Validation of sea ice concentration - American sector
Bulletin date: 2024-01-04
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-12-29:
| 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 |
6329 |
3360 |
113 |
98 |
1 |
0 |
0 |
0 |
| OW |
1 |
475 |
92 |
258 |
83 |
11 |
0 |
0 |
| VODI |
0 |
179 |
83 |
519 |
601 |
161 |
15 |
0 |
| ODI |
0 |
88 |
30 |
201 |
774 |
255 |
62 |
0 |
| CDI |
0 |
13 |
4 |
51 |
560 |
802 |
248 |
0 |
| VCDI |
0 |
0 |
0 |
30 |
259 |
3799 |
11936 |
29740 |
|
...date precedes bulletin
|
Date: 2023-12-31:
| 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 |
6510 |
3027 |
55 |
73 |
10 |
0 |
0 |
0 |
| OW |
0 |
511 |
91 |
206 |
44 |
0 |
0 |
0 |
| VODI |
0 |
168 |
110 |
434 |
494 |
109 |
23 |
0 |
| ODI |
0 |
15 |
37 |
300 |
651 |
240 |
95 |
0 |
| CDI |
0 |
1 |
2 |
154 |
651 |
659 |
442 |
5 |
| VCDI |
0 |
0 |
1 |
42 |
533 |
3631 |
10089 |
31818 |
|
...date precedes bulletin
|
Date: 2024-01-02:
| 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 |
6863 |
2817 |
75 |
60 |
0 |
0 |
0 |
0 |
| OW |
15 |
313 |
140 |
235 |
9 |
0 |
0 |
0 |
| VODI |
9 |
44 |
39 |
381 |
315 |
20 |
0 |
0 |
| ODI |
6 |
5 |
1 |
193 |
538 |
181 |
0 |
0 |
| CDI |
0 |
2 |
0 |
57 |
487 |
1447 |
152 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
475 |
4405 |
14260 |
27687 |
|
...date precedes bulletin
|
Date: 2024-01-04:
| 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 |
6675 |
2765 |
78 |
104 |
0 |
0 |
0 |
0 |
| OW |
7 |
176 |
74 |
283 |
43 |
0 |
0 |
0 |
| VODI |
9 |
24 |
16 |
308 |
422 |
2 |
0 |
0 |
| ODI |
0 |
1 |
0 |
96 |
618 |
78 |
0 |
0 |
| CDI |
0 |
1 |
0 |
30 |
695 |
942 |
230 |
0 |
| VCDI |
0 |
0 |
0 |
66 |
677 |
5480 |
14877 |
26454 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6674 |
2793 |
83 |
103 |
0 |
0 |
0 |
0 |
| OW |
9 |
148 |
69 |
303 |
48 |
0 |
0 |
0 |
| VODI |
8 |
25 |
16 |
282 |
421 |
3 |
0 |
0 |
| ODI |
0 |
0 |
0 |
101 |
621 |
79 |
0 |
0 |
| CDI |
0 |
1 |
0 |
29 |
679 |
1082 |
258 |
0 |
| VCDI |
0 |
0 |
0 |
69 |
686 |
5338 |
14849 |
26454 |
|
Date: 2024-01-06:
| 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 |
6634 |
2709 |
47 |
82 |
0 |
0 |
0 |
0 |
| OW |
14 |
229 |
62 |
184 |
23 |
0 |
0 |
0 |
| VODI |
2 |
14 |
25 |
245 |
235 |
47 |
0 |
0 |
| ODI |
0 |
1 |
0 |
25 |
386 |
365 |
10 |
0 |
| CDI |
0 |
0 |
0 |
0 |
99 |
845 |
276 |
8 |
| VCDI |
0 |
0 |
0 |
0 |
830 |
4849 |
12855 |
30130 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6633 |
