Validation of sea ice concentration - European sector
Bulletin date: 2023-12-14
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-12-08:
| 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 |
70078 |
10767 |
465 |
647 |
123 |
25 |
0 |
0 |
| OW |
13 |
356 |
139 |
529 |
244 |
49 |
0 |
0 |
| VODI |
0 |
65 |
35 |
356 |
424 |
114 |
10 |
0 |
| ODI |
0 |
14 |
26 |
146 |
289 |
344 |
51 |
0 |
| CDI |
0 |
20 |
10 |
134 |
341 |
987 |
304 |
0 |
| VCDI |
0 |
20 |
20 |
129 |
306 |
1160 |
7049 |
4627 |
|
...date precedes bulletin
|
Date: 2023-12-10:
| 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 |
70325 |
9940 |
399 |
580 |
62 |
23 |
0 |
0 |
| OW |
60 |
395 |
159 |
602 |
196 |
38 |
0 |
0 |
| VODI |
1 |
177 |
52 |
475 |
397 |
60 |
13 |
0 |
| ODI |
2 |
60 |
14 |
203 |
349 |
314 |
39 |
0 |
| CDI |
3 |
84 |
20 |
121 |
449 |
1153 |
393 |
0 |
| VCDI |
4 |
34 |
50 |
172 |
453 |
1090 |
6821 |
4634 |
|
...date precedes bulletin
|
Date: 2023-12-12:
| 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 |
69030 |
10785 |
402 |
494 |
77 |
1 |
0 |
0 |
| OW |
13 |
403 |
221 |
668 |
84 |
27 |
0 |
0 |
| VODI |
0 |
172 |
66 |
772 |
368 |
61 |
0 |
0 |
| ODI |
1 |
48 |
37 |
213 |
547 |
112 |
6 |
0 |
| CDI |
1 |
9 |
20 |
196 |
677 |
1626 |
289 |
0 |
| VCDI |
8 |
0 |
2 |
44 |
310 |
1272 |
6664 |
4690 |
|
...date precedes bulletin
|
Date: 2023-12-14:
| 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 |
69422 |
9914 |
302 |
308 |
57 |
1 |
0 |
0 |
| OW |
17 |
691 |
130 |
598 |
150 |
21 |
0 |
0 |
| VODI |
1 |
265 |
144 |
504 |
492 |
77 |
0 |
0 |
| ODI |
0 |
103 |
70 |
392 |
341 |
128 |
0 |
0 |
| CDI |
2 |
32 |
70 |
383 |
1020 |
1193 |
337 |
0 |
| VCDI |
8 |
0 |
0 |
12 |
258 |
2117 |
6344 |
4512 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
69416 |
9911 |
305 |
316 |
60 |
0 |
0 |
0 |
| OW |
20 |
696 |
135 |
578 |
156 |
24 |
0 |
0 |
| VODI |
4 |
281 |
146 |
547 |
489 |
75 |
0 |
0 |
| ODI |
0 |
97 |
83 |
412 |
347 |
140 |
1 |
0 |
| CDI |
1 |
20 |
47 |
330 |
1004 |
1193 |
331 |
0 |
| VCDI |
9 |
0 |
0 |
14 |
262 |
2105 |
6349 |
4512 |
|
Date: 2023-12-16:
| 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 |
69619 |
9773 |
238 |
235 |
60 |
0 |
0 |
0 |
| OW |
21 |
718 |
114 |
530 |
115 |
14 |
0 |
0 |
| VODI |
1 |
347 |
105 |
431 |
517 |
84 |
2 |
0 |
| ODI |
0 |
169 |
60 |
264 |
454 |
245 |
17 |
0 |
| CDI |
1 |
104 |
104 |
394 |
831 |
895 |
374 |
0 |
| VCDI |
9 |
5 |
14 |
95 |
332 |
2603 |
7237 |
3285 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
69609 |
