Validation of sea ice concentration - European sector
Bulletin date: 2021-04-15
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2021-04-09:
| 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 |
69406 |
15172 |
187 |
900 |
295 |
12 |
0 |
0 |
| OW |
60 |
634 |
34 |
397 |
350 |
11 |
0 |
0 |
| VODI |
0 |
494 |
27 |
282 |
664 |
20 |
0 |
0 |
| ODI |
0 |
275 |
24 |
182 |
557 |
205 |
2 |
0 |
| CDI |
0 |
206 |
12 |
178 |
511 |
1236 |
135 |
0 |
| VCDI |
0 |
401 |
61 |
527 |
985 |
3423 |
5529 |
5706 |
|
...date precedes bulletin
|
Date: 2021-04-11:
| 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 |
70384 |
14789 |
157 |
754 |
288 |
39 |
0 |
0 |
| OW |
74 |
727 |
45 |
416 |
318 |
6 |
0 |
0 |
| VODI |
0 |
556 |
32 |
319 |
614 |
48 |
0 |
0 |
| ODI |
0 |
280 |
22 |
194 |
470 |
184 |
0 |
0 |
| CDI |
0 |
225 |
18 |
193 |
635 |
1207 |
167 |
0 |
| VCDI |
0 |
405 |
40 |
415 |
847 |
3432 |
5447 |
5353 |
|
...date precedes bulletin
|
Date: 2021-04-13:
| 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 |
70358 |
15619 |
194 |
949 |
292 |
15 |
0 |
0 |
| OW |
71 |
384 |
52 |
503 |
366 |
19 |
0 |
0 |
| VODI |
0 |
202 |
36 |
394 |
629 |
46 |
1 |
0 |
| ODI |
0 |
53 |
16 |
246 |
551 |
318 |
3 |
0 |
| CDI |
0 |
22 |
8 |
196 |
700 |
2011 |
397 |
0 |
| VCDI |
0 |
61 |
14 |
254 |
815 |
2805 |
4658 |
5842 |
|
...date precedes bulletin
|
Date: 2021-04-15:
| 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 |
69948 |
15484 |
210 |
1199 |
340 |
22 |
0 |
0 |
| OW |
73 |
327 |
64 |
603 |
345 |
26 |
0 |
0 |
| VODI |
0 |
163 |
15 |
425 |
793 |
33 |
4 |
0 |
| ODI |
0 |
47 |
12 |
171 |
645 |
189 |
18 |
0 |
| CDI |
0 |
11 |
4 |
169 |
662 |
888 |
121 |
0 |
| VCDI |
0 |
0 |
0 |
71 |
1225 |
3307 |
5580 |
5906 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
69948 |
15496 |
213 |
1274 |
385 |
28 |
0 |
0 |
| OW |
73 |
303 |
60 |
528 |
342 |
16 |
0 |
0 |
| VODI |
0 |
165 |
19 |
429 |
707 |
50 |
4 |
0 |
| ODI |
0 |
54 |
7 |
164 |
634 |
166 |
16 |
0 |
| CDI |
0 |
14 |
6 |
144 |
688 |
781 |
111 |
0 |
| VCDI |
0 |
0 |
0 |
99 |
1254 |
3424 |
5592 |
5906 |
|
Date: 2021-04-17:
| 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 |
70553 |
14910 |
186 |
1024 |
400 |
33 |
0 |
0 |
| OW |
73 |
401 |
63 |
516 |
408 |
35 |
0 |
0 |
| VODI |
0 |
204 |
33 |
437 |
619 |
104 |
6 |
0 |
| ODI |
0 |
72 |
14 |
150 |
518 |
222 |
32 |
0 |
| CDI |
0 |
47 |
3 |
147 |
670 |
584 |
181 |
0 |
| VCDI |
0 |
18 |
2 |
137 |
1012 |
3147 |
5907 |
6232 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
70553 |
14964 |
191 |
