Validation of sea ice concentration - European sector
Bulletin date: 2023-05-04
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-04-28:
| 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 |
67529 |
16914 |
478 |
736 |
462 |
178 |
50 |
0 |
| OW |
59 |
229 |
100 |
302 |
330 |
167 |
34 |
0 |
| VODI |
0 |
114 |
54 |
237 |
398 |
282 |
135 |
0 |
| ODI |
0 |
60 |
25 |
111 |
320 |
380 |
174 |
0 |
| CDI |
0 |
30 |
18 |
89 |
340 |
998 |
678 |
0 |
| VCDI |
0 |
34 |
30 |
110 |
414 |
3564 |
7579 |
5358 |
|
...date precedes bulletin
|
Date: 2023-04-30:
| 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 |
67890 |
16747 |
482 |
677 |
461 |
279 |
43 |
0 |
| OW |
74 |
256 |
109 |
265 |
288 |
186 |
59 |
0 |
| VODI |
0 |
141 |
64 |
192 |
316 |
310 |
155 |
0 |
| ODI |
0 |
55 |
28 |
98 |
291 |
377 |
208 |
0 |
| CDI |
0 |
42 |
22 |
93 |
309 |
1056 |
753 |
0 |
| VCDI |
0 |
16 |
28 |
98 |
519 |
3636 |
7384 |
5093 |
|
...date precedes bulletin
|
Date: 2023-05-02:
| 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 |
67389 |
17429 |
425 |
672 |
403 |
182 |
49 |
0 |
| OW |
94 |
141 |
100 |
269 |
244 |
101 |
29 |
0 |
| VODI |
3 |
61 |
52 |
192 |
394 |
193 |
55 |
0 |
| ODI |
0 |
8 |
19 |
146 |
345 |
359 |
117 |
0 |
| CDI |
0 |
1 |
10 |
115 |
472 |
2203 |
1055 |
0 |
| VCDI |
0 |
0 |
1 |
20 |
127 |
2490 |
7245 |
5890 |
|
...date precedes bulletin
|
Date: 2023-05-04:
| 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 |
67915 |
16643 |
495 |
840 |
501 |
170 |
43 |
0 |
| OW |
82 |
64 |
69 |
287 |
285 |
156 |
19 |
0 |
| VODI |
4 |
18 |
29 |
210 |
409 |
281 |
65 |
0 |
| ODI |
0 |
15 |
24 |
185 |
410 |
453 |
123 |
0 |
| CDI |
0 |
2 |
1 |
56 |
640 |
2252 |
828 |
0 |
| VCDI |
0 |
1 |
4 |
23 |
189 |
2978 |
7021 |
5310 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67916 |
16642 |
498 |
855 |
502 |
175 |
45 |
0 |
| OW |
80 |
62 |
66 |
283 |
299 |
149 |
20 |
0 |
| VODI |
5 |
19 |
27 |
204 |
399 |
277 |
68 |
0 |
| ODI |
0 |
10 |
23 |
164 |
378 |
457 |
140 |
0 |
| CDI |
0 |
9 |
4 |
73 |
609 |
2071 |
828 |
0 |
| VCDI |
0 |
1 |
4 |
22 |
247 |
3161 |
6998 |
5310 |
|
Date: 2023-05-06:
| 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 |
67925 |
16683 |
520 |
880 |
414 |
161 |
39 |
0 |
| OW |
77 |
72 |
87 |
313 |
349 |
120 |
16 |
0 |
| VODI |
0 |
18 |
27 |
273 |
478 |
306 |
60 |
0 |
| ODI |
0 |
4 |
12 |
141 |
437 |
414 |
177 |
0 |
| CDI |
0 |
1 |
0 |
29 |
722 |
2253 |
1150 |
0 |
| VCDI |
0 |
0 |
0 |
18 |
172 |
2771 |
6278 |
5703 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67926 |
