Validation of sea ice concentration - European sector
Bulletin date: 2023-04-27
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
|
...date precedes bulletin
|
Date: 2023-04-23:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2023-04-25:
| 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 |
67393 |
16090 |
689 |
1378 |
506 |
102 |
16 |
0 |
| OW |
59 |
113 |
75 |
363 |
461 |
80 |
1 |
0 |
| VODI |
0 |
59 |
33 |
243 |
562 |
241 |
22 |
0 |
| ODI |
0 |
26 |
20 |
119 |
449 |
455 |
67 |
0 |
| CDI |
0 |
13 |
2 |
101 |
469 |
1124 |
583 |
0 |
| VCDI |
0 |
1 |
0 |
59 |
669 |
3744 |
6630 |
6083 |
|
...date precedes bulletin
|
Date: 2023-04-27:
| 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 |
67235 |
16294 |
682 |
1432 |
467 |
130 |
7 |
0 |
| OW |
59 |
124 |
67 |
388 |
459 |
84 |
1 |
0 |
| VODI |
0 |
48 |
38 |
236 |
639 |
211 |
48 |
0 |
| ODI |
0 |
17 |
24 |
119 |
502 |
372 |
82 |
0 |
| CDI |
0 |
12 |
3 |
100 |
435 |
1209 |
595 |
0 |
| VCDI |
0 |
0 |
0 |
98 |
572 |
3205 |
7446 |
5660 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67235 |
16317 |
691 |
1474 |
521 |
145 |
7 |
0 |
| OW |
59 |
105 |
64 |
354 |
423 |
67 |
10 |
0 |
| VODI |
0 |
44 |
32 |
250 |
609 |
220 |
38 |
0 |
| ODI |
0 |
17 |
25 |
102 |
517 |
362 |
87 |
0 |
| CDI |
0 |
12 |
2 |
99 |
428 |
1222 |
592 |
0 |
| VCDI |
0 |
0 |
0 |
94 |
576 |
3195 |
7445 |
5660 |
|
Date: 2023-04-29:
| 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 |
67688 |
16217 |
711 |
1285 |
478 |
137 |
4 |
0 |
| OW |
74 |
156 |
62 |
421 |
389 |
131 |
1 |
0 |
| VODI |
0 |
79 |
56 |
231 |
507 |
250 |
52 |
0 |
| ODI |
0 |
19 |
20 |
120 |
382 |
411 |
86 |
0 |
| CDI |
0 |
22 |
2 |
120 |
407 |
1123 |
540 |
0 |
| VCDI |
0 |
0 |
0 |
80 |
680 |
3624 |
6979 |
5556 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67688 |
16250 |
710 |
1334 |
516 |
152 |
4 |
0 |
| OW |
74 |
134 |
68 |
378 |
376 |
111 |
7 |
0 |
| VODI |
0 |
67 |
55 |
240 |
491 |
260 |
46 |
0 |
| ODI |
0 |
20 |
16 |
120 |
377 |
413 |
83 |
0 |
| CDI |
0 |
22 |
2 |
108 |
419 |
1182 |
552 |
0 |
| VCDI |
0 |
0 |
0 |
77 |
664 |
3558 |
6970 |
5556 |
|
Date: 2023-05-01:
| 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 |
68304 |
16022 |
649 |
1011 |
305 |
89 |
0 |
0 |
| OW |
93 |
71 |
98 |
527 |
264 |
47 |
0 |
0 |
| VODI |
13 |
12 |
25 |
340 |
469 |
108 |
0 |
0 |
| ODI |
0 |
6 |
0 |
112 |
693 |
189 |
13 |
0 |
| CDI |
0 |
0 |
0 |
59 |
680 |
2622 |
483 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
175 |
2781 |
6954 |
5882 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
68285 |
15860 |
637 |
1214 |
575 |
178 |
0 |
0 |
| OW |
95 |
132 |
70 |
351 |
325 |
143 |
22 |
0 |
| VODI |
13 |
73 |
34 |
231 |
412 |
307 |
62 |
0 |
| ODI |
15 |
31 |
18 |
91 |
371 |
393 |
126 |
0 |
| CDI |
2 |
11 |
13 |
79 |
390 |
1204 |
832 |
0 |
| VCDI |
0 |
4 |
0 |
87 |
513 |
3611 |
6408 |
5882 |
|
Date: 2023-05-03:
| 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 |
68143 |
15907 |
697 |
1315 |
456 |
65 |
0 |
0 |
| OW |
91 |
28 |
48 |
415 |
327 |
47 |
1 |
0 |
| VODI |
6 |
5 |
11 |
234 |
591 |
116 |
12 |
0 |
| ODI |
0 |
2 |
1 |
98 |
728 |
264 |
34 |
0 |
| CDI |
0 |
0 |
1 |
47 |
786 |
2438 |
398 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
252 |
3551 |
5723 |
6259 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
68117 |
15774 |
639 |
1392 |
694 |
121 |
11 |
0 |
| OW |
82 |
128 |
64 |
319 |
373 |
131 |
32 |
0 |
| VODI |
15 |
37 |
44 |
175 |
590 |
301 |
57 |
0 |
| ODI |
20 |
3 |
11 |
107 |
536 |
324 |
103 |
0 |
| CDI |
6 |
0 |
0 |
92 |
496 |
1281 |
392 |
0 |
| VCDI |
0 |
0 |
0 |
27 |
451 |
4323 |
5573 |
6259 |
|
Date: 2023-05-05:
| 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 |
68339 |
15524 |
710 |
1528 |
438 |
72 |
0 |
0 |
| OW |
84 |
14 |
41 |
408 |
416 |
37 |
0 |
0 |
| VODI |
0 |
0 |
6 |
223 |
697 |
163 |
3 |
0 |
| ODI |
0 |
0 |
0 |
99 |
692 |
372 |
48 |
0 |
| CDI |
0 |
0 |
0 |
16 |
741 |
2732 |
633 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
181 |
2806 |
6092 |
5985 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
68291 |
15440 |
673 |
1513 |
698 |
130 |
9 |
0 |
| OW |
93 |
85 |
62 |
345 |
441 |
127 |
31 |
0 |
| VODI |
15 |
13 |
19 |
264 |
583 |
312 |
80 |
0 |
| ODI |
23 |
0 |
3 |
99 |
492 |
322 |
155 |
0 |
| CDI |
1 |
0 |
0 |
30 |
580 |
1560 |
490 |
0 |
| VCDI |
0 |
0 |
0 |
23 |
371 |
3731 |
6011 |
5985 |
|
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