Validation of sea ice concentration - European sector
Bulletin date: 2025-07-24
Data source: OSI SAF N.H. multi-product 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 |
81755 |
5101 |
16 |
17 |
0 |
0 |
0 |
0 |
| OW |
409 |
1750 |
333 |
404 |
13 |
0 |
0 |
0 |
| VODI |
27 |
207 |
212 |
1526 |
237 |
1 |
0 |
0 |
| ODI |
0 |
0 |
0 |
417 |
1201 |
98 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
665 |
4833 |
1055 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
115 |
24 |
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 |
82860 |
4225 |
12 |
4 |
0 |
0 |
0 |
0 |
| OW |
324 |
1829 |
323 |
384 |
19 |
0 |
0 |
0 |
| VODI |
16 |
209 |
191 |
1469 |
247 |
4 |
0 |
0 |
| ODI |
0 |
0 |
3 |
539 |
960 |
114 |
1 |
0 |
| CDI |
0 |
0 |
0 |
2 |
693 |
4726 |
1141 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
115 |
6 |
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 |
83405 |
4773 |
34 |
39 |
0 |
0 |
0 |
0 |
| OW |
156 |
1283 |
392 |
658 |
6 |
1 |
0 |
0 |
| VODI |
0 |
19 |
38 |
1417 |
253 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
132 |
980 |
43 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
831 |
4400 |
177 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
918 |
460 |
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 |
83638 |
4485 |
11 |
27 |
0 |
0 |
0 |
0 |
| OW |
123 |
1465 |
305 |
485 |
9 |
0 |
0 |
0 |
| VODI |
0 |
35 |
134 |
1399 |
223 |
2 |
0 |
0 |
| ODI |
0 |
0 |
0 |
223 |
1040 |
143 |
7 |
0 |
| CDI |
0 |
0 |
0 |
6 |
929 |
4224 |
65 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
1241 |
197 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
83627 |
4621 |
19 |
29 |
0 |
0 |
0 |
0 |
| OW |
134 |
1320 |
302 |
487 |
13 |
0 |
0 |
0 |
| VODI |
0 |
44 |
128 |
1391 |
266 |
4 |
1 |
0 |
| ODI |
0 |
0 |
1 |
224 |
1028 |
294 |
8 |
0 |
| CDI |
0 |
0 |
0 |
9 |
894 |
4128 |
54 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
1184 |
206 |
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 |
83812 |
4605 |
14 |
21 |
0 |
0 |
0 |
0 |
| OW |
37 |
1352 |
278 |
422 |
25 |
1 |
0 |
0 |
| VODI |
0 |
72 |
141 |
1414 |
207 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
250 |
1144 |
212 |
9 |
0 |
| CDI |
0 |
0 |
0 |
6 |
1260 |
3793 |
53 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
1209 |
79 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
83807 |
4707 |
20 |
23 |
0 |
0 |
0 |
0 |
| OW |
42 |
1260 |
279 |
424 |
20 |
1 |
0 |
0 |
| VODI |
0 |
62 |
131 |
1424 |
259 |
0 |
0 |
0 |
| ODI |
0 |
0 |
3 |
233 |
1049 |
349 |
12 |
0 |
| CDI |
0 |
0 |
0 |
9 |
1308 |
3674 |
42 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
1191 |
87 |
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 |
84029 |
5194 |
27 |
18 |
0 |
0 |
0 |
0 |
| OW |
2 |
866 |
360 |
572 |
3 |
0 |
0 |
0 |
| VODI |
0 |
29 |
43 |
1329 |
133 |
1 |
0 |
0 |
| ODI |
0 |
0 |
0 |
65 |
2126 |
270 |
1 |
0 |
| CDI |
0 |
0 |
0 |
1 |
405 |
3848 |
80 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
7 |
508 |
499 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
84024 |
4672 |
12 |
19 |
0 |
0 |
0 |
0 |
| OW |
7 |
1270 |
255 |
320 |
13 |
0 |
0 |
0 |
| VODI |
0 |
144 |
147 |
1324 |
197 |
7 |
0 |
0 |
| ODI |
0 |
3 |
16 |
301 |
1229 |
726 |
23 |
0 |
| CDI |
0 |
0 |
0 |
21 |
1234 |
2987 |
110 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
907 |
447 |
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 |
84767 |
4483 |
39 |
45 |
0 |
0 |
0 |
0 |
| OW |
1 |
1064 |
305 |
409 |
3 |
0 |
0 |
0 |
| VODI |
0 |
60 |
107 |
1177 |
174 |
1 |
0 |
0 |
| ODI |
0 |
0 |
0 |
99 |
2260 |
197 |
0 |
0 |
| CDI |
0 |
0 |
0 |
1 |
778 |
3177 |
146 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
935 |
188 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
84767 |
3947 |
22 |
40 |
1 |
0 |
0 |
0 |
| OW |
1 |
1349 |
168 |
269 |
23 |
0 |
0 |
0 |
| VODI |
0 |
293 |
244 |
1092 |
238 |
11 |
4 |
0 |
| ODI |
0 |
18 |
17 |
304 |
1682 |
599 |
33 |
0 |
| CDI |
0 |
0 |
0 |
26 |
1270 |
2469 |
134 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
1231 |
163 |
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 |
85594 |
3643 |
33 |
87 |
0 |
0 |
0 |
0 |
| OW |
198 |
1069 |
201 |
396 |
0 |
0 |
0 |
0 |
| VODI |
36 |
151 |
144 |
1043 |
86 |
1 |
0 |
0 |
| ODI |
0 |
0 |
0 |
183 |
2114 |
169 |
0 |
0 |
| CDI |
0 |
0 |
0 |
7 |
956 |
2631 |
473 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
941 |
260 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
85490 |
3335 |
38 |
124 |
4 |
0 |
0 |
0 |
| OW |
274 |
1018 |
111 |
267 |
42 |
0 |
0 |
0 |
| VODI |
64 |
442 |
191 |
954 |
123 |
17 |
3 |
0 |
| ODI |
0 |
68 |
38 |
317 |
1481 |
916 |
130 |
0 |
| CDI |
0 |
0 |
0 |
54 |
1506 |
1733 |
258 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
1076 |
342 |
0 |
|
Generated by /metno/routine/sms/V3/SIconcentrationValidation5/SICmultiWebPage5sector.sh Fri Aug 8 02:50:58 UTC 2025 on arcval2