16675 |
526 |
921 |
434 |
167 |
40 |
0 |
| OW |
76 |
79 |
82 |
280 |
337 |
118 |
18 |
0 |
| VODI |
0 |
19 |
23 |
250 |
462 |
298 |
72 |
0 |
| ODI |
0 |
3 |
12 |
147 |
426 |
435 |
179 |
0 |
| CDI |
0 |
2 |
3 |
38 |
672 |
2218 |
1176 |
0 |
| VCDI |
0 |
0 |
0 |
18 |
241 |
2789 |
6235 |
5703 |
|
Date: 2023-05-08:
| 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 |
68847 |
16309 |
426 |
614 |
247 |
56 |
6 |
0 |
| OW |
71 |
162 |
149 |
356 |
251 |
45 |
0 |
0 |
| VODI |
0 |
22 |
60 |
437 |
540 |
128 |
5 |
0 |
| ODI |
0 |
0 |
6 |
142 |
839 |
433 |
31 |
0 |
| CDI |
0 |
0 |
0 |
14 |
836 |
3051 |
539 |
0 |
| VCDI |
0 |
0 |
0 |
19 |
153 |
2194 |
6774 |
5338 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
68847 |
16358 |
481 |
749 |
391 |
87 |
7 |
0 |
| OW |
71 |
111 |
104 |
322 |
290 |
105 |
8 |
0 |
| VODI |
0 |
20 |
45 |
290 |
497 |
199 |
57 |
0 |
| ODI |
0 |
4 |
10 |
168 |
506 |
414 |
117 |
0 |
| CDI |
0 |
0 |
1 |
30 |
797 |
1807 |
959 |
0 |
| VCDI |
0 |
0 |
0 |
23 |
385 |
3295 |
6207 |
5338 |
|
Date: 2023-05-10:
| 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 |
70418 |
15254 |
389 |
541 |
220 |
114 |
23 |
0 |
| OW |
68 |
200 |
144 |
356 |
200 |
49 |
11 |
0 |
| VODI |
0 |
34 |
65 |
396 |
468 |
131 |
35 |
0 |
| ODI |
0 |
0 |
3 |
178 |
648 |
419 |
63 |
0 |
| CDI |
0 |
0 |
0 |
24 |
870 |
2231 |
855 |
0 |
| VCDI |
0 |
0 |
0 |
16 |
251 |
2210 |
6803 |
5413 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
70418 |
15254 |
404 |
578 |
305 |
142 |
42 |
0 |
| OW |
68 |
172 |
118 |
335 |
210 |
65 |
40 |
0 |
| VODI |
0 |
61 |
61 |
309 |
361 |
161 |
85 |
0 |
| ODI |
0 |
1 |
18 |
204 |
498 |
417 |
118 |
0 |
| CDI |
0 |
0 |
0 |
65 |
905 |
1427 |
1093 |
0 |
| VCDI |
0 |
0 |
0 |
20 |
378 |
2942 |
6412 |
5413 |
|
Date: 2023-05-12:
| 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 |
71023 |
14930 |
363 |
487 |
211 |
90 |
26 |
0 |
| OW |
64 |
306 |
139 |
292 |
200 |
68 |
9 |
0 |
| VODI |
0 |
82 |
75 |
396 |
401 |
196 |
29 |
0 |
| ODI |
0 |
17 |
14 |
165 |
600 |
329 |
86 |
0 |
| CDI |
0 |
2 |
2 |
69 |
970 |
1629 |
688 |
0 |
| VCDI |
0 |
0 |
0 |
8 |
221 |
3175 |
7499 |
4239 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
71023 |
14966 |
388 |
538 |
284 |
134 |
40 |
0 |
| OW |
64 |
241 |
100 |
227 |
205 |
98 |
32 |
0 |
| VODI |
0 |
103 |
74 |
321 |
307 |
219 |
48 |
0 |
| ODI |
0 |
24 |
25 |
198 |
451 |
352 |
162 |
0 |
| CDI |
0 |
3 |
6 |
124 |
1024 |
1329 |
916 |
0 |
| VCDI |
0 |
0 |
0 |
9 |
332 |
3355 |
7139 |
4239 |
|
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