Validation of sea ice concentration - Full domain
Bulletin date: 2023-09-28
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-09-22:
| 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 |
139608 |
12843 |
159 |
126 |
2 |
0 |
0 |
0 |
| OW |
46 |
2249 |
693 |
995 |
97 |
6 |
0 |
0 |
| VODI |
0 |
126 |
284 |
2420 |
1181 |
214 |
6 |
0 |
| ODI |
0 |
0 |
1 |
652 |
3876 |
1214 |
53 |
0 |
| CDI |
0 |
0 |
1 |
49 |
1398 |
9790 |
2871 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
5 |
2848 |
10588 |
342 |
|
...date precedes bulletin
|
Date: 2023-09-24:
| 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 |
137551 |
14271 |
286 |
232 |
0 |
0 |
0 |
0 |
| OW |
31 |
1849 |
579 |
1360 |
210 |
12 |
0 |
0 |
| VODI |
0 |
189 |
252 |
1797 |
1482 |
311 |
64 |
0 |
| ODI |
0 |
2 |
2 |
588 |
2944 |
1466 |
198 |
0 |
| CDI |
0 |
0 |
0 |
43 |
717 |
6995 |
5922 |
27 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
3017 |
12073 |
273 |
|
...date precedes bulletin
|
Date: 2023-09-26:
| 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 |
136323 |
15418 |
314 |
278 |
0 |
0 |
0 |
0 |
| OW |
3 |
1458 |
610 |
1027 |
11 |
0 |
0 |
0 |
| VODI |
0 |
47 |
138 |
2378 |
642 |
2 |
0 |
0 |
| ODI |
0 |
0 |
1 |
443 |
3713 |
280 |
8 |
0 |
| CDI |
0 |
0 |
0 |
47 |
1052 |
4587 |
1433 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
84 |
3637 |
18934 |
1875 |
|
...date precedes bulletin
|
Date: 2023-09-28:
| 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 |
137898 |
13760 |
286 |
184 |
11 |
0 |
0 |
0 |
| OW |
12 |
1563 |
608 |
911 |
73 |
10 |
0 |
0 |
| VODI |
0 |
89 |
204 |
2013 |
755 |
15 |
1 |
0 |
| ODI |
0 |
8 |
20 |
432 |
3177 |
428 |
6 |
1 |
| CDI |
0 |
0 |
7 |
95 |
1020 |
3468 |
2049 |
90 |
| VCDI |
0 |
0 |
0 |
3 |
227 |
1467 |
13706 |
10146 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
137893 |
13981 |
310 |
204 |
15 |
0 |
0 |
0 |
| OW |
17 |
1357 |
613 |
999 |
74 |
12 |
0 |
0 |
| VODI |
0 |
75 |
173 |
1980 |
990 |
19 |
0 |
0 |
| ODI |
0 |
7 |
24 |
358 |
3050 |
541 |
6 |
2 |
| CDI |
0 |
0 |
5 |
76 |
889 |
3502 |
2208 |
130 |
| VCDI |
0 |
0 |
0 |
21 |
245 |
1314 |
13548 |
10105 |
|
Date: 2023-09-30:
| 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 |
137160 |
13381 |
244 |
317 |
20 |
0 |
1 |
0 |
| OW |
21 |
1806 |
496 |
1005 |
214 |
43 |
0 |
0 |
| VODI |
0 |
152 |
229 |
1807 |
932 |
108 |
10 |
0 |
| ODI |
0 |
3 |
6 |
424 |
1882 |
1312 |
28 |
0 |
| CDI |
0 |
0 |
0 |
100 |
792 |
3824 |
1648 |
9 |
| VCDI |
0 |
0 |
0 |
0 |
55 |
1141 |
10315 |
15258 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
137152 |
13597 |
