Validation of sea ice concentration - Full domain
Bulletin date: 2025-06-19
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-06-13:
| 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 |
82415 |
16121 |
205 |
221 |
16 |
3 |
0 |
0 |
| OW |
196 |
4344 |
900 |
1142 |
132 |
4 |
0 |
0 |
| VODI |
12 |
879 |
589 |
4454 |
1592 |
101 |
12 |
0 |
| ODI |
0 |
42 |
71 |
1333 |
4073 |
1087 |
83 |
0 |
| CDI |
0 |
28 |
14 |
273 |
3296 |
9885 |
4697 |
72 |
| VCDI |
0 |
0 |
0 |
12 |
1520 |
10248 |
20790 |
23881 |
|
...date precedes bulletin
|
Date: 2025-06-15:
| 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 |
84005 |
14836 |
152 |
123 |
26 |
0 |
2 |
0 |
| OW |
111 |
4758 |
848 |
1262 |
229 |
2 |
0 |
0 |
| VODI |
3 |
1171 |
605 |
4080 |
1812 |
119 |
5 |
0 |
| ODI |
0 |
88 |
105 |
1536 |
3623 |
1256 |
120 |
0 |
| CDI |
0 |
31 |
25 |
361 |
3165 |
9375 |
4839 |
62 |
| VCDI |
0 |
0 |
0 |
10 |
3619 |
12900 |
21652 |
17827 |
|
...date precedes bulletin
|
Date: 2025-06-17:
| 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 |
84956 |
16479 |
181 |
152 |
33 |
5 |
0 |
0 |
| OW |
136 |
4506 |
1206 |
1269 |
94 |
1 |
0 |
0 |
| VODI |
5 |
246 |
336 |
5036 |
1314 |
22 |
3 |
0 |
| ODI |
0 |
12 |
5 |
692 |
4596 |
534 |
23 |
0 |
| CDI |
0 |
0 |
0 |
96 |
3493 |
10228 |
1234 |
38 |
| VCDI |
0 |
0 |
0 |
0 |
2524 |
10329 |
22342 |
22617 |
|
...date precedes bulletin
|
Date: 2025-06-19:
| 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 |
86581 |
15511 |
121 |
145 |
22 |
0 |
0 |
0 |
| OW |
256 |
5038 |
949 |
1028 |
95 |
0 |
0 |
0 |
| VODI |
29 |
831 |
669 |
4361 |
1165 |
79 |
9 |
0 |
| ODI |
2 |
6 |
18 |
1176 |
3982 |
868 |
39 |
1 |
| CDI |
0 |
0 |
0 |
180 |
3904 |
8597 |
2039 |
112 |
| VCDI |
0 |
0 |
0 |
1 |
1791 |
12587 |
25128 |
17423 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
86491 |
16079 |
162 |
184 |
29 |
0 |
0 |
0 |
| OW |
343 |
4471 |
919 |
1070 |
107 |
5 |
0 |
0 |
| VODI |
32 |
822 |
648 |
4209 |
1142 |
71 |
8 |
0 |
| ODI |
2 |
14 |
28 |
1232 |
3837 |
711 |
44 |
1 |
| CDI |
0 |
0 |
0 |
193 |
3970 |
8731 |
2128 |
147 |
| VCDI |
0 |
0 |
0 |
3 |
1874 |
12613 |
25035 |
17388 |
|
Date: 2025-06-21:
| 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 |
87890 |
14710 |
93 |
120 |
54 |
0 |
0 |
0 |
| OW |
563 |
5110 |
748 |
904 |
107 |
5 |
0 |
0 |
| VODI |
28 |
1386 |
807 |
4002 |
877 |
79 |
9 |
0 |
| ODI |
2 |
44 |
68 |
1640 |
4151 |
528 |
34 |
0 |
| CDI |
0 |
0 |
3 |
334 |
4513 |
8215 |
2061 |
118 |
| VCDI |
0 |
0 |
0 |
6 |
3062 |
15799 |
18725 |
17948 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
87826 |
15124 |
133 |
161 |
74 |
0 |
0 |
0 |
| OW |
607 |
4736 |
705 |
967 |
98 |
6 |
0 |
0 |
| VODI |
48 |
1337 |
777 |
3721 |
924 |
86 |
9 |
0 |
| ODI |
2 |
53 |
102 |
1726 |
3763 |
544 |
51 |
0 |
| CDI |
0 |
0 |
2 |
425 |
4762 |
8218 |
1939 |
392 |
| VCDI |
0 |
0 |
0 |
6 |
3143 |
15772 |
18830 |
17674 |
|
Date: 2025-06-23:
| 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 |
88812 |
15209 |
214 |
257 |
50 |
1 |
0 |
0 |
| OW |
504 |
4609 |
739 |
1147 |
81 |
20 |
4 |
0 |
| VODI |
30 |
1361 |
636 |
3199 |
1029 |
99 |
23 |
0 |
| ODI |
4 |
67 |
97 |
1643 |
3675 |
674 |
71 |
1 |
| CDI |
0 |
1 |
30 |
728 |
5286 |
9914 |
1991 |
741 |
| VCDI |
0 |
0 |
0 |
18 |
1760 |
16965 |
17280 |
15773 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
88798 |
14796 |
179 |
212 |
38 |
0 |
0 |
0 |
| OW |
516 |
4932 |
700 |
1084 |
73 |
16 |
0 |
0 |
| VODI |
32 |
1463 |
707 |
3286 |
1104 |
97 |
22 |
0 |
| ODI |
4 |
53 |
112 |
1700 |
3730 |
784 |
104 |
1 |
| CDI |
0 |
3 |
18 |
691 |
5183 |
9835 |
1786 |
728 |
| VCDI |
0 |
0 |
0 |
19 |
1753 |
16941 |
17457 |
15786 |
|
Date: 2025-06-25:
| 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 |
90515 |
16543 |
185 |
196 |
23 |
0 |
0 |
0 |
| OW |
176 |
3989 |
1190 |
1091 |
80 |
15 |
0 |
0 |
| VODI |
9 |
414 |
405 |
4183 |
1343 |
105 |
7 |
0 |
| ODI |
4 |
6 |
8 |
992 |
5132 |
1072 |
35 |
0 |
| CDI |
0 |
3 |
1 |
229 |
3683 |
14163 |
2942 |
45 |
| VCDI |
0 |
0 |
0 |
0 |
4626 |
14459 |
20245 |
6629 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
90288 |
14098 |
186 |
245 |
21 |
0 |
0 |
0 |
| OW |
392 |
5100 |
806 |
1035 |
88 |
12 |
0 |
0 |
| VODI |
20 |
1652 |
622 |
3026 |
1278 |
110 |
35 |
0 |
| ODI |
4 |
92 |
143 |
1568 |
3783 |
849 |
149 |
0 |
| CDI |
0 |
13 |
32 |
792 |
4512 |
11680 |
6936 |
625 |
| VCDI |
0 |
0 |
0 |
25 |
5205 |
17163 |
16109 |
6049 |
|
Date: 2025-06-27:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
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