Validation of sea ice concentration - American sector
Bulletin date: 2024-10-03
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-09-27:
| 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 |
36209 |
5860 |
68 |
84 |
20 |
0 |
0 |
0 |
| OW |
50 |
567 |
229 |
361 |
83 |
0 |
0 |
0 |
| VODI |
0 |
64 |
83 |
702 |
445 |
15 |
0 |
0 |
| ODI |
0 |
17 |
1 |
106 |
834 |
258 |
0 |
0 |
| CDI |
0 |
14 |
1 |
37 |
419 |
2522 |
73 |
0 |
| VCDI |
0 |
11 |
0 |
6 |
12 |
3967 |
4943 |
3170 |
|
...date precedes bulletin
|
Date: 2024-09-29:
| 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 |
35758 |
5909 |
90 |
111 |
29 |
0 |
0 |
0 |
| OW |
54 |
530 |
167 |
613 |
104 |
18 |
0 |
0 |
| VODI |
0 |
96 |
72 |
461 |
582 |
147 |
0 |
0 |
| ODI |
0 |
50 |
3 |
139 |
606 |
515 |
5 |
0 |
| CDI |
0 |
15 |
5 |
39 |
264 |
2110 |
392 |
0 |
| VCDI |
0 |
14 |
0 |
16 |
86 |
2724 |
7214 |
2293 |
|
...date precedes bulletin
|
Date: 2024-10-01:
| 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 |
35749 |
6064 |
43 |
107 |
5 |
0 |
0 |
0 |
| OW |
10 |
541 |
250 |
219 |
91 |
2 |
0 |
0 |
| VODI |
0 |
8 |
46 |
729 |
238 |
43 |
0 |
0 |
| ODI |
0 |
13 |
0 |
84 |
746 |
152 |
0 |
0 |
| CDI |
0 |
6 |
0 |
6 |
360 |
1131 |
12 |
0 |
| VCDI |
0 |
1 |
0 |
10 |
50 |
3906 |
8413 |
2196 |
|
...date precedes bulletin
|
Date: 2024-10-03:
| 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 |
35752 |
6132 |
61 |
56 |
2 |
0 |
0 |
0 |
| OW |
85 |
575 |
242 |
300 |
57 |
0 |
0 |
0 |
| VODI |
0 |
37 |
78 |
693 |
225 |
19 |
0 |
0 |
| ODI |
0 |
12 |
2 |
167 |
617 |
89 |
0 |
0 |
| CDI |
0 |
17 |
1 |
31 |
361 |
745 |
111 |
0 |
| VCDI |
0 |
14 |
0 |
0 |
135 |
3051 |
8366 |
3198 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
35757 |
6118 |
79 |
80 |
9 |
0 |
0 |
0 |
| OW |
80 |
587 |
226 |
299 |
51 |
0 |
0 |
0 |
| VODI |
0 |
38 |
76 |
671 |
234 |
15 |
0 |
0 |
| ODI |
0 |
12 |
2 |
162 |
578 |
97 |
0 |
0 |
| CDI |
0 |
17 |
1 |
32 |
360 |
702 |
41 |
0 |
| VCDI |
0 |
15 |
0 |
3 |
165 |
3090 |
8436 |
3198 |
|
Date: 2024-10-05:
| 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 |
35836 |
5766 |
66 |
69 |
4 |
0 |
0 |
0 |
| OW |
101 |
657 |
239 |
392 |
61 |
2 |
0 |
0 |
| VODI |
0 |
57 |
88 |
758 |
223 |
35 |
0 |
0 |
| ODI |
0 |
17 |
3 |
249 |
526 |
130 |
1 |
0 |
| CDI |
0 |
28 |
1 |
12 |
395 |
768 |
199 |
0 |
| VCDI |
0 |
20 |
0 |
20 |
171 |
2856 |
6354 |
5127 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
35846 |
5801 |
96 |
98 |
