Validation of sea ice concentration - Full domain
Bulletin date: 2025-10-09
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-10-03:
| 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 |
112575 |
14297 |
342 |
322 |
18 |
2 |
0 |
0 |
| OW |
1905 |
1966 |
613 |
1022 |
337 |
32 |
0 |
0 |
| VODI |
1991 |
393 |
253 |
1089 |
1001 |
230 |
1 |
0 |
| ODI |
0 |
54 |
32 |
230 |
774 |
688 |
49 |
0 |
| CDI |
0 |
13 |
28 |
91 |
426 |
2521 |
632 |
0 |
| VCDI |
0 |
0 |
0 |
8 |
216 |
5952 |
19504 |
11203 |
|
...date precedes bulletin
|
Date: 2025-10-05:
| 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 |
110997 |
13827 |
368 |
407 |
70 |
0 |
0 |
0 |
| OW |
1855 |
1722 |
436 |
925 |
476 |
14 |
0 |
0 |
| VODI |
2057 |
292 |
203 |
1050 |
1628 |
410 |
15 |
0 |
| ODI |
0 |
65 |
45 |
281 |
987 |
781 |
128 |
0 |
| CDI |
0 |
17 |
27 |
121 |
541 |
1995 |
791 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
82 |
8841 |
28436 |
919 |
|
...date precedes bulletin
|
Date: 2025-10-07:
| 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 |
110080 |
15325 |
390 |
260 |
16 |
0 |
0 |
0 |
| OW |
1756 |
1523 |
383 |
725 |
152 |
0 |
0 |
0 |
| VODI |
2223 |
144 |
236 |
1052 |
939 |
19 |
0 |
0 |
| ODI |
0 |
13 |
30 |
320 |
1058 |
455 |
0 |
0 |
| CDI |
0 |
0 |
8 |
92 |
974 |
2899 |
392 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
96 |
10419 |
23182 |
5649 |
|
...date precedes bulletin
|
Date: 2025-10-09:
| 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 |
112284 |
13196 |
179 |
142 |
9 |
1 |
0 |
0 |
| OW |
1833 |
1493 |
359 |
671 |
212 |
13 |
0 |
0 |
| VODI |
2117 |
382 |
192 |
728 |
873 |
169 |
0 |
0 |
| ODI |
0 |
169 |
51 |
240 |
958 |
590 |
37 |
0 |
| CDI |
0 |
87 |
101 |
256 |
750 |
2183 |
845 |
0 |
| VCDI |
0 |
0 |
2 |
21 |
196 |
12401 |
23751 |
3319 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
112293 |
13269 |
213 |
179 |
8 |
1 |
0 |
0 |
| OW |
1828 |
1384 |
316 |
647 |
259 |
21 |
0 |
0 |
| VODI |
2113 |
411 |
194 |
678 |
843 |
196 |
0 |
0 |
| ODI |
0 |
161 |
50 |
265 |
926 |
698 |
47 |
0 |
| CDI |
0 |
102 |
109 |
266 |
769 |
2420 |
1093 |
0 |
| VCDI |
0 |
0 |
2 |
23 |
193 |
12021 |
23493 |
3319 |
|
Date: 2025-10-11:
| 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 |
111026 |
13056 |
250 |
262 |
37 |
0 |
0 |
0 |
| OW |
1761 |
1667 |
408 |
563 |
223 |
46 |
0 |
0 |
| VODI |
2271 |
364 |
275 |
822 |
814 |
233 |
7 |
0 |
| ODI |
0 |
134 |
48 |
312 |
733 |
696 |
106 |
0 |
| CDI |
0 |
183 |
56 |
226 |
822 |
2149 |
962 |
0 |
| VCDI |
0 |
6 |
7 |
20 |
134 |
11269 |
27438 |
1424 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
111051 |
13157 |
257 |
265 |
88 |
8 |
0 |
0 |
| OW |
1739 |
