Validation of sea ice concentration - European sector
Bulletin date: 2023-12-21
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-12-15:
| 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 |
69883 |
9508 |
233 |
291 |
51 |
2 |
0 |
0 |
| OW |
19 |
736 |
140 |
493 |
159 |
13 |
0 |
0 |
| VODI |
3 |
337 |
128 |
458 |
476 |
136 |
0 |
0 |
| ODI |
0 |
155 |
54 |
334 |
362 |
188 |
0 |
0 |
| CDI |
2 |
79 |
99 |
419 |
847 |
998 |
364 |
0 |
| VCDI |
8 |
0 |
1 |
55 |
288 |
2796 |
5877 |
4424 |
|
...date precedes bulletin
|
Date: 2023-12-17:
| 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 |
69999 |
9284 |
205 |
268 |
41 |
1 |
0 |
0 |
| OW |
29 |
775 |
130 |
431 |
138 |
10 |
0 |
0 |
| VODI |
0 |
421 |
118 |
395 |
397 |
81 |
3 |
0 |
| ODI |
0 |
188 |
78 |
289 |
325 |
310 |
18 |
0 |
| CDI |
5 |
112 |
93 |
415 |
775 |
907 |
264 |
0 |
| VCDI |
5 |
7 |
20 |
123 |
365 |
2945 |
6313 |
4133 |
|
...date precedes bulletin
|
Date: 2023-12-19:
| 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 |
69006 |
10162 |
219 |
246 |
12 |
0 |
0 |
0 |
| OW |
7 |
759 |
304 |
428 |
99 |
2 |
0 |
0 |
| VODI |
0 |
107 |
81 |
901 |
220 |
49 |
0 |
0 |
| ODI |
0 |
29 |
21 |
349 |
545 |
108 |
3 |
0 |
| CDI |
5 |
4 |
20 |
195 |
940 |
1438 |
242 |
0 |
| VCDI |
5 |
0 |
1 |
43 |
377 |
2647 |
6391 |
4451 |
|
...date precedes bulletin
|
Date: 2023-12-21:
| 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 |
67866 |
10624 |
371 |
298 |
10 |
0 |
0 |
0 |
| OW |
1 |
530 |
262 |
523 |
136 |
2 |
0 |
0 |
| VODI |
0 |
130 |
89 |
603 |
266 |
36 |
0 |
0 |
| ODI |
0 |
21 |
26 |
340 |
552 |
122 |
13 |
0 |
| CDI |
5 |
1 |
2 |
242 |
1087 |
1379 |
522 |
0 |
| VCDI |
5 |
0 |
0 |
22 |
398 |
3597 |
5910 |
4425 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67866 |
10613 |
356 |
306 |
19 |
0 |
0 |
0 |
| OW |
1 |
518 |
283 |
516 |
129 |
2 |
0 |
0 |
| VODI |
0 |
145 |
85 |
625 |
274 |
38 |
0 |
0 |
| ODI |
0 |
27 |
22 |
326 |
527 |
133 |
16 |
0 |
| CDI |
3 |
3 |
4 |
227 |
1111 |
1367 |
515 |
0 |
| VCDI |
7 |
0 |
0 |
28 |
389 |
3596 |
5914 |
4425 |
|
Date: 2023-12-23:
| 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 |
67636 |
10459 |
286 |
272 |
11 |
0 |
0 |
0 |
| OW |
12 |
600 |
222 |
504 |
103 |
0 |
0 |
0 |
| VODI |
1 |
193 |
115 |
523 |
278 |
1 |
0 |
0 |
| ODI |
0 |
77 |
43 |
299 |
433 |
47 |
0 |
0 |
| CDI |
2 |
16 |
36 |
341 |
987 |
1174 |
574 |
0 |
| VCDI |
8 |
0 |
0 |
12 |
474 |
3742 |
6215 |
4720 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67634 |
10423 |
310 |
