Validation of sea ice concentration - European sector
Bulletin date: 2023-04-13
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-04-07:
| 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 |
66381 |
16340 |
701 |
1116 |
320 |
27 |
0 |
0 |
| OW |
52 |
136 |
100 |
472 |
285 |
63 |
0 |
0 |
| VODI |
0 |
35 |
54 |
361 |
476 |
138 |
2 |
0 |
| ODI |
0 |
4 |
2 |
186 |
419 |
234 |
25 |
0 |
| CDI |
0 |
1 |
0 |
121 |
473 |
490 |
184 |
0 |
| VCDI |
0 |
1 |
4 |
84 |
403 |
3303 |
8679 |
7428 |
|
...date precedes bulletin
|
Date: 2023-04-09:
| 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 |
66438 |
16117 |
659 |
1318 |
448 |
33 |
0 |
0 |
| OW |
52 |
168 |
104 |
418 |
283 |
64 |
0 |
0 |
| VODI |
0 |
57 |
70 |
328 |
418 |
153 |
5 |
0 |
| ODI |
0 |
28 |
11 |
188 |
413 |
217 |
52 |
0 |
| CDI |
0 |
24 |
17 |
97 |
540 |
522 |
259 |
0 |
| VCDI |
0 |
7 |
10 |
65 |
397 |
3882 |
9215 |
6023 |
|
...date precedes bulletin
|
Date: 2023-04-11:
| 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 |
66635 |
16184 |
706 |
1309 |
281 |
18 |
0 |
0 |
| OW |
52 |
135 |
70 |
499 |
295 |
49 |
0 |
0 |
| VODI |
0 |
59 |
46 |
284 |
596 |
118 |
5 |
0 |
| ODI |
0 |
33 |
23 |
155 |
528 |
276 |
18 |
0 |
| CDI |
0 |
23 |
5 |
69 |
512 |
1330 |
318 |
0 |
| VCDI |
0 |
18 |
7 |
54 |
371 |
4209 |
7407 |
6403 |
|
...date precedes bulletin
|
Date: 2023-04-13:
| 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 |
67017 |
16138 |
686 |
1243 |
304 |
34 |
1 |
0 |
| OW |
52 |
164 |
94 |
457 |
336 |
63 |
7 |
0 |
| VODI |
0 |
29 |
65 |
358 |
524 |
134 |
21 |
0 |
| ODI |
0 |
12 |
13 |
207 |
463 |
239 |
38 |
0 |
| CDI |
0 |
17 |
7 |
131 |
505 |
1084 |
463 |
0 |
| VCDI |
0 |
0 |
4 |
27 |
361 |
4289 |
7787 |
5726 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67017 |
16180 |
698 |
1273 |
339 |
43 |
3 |
0 |
| OW |
52 |
119 |
88 |
446 |
307 |
57 |
5 |
0 |
| VODI |
0 |
33 |
58 |
353 |
520 |
140 |
21 |
0 |
| ODI |
0 |
12 |
13 |
196 |
449 |
246 |
38 |
0 |
| CDI |
0 |
16 |
7 |
125 |
510 |
1010 |
428 |
0 |
| VCDI |
0 |
0 |
5 |
30 |
368 |
4347 |
7822 |
5726 |
|
Date: 2023-04-15:
| 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 |
67198 |
16174 |
656 |
1262 |
335 |
38 |
1 |
0 |
| OW |
52 |
163 |
97 |
429 |
338 |
87 |
10 |
0 |
| VODI |
0 |
81 |
69 |
374 |
417 |
165 |
12 |
0 |
| ODI |
0 |
34 |
28 |
161 |
478 |
225 |
32 |
0 |
| CDI |
0 |
16 |
16 |
110 |
527 |
1108 |
519 |
0 |
| VCDI |
0 |
8 |
1 |
37 |
429 |
4541 |
7555 |
5317 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67198 |
16222 |
687 |