2715 |
51 |
72 |
0 |
0 |
0 |
0 |
| OW |
15 |
223 |
55 |
227 |
17 |
0 |
0 |
0 |
| VODI |
2 |
14 |
28 |
215 |
248 |
37 |
0 |
0 |
| ODI |
0 |
1 |
0 |
18 |
368 |
351 |
6 |
0 |
| CDI |
0 |
0 |
0 |
4 |
114 |
817 |
352 |
10 |
| VCDI |
0 |
0 |
0 |
0 |
826 |
4901 |
12783 |
30128 |
|
Date: 2024-01-08:
| 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 |
7533 |
2159 |
25 |
32 |
0 |
0 |
0 |
0 |
| OW |
9 |
316 |
79 |
142 |
16 |
0 |
0 |
0 |
| VODI |
5 |
33 |
10 |
335 |
173 |
1 |
0 |
0 |
| ODI |
1 |
8 |
1 |
51 |
382 |
47 |
0 |
0 |
| CDI |
0 |
3 |
1 |
25 |
196 |
773 |
198 |
25 |
| VCDI |
0 |
0 |
0 |
35 |
1051 |
4414 |
14391 |
28761 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7529 |
2098 |
33 |
55 |
1 |
0 |
0 |
0 |
| OW |
11 |
271 |
53 |
85 |
39 |
0 |
0 |
0 |
| VODI |
7 |
95 |
22 |
231 |
207 |
10 |
0 |
0 |
| ODI |
1 |
34 |
4 |
86 |
199 |
140 |
28 |
0 |
| CDI |
0 |
19 |
3 |
102 |
207 |
412 |
251 |
13 |
| VCDI |
0 |
2 |
1 |
61 |
1165 |
4673 |
14310 |
28773 |
|
Date: 2024-01-10:
| 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 |
7198 |
2588 |
45 |
57 |
0 |
0 |
0 |
0 |
| OW |
14 |
254 |
63 |
158 |
42 |
0 |
0 |
0 |
| VODI |
3 |
36 |
20 |
210 |
166 |
71 |
0 |
0 |
| ODI |
0 |
7 |
0 |
63 |
195 |
148 |
6 |
0 |
| CDI |
0 |
2 |
0 |
3 |
97 |
544 |
410 |
23 |
| VCDI |
0 |
0 |
0 |
0 |
528 |
4164 |
12715 |
31401 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7191 |
2613 |
59 |
80 |
10 |
0 |
0 |
0 |
| OW |
20 |
184 |
54 |
165 |
30 |
0 |
0 |
0 |
| VODI |
4 |
69 |
14 |
197 |
171 |
61 |
1 |
0 |
| ODI |
0 |
16 |
1 |
44 |
107 |
163 |
38 |
0 |
| CDI |
0 |
5 |
0 |
5 |
140 |
348 |
224 |
10 |
| VCDI |
0 |
0 |
0 |
0 |
570 |
4355 |
12868 |
31414 |
|
Date: 2024-01-12:
| 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 |
7472 |
2430 |
62 |
51 |
0 |
0 |
0 |
0 |
| OW |
11 |
249 |
49 |
133 |
34 |
0 |
0 |
0 |
| VODI |
0 |
34 |
23 |
181 |
230 |
31 |
0 |
0 |
| ODI |
0 |
13 |
1 |
40 |
295 |
94 |
0 |
0 |
| CDI |
0 |
4 |
0 |
5 |
265 |
509 |
75 |
18 |
| VCDI |
0 |
0 |
0 |
3 |
1222 |
4738 |
13904 |
29055 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7468 |
2487 |
86 |
140 |
21 |
0 |
0 |
0 |
| OW |
12 |
110 |
43 |
132 |
83 |
1 |
0 |
0 |
| VODI |
3 |
91 |
4 |
88 |
221 |
97 |
1 |
0 |
| ODI |
0 |
33 |
2 |
37 |
116 |
199 |
16 |
0 |
| CDI |
0 |
6 |
0 |
11 |
209 |
407 |
227 |
16 |
| VCDI |
0 |
3 |
0 |
5 |
1396 |
4668 |
13735 |
29057 |
|
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