Validation of sea ice concentration - American sector
Bulletin date: 2023-01-05
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2022-12-30:
| 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 |
0 |
4 |
1 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
19 |
2 |
16 |
13 |
0 |
0 |
0 |
| VODI |
0 |
7 |
4 |
85 |
122 |
6 |
0 |
0 |
| ODI |
0 |
0 |
0 |
114 |
276 |
137 |
3 |
0 |
| CDI |
0 |
0 |
0 |
20 |
408 |
407 |
68 |
15 |
| VCDI |
0 |
0 |
0 |
0 |
72 |
2870 |
9951 |
31244 |
|
...date precedes bulletin
|
Date: 2023-01-01:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
20 |
3 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
28 |
78 |
3 |
0 |
0 |
| ODI |
0 |
0 |
0 |
25 |
217 |
90 |
6 |
0 |
| CDI |
0 |
0 |
0 |
19 |
372 |
344 |
65 |
21 |
| VCDI |
0 |
0 |
0 |
0 |
207 |
2400 |
9317 |
32651 |
|
...date precedes bulletin
|
Date: 2023-01-03:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
10 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
4 |
35 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
5 |
115 |
46 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
88 |
486 |
21 |
13 |
| VCDI |
0 |
0 |
0 |
0 |
185 |
2407 |
11863 |
30588 |
|
...date precedes bulletin
|
Date: 2023-01-05:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
34 |
2 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
32 |
10 |
5 |
0 |
| CDI |
0 |
0 |
0 |
0 |
94 |
210 |
82 |
14 |
| VCDI |
0 |
0 |
0 |
0 |
159 |
2127 |
11164 |
31933 |
|
|
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 |
3 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
33 |
3 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
38 |
11 |
1 |
0 |
| CDI |
0 |
0 |
0 |
0 |
101 |
228 |
86 |
14 |
| VCDI |
0 |
0 |
0 |
0 |
144 |
2107 |
11164 |
31933 |
|
Date: 2023-01-07:
| 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 |
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 |
0 |
0 |
46 |
2 |
1 |
| CDI |
0 |
0 |
0 |
0 |
11 |
141 |
44 |
18 |
| VCDI |
0 |
0 |
0 |
0 |
66 |
1523 |
9825 |
34188 |
|
|
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 |
16 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
0 |
32 |
2 |
0 |
| CDI |
0 |
0 |
0 |
0 |
10 |
192 |
66 |
17 |
| VCDI |
0 |
0 |
0 |
0 |
67 |
1471 |
9803 |
34190 |
|
Date: 2023-01-09:
| 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 |
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 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
10 |
77 |
12 |
4 |
| VCDI |
0 |
0 |
0 |
0 |
20 |
1355 |
7835 |
36552 |
|
|
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 |
37 |
1 |
0 |
| CDI |
0 |
0 |
0 |
0 |
5 |
118 |
49 |
14 |
| VCDI |
0 |
0 |
0 |
0 |
25 |
1277 |
7797 |
36542 |
|
Date: 2023-01-11:
| 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 |
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 |
0 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
20 |
19 |
2 |
21 |
| VCDI |
0 |
0 |
0 |
0 |
26 |
1675 |
9597 |
34506 |
|
|
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 |
0 |
36 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
8 |
98 |
27 |
11 |
| VCDI |
0 |
0 |
0 |
0 |
38 |
1560 |
9572 |
34516 |
|
Date: 2023-01-13:
| 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 |
3 |
3 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
26 |
58 |
38 |
7 |
| VCDI |
0 |
0 |
0 |
0 |
143 |
2235 |
12771 |
30582 |
|
|
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 |
0 |
15 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
2 |
100 |
84 |
93 |
| VCDI |
0 |
0 |
0 |
0 |
170 |
2181 |
12725 |
30496 |
|
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