286 |
19 |
0 |
0 |
0 |
| OW |
14 |
597 |
204 |
509 |
109 |
0 |
0 |
0 |
| VODI |
1 |
215 |
108 |
520 |
257 |
3 |
0 |
0 |
| ODI |
0 |
83 |
35 |
287 |
393 |
50 |
0 |
0 |
| CDI |
1 |
26 |
44 |
335 |
1029 |
1241 |
548 |
0 |
| VCDI |
9 |
1 |
1 |
14 |
479 |
3670 |
6241 |
4720 |
|
Date: 2023-12-25:
| 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 |
67685 |
10485 |
183 |
151 |
9 |
0 |
0 |
0 |
| OW |
48 |
852 |
293 |
418 |
60 |
0 |
0 |
0 |
| VODI |
5 |
107 |
87 |
759 |
232 |
2 |
0 |
0 |
| ODI |
0 |
6 |
32 |
268 |
594 |
31 |
0 |
0 |
| CDI |
1 |
0 |
2 |
165 |
881 |
1344 |
159 |
0 |
| VCDI |
9 |
0 |
0 |
2 |
164 |
3315 |
6729 |
5338 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67649 |
10129 |
220 |
208 |
4 |
0 |
0 |
0 |
| OW |
88 |
749 |
128 |
407 |
99 |
1 |
0 |
0 |
| VODI |
1 |
385 |
136 |
440 |
277 |
10 |
0 |
0 |
| ODI |
0 |
126 |
45 |
345 |
323 |
69 |
0 |
0 |
| CDI |
1 |
57 |
67 |
335 |
808 |
1029 |
516 |
0 |
| VCDI |
9 |
4 |
1 |
28 |
429 |
3583 |
6372 |
5338 |
|
Date: 2023-12-27:
| 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 |
67719 |
10350 |
190 |
176 |
4 |
0 |
0 |
0 |
| OW |
141 |
937 |
237 |
334 |
83 |
0 |
0 |
0 |
| VODI |
4 |
311 |
158 |
534 |
186 |
7 |
0 |
0 |
| ODI |
0 |
50 |
57 |
339 |
358 |
41 |
0 |
0 |
| CDI |
1 |
9 |
18 |
359 |
751 |
767 |
100 |
0 |
| VCDI |
9 |
0 |
0 |
130 |
721 |
3921 |
6676 |
4738 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67659 |
9645 |
180 |
200 |
9 |
0 |
0 |
0 |
| OW |
165 |
907 |
148 |
291 |
71 |
2 |
0 |
0 |
| VODI |
40 |
650 |
124 |
373 |
210 |
11 |
0 |
0 |
| ODI |
0 |
296 |
86 |
286 |
266 |
41 |
0 |
0 |
| CDI |
0 |
157 |
97 |
437 |
714 |
703 |
234 |
0 |
| VCDI |
10 |
2 |
25 |
285 |
833 |
3979 |
6542 |
4738 |
|
Date: 2023-12-29:
| 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 |
67630 |
10178 |
185 |
221 |
7 |
0 |
0 |
0 |
| OW |
199 |
931 |
162 |
338 |
80 |
6 |
0 |
0 |
| VODI |
10 |
370 |
114 |
462 |
189 |
38 |
0 |
0 |
| ODI |
0 |
143 |
32 |
289 |
365 |
75 |
0 |
0 |
| CDI |
0 |
83 |
59 |
205 |
717 |
763 |
442 |
0 |
| VCDI |
10 |
21 |
28 |
239 |
713 |
3492 |
7525 |
4095 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67391 |
9528 |
171 |
248 |
12 |
0 |
0 |
0 |
| OW |
276 |
807 |
109 |
266 |
93 |
12 |
0 |
0 |
| VODI |
120 |
605 |
116 |
333 |
194 |
54 |
0 |
0 |
| ODI |
52 |
298 |
40 |
273 |
209 |
99 |
5 |
0 |
| CDI |
3 |
311 |
65 |
294 |
665 |
699 |
498 |
0 |
| VCDI |
7 |
177 |
79 |
340 |
898 |
3510 |
7464 |
4095 |
|
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