Validation of sea ice concentration - Full domain
Bulletin date: 2025-07-24
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-07-18:
| 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 |
89484 |
15599 |
109 |
69 |
6 |
5 |
0 |
0 |
| OW |
1712 |
5156 |
1079 |
1034 |
114 |
19 |
0 |
0 |
| VODI |
2500 |
876 |
924 |
3692 |
1687 |
73 |
0 |
0 |
| ODI |
0 |
60 |
94 |
1118 |
7171 |
1781 |
19 |
0 |
| CDI |
0 |
26 |
16 |
132 |
8759 |
30463 |
2925 |
0 |
| VCDI |
0 |
0 |
0 |
30 |
500 |
2079 |
1499 |
0 |
|
...date precedes bulletin
|
Date: 2025-07-20:
| 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 |
90789 |
15096 |
103 |
36 |
5 |
0 |
0 |
0 |
| OW |
1734 |
5624 |
1100 |
1000 |
119 |
10 |
0 |
0 |
| VODI |
2463 |
1268 |
924 |
3420 |
2073 |
133 |
0 |
0 |
| ODI |
0 |
148 |
178 |
1282 |
5850 |
1304 |
28 |
0 |
| CDI |
0 |
31 |
25 |
132 |
7711 |
31761 |
2927 |
0 |
| VCDI |
0 |
3 |
3 |
85 |
418 |
1770 |
1257 |
0 |
|
...date precedes bulletin
|
Date: 2025-07-22:
| 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 |
93163 |
15923 |
210 |
82 |
11 |
0 |
0 |
0 |
| OW |
1748 |
5077 |
1627 |
1312 |
79 |
1 |
0 |
0 |
| VODI |
2344 |
156 |
448 |
4467 |
1820 |
23 |
0 |
0 |
| ODI |
0 |
17 |
9 |
498 |
10631 |
1208 |
1 |
0 |
| CDI |
0 |
32 |
20 |
113 |
5983 |
27287 |
1314 |
0 |
| VCDI |
0 |
0 |
2 |
33 |
300 |
3951 |
920 |
0 |
|
...date precedes bulletin
|
Date: 2025-07-24:
| 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 |
95022 |
14834 |
194 |
51 |
8 |
0 |
0 |
0 |
| OW |
1864 |
5251 |
1320 |
1251 |
105 |
1 |
0 |
0 |
| VODI |
2307 |
472 |
651 |
4403 |
1962 |
52 |
1 |
0 |
| ODI |
0 |
21 |
16 |
641 |
8331 |
2623 |
19 |
0 |
| CDI |
0 |
50 |
38 |
102 |
7472 |
24985 |
598 |
0 |
| VCDI |
0 |
4 |
11 |
65 |
590 |
4467 |
1028 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
95014 |
15204 |
226 |
75 |
9 |
0 |
0 |
0 |
| OW |
1867 |
4810 |
1276 |
1256 |
125 |
1 |
0 |
0 |
| VODI |
2312 |
535 |
661 |
4323 |
1910 |
52 |
3 |
0 |
| ODI |
0 |
29 |
16 |
691 |
8733 |
2954 |
26 |
0 |
| CDI |
0 |
50 |
41 |
114 |
7164 |
24307 |
571 |
0 |
| VCDI |
0 |
4 |
10 |
54 |
527 |
4814 |
1046 |
0 |
|
Date: 2025-07-26:
| 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 |
96900 |
14313 |
141 |
62 |
6 |
0 |
0 |
0 |
| OW |
2120 |
5029 |
1118 |
1324 |
99 |
3 |
0 |
0 |
| VODI |
2277 |
824 |
707 |
4113 |
2129 |
50 |
0 |
0 |
| ODI |
0 |
46 |
57 |
785 |
7894 |
1838 |
28 |
0 |
| CDI |
0 |
76 |
38 |
96 |
8981 |
22606 |
1273 |
0 |
| VCDI |
0 |
14 |
17 |
92 |
711 |
4416 |
627 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
97011 |
14559 |
213 |
91 |
8 |
0 |
0 |
0 |
| OW |
2006 |
4729 |
1050 |
1313 |
118 |
3 |
