Validation of sea ice concentration - Full domain
Bulletin date: 2025-06-12
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-06-06:
| 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 |
79571 |
14901 |
125 |
116 |
3 |
2 |
0 |
0 |
| OW |
0 |
4526 |
874 |
1391 |
132 |
22 |
0 |
0 |
| VODI |
0 |
639 |
516 |
3592 |
1581 |
185 |
11 |
0 |
| ODI |
0 |
21 |
33 |
1360 |
4589 |
1012 |
205 |
4 |
| CDI |
0 |
6 |
7 |
269 |
4077 |
11965 |
5168 |
68 |
| VCDI |
0 |
2 |
3 |
33 |
496 |
3808 |
27172 |
26258 |
|
...date precedes bulletin
|
Date: 2025-06-08:
| 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 |
82104 |
12908 |
108 |
119 |
11 |
0 |
0 |
0 |
| OW |
310 |
4291 |
829 |
1442 |
189 |
7 |
0 |
0 |
| VODI |
0 |
806 |
540 |
3621 |
1788 |
133 |
8 |
0 |
| ODI |
0 |
44 |
61 |
1694 |
4508 |
844 |
204 |
5 |
| CDI |
0 |
11 |
12 |
408 |
4199 |
11474 |
5506 |
71 |
| VCDI |
0 |
2 |
3 |
32 |
295 |
4078 |
23649 |
28429 |
|
...date precedes bulletin
|
Date: 2025-06-10:
| 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 |
82210 |
15244 |
155 |
136 |
16 |
1 |
0 |
0 |
| OW |
49 |
3519 |
1211 |
1287 |
168 |
2 |
0 |
0 |
| VODI |
13 |
263 |
297 |
5196 |
1603 |
49 |
3 |
0 |
| ODI |
1 |
22 |
8 |
776 |
6014 |
962 |
43 |
1 |
| CDI |
0 |
2 |
0 |
110 |
3057 |
11454 |
3139 |
10 |
| VCDI |
0 |
0 |
0 |
0 |
272 |
3528 |
25971 |
27951 |
|
...date precedes bulletin
|
Date: 2025-06-12:
| 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 |
82243 |
15940 |
169 |
238 |
16 |
1 |
1 |
0 |
| OW |
145 |
3951 |
1044 |
1282 |
154 |
9 |
0 |
0 |
| VODI |
12 |
578 |
551 |
4565 |
1803 |
114 |
8 |
0 |
| ODI |
0 |
38 |
30 |
1081 |
4168 |
1558 |
78 |
0 |
| CDI |
0 |
17 |
12 |
225 |
2889 |
9685 |
5437 |
66 |
| VCDI |
0 |
0 |
0 |
6 |
696 |
9803 |
21340 |
24790 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
82261 |
16206 |
228 |
248 |
19 |
1 |
1 |
0 |
| OW |
134 |
3695 |
999 |
1298 |
152 |
9 |
0 |
0 |
| VODI |
5 |
564 |
527 |
4460 |
1753 |
122 |
4 |
0 |
| ODI |
0 |
42 |
34 |
1118 |
4087 |
1443 |
61 |
0 |
| CDI |
0 |
17 |
18 |
267 |
3005 |
9763 |
5536 |
33 |
| VCDI |
0 |
0 |
0 |
6 |
710 |
9832 |
21262 |
24823 |
|
Date: 2025-06-14:
| 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 |
82908 |
15789 |
174 |
201 |
30 |
2 |
0 |
0 |
| OW |
98 |
4519 |
823 |
1266 |
200 |
3 |
0 |
0 |
| VODI |
1 |
979 |
588 |
4279 |
1817 |
94 |
9 |
0 |
| ODI |
0 |
40 |
43 |
1468 |
3957 |
1115 |
85 |
0 |
| CDI |
0 |
41 |
26 |
270 |
3607 |
8963 |
4841 |
44 |
| VCDI |
0 |
0 |
0 |
33 |
2722 |
11255 |
22219 |
20234 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
82913 |
16111 |
194 |
241 |
29 |
2 |
0 |
0 |
| OW |
