Validation of sea ice concentration - Asian sector
Bulletin date: 2025-06-19
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-06-13:
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 |
403 |
2072 |
41 |
39 |
2 |
2 |
0 |
0 |
OW |
13 |
1097 |
299 |
298 |
32 |
1 |
0 |
0 |
VODI |
10 |
139 |
139 |
1293 |
452 |
26 |
7 |
0 |
ODI |
0 |
5 |
6 |
343 |
1603 |
424 |
43 |
0 |
CDI |
0 |
0 |
1 |
37 |
1067 |
4169 |
2473 |
34 |
VCDI |
0 |
0 |
0 |
0 |
371 |
859 |
5544 |
9752 |
|
...date precedes bulletin
|
Date: 2025-06-15:
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 |
366 |
2171 |
34 |
42 |
13 |
0 |
2 |
0 |
OW |
0 |
1143 |
267 |
285 |
32 |
0 |
0 |
0 |
VODI |
0 |
167 |
182 |
1276 |
496 |
42 |
5 |
0 |
ODI |
0 |
9 |
9 |
455 |
1502 |
431 |
100 |
0 |
CDI |
0 |
0 |
2 |
68 |
1156 |
3209 |
2358 |
20 |
VCDI |
0 |
0 |
0 |
0 |
420 |
1972 |
7316 |
7546 |
|
...date precedes bulletin
|
Date: 2025-06-17:
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 |
371 |
2706 |
47 |
55 |
19 |
2 |
0 |
0 |
OW |
0 |
957 |
378 |
328 |
6 |
0 |
0 |
0 |
VODI |
0 |
16 |
70 |
1619 |
399 |
3 |
2 |
0 |
ODI |
0 |
1 |
1 |
162 |
1990 |
149 |
13 |
0 |
CDI |
0 |
0 |
0 |
12 |
1262 |
3100 |
345 |
0 |
VCDI |
0 |
0 |
0 |
0 |
102 |
1810 |
8291 |
8880 |
|
...date precedes bulletin
|
Date: 2025-06-19:
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 |
398 |
2787 |
30 |
40 |
18 |
0 |
0 |
0 |
OW |
0 |
1239 |
262 |
306 |
11 |
0 |
0 |
0 |
VODI |
0 |
225 |
242 |
1413 |
385 |
8 |
2 |
0 |
ODI |
0 |
0 |
4 |
354 |
1588 |
226 |
5 |
0 |
CDI |
0 |
0 |
0 |
63 |
1666 |
3034 |
393 |
0 |
VCDI |
0 |
0 |
0 |
0 |
79 |
3212 |
8348 |
6758 |
|
|
observations |
|
Ice free |
Ice free near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI near MIZ |
VCDI |
m o d e l |
Ice free |
398 |
2962 |
39 |
53 |
17 |
0 |
0 |
0 |
OW |
0 |
1101 |
275 |
303 |
10 |
0 |
0 |
0 |
VODI |
0 |
188 |
223 |
1356 |
374 |
20 |
2 |
0 |
ODI |
0 |
0 |
1 |
407 |
1598 |
209 |
9 |
0 |
CDI |
0 |
0 |
0 |
57 |
1602 |
2931 |
301 |
0 |
VCDI |
0 |
0 |
0 |
0 |
146 |
3320 |
8436 |
6758 |
|
Date: 2025-06-21:
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 |
685 |
2517 |
28 |
37 |
18 |
0 |
0 |
0 |
OW |
12 |
1393 |
246 |
253 |
0 |
2 |
0 |
0 |
VODI |
0 |
371 |
308 |
1320 |
391 |
31 |
0 |
0 |
ODI |
0 |
6 |
17 |
465 |
1265 |
249 |
2 |
0 |
CDI |
0 |
0 |
3 |
97 |
1569 |
3517 |
979 |
87 |
VCDI |
0 |
0 |
0 |
0 |
196 |
2901 |
6234 |
7897 |
|
|
observations |
|
Ice free |
Ice free near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI near MIZ |
VCDI |
m o d e l |
Ice free |
697 |
2645 |
33 |
46 |
18 |
0 |
0 |
0 |
OW |
0 |
1320 |
236 |
247 |
4 |
3 |
0 |
0 |
VODI |
0 |
312 |
299 |
1229 |
390 |
38 |
1 |
0 |
ODI |
0 |
10 |
33 |
542 |
1292 |
266 |
19 |
0 |
CDI |
0 |
0 |
1 |
108 |
1476 |
3211 |
800 |
339 |
VCDI |
0 |
0 |
0 |
0 |
259 |
3182 |
6395 |
7645 |
|
Date: 2025-06-23:
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 |
833 |
2794 |
60 |
62 |
24 |
0 |
0 |
0 |
OW |
0 |
1194 |
273 |
328 |
10 |
6 |
0 |
0 |
VODI |
0 |
368 |
243 |
1200 |
358 |
39 |
6 |
0 |
ODI |
0 |
6 |
24 |
551 |
1148 |
271 |
25 |
0 |
CDI |
0 |
0 |
0 |
143 |
2389 |
3533 |
1302 |
380 |
VCDI |
0 |
0 |
0 |
0 |
711 |
3195 |
7500 |
4120 |
|
|
observations |
|
Ice free |
Ice free near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI near MIZ |
VCDI |
m o d e l |
Ice free |
833 |
2650 |
43 |
49 |
21 |
0 |
0 |
0 |
OW |
0 |
1305 |
271 |
289 |
8 |
4 |
0 |
0 |
VODI |
0 |
403 |
259 |
1247 |
353 |
32 |
5 |
0 |
ODI |
0 |
4 |
27 |
557 |
1233 |
325 |
32 |
0 |
CDI |
0 |
0 |
0 |
140 |
2318 |
3612 |
1140 |
395 |
VCDI |
0 |
0 |
0 |
2 |
707 |
3071 |
7656 |
4105 |
|
Date: 2025-06-25:
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 |
944 |
3504 |
90 |
74 |
17 |
0 |
0 |
0 |
OW |
0 |
712 |
494 |
467 |
20 |
3 |
0 |
0 |
VODI |
0 |
23 |
58 |
1439 |
514 |
43 |
5 |
0 |
ODI |
0 |
0 |
0 |
206 |
1436 |
486 |
18 |
0 |
CDI |
0 |
0 |
0 |
17 |
1309 |
6650 |
2186 |
45 |
VCDI |
0 |
0 |
0 |
0 |
408 |
1252 |
8041 |
2635 |
|
|
observations |
|
Ice free |
Ice free near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI near MIZ |
VCDI |
m o d e l |
Ice free |
944 |
2679 |
78 |
68 |
18 |
0 |
0 |
0 |
OW |
0 |
1202 |
321 |
408 |
20 |
0 |
0 |
0 |
VODI |
0 |
357 |
198 |
1128 |
501 |
32 |
9 |
0 |
ODI |
0 |
1 |
45 |
390 |
1053 |
484 |
40 |
0 |
CDI |
0 |
0 |
0 |
209 |
1305 |
5989 |
4883 |
531 |
VCDI |
0 |
0 |
0 |
0 |
807 |
1929 |
5318 |
2149 |
|
Date: 2025-06-27:
Best estimate |
Forecast |
...observations not yet available
|
...observations not yet available
|
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