0 |
0 |
| VODI |
2280 |
870 |
702 |
4012 |
1975 |
43 |
1 |
0 |
| ODI |
0 |
53 |
55 |
851 |
8101 |
2658 |
40 |
0 |
| CDI |
0 |
77 |
44 |
129 |
8862 |
20825 |
1290 |
0 |
| VCDI |
0 |
14 |
14 |
76 |
756 |
5384 |
597 |
0 |
|
Date: 2025-07-28:
| 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 |
96331 |
18290 |
273 |
85 |
4 |
0 |
0 |
0 |
| OW |
1959 |
4022 |
1665 |
1179 |
40 |
2 |
0 |
0 |
| VODI |
2017 |
88 |
274 |
4741 |
1481 |
8 |
0 |
0 |
| ODI |
0 |
37 |
20 |
376 |
12832 |
999 |
1 |
0 |
| CDI |
0 |
36 |
14 |
101 |
4239 |
25413 |
429 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
92 |
1248 |
2513 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
96166 |
16198 |
263 |
143 |
12 |
0 |
0 |
0 |
| OW |
1896 |
5031 |
993 |
1208 |
132 |
21 |
0 |
0 |
| VODI |
2245 |
1000 |
863 |
3903 |
1790 |
126 |
4 |
0 |
| ODI |
0 |
92 |
68 |
1003 |
7437 |
3640 |
66 |
0 |
| CDI |
0 |
107 |
33 |
109 |
7982 |
17698 |
1538 |
0 |
| VCDI |
0 |
45 |
26 |
117 |
1335 |
6185 |
1335 |
0 |
|
Date: 2025-07-30:
| 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 |
99180 |
15878 |
197 |
59 |
5 |
0 |
0 |
0 |
| OW |
1980 |
4234 |
1238 |
1214 |
47 |
3 |
0 |
0 |
| VODI |
1984 |
252 |
531 |
4821 |
1828 |
19 |
0 |
0 |
| ODI |
0 |
38 |
17 |
693 |
10309 |
3934 |
1 |
0 |
| CDI |
0 |
40 |
32 |
107 |
4518 |
22895 |
271 |
0 |
| VCDI |
0 |
0 |
1 |
7 |
62 |
3877 |
538 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
99045 |
13669 |
198 |
159 |
14 |
0 |
0 |
0 |
| OW |
1878 |
5313 |
797 |
1123 |
165 |
11 |
0 |
0 |
| VODI |
2220 |
1190 |
869 |
4065 |
1705 |
204 |
1 |
0 |
| ODI |
1 |
94 |
88 |
1340 |
6988 |
5567 |
64 |
0 |
| CDI |
0 |
109 |
26 |
102 |
6752 |
17394 |
228 |
0 |
| VCDI |
0 |
67 |
38 |
112 |
1145 |
7552 |
517 |
0 |
|
Date: 2025-08-01:
| 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 |
99390 |
15621 |
174 |
64 |
5 |
0 |
0 |
0 |
| OW |
2000 |
4671 |
1164 |
1045 |
66 |
0 |
0 |
0 |
| VODI |
1950 |
643 |
898 |
5060 |
1490 |
23 |
1 |
0 |
| ODI |
0 |
59 |
45 |
998 |
8801 |
6939 |
185 |
0 |
| CDI |
0 |
65 |
37 |
137 |
5011 |
16176 |
3348 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
56 |
2363 |
2323 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
99339 |
13702 |
243 |
216 |
40 |
1 |
0 |
0 |
| OW |
1950 |
5391 |
799 |
1090 |
222 |
11 |
0 |
0 |
| VODI |
2051 |
1583 |
1077 |
3771 |
1358 |
180 |
5 |
0 |
| ODI |
0 |
161 |
122 |
1936 |
6131 |
6504 |
449 |
0 |
| CDI |
0 |
171 |
52 |
242 |
7151 |
13861 |
4114 |
0 |
| VCDI |
0 |
51 |
25 |
51 |
527 |
4944 |
1289 |
0 |
|
Generated by /metno/routine/sms/V3/SIconcentrationValidation5/SICamsr2webPage5.sh Fri Aug 8 02:19:14 UTC 2025 on arcval2