Validation of sea ice concentration - American sector
Bulletin date: 2024-07-04
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-06-28:
| 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 |
2531 |
3720 |
75 |
32 |
3 |
1 |
0 |
0 |
| OW |
47 |
1594 |
274 |
280 |
36 |
8 |
7 |
0 |
| VODI |
12 |
594 |
287 |
782 |
455 |
71 |
15 |
0 |
| ODI |
0 |
157 |
168 |
832 |
1565 |
660 |
159 |
0 |
| CDI |
0 |
27 |
35 |
217 |
3422 |
3553 |
357 |
0 |
| VCDI |
0 |
17 |
11 |
89 |
1386 |
20845 |
1542 |
0 |
|
...date precedes bulletin
|
Date: 2024-06-30:
| 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 |
2597 |
3851 |
64 |
27 |
3 |
4 |
0 |
0 |
| OW |
40 |
1660 |
222 |
230 |
45 |
29 |
4 |
0 |
| VODI |
4 |
732 |
224 |
738 |
523 |
94 |
12 |
0 |
| ODI |
0 |
451 |
171 |
758 |
1511 |
757 |
18 |
0 |
| CDI |
0 |
53 |
59 |
259 |
2707 |
4106 |
241 |
0 |
| VCDI |
0 |
9 |
6 |
38 |
2184 |
20000 |
1435 |
0 |
|
...date precedes bulletin
|
Date: 2024-07-02:
| 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 |
2399 |
4750 |
99 |
43 |
4 |
1 |
0 |
0 |
| OW |
19 |
1945 |
318 |
316 |
46 |
11 |
0 |
0 |
| VODI |
1 |
495 |
371 |
1248 |
671 |
60 |
5 |
0 |
| ODI |
0 |
27 |
36 |
406 |
2309 |
1510 |
8 |
0 |
| CDI |
0 |
37 |
16 |
83 |
2654 |
8003 |
103 |
0 |
| VCDI |
0 |
11 |
5 |
45 |
2638 |
13598 |
1575 |
0 |
|
...date precedes bulletin
|
Date: 2024-07-04:
| 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 |
2557 |
4882 |
63 |
31 |
2 |
2 |
0 |
0 |
| OW |
6 |
2135 |
263 |
270 |
38 |
29 |
4 |
0 |
| VODI |
0 |
597 |
345 |
1152 |
736 |
190 |
18 |
0 |
| ODI |
0 |
56 |
61 |
454 |
3336 |
489 |
13 |
0 |
| CDI |
24 |
31 |
19 |
122 |
5465 |
6840 |
94 |
0 |
| VCDI |
9 |
4 |
5 |
42 |
575 |
11429 |
3478 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2557 |
5076 |
69 |
44 |
8 |
4 |
0 |
0 |
| OW |
5 |
1939 |
272 |
318 |
49 |
34 |
7 |
0 |
| VODI |
1 |
589 |
327 |
1103 |
702 |
213 |
15 |
0 |
| ODI |
0 |
65 |
63 |
433 |
3257 |
488 |
13 |
0 |
| CDI |
23 |
32 |
20 |
131 |
5582 |
6462 |
76 |
0 |
| VCDI |
10 |
4 |
5 |
42 |
554 |
11778 |
3496 |
0 |
|
Date: 2024-07-06:
| 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 |
3068 |
4599 |
54 |
18 |
5 |
2 |
1 |
0 |
| OW |
23 |
2343 |
219 |
279 |
87 |
27 |
0 |
0 |
| VODI |
0 |
622 |
336 |
1120 |
879 |
194 |
2 |
0 |
| ODI |
0 |
98 |
76 |
510 |
2909 |
1190 |
4 |
0 |
| CDI |
24 |
12 |
14 |
156 |
4596 |
7432 |
57 |
0 |
| VCDI |
9 |
2 |
5 |
50 |
936 |
13424 |
484 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
3060 |
4912 |
70 |
49 |
