Validation of sea ice concentration - Full domain
Bulletin date: 2025-03-27
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-03-21:
| 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 |
64496 |
16892 |
323 |
453 |
67 |
0 |
0 |
0 |
| OW |
0 |
1003 |
367 |
1040 |
288 |
8 |
0 |
0 |
| VODI |
0 |
273 |
125 |
917 |
973 |
75 |
0 |
0 |
| ODI |
0 |
36 |
47 |
429 |
1183 |
475 |
12 |
3 |
| CDI |
0 |
7 |
11 |
239 |
1694 |
3192 |
1672 |
32 |
| VCDI |
0 |
0 |
0 |
154 |
813 |
8718 |
33080 |
55646 |
|
...date precedes bulletin
|
Date: 2025-03-23:
| 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 |
64489 |
17214 |
284 |
344 |
35 |
0 |
0 |
0 |
| OW |
0 |
1059 |
437 |
1028 |
226 |
6 |
0 |
0 |
| VODI |
0 |
305 |
106 |
978 |
754 |
104 |
0 |
0 |
| ODI |
0 |
70 |
37 |
422 |
964 |
492 |
36 |
14 |
| CDI |
0 |
28 |
23 |
275 |
1719 |
1917 |
1712 |
254 |
| VCDI |
0 |
14 |
6 |
193 |
535 |
7945 |
28328 |
62390 |
|
...date precedes bulletin
|
Date: 2025-03-25:
| 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 |
65266 |
16873 |
160 |
803 |
8 |
0 |
0 |
0 |
| OW |
0 |
1126 |
385 |
1097 |
73 |
0 |
0 |
0 |
| VODI |
0 |
183 |
149 |
1506 |
362 |
29 |
0 |
0 |
| ODI |
0 |
32 |
18 |
1006 |
885 |
186 |
2 |
2 |
| CDI |
0 |
19 |
11 |
2032 |
595 |
1916 |
293 |
25 |
| VCDI |
0 |
1 |
0 |
19507 |
2397 |
4844 |
19012 |
53940 |
|
...date precedes bulletin
|
Date: 2025-03-27:
| 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 |
66575 |
15843 |
370 |
343 |
31 |
0 |
0 |
0 |
| OW |
1 |
1266 |
429 |
794 |
191 |
5 |
0 |
0 |
| VODI |
0 |
318 |
156 |
1070 |
545 |
103 |
0 |
0 |
| ODI |
0 |
84 |
33 |
471 |
1209 |
430 |
8 |
0 |
| CDI |
0 |
50 |
35 |
191 |
1330 |
2966 |
597 |
74 |
| VCDI |
0 |
19 |
22 |
188 |
709 |
7131 |
25565 |
65591 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
66575 |
15924 |
392 |
362 |
39 |
0 |
0 |
0 |
| OW |
1 |
1157 |
414 |
816 |
197 |
13 |
0 |
0 |
| VODI |
0 |
343 |
149 |
1062 |
597 |
98 |
0 |
0 |
| ODI |
0 |
92 |
35 |
441 |
1190 |
443 |
13 |
0 |
| CDI |
0 |
45 |
39 |
195 |
1266 |
2949 |
727 |
93 |
| VCDI |
0 |
19 |
16 |
181 |
726 |
7132 |
25430 |
65572 |
|
Date: 2025-03-29:
| 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 |
66191 |
15983 |
361 |
362 |
55 |
0 |
0 |
0 |
| OW |
19 |
1480 |
382 |
765 |
236 |
27 |
0 |
0 |
| VODI |
9 |
343 |
166 |
1120 |
539 |
103 |
4 |
0 |
| ODI |
3 |
113 |
14 |
460 |
1251 |
444 |
24 |
2 |
| CDI |
1 |
78 |
33 |
210 |
1349 |
3230 |
929 |
91 |
| VCDI |
4 |
26 |
18 |
158 |
732 |
6986 |
26293 |
64149 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
66190 |
16153 |
376 |
390 |
71 |
0 |
0 |
0 |
| OW |
17 |
1288 |
363 |
767 |
225 |
30 |
0 |
0 |
| VODI |
12 |
366 |
172 |
1099 |
570 |
99 |
3 |
0 |
| ODI |
3 |
113 |
18 |
464 |
1272 |
470 |
23 |
3 |
| CDI |
1 |
81 |
34 |
216 |
1242 |
3201 |
1094 |
93 |
| VCDI |
4 |
22 |
11 |
139 |
782 |
6990 |
26130 |
64146 |
|
Date: 2025-03-31:
| 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 |
65693 |
16826 |
388 |
543 |
55 |
3 |
0 |
0 |
| OW |
24 |
991 |
261 |
909 |
366 |
17 |
0 |
0 |
| VODI |
1 |
282 |
98 |
841 |
812 |
137 |
0 |
0 |
| ODI |
0 |
85 |
57 |
432 |
1013 |
692 |
16 |
10 |
| CDI |
0 |
53 |
22 |
293 |
1253 |
3339 |
1398 |
90 |
| VCDI |
0 |
3 |
1 |
50 |
687 |
7088 |
30835 |
59079 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
65690 |
16491 |
346 |
426 |
56 |
0 |
0 |
0 |
| OW |
26 |
1198 |
274 |
913 |
281 |
12 |
0 |
0 |
| VODI |
2 |
387 |
122 |
948 |
874 |
115 |
0 |
0 |
| ODI |
0 |
108 |
63 |
470 |
1075 |
731 |
20 |
8 |
| CDI |
0 |
53 |
22 |
286 |
1246 |
3743 |
1369 |
119 |
| VCDI |
0 |
3 |
0 |
25 |
654 |
6675 |
30860 |
59052 |
|
Date: 2025-04-02:
| 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 |
65799 |
16981 |
507 |
435 |
94 |
1 |
0 |
0 |
| OW |
1 |
924 |
362 |
993 |
289 |
48 |
0 |
0 |
| VODI |
3 |
211 |
166 |
1084 |
909 |
132 |
5 |
0 |
| ODI |
1 |
45 |
29 |
276 |
1298 |
576 |
31 |
5 |
| CDI |
1 |
7 |
4 |
175 |
974 |
3391 |
1336 |
73 |
| VCDI |
4 |
0 |
0 |
24 |
387 |
4903 |
26626 |
65633 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
65798 |
15943 |
488 |
588 |
156 |
3 |
0 |
0 |
| OW |
1 |
1322 |
250 |
733 |
381 |
49 |
2 |
0 |
| VODI |
4 |
629 |
181 |
903 |
791 |
194 |
9 |
0 |
| ODI |
1 |
210 |
101 |
401 |
1068 |
586 |
69 |
3 |
| CDI |
1 |
64 |
44 |
309 |
1115 |
3096 |
1587 |
61 |
| VCDI |
4 |
0 |
4 |
53 |
440 |
5123 |
26331 |
65647 |
|
Date: 2025-04-04:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
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