Validation of sea ice concentration - Asian sector
Bulletin date: 2025-11-20
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-11-14:
| 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 |
1678 |
1644 |
39 |
18 |
0 |
0 |
0 |
0 |
| OW |
192 |
713 |
35 |
61 |
43 |
3 |
0 |
0 |
| VODI |
46 |
1034 |
100 |
141 |
237 |
59 |
0 |
0 |
| ODI |
0 |
306 |
66 |
193 |
235 |
195 |
2 |
0 |
| CDI |
0 |
11 |
16 |
51 |
240 |
397 |
32 |
11 |
| VCDI |
0 |
1 |
7 |
22 |
144 |
2262 |
7449 |
14399 |
|
...date precedes bulletin
|
Date: 2025-11-16:
| 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 |
2346 |
1800 |
13 |
12 |
2 |
0 |
0 |
0 |
| OW |
202 |
618 |
45 |
81 |
105 |
0 |
0 |
0 |
| VODI |
165 |
466 |
35 |
34 |
196 |
83 |
0 |
0 |
| ODI |
0 |
111 |
62 |
110 |
177 |
158 |
0 |
0 |
| CDI |
0 |
23 |
13 |
155 |
392 |
336 |
6 |
11 |
| VCDI |
0 |
17 |
20 |
57 |
277 |
3976 |
9356 |
10622 |
|
...date precedes bulletin
|
Date: 2025-11-18:
| 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 |
1527 |
2976 |
24 |
13 |
0 |
0 |
0 |
0 |
| OW |
156 |
433 |
94 |
86 |
2 |
0 |
0 |
0 |
| VODI |
1 |
162 |
39 |
151 |
99 |
1 |
0 |
0 |
| ODI |
0 |
100 |
31 |
70 |
196 |
18 |
6 |
0 |
| CDI |
0 |
21 |
11 |
68 |
339 |
683 |
133 |
0 |
| VCDI |
0 |
0 |
1 |
30 |
349 |
3848 |
10925 |
9489 |
|
...date precedes bulletin
|
Date: 2025-11-20:
| 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 |
963 |
2750 |
32 |
25 |
0 |
0 |
0 |
0 |
| OW |
111 |
596 |
65 |
58 |
11 |
0 |
0 |
0 |
| VODI |
0 |
268 |
66 |
164 |
89 |
11 |
0 |
0 |
| ODI |
0 |
66 |
26 |
98 |
213 |
98 |
0 |
0 |
| CDI |
0 |
27 |
19 |
51 |
191 |
522 |
131 |
1 |
| VCDI |
0 |
43 |
13 |
26 |
99 |
2571 |
10239 |
12439 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
998 |
2764 |
39 |
30 |
0 |
0 |
0 |
0 |
| OW |
74 |
578 |
58 |
62 |
12 |
0 |
0 |
0 |
| VODI |
2 |
269 |
66 |
167 |
100 |
14 |
0 |
0 |
| ODI |
0 |
68 |
28 |
86 |
222 |
85 |
0 |
0 |
| CDI |
0 |
24 |
17 |
51 |
173 |
547 |
146 |
0 |
| VCDI |
0 |
47 |
13 |
26 |
96 |
2556 |
10224 |
12440 |
|
Date: 2025-11-22:
| 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 |
658 |
2312 |
27 |
24 |
6 |
0 |
0 |
0 |
| OW |
2 |
395 |
40 |
52 |
4 |
0 |
0 |
0 |
| VODI |
0 |
726 |
138 |
243 |
118 |
8 |
0 |
0 |
| ODI |
0 |
30 |
31 |
134 |
200 |
88 |
1 |
0 |
| CDI |
0 |
9 |
7 |
68 |
210 |
553 |
91 |
8 |
| VCDI |
0 |
36 |
31 |
71 |
141 |
1755 |
11172 |
12693 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
658 |
2373 |
30 |
24 |
6 |
0 |
0 |
0 |
| OW |
2 |