9825 |
240 |
257 |
51 |
0 |
0 |
0 |
| OW |
28 |
674 |
124 |
520 |
121 |
12 |
0 |
0 |
| VODI |
4 |
360 |
93 |
422 |
501 |
94 |
4 |
0 |
| ODI |
0 |
164 |
72 |
302 |
460 |
218 |
22 |
0 |
| CDI |
0 |
90 |
93 |
350 |
798 |
871 |
352 |
0 |
| VCDI |
10 |
3 |
13 |
98 |
378 |
2646 |
7252 |
3285 |
|
Date: 2023-12-18:
| 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 |
69431 |
9911 |
234 |
209 |
44 |
1 |
0 |
0 |
| OW |
12 |
913 |
314 |
351 |
79 |
17 |
0 |
0 |
| VODI |
0 |
83 |
119 |
961 |
238 |
33 |
9 |
0 |
| ODI |
0 |
20 |
17 |
280 |
679 |
78 |
9 |
0 |
| CDI |
4 |
9 |
21 |
225 |
876 |
1442 |
111 |
0 |
| VCDI |
6 |
2 |
0 |
6 |
208 |
2491 |
5967 |
5006 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
69409 |
9576 |
258 |
269 |
44 |
0 |
0 |
0 |
| OW |
34 |
757 |
160 |
395 |
146 |
29 |
0 |
0 |
| VODI |
0 |
414 |
131 |
458 |
303 |
99 |
18 |
0 |
| ODI |
0 |
109 |
92 |
388 |
365 |
221 |
20 |
0 |
| CDI |
2 |
82 |
56 |
411 |
837 |
932 |
301 |
0 |
| VCDI |
8 |
0 |
8 |
111 |
429 |
2781 |
5757 |
5006 |
|
Date: 2023-12-20:
| 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 |
68701 |
10165 |
298 |
248 |
18 |
0 |
0 |
0 |
| OW |
6 |
598 |
279 |
553 |
85 |
1 |
0 |
0 |
| VODI |
0 |
128 |
100 |
667 |
295 |
21 |
0 |
0 |
| ODI |
0 |
21 |
23 |
435 |
639 |
95 |
0 |
0 |
| CDI |
6 |
3 |
8 |
192 |
964 |
1422 |
156 |
0 |
| VCDI |
4 |
0 |
0 |
17 |
399 |
2916 |
6505 |
4448 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
68656 |
9604 |
264 |
270 |
26 |
0 |
0 |
0 |
| OW |
49 |
803 |
167 |
404 |
142 |
4 |
0 |
0 |
| VODI |
2 |
359 |
162 |
532 |
297 |
77 |
0 |
0 |
| ODI |
0 |
115 |
71 |
456 |
445 |
263 |
3 |
0 |
| CDI |
5 |
34 |
34 |
353 |
877 |
946 |
268 |
0 |
| VCDI |
5 |
0 |
10 |
97 |
613 |
3165 |
6390 |
4448 |
|
Date: 2023-12-22:
| 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 |
67688 |
10560 |
333 |
302 |
13 |
0 |
0 |
0 |
| OW |
3 |
552 |
244 |
501 |
131 |
0 |
0 |
0 |
| VODI |
0 |
149 |
92 |
592 |
236 |
27 |
0 |
0 |
| ODI |
1 |
38 |
36 |
308 |
440 |
101 |
5 |
0 |
| CDI |
3 |
8 |
5 |
288 |
1025 |
1548 |
663 |
0 |
| VCDI |
6 |
0 |
0 |
15 |
472 |
3624 |
5774 |
4633 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67599 |
10042 |
286 |
393 |
49 |
0 |
0 |
0 |
| OW |
92 |
801 |
153 |
362 |
195 |
10 |
0 |
0 |
| VODI |
0 |
321 |
176 |
446 |
313 |
85 |
5 |
0 |
| ODI |
0 |
101 |
71 |
345 |
351 |
202 |
42 |
0 |
| CDI |
5 |
41 |
24 |
359 |
733 |
994 |
588 |
0 |
| VCDI |
5 |
1 |
0 |
101 |
676 |
4009 |
5807 |
4633 |
|
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