |
0 |
| VODI |
0 |
1 |
9 |
343 |
426 |
56 |
0 |
0 |
| ODI |
0 |
0 |
0 |
36 |
779 |
417 |
1 |
15 |
| CDI |
0 |
0 |
0 |
10 |
229 |
1803 |
92 |
24 |
| VCDI |
0 |
0 |
0 |
0 |
49 |
1032 |
6911 |
9157 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15908 |
6160 |
376 |
820 |
424 |
58 |
0 |
0 |
| OW |
0 |
313 |
107 |
285 |
364 |
167 |
3 |
0 |
| VODI |
0 |
113 |
44 |
192 |
383 |
645 |
32 |
0 |
| ODI |
0 |
13 |
19 |
106 |
197 |
343 |
43 |
0 |
| CDI |
0 |
0 |
2 |
56 |
253 |
680 |
191 |
2 |
| VCDI |
0 |
0 |
0 |
9 |
185 |
1444 |
6735 |
9194 |
|
Date: 2023-10-18:
| 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 |
15082 |
6407 |
425 |
812 |
217 |
25 |
0 |
0 |
| OW |
0 |
101 |
90 |
570 |
356 |
62 |
0 |
0 |
| VODI |
0 |
20 |
8 |
265 |
513 |
123 |
6 |
0 |
| ODI |
0 |
0 |
0 |
31 |
419 |
499 |
27 |
0 |
| CDI |
0 |
0 |
0 |
0 |
143 |
1307 |
479 |
1 |
| VCDI |
0 |
0 |
0 |
0 |
14 |
944 |
5869 |
11051 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15080 |
6122 |
336 |
879 |
458 |
99 |
1 |
0 |
| OW |
2 |
265 |
99 |
372 |
460 |
171 |
16 |
0 |
| VODI |
0 |
124 |
71 |
240 |
268 |
613 |
96 |
0 |
| ODI |
0 |
17 |
17 |
137 |
158 |
341 |
165 |
0 |
| CDI |
0 |
0 |
0 |
50 |
219 |
385 |
267 |
4 |
| VCDI |
0 |
0 |
0 |
0 |
99 |
1351 |
5836 |
11048 |
|
Date: 2023-10-20:
| 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 |
13733 |
6818 |
453 |
888 |
335 |
25 |
0 |
0 |
| OW |
6 |
202 |
51 |
334 |
484 |
81 |
0 |
0 |
| VODI |
0 |
34 |
26 |
205 |
573 |
316 |
1 |
0 |
| ODI |
0 |
0 |
0 |
38 |
228 |
478 |
39 |
0 |
| CDI |
0 |
0 |
0 |
8 |
126 |
927 |
139 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
68 |
1943 |
7599 |
9708 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13736 |
6394 |
389 |
708 |
474 |
206 |
0 |
0 |
| OW |
3 |
358 |
63 |
329 |
485 |
280 |
0 |
0 |
| VODI |
0 |
247 |
33 |
232 |
314 |
634 |
25 |
0 |
| ODI |
0 |
46 |
42 |
148 |
152 |
460 |
210 |
0 |
| CDI |
0 |
9 |
3 |
56 |
251 |
281 |
253 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
138 |
1909 |
7290 |
9708 |
|
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