1150 |
486 |
41 |
0 |
0 |
| OW |
73 |
330 |
54 |
437 |
371 |
27 |
0 |
0 |
| VODI |
0 |
206 |
39 |
390 |
585 |
90 |
5 |
0 |
| ODI |
0 |
76 |
10 |
138 |
448 |
210 |
30 |
0 |
| CDI |
0 |
45 |
5 |
152 |
720 |
575 |
178 |
0 |
| VCDI |
0 |
31 |
2 |
144 |
1017 |
3182 |
5913 |
6232 |
|
Date: 2021-04-19:
| 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 |
71638 |
14912 |
174 |
858 |
229 |
5 |
0 |
0 |
| OW |
71 |
332 |
89 |
734 |
201 |
12 |
0 |
0 |
| VODI |
0 |
76 |
22 |
491 |
643 |
32 |
0 |
0 |
| ODI |
0 |
31 |
5 |
147 |
778 |
209 |
0 |
0 |
| CDI |
0 |
23 |
2 |
97 |
690 |
837 |
117 |
0 |
| VCDI |
0 |
0 |
0 |
55 |
548 |
3265 |
5668 |
6109 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
71636 |
14411 |
171 |
1146 |
392 |
19 |
0 |
0 |
| OW |
73 |
459 |
49 |
334 |
309 |
12 |
0 |
0 |
| VODI |
0 |
314 |
42 |
314 |
483 |
69 |
0 |
0 |
| ODI |
0 |
83 |
17 |
213 |
414 |
182 |
10 |
0 |
| CDI |
0 |
61 |
9 |
184 |
630 |
684 |
188 |
0 |
| VCDI |
0 |
46 |
4 |
191 |
861 |
3394 |
5587 |
6109 |
|
Date: 2021-04-21:
| 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 |
72432 |
14539 |
197 |
934 |
280 |
21 |
0 |
0 |
| OW |
71 |
235 |
69 |
538 |
343 |
15 |
0 |
0 |
| VODI |
0 |
86 |
12 |
312 |
612 |
108 |
1 |
0 |
| ODI |
0 |
33 |
7 |
125 |
484 |
295 |
26 |
0 |
| CDI |
0 |
28 |
3 |
127 |
568 |
945 |
374 |
0 |
| VCDI |
0 |
0 |
0 |
41 |
556 |
2295 |
6153 |
6235 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
72432 |
13974 |
169 |
963 |
430 |
29 |
0 |
0 |
| OW |
71 |
468 |
58 |
298 |
319 |
39 |
0 |
0 |
| VODI |
0 |
304 |
37 |
288 |
400 |
170 |
13 |
0 |
| ODI |
0 |
85 |
11 |
216 |
350 |
204 |
42 |
0 |
| CDI |
0 |
77 |
12 |
178 |
612 |
766 |
404 |
0 |
| VCDI |
0 |
13 |
1 |
134 |
732 |
2471 |
6095 |
6235 |
|
Date: 2021-04-23:
| 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 |
72687 |
14101 |
175 |
982 |
307 |
42 |
0 |
0 |
| OW |
71 |
355 |
73 |
519 |
325 |
32 |
0 |
0 |
| VODI |
0 |
75 |
24 |
349 |
626 |
98 |
2 |
0 |
| ODI |
0 |
33 |
4 |
142 |
539 |
219 |
17 |
0 |
| CDI |
0 |
9 |
0 |
79 |
610 |
1204 |
626 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
373 |
2083 |
6019 |
6294 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
72687 |
13659 |
154 |
876 |
446 |
66 |
0 |
0 |
| OW |
71 |
552 |
67 |
333 |
273 |
68 |
2 |
0 |
| VODI |
0 |
236 |
38 |
421 |
380 |
123 |
22 |
0 |
| ODI |
0 |
90 |
13 |
254 |
429 |
183 |
50 |
0 |
| CDI |
0 |
36 |
4 |
170 |
809 |
964 |
614 |
0 |
| VCDI |
0 |
0 |
0 |
23 |
443 |
2274 |
5976 |
6294 |
|
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