Validation of sea ice concentration - American sector
Bulletin date: 2024-01-04
Data source: OSI SAF N.H. AMSR 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 |
0 |
264 |
2 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
341 |
38 |
37 |
30 |
26 |
0 |
0 |
| VODI |
0 |
177 |
63 |
156 |
175 |
169 |
14 |
0 |
| ODI |
0 |
118 |
41 |
125 |
240 |
187 |
67 |
0 |
| CDI |
0 |
12 |
13 |
31 |
224 |
444 |
228 |
0 |
| VCDI |
0 |
7 |
7 |
32 |
231 |
2890 |
13747 |
25730 |
|
...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 |
0 |
100 |
7 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
304 |
44 |
50 |
3 |
0 |
0 |
0 |
| VODI |
0 |
140 |
55 |
125 |
155 |
125 |
40 |
0 |
| ODI |
0 |
51 |
35 |
138 |
230 |
157 |
117 |
0 |
| CDI |
0 |
26 |
25 |
44 |
265 |
458 |
415 |
0 |
| VCDI |
0 |
2 |
5 |
15 |
244 |
2063 |
13363 |
27062 |
|
...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 |
0 |
41 |
1 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
171 |
22 |
16 |
1 |
0 |
0 |
0 |
| VODI |
0 |
75 |
23 |
75 |
97 |
31 |
0 |
0 |
| ODI |
0 |
6 |
8 |
139 |
101 |
64 |
0 |
0 |
| CDI |
0 |
0 |
1 |
82 |
223 |
616 |
249 |
0 |
| VCDI |
0 |
0 |
0 |
10 |
419 |
3230 |
14821 |
25344 |
|
...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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
16 |
6 |
17 |
10 |
0 |
0 |
0 |
| VODI |
0 |
25 |
25 |
83 |
64 |
6 |
0 |
0 |
| ODI |
0 |
0 |
2 |
61 |
139 |
20 |
0 |
0 |
| CDI |
0 |
0 |
1 |
93 |
293 |
294 |
242 |
0 |
| VCDI |
0 |
1 |
4 |
158 |
462 |
4020 |
16782 |
23042 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
17 |
7 |
20 |
15 |
0 |
0 |
0 |
| VODI |
0 |
24 |
23 |
77 |
69 |
9 |
0 |
0 |
| ODI |
0 |
0 |
3 |
66 |
150 |
21 |
0 |
0 |
| CDI |
0 |
0 |
1 |
85 |
285 |
350 |
252 |
0 |
| VCDI |
0 |
1 |
4 |
164 |
449 |
3960 |
16772 |
23042 |
|
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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
18 |
8 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
80 |
74 |
5 |
0 |
| CDI |
0 |
0 |
0 |
0 |
76 |
254 |
162 |
5 |
| VCDI |
0 |
5 |
6 |
77 |
622 |
3426 |
14336 |
26712 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
16 |
12 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
86 |
51 |
4 |
0 |
| CDI |
0 |
0 |
0 |
0 |
79 |
315 |
216 |
5 |
| VCDI |
0 |
5 |
6 |
77 |
615 |
3384 |
14283 |
26712 |
|
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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
1 |
5 |
0 |
0 |
| CDI |
0 |
0 |
0 |
1 |
20 |
214 |
142 |
0 |
| VCDI |
0 |
7 |
9 |
73 |
679 |
3523 |
16877 |
24315 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
2 |
13 |
7 |
0 |
| CDI |
0 |
0 |
0 |
1 |
17 |
160 |
154 |
1 |
| VCDI |
0 |
7 |
9 |
73 |
681 |
3569 |
16858 |
24314 |
|
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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
4 |
1 |
0 |
0 |
| CDI |
0 |
0 |
0 |
2 |
14 |
127 |
27 |
1 |
| VCDI |
0 |
8 |
6 |
36 |
422 |
3147 |
16833 |
25238 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
5 |
6 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
5 |
110 |
43 |
0 |
| VCDI |
0 |
8 |
6 |
38 |
430 |
3159 |
16817 |
25239 |
|
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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
| ODI |
0 |
0 |
0 |
5 |
10 |
10 |
0 |
0 |
| CDI |
0 |
0 |
0 |
12 |
83 |
66 |
19 |
1 |
| VCDI |
0 |
5 |
8 |
62 |
937 |
3063 |
15626 |
25958 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
1 |
1 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
1 |
12 |
9 |
4 |
0 |
| CDI |
0 |
5 |
2 |
3 |
68 |
126 |
85 |
0 |
| VCDI |
0 |
0 |
6 |
74 |
949 |
3005 |
15556 |
25959 |
|
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