91 |
4204 |
821 |
1295 |
212 |
6 |
0 |
0 |
| VODI |
2 |
963 |
562 |
4118 |
1653 |
89 |
11 |
0 |
| ODI |
1 |
58 |
48 |
1501 |
4006 |
1159 |
76 |
0 |
| CDI |
0 |
32 |
29 |
326 |
3668 |
8805 |
5310 |
127 |
| VCDI |
0 |
0 |
0 |
36 |
2765 |
11371 |
21757 |
20151 |
|
Date: 2025-06-16:
| 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 |
84856 |
16283 |
130 |
155 |
36 |
2 |
0 |
0 |
| OW |
101 |
4395 |
1428 |
1067 |
101 |
0 |
0 |
0 |
| VODI |
2 |
126 |
147 |
5314 |
1215 |
17 |
4 |
0 |
| ODI |
0 |
12 |
5 |
499 |
5193 |
514 |
19 |
0 |
| CDI |
0 |
0 |
0 |
47 |
2221 |
12511 |
809 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
3503 |
8977 |
23692 |
21362 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
84648 |
14790 |
155 |
167 |
43 |
2 |
0 |
0 |
| OW |
296 |
4515 |
768 |
1210 |
233 |
9 |
0 |
0 |
| VODI |
15 |
1354 |
626 |
3679 |
1636 |
171 |
8 |
0 |
| ODI |
0 |
120 |
111 |
1522 |
3445 |
1718 |
185 |
0 |
| CDI |
0 |
37 |
50 |
487 |
2922 |
8593 |
6727 |
189 |
| VCDI |
0 |
0 |
0 |
17 |
3990 |
11528 |
17604 |
21173 |
|
Date: 2025-06-18:
| 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 |
85879 |
15814 |
136 |
153 |
24 |
0 |
0 |
0 |
| OW |
337 |
4721 |
1080 |
1089 |
67 |
0 |
0 |
0 |
| VODI |
8 |
581 |
471 |
4768 |
1308 |
41 |
1 |
0 |
| ODI |
0 |
11 |
11 |
853 |
4495 |
511 |
24 |
0 |
| CDI |
0 |
0 |
0 |
70 |
4295 |
9003 |
1331 |
215 |
| VCDI |
0 |
0 |
0 |
0 |
368 |
12623 |
20172 |
24283 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
85630 |
14352 |
174 |
167 |
56 |
0 |
0 |
0 |
| OW |
519 |
4809 |
739 |
1266 |
165 |
13 |
0 |
0 |
| VODI |
75 |
1690 |
584 |
3349 |
1612 |
236 |
14 |
0 |
| ODI |
0 |
209 |
142 |
1679 |
3753 |
1126 |
161 |
0 |
| CDI |
0 |
67 |
56 |
454 |
3978 |
7633 |
5948 |
689 |
| VCDI |
0 |
0 |
3 |
18 |
993 |
13170 |
15405 |
23809 |
|
Date: 2025-06-20:
| 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 |
87751 |
14702 |
131 |
147 |
22 |
0 |
0 |
0 |
| OW |
286 |
5211 |
851 |
859 |
100 |
2 |
0 |
0 |
| VODI |
29 |
1077 |
816 |
4111 |
1049 |
82 |
9 |
0 |
| ODI |
2 |
20 |
58 |
1402 |
4049 |
711 |
48 |
1 |
| CDI |
0 |
1 |
4 |
281 |
4332 |
8189 |
2233 |
43 |
| VCDI |
0 |
0 |
0 |
3 |
1804 |
14416 |
23538 |
16373 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
87445 |
13029 |
158 |
150 |
76 |
1 |
0 |
0 |
| OW |
571 |
5525 |
681 |
1060 |
181 |
21 |
4 |
0 |
| VODI |
51 |
2046 |
711 |
3131 |
1379 |
235 |
22 |
0 |
| ODI |
1 |
319 |
231 |
1689 |
3630 |
1047 |
175 |
1 |
| CDI |
0 |
92 |
79 |
736 |
4052 |
7344 |
6073 |
845 |
| VCDI |
0 |
0 |
0 |
37 |
2038 |
14752 |
19554 |
15571 |
|
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