10 |
0 |
0 |
0 |
| OW |
91 |
622 |
209 |
433 |
56 |
3 |
0 |
0 |
| VODI |
0 |
55 |
88 |
650 |
214 |
27 |
0 |
0 |
| ODI |
0 |
14 |
3 |
280 |
523 |
118 |
1 |
0 |
| CDI |
0 |
31 |
0 |
16 |
393 |
701 |
74 |
0 |
| VCDI |
0 |
22 |
1 |
23 |
184 |
2942 |
6479 |
5127 |
|
Date: 2024-10-07:
| 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 |
35714 |
6019 |
106 |
30 |
0 |
0 |
0 |
0 |
| OW |
25 |
476 |
333 |
381 |
7 |
0 |
0 |
0 |
| VODI |
0 |
18 |
15 |
1027 |
227 |
14 |
0 |
0 |
| ODI |
0 |
11 |
1 |
70 |
847 |
144 |
2 |
0 |
| CDI |
0 |
22 |
2 |
18 |
171 |
1300 |
34 |
0 |
| VCDI |
0 |
11 |
0 |
0 |
168 |
1992 |
6979 |
5067 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
35641 |
5631 |
125 |
125 |
10 |
0 |
0 |
0 |
| OW |
98 |
786 |
233 |
370 |
47 |
8 |
0 |
0 |
| VODI |
0 |
53 |
93 |
748 |
224 |
31 |
0 |
0 |
| ODI |
0 |
15 |
0 |
254 |
531 |
154 |
0 |
0 |
| CDI |
0 |
34 |
0 |
11 |
391 |
677 |
83 |
0 |
| VCDI |
0 |
38 |
6 |
18 |
217 |
2580 |
6932 |
5067 |
|
Date: 2024-10-09:
| 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 |
35092 |
6149 |
175 |
119 |
0 |
0 |
0 |
0 |
| OW |
7 |
401 |
252 |
665 |
45 |
0 |
0 |
0 |
| VODI |
1 |
30 |
19 |
748 |
463 |
51 |
0 |
0 |
| ODI |
0 |
17 |
3 |
44 |
769 |
268 |
10 |
0 |
| CDI |
0 |
24 |
8 |
8 |
98 |
1462 |
240 |
0 |
| VCDI |
0 |
13 |
0 |
11 |
81 |
1597 |
5838 |
6523 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
35053 |
5545 |
165 |
227 |
18 |
2 |
0 |
0 |
| OW |
45 |
903 |
204 |
357 |
84 |
15 |
0 |
0 |
| VODI |
1 |
79 |
77 |
820 |
259 |
48 |
0 |
0 |
| ODI |
1 |
19 |
2 |
170 |
661 |
186 |
0 |
0 |
| CDI |
0 |
39 |
1 |
4 |
340 |
822 |
60 |
0 |
| VCDI |
0 |
49 |
8 |
17 |
94 |
2305 |
6028 |
6523 |
|
Date: 2024-10-11:
| 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 |
34582 |
5810 |
232 |
103 |
0 |
0 |
0 |
0 |
| OW |
23 |
341 |
246 |
879 |
122 |
0 |
0 |
0 |
| VODI |
5 |
34 |
25 |
447 |
759 |
82 |
0 |
0 |
| ODI |
2 |
13 |
1 |
65 |
647 |
510 |
15 |
0 |
| CDI |
7 |
24 |
4 |
9 |
201 |
1595 |
847 |
0 |
| VCDI |
1 |
24 |
2 |
33 |
180 |
1903 |
5827 |
5631 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
34544 |
5516 |
184 |
256 |
21 |
0 |
0 |
0 |
| OW |
56 |
511 |
214 |
357 |
108 |
9 |
0 |
0 |
| VODI |
5 |
102 |
105 |
685 |
426 |
77 |
0 |
0 |
| ODI |
5 |
11 |
1 |
180 |
598 |
270 |
0 |
0 |
| CDI |
8 |
27 |
0 |
17 |
504 |
638 |
140 |
0 |
| VCDI |
2 |
79 |
6 |
41 |
252 |
3096 |
6549 |
5631 |
|
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