Validation of sea ice concentration - European sector
Bulletin date: 2021-04-22
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2021-04-16:
| 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 |
70295 |
15088 |
189 |
1235 |
249 |
14 |
0 |
0 |
| OW |
73 |
395 |
62 |
577 |
355 |
24 |
0 |
0 |
| VODI |
0 |
181 |
35 |
525 |
662 |
58 |
1 |
0 |
| ODI |
0 |
59 |
8 |
177 |
585 |
180 |
19 |
0 |
| CDI |
0 |
29 |
8 |
144 |
603 |
633 |
169 |
0 |
| VCDI |
0 |
0 |
0 |
79 |
1080 |
3223 |
6003 |
6083 |
|
...date precedes bulletin
|
Date: 2021-04-18:
| 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 |
71323 |
14333 |
188 |
1053 |
266 |
26 |
0 |
0 |
| OW |
73 |
434 |
47 |
585 |
368 |
18 |
0 |
0 |
| VODI |
0 |
257 |
42 |
425 |
606 |
70 |
0 |
0 |
| ODI |
0 |
94 |
13 |
155 |
471 |
257 |
16 |
0 |
| CDI |
0 |
51 |
8 |
168 |
683 |
758 |
136 |
0 |
| VCDI |
0 |
30 |
2 |
115 |
766 |
3362 |
5702 |
6199 |
|
...date precedes bulletin
|
Date: 2021-04-20:
| 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 |
71976 |
14937 |
214 |
904 |
232 |
24 |
0 |
0 |
| OW |
71 |
200 |
68 |
621 |
251 |
10 |
0 |
0 |
| VODI |
0 |
72 |
11 |
401 |
637 |
51 |
0 |
0 |
| ODI |
0 |
29 |
4 |
147 |
571 |
284 |
1 |
0 |
| CDI |
0 |
20 |
1 |
110 |
646 |
958 |
230 |
0 |
| VCDI |
0 |
3 |
1 |
55 |
491 |
2897 |
5785 |
6187 |
|
...date precedes bulletin
|
Date: 2021-04-22:
| 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 |
72711 |
14275 |
170 |
873 |
324 |
12 |
0 |
0 |
| OW |
71 |
343 |
78 |
434 |
365 |
28 |
0 |
0 |
| VODI |
0 |
90 |
27 |
313 |
580 |
139 |
0 |
0 |
| ODI |
0 |
28 |
5 |
164 |
458 |
258 |
29 |
0 |
| CDI |
0 |
15 |
1 |
127 |
583 |
1108 |
487 |
0 |
| VCDI |
0 |
0 |
0 |
16 |
550 |
1999 |
6456 |
5983 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
72711 |
14305 |
181 |
942 |
396 |
11 |
0 |
0 |
| OW |
71 |
303 |
65 |
346 |
333 |
30 |
0 |
0 |
| VODI |
0 |
97 |
27 |
324 |
553 |
163 |
4 |
0 |
| ODI |
0 |
33 |
6 |
164 |
468 |
256 |
32 |
0 |
| CDI |
0 |
13 |
2 |
135 |
559 |
1019 |
470 |
0 |
| VCDI |
0 |
0 |
0 |
16 |
551 |
2065 |
6466 |
5983 |
|
Date: 2021-04-24:
| 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 |
72460 |
14137 |
190 |
969 |
466 |
47 |
0 |
0 |
| OW |
71 |
365 |
71 |
545 |
383 |
44 |
0 |
0 |
| VODI |
0 |
54 |
15 |
319 |
659 |
90 |
9 |
0 |
| ODI |
0 |
22 |
3 |
106 |
591 |
210 |
40 |
0 |
| CDI |
0 |
0 |
0 |
59 |
549 |
1413 |
724 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
241 |
2141 |
5717 |
6384 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
72460 |
14216 |
202 |
1067 |
563 |
46 |
0 |
0 |
| OW |
71 |
280 |
58 |
450 |
352 |
49 |
0 |
0 |
| VODI |
0 |
56 |
16 |
316 |
597 |
90 |
10 |
0 |
| ODI |
0 |
25 |
2 |
105 |
608 |
201 |
43 |
0 |
| CDI |
0 |
1 |
1 |
60 |
533 |
1338 |
699 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
236 |
2221 |
5738 |
6384 |
|
Date: 2021-04-26:
| 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 |
71537 |
14996 |
180 |
930 |
360 |
59 |
0 |
0 |
| OW |
71 |
281 |
98 |
655 |
282 |
29 |
0 |
0 |
| VODI |
0 |
10 |
3 |
492 |
648 |
59 |
0 |
0 |
| ODI |
0 |
2 |
2 |
71 |
936 |
211 |
11 |
0 |
| CDI |
0 |
0 |
0 |
9 |
525 |
1514 |
294 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
69 |
2108 |
6547 |
6111 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
71537 |
14933 |
209 |
1204 |
606 |
74 |
0 |
0 |
| OW |
71 |
272 |
57 |
476 |
385 |
63 |
0 |
0 |
| VODI |
0 |
61 |
13 |
308 |
597 |
142 |
10 |
0 |
| ODI |
0 |
21 |
1 |
107 |
617 |
280 |
35 |
0 |
| CDI |
0 |
2 |
3 |
56 |
488 |
1214 |
936 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
127 |
2207 |
5871 |
6111 |
|
Date: 2021-04-28:
| 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 |
71917 |
14470 |
196 |
1048 |
510 |
97 |
0 |
0 |
| OW |
71 |
177 |
62 |
530 |
448 |
51 |
0 |
0 |
| VODI |
0 |
23 |
11 |
390 |
729 |
79 |
0 |
0 |
| ODI |
0 |
3 |
2 |
91 |
667 |
262 |
17 |
0 |
| CDI |
0 |
0 |
0 |
25 |
583 |
1508 |
296 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
119 |
2347 |
6635 |
5736 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
71917 |
14188 |
187 |
1155 |
868 |
141 |
0 |
0 |
| OW |
71 |
346 |
58 |
405 |
368 |
75 |
0 |
0 |
| VODI |
0 |
115 |
20 |
288 |
538 |
192 |
9 |
0 |
| ODI |
0 |
20 |
4 |
142 |
531 |
309 |
38 |
0 |
| CDI |
0 |
4 |
2 |
89 |
600 |
1314 |
649 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
151 |
2313 |
6252 |
5736 |
|
Date: 2021-04-30:
| 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 |
71665 |
14961 |
166 |
946 |
533 |
84 |
0 |
0 |
| OW |
71 |
303 |
91 |
610 |
314 |
65 |
0 |
0 |
| VODI |
0 |
52 |
25 |
435 |
522 |
78 |
15 |
0 |
| ODI |
0 |
9 |
1 |
175 |
590 |
180 |
43 |
0 |
| CDI |
0 |
0 |
0 |
70 |
829 |
1287 |
403 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
261 |
2557 |
5891 |
5868 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
71665 |
14669 |
181 |
1149 |
771 |
148 |
0 |
0 |
| OW |
71 |
460 |
50 |
346 |
324 |
65 |
13 |
0 |
| VODI |
0 |
167 |
42 |
358 |
472 |
123 |
23 |
0 |
| ODI |
0 |
28 |
9 |
232 |
495 |
244 |
57 |
0 |
| CDI |
0 |
1 |
1 |
148 |
712 |
976 |
476 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
275 |
2695 |
5783 |
5868 |
|
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