Validation of sea ice concentration - Full domain
Bulletin date: 2023-12-07
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-12-01:
| 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 |
89279 |
14434 |
659 |
917 |
213 |
79 |
0 |
0 |
| OW |
93 |
1505 |
352 |
1483 |
382 |
105 |
0 |
0 |
| VODI |
3 |
420 |
260 |
1220 |
647 |
321 |
0 |
0 |
| ODI |
5 |
139 |
80 |
736 |
823 |
500 |
2 |
0 |
| CDI |
0 |
37 |
39 |
323 |
1051 |
2203 |
333 |
17 |
| VCDI |
0 |
5 |
8 |
113 |
986 |
5614 |
23061 |
46296 |
|
...date precedes bulletin
|
Date: 2023-12-03:
| 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 |
87007 |
14980 |
633 |
949 |
201 |
34 |
0 |
0 |
| OW |
99 |
1771 |
381 |
1572 |
222 |
79 |
0 |
0 |
| VODI |
27 |
308 |
183 |
1681 |
1022 |
365 |
0 |
0 |
| ODI |
1 |
68 |
46 |
747 |
952 |
528 |
4 |
0 |
| CDI |
0 |
21 |
28 |
334 |
1020 |
2148 |
471 |
20 |
| VCDI |
0 |
3 |
3 |
78 |
717 |
5048 |
21823 |
49169 |
|
...date precedes bulletin
|
Date: 2023-12-05:
| 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 |
85069 |
17085 |
656 |
716 |
173 |
6 |
0 |
0 |
| OW |
165 |
1236 |
574 |
1320 |
184 |
7 |
0 |
0 |
| VODI |
14 |
140 |
93 |
2137 |
1010 |
51 |
0 |
0 |
| ODI |
0 |
20 |
4 |
435 |
1622 |
357 |
14 |
0 |
| CDI |
0 |
6 |
6 |
152 |
1061 |
2193 |
402 |
6 |
| VCDI |
0 |
0 |
3 |
39 |
329 |
4367 |
25736 |
47355 |
|
...date precedes bulletin
|
Date: 2023-12-07:
| 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 |
83667 |
17334 |
691 |
1043 |
103 |
16 |
0 |
0 |
| OW |
202 |
1517 |
376 |
1131 |
327 |
16 |
0 |
0 |
| VODI |
18 |
470 |
268 |
1647 |
1010 |
151 |
0 |
0 |
| ODI |
0 |
79 |
45 |
384 |
1165 |
614 |
0 |
0 |
| CDI |
0 |
29 |
14 |
200 |
950 |
2039 |
398 |
1 |
| VCDI |
0 |
10 |
18 |
129 |
444 |
4315 |
25262 |
48660 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
83651 |
17401 |
705 |
1124 |
141 |
16 |
0 |
0 |
| OW |
211 |
1431 |
376 |
1064 |
330 |
13 |
0 |
0 |
| VODI |
24 |
491 |
264 |
1586 |
960 |
164 |
0 |
0 |
| ODI |
1 |
82 |
37 |
445 |
1181 |
601 |
2 |
0 |
| CDI |
0 |
25 |
16 |
196 |
940 |
2144 |
404 |
4 |
| VCDI |
0 |
9 |
14 |
119 |
447 |
4213 |
25254 |
48657 |
|
Date: 2023-12-09:
| 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 |
82832 |
15812 |
837 |
1279 |
184 |
29 |
0 |
0 |
| OW |
653 |
1097 |
366 |
1484 |
600 |
56 |
0 |
0 |
| VODI |
368 |
304 |
114 |
1015 |
1413 |
331 |
2 |
0 |
| ODI |
23 |
76 |
16 |
348 |
900 |
1000 |
55 |
0 |
| CDI |
0 |
74 |
23 |
167 |
686 |
2777 |
948 |
20 |
| VCDI |
0 |
34 |
47 |
227 |
606 |
3041 |
18702 |
56197 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
82771 |
15849 |
826 |
1479 |
185 |
30 |
0 |
