Validation of sea ice concentration - American sector
Bulletin date: 2025-06-05
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-05-30:
| 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 |
0 |
331 |
21 |
10 |
1 |
0 |
0 |
0 |
| OW |
0 |
726 |
108 |
130 |
32 |
6 |
0 |
0 |
| VODI |
0 |
407 |
122 |
323 |
262 |
77 |
10 |
0 |
| ODI |
0 |
97 |
70 |
205 |
454 |
256 |
71 |
0 |
| CDI |
0 |
54 |
45 |
252 |
1005 |
2810 |
1725 |
1 |
| VCDI |
0 |
52 |
44 |
219 |
516 |
7339 |
21408 |
6677 |
|
...date precedes bulletin
|
Date: 2025-06-01:
| 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 |
0 |
380 |
14 |
7 |
3 |
0 |
0 |
0 |
| OW |
0 |
804 |
102 |
160 |
48 |
5 |
0 |
0 |
| VODI |
0 |
402 |
112 |
349 |
297 |
101 |
16 |
0 |
| ODI |
0 |
125 |
79 |
250 |
499 |
291 |
73 |
0 |
| CDI |
0 |
79 |
55 |
318 |
855 |
2879 |
3439 |
0 |
| VCDI |
0 |
12 |
15 |
85 |
485 |
4245 |
20485 |
8797 |
|
...date precedes bulletin
|
Date: 2025-06-03:
| 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 |
0 |
631 |
18 |
19 |
10 |
0 |
0 |
0 |
| OW |
0 |
908 |
117 |
144 |
41 |
8 |
0 |
0 |
| VODI |
0 |
311 |
181 |
555 |
378 |
64 |
2 |
0 |
| ODI |
0 |
51 |
50 |
397 |
757 |
370 |
59 |
0 |
| CDI |
0 |
69 |
43 |
226 |
797 |
3695 |
772 |
0 |
| VCDI |
0 |
17 |
17 |
67 |
507 |
4815 |
18363 |
11407 |
|
...date precedes bulletin
|
Date: 2025-06-05:
| 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 |
0 |
618 |
12 |
10 |
0 |
0 |
0 |
0 |
| OW |
0 |
954 |
155 |
188 |
23 |
6 |
0 |
0 |
| VODI |
0 |
339 |
183 |
671 |
423 |
73 |
1 |
0 |
| ODI |
0 |
69 |
81 |
456 |
714 |
384 |
30 |
0 |
| CDI |
0 |
72 |
41 |
267 |
1547 |
4061 |
1184 |
0 |
| VCDI |
0 |
11 |
9 |
46 |
406 |
3602 |
18891 |
10339 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
611 |
16 |
16 |
0 |
0 |
0 |
0 |
| OW |
0 |
945 |
139 |
153 |
29 |
4 |
0 |
0 |
| VODI |
0 |
354 |
215 |
702 |
409 |
80 |
1 |
0 |
| ODI |
0 |
63 |
57 |
418 |
715 |
364 |
28 |
0 |
| CDI |
0 |
72 |
43 |
297 |
1528 |
3923 |
1295 |
1 |
| VCDI |
0 |
18 |
11 |
52 |
432 |
3755 |
18782 |
10338 |
|
Date: 2025-06-07:
| 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 |
0 |
783 |
16 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
997 |
173 |
246 |
40 |
1 |
0 |
0 |
| VODI |
0 |
346 |
173 |
736 |
434 |
53 |
2 |
0 |
| ODI |
0 |
80 |
93 |
481 |
760 |
278 |
32 |
0 |
| CDI |
0 |
67 |
39 |
236 |
1302 |
3777 |
2245 |
0 |
| VCDI |
0 |
23 |
16 |
43 |
259 |
2431 |
16649 |
13053 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
750 |
24 |
6 |
1 |
0 |
0 |
0 |
| OW |
