Validation of sea ice concentration - American sector
Bulletin date: 2024-12-12
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-12-06:
| 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 |
3854 |
1848 |
25 |
27 |
17 |
2 |
0 |
0 |
| OW |
66 |
606 |
39 |
117 |
91 |
0 |
0 |
0 |
| VODI |
0 |
416 |
90 |
215 |
289 |
230 |
0 |
0 |
| ODI |
0 |
20 |
12 |
58 |
203 |
511 |
1 |
0 |
| CDI |
0 |
0 |
2 |
26 |
145 |
508 |
197 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
111 |
1553 |
11512 |
23072 |
|
...date precedes bulletin
|
Date: 2024-12-08:
| 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 |
3332 |
1668 |
5 |
1 |
0 |
0 |
0 |
0 |
| OW |
137 |
732 |
53 |
66 |
19 |
0 |
0 |
0 |
| VODI |
0 |
397 |
47 |
140 |
189 |
34 |
0 |
0 |
| ODI |
0 |
144 |
52 |
146 |
333 |
454 |
59 |
0 |
| CDI |
0 |
0 |
1 |
40 |
341 |
434 |
237 |
0 |
| VCDI |
0 |
0 |
0 |
18 |
200 |
1976 |
12115 |
22496 |
|
...date precedes bulletin
|
Date: 2024-12-10:
| 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 |
3042 |
1852 |
21 |
8 |
0 |
0 |
0 |
0 |
| OW |
83 |
949 |
33 |
58 |
5 |
0 |
0 |
0 |
| VODI |
2 |
245 |
87 |
182 |
160 |
1 |
0 |
0 |
| ODI |
0 |
31 |
24 |
142 |
418 |
156 |
0 |
0 |
| CDI |
0 |
8 |
7 |
33 |
330 |
559 |
153 |
0 |
| VCDI |
0 |
0 |
8 |
51 |
261 |
2505 |
12652 |
21800 |
|
...date precedes bulletin
|
Date: 2024-12-12:
| 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 |
2923 |
2178 |
10 |
14 |
0 |
0 |
0 |
0 |
| OW |
91 |
736 |
42 |
60 |
7 |
0 |
0 |
0 |
| VODI |
1 |
317 |
54 |
142 |
98 |
71 |
1 |
0 |
| ODI |
0 |
89 |
47 |
115 |
212 |
111 |
3 |
0 |
| CDI |
0 |
23 |
30 |
134 |
421 |
405 |
27 |
2 |
| VCDI |
0 |
0 |
1 |
57 |
369 |
3490 |
14058 |
19527 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2963 |
2403 |
17 |
31 |
1 |
0 |
0 |
0 |
| OW |
51 |
508 |
47 |
65 |
25 |
2 |
0 |
0 |
| VODI |
1 |
322 |
43 |
110 |
74 |
66 |
1 |
0 |
| ODI |
0 |
99 |
49 |
117 |
183 |
105 |
2 |
0 |
| CDI |
0 |
11 |
28 |
152 |
428 |
417 |
71 |
10 |
| VCDI |
0 |
0 |
0 |
47 |
396 |
3487 |
14015 |
19519 |
|
Date: 2024-12-14:
| 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 |
2458 |
2226 |
26 |
24 |
5 |
0 |
0 |
0 |
| OW |
200 |
480 |
66 |
143 |
29 |
0 |
0 |
0 |
| VODI |
3 |
277 |
60 |
232 |
121 |
19 |
0 |
0 |
| ODI |
0 |
93 |
48 |
116 |
206 |
126 |
3 |
0 |
| CDI |
0 |
2 |
8 |
90 |
378 |
587 |
82 |
0 |
| VCDI |
0 |
0 |
0 |
56 |
422 |
3673 |
13637 |
19970 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2543 |
2320 |
46 |
57 |
14 |
0 |
0 |
0 |
| OW |
117 |
364 |
60 |
159 |
44 |
2 |
0 |
0 |
| VODI |
1 |
265 |
52 |
169 |
99 |
46 |
0 |
0 |
| ODI |
0 |
123 |
43 |
128 |
176 |
92 |
9 |
0 |
| CDI |
0 |
6 |
7 |
91 |
401 |
626 |
199 |
2 |
| VCDI |
0 |
0 |
0 |
57 |
427 |
3639 |
13514 |
19968 |
|
Date: 2024-12-16:
| 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 |
2206 |
2321 |
37 |
55 |
39 |
0 |
0 |
0 |
| OW |
13 |
388 |
68 |
128 |
109 |
16 |
0 |
0 |
| VODI |
0 |
260 |
49 |
135 |
116 |
57 |
0 |
0 |
| ODI |
0 |
141 |
29 |
99 |
101 |
119 |
3 |
0 |
| CDI |
0 |
44 |
22 |
111 |
206 |
680 |
304 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
307 |
3311 |
13951 |
20435 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2197 |
2203 |
40 |
51 |
32 |
0 |
0 |
0 |
| OW |
22 |
420 |
62 |
136 |
101 |
5 |
0 |
0 |
| VODI |
0 |
321 |
46 |
130 |
138 |
57 |
1 |
0 |
| ODI |
0 |
151 |
36 |
107 |
118 |
140 |
7 |
0 |
| CDI |
0 |
59 |
21 |
100 |
169 |
692 |
285 |
0 |
| VCDI |
0 |
0 |
0 |
10 |
320 |
3289 |
13965 |
20435 |
|
Date: 2024-12-18:
| 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 |
1672 |
2369 |
60 |
52 |
7 |
12 |
0 |
0 |
| OW |
78 |
495 |
37 |
151 |
132 |
23 |
0 |
0 |
| VODI |
0 |
134 |
19 |
69 |
261 |
155 |
1 |
0 |
| ODI |
0 |
28 |
13 |
31 |
137 |
311 |
4 |
0 |
| CDI |
0 |
1 |
14 |
53 |
192 |
985 |
342 |
0 |
| VCDI |
0 |
0 |
4 |
49 |
251 |
2675 |
13283 |
21766 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1721 |
2261 |
45 |
64 |
25 |
15 |
0 |
0 |
| OW |
29 |
316 |
37 |
117 |
134 |
31 |
0 |
0 |
| VODI |
0 |
287 |
27 |
76 |
209 |
176 |
7 |
0 |
| ODI |
0 |
82 |
6 |
25 |
124 |
174 |
22 |
0 |
| CDI |
0 |
81 |
24 |
53 |
117 |
639 |
303 |
0 |
| VCDI |
0 |
0 |
8 |
70 |
371 |
3126 |
13298 |
21766 |
|
Date: 2024-12-20:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
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