Validation of sea ice concentration - American sector
Bulletin date: 2023-03-02
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-02-24:
| 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 |
17 |
30 |
0 |
| ODI |
0 |
0 |
0 |
0 |
1 |
12 |
17 |
0 |
| CDI |
0 |
0 |
0 |
0 |
62 |
160 |
83 |
0 |
| VCDI |
0 |
0 |
1 |
23 |
148 |
1779 |
19197 |
24336 |
|
...date precedes bulletin
|
Date: 2023-02-26:
| 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 |
2 |
45 |
5 |
7 |
| VCDI |
0 |
0 |
0 |
5 |
55 |
1622 |
16898 |
27227 |
|
...date precedes bulletin
|
Date: 2023-02-28:
| 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 |
0 |
5 |
5 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
60 |
1346 |
15059 |
29391 |
|
...date precedes bulletin
|
Date: 2023-03-02:
| 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 |
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 |
0 |
11 |
1 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
1391 |
19340 |
25120 |
|
|
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 |
0 |
14 |
1 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
1388 |
19340 |
25120 |
|
Date: 2023-03-04:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
1 |
0 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
1 |
5 |
2 |
8 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
57 |
769 |
13329 |
31688 |
|
|
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 |
1 |
4 |
2 |
9 |
0 |
| VCDI |
0 |
0 |
0 |
7 |
58 |
769 |
13328 |
31688 |
|
Date: 2023-03-06:
| 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 |
0 |
14 |
16 |
0 |
| ODI |
0 |
0 |
0 |
0 |
0 |
14 |
22 |
0 |
| CDI |
0 |
1 |
1 |
6 |
11 |
45 |
55 |
0 |
| VCDI |
0 |
0 |
0 |
30 |
123 |
1134 |
15245 |
29149 |
|
|
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 |
8 |
0 |
| VODI |
0 |
0 |
0 |
0 |
0 |
26 |
27 |
0 |
| ODI |
0 |
1 |
0 |
2 |
1 |
17 |
28 |
0 |
| CDI |
0 |
0 |
1 |
7 |
11 |
44 |
119 |
0 |
| VCDI |
0 |
0 |
0 |
27 |
122 |
1120 |
15156 |
29149 |
|
Date: 2023-03-08:
| 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 |
2 |
0 |
| ODI |
0 |
0 |
0 |
0 |
12 |
12 |
7 |
0 |
| CDI |
0 |
0 |
0 |
2 |
63 |
122 |
46 |
0 |
| VCDI |
0 |
0 |
0 |
17 |
139 |
1751 |
17886 |
25807 |
|
|
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 |
8 |
25 |
0 |
| VODI |
0 |
0 |
0 |
0 |
0 |
24 |
38 |
0 |
| ODI |
0 |
0 |
0 |
0 |
1 |
14 |
50 |
0 |
| CDI |
0 |
0 |
0 |
0 |
29 |
51 |
120 |
10 |
| VCDI |
0 |
0 |
0 |
19 |
184 |
1788 |
17708 |
25797 |
|
Date: 2023-03-10:
| 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 |
2 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
3 |
4 |
28 |
35 |
0 |
| VCDI |
0 |
0 |
2 |
23 |
106 |
1112 |
19808 |
24743 |
|
|
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 |
15 |
35 |
0 |
| ODI |
0 |
0 |
0 |
2 |
1 |
5 |
56 |
1 |
| CDI |
0 |
0 |
0 |
3 |
16 |
20 |
144 |
28 |
| VCDI |
0 |
0 |
2 |
21 |
95 |
1100 |
19608 |
24714 |
|
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