1540 |
405 |
606 |
206 |
43 |
1 |
0 |
| VODI |
2268 |
386 |
266 |
780 |
760 |
236 |
6 |
0 |
| ODI |
0 |
125 |
47 |
295 |
775 |
720 |
105 |
0 |
| CDI |
0 |
191 |
56 |
230 |
786 |
2298 |
996 |
0 |
| VCDI |
0 |
11 |
13 |
29 |
148 |
11088 |
27405 |
1424 |
|
Date: 2025-10-13:
| 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 |
109474 |
14177 |
191 |
159 |
22 |
0 |
0 |
0 |
| OW |
1711 |
2082 |
653 |
551 |
57 |
0 |
0 |
0 |
| VODI |
2304 |
151 |
163 |
1104 |
542 |
6 |
0 |
0 |
| ODI |
0 |
47 |
31 |
290 |
1270 |
230 |
4 |
0 |
| CDI |
0 |
0 |
1 |
46 |
827 |
3809 |
366 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
41 |
6562 |
28024 |
5914 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
109472 |
13570 |
288 |
333 |
51 |
0 |
0 |
0 |
| OW |
1712 |
1850 |
298 |
525 |
302 |
42 |
1 |
0 |
| VODI |
2305 |
662 |
273 |
640 |
668 |
235 |
24 |
0 |
| ODI |
0 |
165 |
94 |
337 |
691 |
669 |
167 |
0 |
| CDI |
0 |
205 |
77 |
264 |
769 |
2162 |
1092 |
0 |
| VCDI |
0 |
5 |
9 |
52 |
278 |
7499 |
27110 |
5914 |
|
Date: 2025-10-15:
| 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 |
108009 |
14471 |
317 |
308 |
19 |
0 |
0 |
0 |
| OW |
1724 |
1798 |
511 |
949 |
196 |
10 |
0 |
0 |
| VODI |
2218 |
280 |
183 |
827 |
850 |
102 |
1 |
0 |
| ODI |
0 |
41 |
95 |
338 |
857 |
442 |
27 |
0 |
| CDI |
0 |
1 |
29 |
359 |
913 |
2429 |
804 |
0 |
| VCDI |
0 |
1 |
6 |
31 |
254 |
7566 |
27387 |
6457 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
107939 |
13552 |
336 |
425 |
80 |
23 |
0 |
0 |
| OW |
1671 |
1970 |
303 |
663 |
298 |
68 |
8 |
0 |
| VODI |
2341 |
702 |
305 |
732 |
726 |
225 |
46 |
0 |
| ODI |
0 |
134 |
77 |
400 |
837 |
634 |
112 |
0 |
| CDI |
0 |
117 |
28 |
247 |
611 |
1750 |
1504 |
0 |
| VCDI |
0 |
117 |
92 |
345 |
537 |
7849 |
26549 |
6457 |
|
Date: 2025-10-17:
| 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 |
106521 |
14147 |
381 |
338 |
120 |
13 |
0 |
0 |
| OW |
1660 |
1823 |
449 |
976 |
367 |
54 |
0 |
0 |
| VODI |
2360 |
254 |
254 |
871 |
1128 |
368 |
0 |
0 |
| ODI |
0 |
73 |
44 |
245 |
800 |
760 |
93 |
0 |
| CDI |
0 |
42 |
41 |
257 |
715 |
2324 |
1169 |
0 |
| VCDI |
0 |
0 |
4 |
13 |
170 |
9709 |
24766 |
7501 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
106505 |
13148 |
446 |
613 |
310 |
105 |
0 |
0 |
| OW |
1668 |
1883 |
324 |
704 |
487 |
157 |
9 |
0 |
| VODI |
2368 |
769 |
218 |
671 |
894 |
462 |
120 |
0 |
| ODI |
0 |
193 |
61 |
269 |
664 |
793 |
293 |
0 |
| CDI |
0 |
135 |
51 |
154 |
465 |
1364 |
1693 |
13 |
| VCDI |
0 |
211 |
73 |
289 |
480 |
10347 |
23913 |
7488 |
|
Generated by /metno/routine/sms/V3/SIconcentrationValidation5/SICamsr2webPage5.sh Fri Oct 24 02:07:16 UTC 2025 on arcval2