354 |
37 |
58 |
5 |
0 |
0 |
0 |
| VODI |
0 |
699 |
138 |
236 |
131 |
12 |
0 |
0 |
| ODI |
0 |
34 |
32 |
136 |
200 |
111 |
1 |
0 |
| CDI |
0 |
13 |
8 |
69 |
202 |
517 |
75 |
7 |
| VCDI |
0 |
35 |
29 |
69 |
135 |
1764 |
11188 |
12694 |
|
Date: 2025-11-24:
| 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 |
364 |
2411 |
38 |
30 |
1 |
0 |
0 |
0 |
| OW |
1 |
734 |
100 |
44 |
6 |
0 |
0 |
0 |
| VODI |
0 |
211 |
177 |
470 |
75 |
2 |
0 |
0 |
| ODI |
0 |
4 |
7 |
135 |
199 |
15 |
0 |
0 |
| CDI |
0 |
6 |
9 |
40 |
322 |
475 |
31 |
13 |
| VCDI |
0 |
8 |
11 |
18 |
84 |
1430 |
12620 |
11991 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
364 |
2383 |
54 |
49 |
5 |
0 |
0 |
0 |
| OW |
1 |
261 |
39 |
40 |
15 |
0 |
0 |
0 |
| VODI |
0 |
589 |
141 |
264 |
92 |
3 |
0 |
0 |
| ODI |
0 |
113 |
71 |
274 |
204 |
44 |
0 |
0 |
| CDI |
0 |
4 |
15 |
59 |
292 |
390 |
44 |
15 |
| VCDI |
0 |
24 |
22 |
51 |
79 |
1485 |
12607 |
11989 |
|
Date: 2025-11-26:
| 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 |
55 |
2161 |
33 |
13 |
0 |
0 |
0 |
0 |
| OW |
0 |
612 |
78 |
81 |
3 |
0 |
0 |
0 |
| VODI |
0 |
493 |
163 |
357 |
148 |
4 |
0 |
0 |
| ODI |
0 |
44 |
50 |
234 |
260 |
44 |
0 |
0 |
| CDI |
0 |
5 |
11 |
63 |
230 |
364 |
61 |
0 |
| VCDI |
0 |
0 |
0 |
16 |
126 |
1423 |
11532 |
13418 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
55 |
2359 |
55 |
56 |
7 |
0 |
0 |
0 |
| OW |
0 |
318 |
61 |
79 |
22 |
6 |
0 |
0 |
| VODI |
0 |
397 |
86 |
124 |
94 |
15 |
0 |
0 |
| ODI |
0 |
226 |
96 |
360 |
233 |
49 |
0 |
0 |
| CDI |
0 |
10 |
28 |
103 |
261 |
325 |
43 |
1 |
| VCDI |
0 |
5 |
9 |
42 |
150 |
1440 |
11550 |
13417 |
|
Date: 2025-11-28:
| 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 |
147 |
2011 |
12 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
759 |
64 |
21 |
0 |
0 |
0 |
0 |
| VODI |
0 |
637 |
148 |
194 |
71 |
7 |
0 |
0 |
| ODI |
0 |
97 |
89 |
232 |
207 |
29 |
0 |
0 |
| CDI |
0 |
11 |
14 |
68 |
251 |
163 |
13 |
5 |
| VCDI |
0 |
2 |
8 |
53 |
265 |
1751 |
10152 |
14600 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
147 |
2425 |
49 |
49 |
13 |
4 |
0 |
0 |
| OW |
0 |
422 |
47 |
48 |
35 |
12 |
0 |
0 |
| VODI |
0 |
404 |
91 |
122 |
56 |
14 |
0 |
0 |
| ODI |
0 |
215 |
103 |
185 |
197 |
45 |
2 |
0 |
| CDI |
0 |
46 |
32 |
90 |
202 |
256 |
56 |
15 |
| VCDI |
0 |
5 |
13 |
75 |
291 |
1619 |
10107 |
14590 |
|
Generated by /metno/routine/sms/V3/SIconcentrationValidation5/SICamsr2webPage5sector.sh Fri Dec 5 02:04:09 UTC 2025 on arcval2