15 |
5 |
0 |
0 |
| OW |
31 |
2015 |
206 |
319 |
133 |
30 |
1 |
0 |
| VODI |
0 |
613 |
333 |
1044 |
781 |
260 |
2 |
0 |
| ODI |
0 |
122 |
77 |
526 |
2904 |
1093 |
4 |
0 |
| CDI |
23 |
12 |
13 |
142 |
4537 |
7048 |
57 |
0 |
| VCDI |
10 |
2 |
5 |
53 |
1042 |
13833 |
484 |
0 |
|
Date: 2024-07-08:
| 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 |
3785 |
5367 |
61 |
28 |
7 |
0 |
0 |
0 |
| OW |
23 |
1669 |
324 |
357 |
44 |
23 |
4 |
0 |
| VODI |
6 |
225 |
285 |
1301 |
549 |
80 |
7 |
0 |
| ODI |
7 |
24 |
24 |
400 |
5125 |
1081 |
10 |
0 |
| CDI |
17 |
5 |
6 |
50 |
2161 |
12652 |
221 |
0 |
| VCDI |
3 |
5 |
11 |
22 |
366 |
8697 |
834 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
3764 |
4706 |
58 |
58 |
23 |
16 |
1 |
0 |
| OW |
44 |
1807 |
193 |
371 |
180 |
45 |
8 |
0 |
| VODI |
0 |
636 |
360 |
930 |
757 |
351 |
22 |
0 |
| ODI |
0 |
113 |
70 |
562 |
3036 |
1001 |
43 |
0 |
| CDI |
23 |
28 |
19 |
190 |
3407 |
7943 |
96 |
0 |
| VCDI |
10 |
5 |
11 |
47 |
849 |
13177 |
906 |
0 |
|
Date: 2024-07-10:
| 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 |
4148 |
5303 |
57 |
58 |
19 |
0 |
0 |
0 |
| OW |
13 |
1606 |
338 |
368 |
79 |
11 |
4 |
0 |
| VODI |
7 |
297 |
289 |
1221 |
720 |
147 |
8 |
0 |
| ODI |
11 |
38 |
29 |
420 |
4287 |
2032 |
5 |
0 |
| CDI |
15 |
17 |
6 |
61 |
1435 |
14329 |
255 |
0 |
| VCDI |
0 |
7 |
7 |
27 |
217 |
7701 |
274 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
4138 |
4520 |
61 |
94 |
41 |
6 |
0 |
0 |
| OW |
23 |
1854 |
229 |
372 |
161 |
73 |
4 |
0 |
| VODI |
0 |
705 |
308 |
873 |
984 |
333 |
13 |
0 |
| ODI |
0 |
126 |
94 |
608 |
2882 |
1198 |
0 |
0 |
| CDI |
25 |
54 |
24 |
155 |
2452 |
8796 |
187 |
0 |
| VCDI |
8 |
9 |
10 |
53 |
237 |
13814 |
342 |
0 |
|
Date: 2024-07-12:
| 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 |
3705 |
6163 |
84 |
85 |
31 |
16 |
0 |
0 |
| OW |
11 |
1636 |
289 |
376 |
97 |
30 |
1 |
0 |
| VODI |
9 |
453 |
334 |
1183 |
889 |
148 |
2 |
0 |
| ODI |
8 |
48 |
33 |
511 |
3099 |
1871 |
0 |
0 |
| CDI |
15 |
20 |
11 |
55 |
1722 |
16608 |
23 |
0 |
| VCDI |
0 |
17 |
6 |
39 |
630 |
5579 |
29 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
3683 |
5215 |
54 |
48 |
15 |
4 |
0 |
0 |
| OW |
32 |
2049 |
201 |
363 |
183 |
81 |
1 |
0 |
| VODI |
0 |
805 |
327 |
822 |
999 |
429 |
2 |
0 |
| ODI |
4 |
185 |
138 |
785 |
2189 |
1274 |
0 |
0 |
| CDI |
23 |
61 |
24 |
170 |
1517 |
10959 |
10 |
0 |
| VCDI |
6 |
22 |
13 |
61 |
1565 |
11505 |
42 |
0 |
|
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