1302 |
380 |
69 |
2 |
0 |
| OW |
52 |
118 |
79 |
407 |
316 |
68 |
9 |
0 |
| VODI |
0 |
74 |
57 |
367 |
415 |
161 |
13 |
0 |
| ODI |
0 |
36 |
25 |
145 |
473 |
219 |
31 |
0 |
| CDI |
0 |
19 |
17 |
115 |
519 |
1240 |
517 |
0 |
| VCDI |
0 |
7 |
2 |
37 |
421 |
4407 |
7557 |
5317 |
|
Date: 2023-04-17:
| 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 |
67588 |
15844 |
709 |
1215 |
267 |
21 |
0 |
0 |
| OW |
52 |
154 |
122 |
614 |
286 |
32 |
6 |
0 |
| VODI |
0 |
74 |
39 |
410 |
613 |
57 |
10 |
0 |
| ODI |
0 |
9 |
14 |
120 |
659 |
266 |
29 |
0 |
| CDI |
0 |
3 |
2 |
53 |
482 |
1708 |
221 |
0 |
| VCDI |
0 |
19 |
0 |
19 |
384 |
4238 |
6795 |
5966 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67588 |
15819 |
711 |
1386 |
410 |
62 |
11 |
0 |
| OW |
52 |
139 |
76 |
441 |
275 |
46 |
10 |
0 |
| VODI |
0 |
83 |
60 |
298 |
494 |
101 |
21 |
0 |
| ODI |
0 |
38 |
25 |
131 |
485 |
277 |
44 |
0 |
| CDI |
0 |
21 |
13 |
108 |
511 |
1168 |
420 |
0 |
| VCDI |
0 |
3 |
1 |
67 |
516 |
4668 |
6555 |
5966 |
|
Date: 2023-04-19:
| 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 |
67913 |
15878 |
702 |
1356 |
239 |
23 |
11 |
0 |
| OW |
51 |
153 |
99 |
488 |
358 |
16 |
5 |
0 |
| VODI |
0 |
40 |
35 |
321 |
589 |
79 |
0 |
0 |
| ODI |
0 |
9 |
11 |
131 |
562 |
244 |
1 |
0 |
| CDI |
0 |
13 |
0 |
92 |
614 |
1195 |
198 |
0 |
| VCDI |
0 |
14 |
0 |
13 |
543 |
3973 |
7376 |
5755 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67913 |
15801 |
679 |
1382 |
360 |
32 |
14 |
0 |
| OW |
51 |
144 |
75 |
364 |
334 |
34 |
2 |
0 |
| VODI |
0 |
98 |
58 |
296 |
507 |
134 |
0 |
0 |
| ODI |
0 |
40 |
23 |
155 |
475 |
323 |
16 |
0 |
| CDI |
0 |
20 |
12 |
158 |
503 |
930 |
335 |
0 |
| VCDI |
0 |
4 |
0 |
46 |
726 |
4077 |
7224 |
5755 |
|
Date: 2023-04-21:
| 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 |
67654 |
15948 |
671 |
1251 |
355 |
34 |
21 |
0 |
| OW |
60 |
241 |
73 |
417 |
402 |
32 |
4 |
0 |
| VODI |
0 |
115 |
50 |
252 |
554 |
141 |
3 |
0 |
| ODI |
0 |
21 |
24 |
114 |
507 |
351 |
27 |
0 |
| CDI |
0 |
13 |
2 |
125 |
480 |
949 |
499 |
3 |
| VCDI |
0 |
8 |
0 |
32 |
505 |
4006 |
7628 |
5528 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67654 |
15919 |
616 |
1233 |
526 |
65 |
24 |
0 |
| OW |
60 |
189 |
106 |
335 |
373 |
67 |
3 |
0 |
| VODI |
0 |
126 |
37 |
277 |
475 |
222 |
12 |
0 |
| ODI |
0 |
83 |
30 |
117 |
428 |
282 |
91 |
0 |
| CDI |
0 |
26 |
27 |
131 |
432 |
848 |
443 |
0 |
| VCDI |
0 |
3 |
4 |
98 |
569 |
4029 |
7609 |
5531 |
|
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