0 |
| OW |
625 |
1053 |
368 |
1286 |
658 |
50 |
0 |
0 |
| VODI |
457 |
302 |
126 |
1007 |
1358 |
360 |
0 |
0 |
| ODI |
23 |
89 |
16 |
373 |
871 |
937 |
76 |
0 |
| CDI |
0 |
64 |
15 |
166 |
719 |
2895 |
1009 |
20 |
| VCDI |
0 |
40 |
52 |
209 |
598 |
2962 |
18622 |
56197 |
|
Date: 2023-12-11:
| 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 |
80601 |
16696 |
703 |
1234 |
167 |
11 |
0 |
0 |
| OW |
277 |
1436 |
795 |
1328 |
261 |
22 |
0 |
0 |
| VODI |
19 |
236 |
105 |
2107 |
826 |
35 |
0 |
0 |
| ODI |
1 |
55 |
37 |
508 |
1845 |
211 |
14 |
0 |
| CDI |
4 |
20 |
40 |
325 |
1383 |
3240 |
246 |
5 |
| VCDI |
5 |
0 |
0 |
65 |
667 |
3664 |
20081 |
55468 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
80500 |
16010 |
729 |
1635 |
358 |
33 |
0 |
0 |
| OW |
333 |
1613 |
473 |
1189 |
651 |
44 |
7 |
0 |
| VODI |
59 |
537 |
301 |
1317 |
1171 |
273 |
14 |
0 |
| ODI |
6 |
110 |
77 |
715 |
1070 |
918 |
86 |
0 |
| CDI |
5 |
116 |
53 |
398 |
1060 |
2247 |
1094 |
4 |
| VCDI |
4 |
57 |
47 |
313 |
839 |
3668 |
19140 |
55469 |
|
Date: 2023-12-13:
| 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 |
78003 |
16495 |
643 |
1581 |
494 |
1 |
0 |
0 |
| OW |
195 |
1560 |
456 |
1514 |
654 |
69 |
0 |
0 |
| VODI |
54 |
450 |
251 |
1628 |
1160 |
181 |
0 |
0 |
| ODI |
1 |
104 |
36 |
781 |
1314 |
415 |
0 |
0 |
| CDI |
1 |
38 |
21 |
377 |
1614 |
3059 |
491 |
7 |
| VCDI |
9 |
27 |
22 |
175 |
884 |
6121 |
20039 |
53818 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
77962 |
15600 |
543 |
1448 |
653 |
37 |
0 |
0 |
| OW |
176 |
1930 |
445 |
1411 |
837 |
175 |
2 |
0 |
| VODI |
106 |
747 |
283 |
1451 |
1089 |
464 |
7 |
0 |
| ODI |
9 |
182 |
72 |
876 |
1051 |
1012 |
41 |
0 |
| CDI |
3 |
139 |
51 |
554 |
1437 |
2907 |
1392 |
5 |
| VCDI |
7 |
76 |
35 |
316 |
1053 |
5251 |
19088 |
53820 |
|
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 |
78866 |
14648 |
480 |
995 |
513 |
35 |
0 |
0 |
| OW |
152 |
1674 |
360 |
1313 |
683 |
168 |
0 |
0 |
| VODI |
120 |
723 |
309 |
1438 |
1405 |
384 |
0 |
0 |
| ODI |
6 |
221 |
89 |
644 |
1238 |
677 |
0 |
0 |
| CDI |
2 |
117 |
130 |
592 |
1406 |
2785 |
401 |
0 |
| VCDI |
8 |
48 |
28 |
190 |
914 |
8072 |
17706 |
55203 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
78678 |
13172 |
350 |
1020 |
678 |
88 |
0 |
0 |
| OW |
217 |
2087 |
336 |
947 |
646 |
285 |
4 |
0 |
| VODI |
178 |
1398 |
325 |
1388 |
1332 |
587 |
24 |
0 |
| ODI |
71 |
365 |
152 |
853 |
1184 |
874 |
141 |
0 |
| CDI |
3 |
294 |
174 |
594 |
1108 |
2918 |
888 |
0 |
| VCDI |
7 |
115 |
59 |
370 |
1211 |
7369 |
17050 |
55203 |
|
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