289 |
370 |
20 |
5 |
1 |
0 |
| OW |
29 |
1633 |
497 |
1114 |
241 |
43 |
0 |
0 |
| VODI |
0 |
109 |
186 |
1697 |
1134 |
186 |
7 |
0 |
| ODI |
0 |
3 |
3 |
372 |
1760 |
1510 |
23 |
0 |
| CDI |
0 |
0 |
0 |
95 |
649 |
3589 |
1971 |
12 |
| VCDI |
0 |
0 |
0 |
5 |
91 |
1095 |
10000 |
15255 |
|
Date: 2023-10-02:
| 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 |
133218 |
16270 |
218 |
342 |
97 |
34 |
0 |
0 |
| OW |
3 |
1523 |
674 |
708 |
61 |
16 |
5 |
0 |
| VODI |
0 |
16 |
116 |
1864 |
433 |
31 |
16 |
0 |
| ODI |
0 |
0 |
0 |
301 |
1836 |
182 |
17 |
0 |
| CDI |
0 |
0 |
0 |
23 |
830 |
3421 |
359 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
9 |
2172 |
16259 |
13689 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
133184 |
15237 |
274 |
450 |
110 |
39 |
6 |
0 |
| OW |
37 |
2256 |
459 |
1061 |
292 |
113 |
48 |
0 |
| VODI |
0 |
297 |
225 |
1265 |
1032 |
437 |
214 |
0 |
| ODI |
0 |
19 |
27 |
351 |
1239 |
1035 |
250 |
0 |
| CDI |
0 |
0 |
23 |
98 |
540 |
3108 |
2088 |
40 |
| VCDI |
0 |
0 |
0 |
13 |
53 |
1124 |
14050 |
13649 |
|
Date: 2023-10-04:
| 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 |
133333 |
15252 |
311 |
414 |
75 |
6 |
0 |
0 |
| OW |
2 |
1388 |
500 |
1003 |
135 |
18 |
0 |
0 |
| VODI |
0 |
198 |
219 |
1062 |
726 |
18 |
4 |
0 |
| ODI |
0 |
32 |
31 |
533 |
896 |
467 |
23 |
0 |
| CDI |
0 |
1 |
18 |
266 |
1351 |
1854 |
641 |
0 |
| VCDI |
0 |
0 |
0 |
25 |
333 |
6234 |
20116 |
7258 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
133181 |
14120 |
291 |
448 |
94 |
16 |
1 |
0 |
| OW |
148 |
2160 |
433 |
1044 |
408 |
53 |
8 |
0 |
| VODI |
6 |
511 |
248 |
1040 |
1029 |
473 |
23 |
0 |
| ODI |
0 |
75 |
76 |
489 |
922 |
1058 |
324 |
0 |
| CDI |
0 |
5 |
31 |
268 |
884 |
2166 |
1333 |
0 |
| VCDI |
0 |
0 |
0 |
14 |
179 |
4831 |
19095 |
7258 |
|
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 |
130386 |
16338 |
403 |
608 |
165 |
15 |
0 |
0 |
| OW |
0 |
1303 |
419 |
1259 |
428 |
56 |
3 |
0 |
| VODI |
0 |
293 |
218 |
756 |
837 |
331 |
10 |
0 |
| ODI |
0 |
27 |
79 |
471 |
650 |
567 |
30 |
0 |
| CDI |
0 |
4 |
21 |
412 |
1090 |
1572 |
650 |
0 |
| VCDI |
0 |
0 |
0 |
48 |
395 |
4247 |
18078 |
12574 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
130281 |
15362 |
391 |
587 |
146 |
46 |
0 |
0 |
| OW |
98 |
1999 |
397 |
1138 |
389 |
84 |
23 |
0 |
| VODI |
7 |
523 |
204 |
1093 |
1295 |
561 |
66 |
0 |
| ODI |
0 |
68 |
108 |
391 |
771 |
1004 |
459 |
0 |
| CDI |
0 |
13 |
40 |
333 |
815 |
1776 |
1638 |
1 |
| VCDI |
0 |
0 |
0 |
12 |
149 |
3317 |
16585 |
12573 |
|
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