Validation of sea ice concentration - Full domain
Bulletin date: 2025-01-02
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-12-27:
| 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 |
78154 |
14159 |
200 |
183 |
32 |
0 |
0 |
0 |
| OW |
190 |
2158 |
374 |
732 |
130 |
17 |
0 |
0 |
| VODI |
94 |
797 |
251 |
1294 |
800 |
138 |
0 |
0 |
| ODI |
26 |
195 |
118 |
680 |
1282 |
532 |
8 |
0 |
| CDI |
2 |
103 |
92 |
566 |
1331 |
2030 |
821 |
21 |
| VCDI |
0 |
58 |
43 |
262 |
1182 |
4925 |
21023 |
59740 |
|
...date precedes bulletin
|
Date: 2024-12-29:
| 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 |
78034 |
13975 |
234 |
241 |
11 |
1 |
0 |
0 |
| OW |
128 |
2079 |
399 |
676 |
190 |
43 |
0 |
0 |
| VODI |
51 |
871 |
324 |
1295 |
744 |
137 |
0 |
0 |
| ODI |
32 |
210 |
108 |
588 |
1213 |
421 |
10 |
0 |
| CDI |
0 |
105 |
53 |
395 |
1540 |
2364 |
777 |
29 |
| VCDI |
0 |
117 |
45 |
237 |
641 |
5227 |
18550 |
62648 |
|
...date precedes bulletin
|
Date: 2024-12-31:
| 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 |
77245 |
15814 |
315 |
185 |
10 |
0 |
0 |
0 |
| OW |
47 |
1681 |
541 |
1187 |
111 |
8 |
0 |
0 |
| VODI |
4 |
240 |
148 |
1406 |
1046 |
83 |
5 |
0 |
| ODI |
4 |
56 |
49 |
481 |
1521 |
404 |
22 |
0 |
| CDI |
2 |
26 |
22 |
369 |
1281 |
2266 |
635 |
24 |
| VCDI |
0 |
0 |
0 |
77 |
710 |
4736 |
20744 |
61238 |
|
...date precedes bulletin
|
Date: 2025-01-02:
| 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 |
77416 |
15286 |
301 |
297 |
17 |
0 |
0 |
0 |
| OW |
79 |
1587 |
391 |
1127 |
405 |
26 |
0 |
0 |
| VODI |
1 |
438 |
192 |
937 |
732 |
316 |
31 |
0 |
| ODI |
4 |
111 |
95 |
593 |
801 |
525 |
248 |
0 |
| CDI |
6 |
81 |
45 |
491 |
1062 |
2119 |
815 |
7 |
| VCDI |
0 |
57 |
28 |
383 |
1068 |
6742 |
26773 |
53110 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
77465 |
15972 |
490 |
635 |
54 |
0 |
0 |
0 |
| OW |
31 |
1053 |
268 |
1125 |
603 |
51 |
0 |
0 |
| VODI |
0 |
361 |
186 |
814 |
796 |
430 |
40 |
0 |
| ODI |
6 |
79 |
67 |
564 |
787 |
706 |
212 |
0 |
| CDI |
4 |
58 |
20 |
456 |
994 |
2147 |
1109 |
21 |
| VCDI |
0 |
37 |
21 |
234 |
851 |
6394 |
26506 |
53096 |
|
Date: 2025-01-04:
| 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 |
76795 |
15438 |
375 |
418 |
73 |
0 |
0 |
0 |
| OW |
122 |
1385 |
437 |
1070 |
417 |
20 |
0 |
0 |
| VODI |
7 |
487 |
245 |
981 |
688 |
174 |
0 |
0 |
| ODI |
0 |
145 |
63 |
614 |
859 |
430 |
32 |
0 |
| CDI |
6 |
157 |
54 |
482 |
1163 |
2117 |
733 |
17 |
| VCDI |
4 |
149 |
71 |
360 |
1181 |
6503 |
20137 |
60334 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
76898 |
16132 |
586 |
871 |