0 |
989 |
156 |
210 |
42 |
2 |
0 |
0 |
| VODI |
0 |
389 |
187 |
762 |
407 |
56 |
2 |
0 |
| ODI |
0 |
70 |
87 |
440 |
780 |
276 |
36 |
0 |
| CDI |
0 |
67 |
38 |
284 |
1270 |
3658 |
2274 |
0 |
| VCDI |
0 |
31 |
18 |
42 |
295 |
2548 |
16616 |
13053 |
|
Date: 2025-06-09:
| 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 |
0 |
1122 |
39 |
10 |
1 |
0 |
0 |
0 |
| OW |
0 |
946 |
204 |
237 |
18 |
1 |
0 |
0 |
| VODI |
0 |
372 |
224 |
1060 |
495 |
19 |
1 |
0 |
| ODI |
0 |
116 |
44 |
491 |
1424 |
420 |
12 |
0 |
| CDI |
0 |
72 |
17 |
212 |
1219 |
3767 |
408 |
0 |
| VCDI |
0 |
0 |
6 |
20 |
101 |
3273 |
20099 |
9416 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
793 |
27 |
8 |
1 |
0 |
0 |
0 |
| OW |
0 |
1004 |
182 |
306 |
63 |
2 |
0 |
0 |
| VODI |
0 |
460 |
187 |
683 |
516 |
58 |
6 |
0 |
| ODI |
0 |
164 |
64 |
558 |
680 |
346 |
45 |
0 |
| CDI |
0 |
186 |
59 |
415 |
1818 |
3733 |
1411 |
0 |
| VCDI |
0 |
21 |
15 |
60 |
180 |
3341 |
19058 |
9416 |
|
Date: 2025-06-11:
| 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 |
0 |
1244 |
30 |
13 |
1 |
0 |
0 |
0 |
| OW |
0 |
1149 |
207 |
263 |
29 |
0 |
0 |
0 |
| VODI |
0 |
505 |
268 |
948 |
537 |
50 |
2 |
0 |
| ODI |
0 |
81 |
27 |
300 |
1051 |
941 |
12 |
0 |
| CDI |
0 |
77 |
43 |
181 |
814 |
3955 |
864 |
1 |
| VCDI |
0 |
0 |
0 |
9 |
391 |
5902 |
18774 |
7197 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
904 |
33 |
13 |
4 |
0 |
0 |
0 |
| OW |
0 |
1112 |
208 |
362 |
70 |
3 |
0 |
0 |
| VODI |
0 |
596 |
154 |
564 |
496 |
127 |
4 |
0 |
| ODI |
0 |
232 |
116 |
425 |
514 |
487 |
38 |
0 |
| CDI |
0 |
179 |
50 |
288 |
1170 |
4569 |
1745 |
2 |
| VCDI |
0 |
33 |
14 |
62 |
569 |
5662 |
17865 |
7196 |
|
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 |
0 |
1527 |
55 |
24 |
3 |
0 |
0 |
0 |
| OW |
0 |
1196 |
252 |
321 |
49 |
3 |
0 |
0 |
| VODI |
0 |
597 |
281 |
902 |
521 |
71 |
4 |
0 |
| ODI |
0 |
106 |
75 |
353 |
962 |
512 |
111 |
0 |
| CDI |
0 |
133 |
41 |
190 |
1101 |
3738 |
990 |
15 |
| VCDI |
0 |
3 |
6 |
32 |
1375 |
8654 |
13337 |
8326 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
1155 |
46 |
41 |
12 |
0 |
0 |
0 |
| OW |
0 |
1159 |
261 |
428 |
85 |
1 |
0 |
0 |
| VODI |
0 |
653 |
171 |
558 |
432 |
85 |
3 |
0 |
| ODI |
0 |
314 |
136 |
355 |
521 |
320 |
94 |
0 |
| CDI |
0 |
158 |
81 |
380 |
1549 |
4960 |
1767 |
0 |
| VCDI |
0 |
123 |
15 |
60 |
1412 |
7612 |
12578 |
8341 |
|
Generated by /metno/routine/sms/V3/SIconcentrationValidation5/SICamsr2webPage5sector.sh Fri Jun 20 02:12:18 UTC 2025 on arcval2