Validation of sea ice concentration - American sector
Bulletin date: 2025-07-03
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-06-27:
| 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 |
15980 |
3632 |
10 |
89 |
7 |
0 |
0 |
0 |
| OW |
107 |
1660 |
176 |
296 |
81 |
10 |
0 |
0 |
| VODI |
16 |
540 |
140 |
1222 |
680 |
72 |
1 |
0 |
| ODI |
3 |
21 |
18 |
1347 |
1651 |
386 |
7 |
0 |
| CDI |
0 |
36 |
3 |
250 |
1295 |
6906 |
34 |
0 |
| VCDI |
0 |
1 |
0 |
0 |
1150 |
15782 |
4456 |
3166 |
|
...date precedes bulletin
|
Date: 2025-06-29:
| 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 |
16514 |
3518 |
28 |
98 |
12 |
0 |
0 |
0 |
| OW |
147 |
1722 |
146 |
345 |
120 |
29 |
0 |
0 |
| VODI |
22 |
620 |
219 |
1677 |
576 |
92 |
0 |
0 |
| ODI |
9 |
68 |
39 |
1473 |
1007 |
519 |
0 |
0 |
| CDI |
0 |
35 |
4 |
200 |
1844 |
5836 |
45 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1476 |
16875 |
4176 |
1740 |
|
...date precedes bulletin
|
Date: 2025-07-01:
| 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 |
16879 |
4285 |
52 |
94 |
3 |
0 |
0 |
0 |
| OW |
137 |
1961 |
391 |
1108 |
93 |
2 |
0 |
0 |
| VODI |
18 |
181 |
116 |
1992 |
686 |
18 |
0 |
0 |
| ODI |
0 |
19 |
2 |
187 |
2167 |
236 |
0 |
0 |
| CDI |
0 |
2 |
0 |
11 |
3351 |
7688 |
80 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
882 |
11846 |
3654 |
3090 |
|
...date precedes bulletin
|
Date: 2025-07-03:
| 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 |
17115 |
4390 |
71 |
68 |
4 |
0 |
0 |
0 |
| OW |
179 |
2264 |
381 |
1427 |
87 |
1 |
0 |
0 |
| VODI |
41 |
165 |
54 |
1349 |
774 |
29 |
0 |
0 |
| ODI |
0 |
31 |
1 |
238 |
2384 |
200 |
0 |
0 |
| CDI |
0 |
1 |
0 |
19 |
3413 |
6525 |
11 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
649 |
12691 |
5232 |
1437 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17076 |
4394 |
70 |
84 |
4 |
0 |
0 |
0 |
| OW |
221 |
2226 |
383 |
1332 |
78 |
3 |
0 |
0 |
| VODI |
38 |
197 |
53 |
1398 |
744 |
30 |
0 |
0 |
| ODI |
0 |
31 |
1 |
270 |
2391 |
232 |
0 |
0 |
| CDI |
0 |
3 |
0 |
17 |
3418 |
6147 |
11 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
676 |
13034 |
5232 |
1437 |
|
Date: 2025-07-05:
| 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 |
17449 |
3445 |
479 |
825 |
106 |
4 |
0 |
0 |
| OW |
190 |
2547 |
308 |
1363 |
142 |
11 |
0 |
0 |
| VODI |
23 |
160 |
87 |
1057 |
546 |
82 |
0 |
0 |
| ODI |
0 |
33 |
9 |
326 |
2254 |
280 |
0 |
0 |
| CDI |
0 |
0 |
0 |
45 |
3487 |
4817 |
16 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
3194 |
13583 |
4093 |
270 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17428 |
3412 |
483 |
851 |
107 |
4 |
0 |
0 |
| OW |
207 |
2595 |
295 |
1250 |
137 |
18 |
0 |
0 |
| VODI |
27 |
143 |
96 |
1092 |
482 |
80 |
0 |
0 |
| ODI |
0 |
35 |
9 |
374 |
2336 |
289 |
0 |
0 |
| CDI |
0 |
0 |
0 |
49 |
3650 |
4595 |
5 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
3017 |
13791 |
4104 |
270 |
|
Date: 2025-07-07:
| 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 |
20187 |
4824 |
120 |
97 |
3 |
0 |
0 |
0 |
| OW |
229 |
1038 |
226 |
847 |
33 |
0 |
0 |
0 |
| VODI |
15 |
35 |
35 |
1263 |
519 |
7 |
0 |
0 |
| ODI |
0 |
2 |
0 |
66 |
4409 |
63 |
1 |
0 |
| CDI |
0 |
0 |
1 |
22 |
3639 |
13004 |
90 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
558 |
5497 |
4401 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
19786 |
3631 |
40 |
47 |
6 |
0 |
0 |
0 |
| OW |
608 |
1965 |
202 |
702 |
136 |
5 |
0 |
0 |
| VODI |
36 |
253 |
121 |
987 |
428 |
40 |
4 |
0 |
| ODI |
1 |
42 |
13 |
462 |
2317 |
139 |
10 |
0 |
| CDI |
0 |
8 |
5 |
82 |
4168 |
5158 |
74 |
0 |
| VCDI |
0 |
0 |
1 |
15 |
2106 |
13229 |
4404 |
0 |
|
Date: 2025-07-09:
| 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 |
20885 |
4523 |
68 |
62 |
10 |
0 |
0 |
0 |
| OW |
95 |
987 |
248 |
723 |
30 |
1 |
0 |
0 |
| VODI |
15 |
117 |
55 |
1211 |
609 |
26 |
0 |
0 |
| ODI |
0 |
5 |
1 |
92 |
3382 |
969 |
0 |
0 |
| CDI |
0 |
0 |
0 |
44 |
1897 |
16791 |
167 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
684 |
4414 |
3118 |
2 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20445 |
3613 |
18 |
27 |
13 |
0 |
0 |
0 |
| OW |
529 |
1633 |
171 |
660 |
82 |
7 |
0 |
0 |
| VODI |
18 |
361 |
166 |
928 |
434 |
45 |
0 |
0 |
| ODI |
3 |
23 |
16 |
388 |
2138 |
318 |
0 |
0 |
| CDI |
0 |
2 |
1 |
123 |
2254 |
10177 |
253 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
1691 |
11654 |
3032 |
2 |
|
Date: 2025-07-11:
| 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 |
21484 |
3944 |
15 |
81 |
0 |
0 |
0 |
0 |
| OW |
76 |
1264 |
193 |
600 |
40 |
0 |
0 |
0 |
| VODI |
6 |
229 |
45 |
938 |
847 |
18 |
0 |
0 |
| ODI |
0 |
13 |
7 |
121 |
3045 |
1133 |
0 |
0 |
| CDI |
0 |
1 |
1 |
79 |
4703 |
14898 |
975 |
0 |
| VCDI |
0 |
0 |
0 |
15 |
718 |
2321 |
3421 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
21102 |
3224 |
8 |
68 |
0 |
0 |
0 |
0 |
| OW |
449 |
1774 |
115 |
384 |
96 |
9 |
0 |
0 |
| VODI |
14 |
389 |
127 |
944 |
556 |
34 |
0 |
0 |
| ODI |
1 |
37 |
3 |
298 |
1939 |
461 |
0 |
0 |
| CDI |
0 |
27 |
8 |
121 |
5116 |
11927 |
611 |
0 |
| VCDI |
0 |
0 |
0 |
19 |
1646 |
5939 |
3785 |
0 |
|
Generated by /metno/routine/sms/V3/SIconcentrationValidation5/SICmultiWebPage5sector.sh Fri Jul 18 02:47:48 UTC 2025 on arcval2