184 |
3 |
0 |
0 |
| OW |
25 |
900 |
308 |
980 |
574 |
57 |
0 |
0 |
| VODI |
1 |
428 |
217 |
903 |
746 |
241 |
1 |
0 |
| ODI |
0 |
126 |
47 |
576 |
889 |
601 |
50 |
0 |
| CDI |
6 |
92 |
42 |
337 |
1135 |
2112 |
818 |
28 |
| VCDI |
4 |
83 |
45 |
258 |
853 |
6230 |
20033 |
60323 |
|
Date: 2025-01-06:
| 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 |
75296 |
16575 |
520 |
432 |
119 |
8 |
0 |
0 |
| OW |
57 |
1079 |
568 |
1134 |
212 |
20 |
0 |
0 |
| VODI |
7 |
167 |
110 |
1762 |
873 |
84 |
0 |
0 |
| ODI |
0 |
26 |
11 |
355 |
1261 |
338 |
0 |
0 |
| CDI |
0 |
23 |
18 |
229 |
982 |
2149 |
325 |
21 |
| VCDI |
10 |
0 |
2 |
89 |
670 |
5037 |
23342 |
60832 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
75301 |
16480 |
720 |
1178 |
368 |
90 |
0 |
0 |
| OW |
58 |
930 |
243 |
1007 |
466 |
149 |
2 |
0 |
| VODI |
1 |
316 |
159 |
915 |
853 |
224 |
52 |
0 |
| ODI |
0 |
119 |
77 |
452 |
705 |
602 |
151 |
0 |
| CDI |
0 |
25 |
23 |
319 |
937 |
1826 |
1088 |
41 |
| VCDI |
10 |
0 |
7 |
130 |
788 |
4745 |
22374 |
60812 |
|
Date: 2025-01-08:
| 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 |
72516 |
17689 |
604 |
759 |
136 |
38 |
0 |
0 |
| OW |
39 |
977 |
329 |
1023 |
569 |
29 |
0 |
0 |
| VODI |
3 |
131 |
97 |
1042 |
1300 |
229 |
3 |
0 |
| ODI |
0 |
27 |
28 |
336 |
981 |
716 |
29 |
2 |
| CDI |
0 |
18 |
15 |
216 |
836 |
2133 |
1645 |
88 |
| VCDI |
0 |
16 |
4 |
21 |
301 |
4795 |
23485 |
61538 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
72541 |
17699 |
660 |
1176 |
689 |
150 |
9 |
0 |
| OW |
15 |
857 |
236 |
919 |
586 |
272 |
44 |
0 |
| VODI |
2 |
204 |
99 |
674 |
1032 |
458 |
85 |
0 |
| ODI |
0 |
66 |
43 |
315 |
661 |
779 |
167 |
0 |
| CDI |
0 |
21 |
38 |
264 |
664 |
1534 |
2041 |
63 |
| VCDI |
0 |
11 |
1 |
49 |
491 |
4747 |
22816 |
61565 |
|
Date: 2025-01-10:
| 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 |
72278 |
16932 |
462 |
582 |
96 |
12 |
0 |
0 |
| OW |
38 |
1175 |
358 |
813 |
453 |
136 |
1 |
0 |
| VODI |
11 |
220 |
149 |
923 |
1084 |
481 |
124 |
0 |
| ODI |
0 |
41 |
27 |
372 |
1037 |
761 |
203 |
1 |
| CDI |
0 |
22 |
22 |
269 |
1063 |
2556 |
1293 |
39 |
| VCDI |
10 |
0 |
2 |
59 |
405 |
4070 |
21383 |
64780 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
72263 |
16916 |
573 |
946 |
518 |
504 |
128 |
0 |
| OW |
55 |
1089 |
192 |
681 |
521 |
181 |
207 |
0 |
| VODI |
9 |
289 |
169 |
650 |
891 |
496 |
245 |
0 |
| ODI |
0 |
75 |
53 |
342 |
770 |
816 |
248 |
1 |
| CDI |
3 |
21 |
29 |
298 |
929 |
1918 |
1387 |
55 |
| VCDI |
7 |
0 |
4 |
101 |
509 |
4101 |
20789 |
64764 |
|
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