Validation of sea ice concentration - American sector
Bulletin date: 2023-03-30
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-03-24:
| 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 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
62 |
5 |
4 |
0 |
| CDI |
0 |
0 |
0 |
0 |
68 |
31 |
39 |
4 |
| VCDI |
0 |
0 |
0 |
0 |
174 |
719 |
12516 |
32244 |
|
...date precedes bulletin
|
Date: 2023-03-26:
| 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 |
6 |
13 |
7 |
0 |
| ODI |
0 |
0 |
0 |
0 |
2 |
16 |
19 |
0 |
| CDI |
0 |
1 |
1 |
6 |
47 |
97 |
62 |
2 |
| VCDI |
0 |
0 |
0 |
6 |
114 |
1334 |
18018 |
26115 |
|
...date precedes bulletin
|
Date: 2023-03-28:
| 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 |
4 |
15 |
10 |
0 |
| CDI |
0 |
0 |
0 |
0 |
55 |
89 |
99 |
33 |
| VCDI |
0 |
0 |
0 |
0 |
254 |
1170 |
18444 |
25693 |
|
...date precedes bulletin
|
Date: 2023-03-30:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
0 |
11 |
6 |
0 |
| ODI |
0 |
0 |
0 |
0 |
0 |
7 |
20 |
0 |
| CDI |
0 |
0 |
0 |
0 |
6 |
65 |
71 |
2 |
| VCDI |
0 |
0 |
0 |
0 |
70 |
957 |
12949 |
31702 |
|
|
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 |
14 |
0 |
| ODI |
0 |
0 |
0 |
0 |
0 |
9 |
21 |
0 |
| CDI |
0 |
0 |
0 |
0 |
8 |
70 |
68 |
4 |
| VCDI |
0 |
0 |
0 |
0 |
68 |
947 |
12943 |
31700 |
|
Date: 2023-04-01:
| 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 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
7 |
15 |
8 |
0 |
| CDI |
0 |
0 |
0 |
3 |
48 |
66 |
75 |
16 |
| VCDI |
0 |
0 |
0 |
1 |
95 |
812 |
9517 |
35203 |
|
|
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 |
9 |
17 |
20 |
1 |
| CDI |
0 |
0 |
0 |
3 |
47 |
60 |
92 |
15 |
| VCDI |
0 |
0 |
0 |
1 |
94 |
816 |
9488 |
35203 |
|
Date: 2023-04-03:
| 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 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
1 |
2 |
2 |
0 |
0 |
| CDI |
0 |
0 |
0 |
7 |
49 |
81 |
45 |
5 |
| VCDI |
0 |
0 |
0 |
7 |
137 |
806 |
10833 |
33891 |
|
|
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 |
3 |
8 |
0 |
0 |
| CDI |
0 |
0 |
0 |
4 |
42 |
75 |
44 |
10 |
| VCDI |
0 |
0 |
0 |
10 |
143 |
806 |
10834 |
33886 |
|
Date: 2023-04-05:
| 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 |
0 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
1 |
9 |
17 |
25 |
5 |
| VCDI |
0 |
0 |
0 |
14 |
141 |
720 |
8100 |
36834 |
|
|
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 |
3 |
2 |
| CDI |
0 |
0 |
0 |
0 |
8 |
24 |
35 |
4 |
| VCDI |
0 |
0 |
0 |
15 |
142 |
713 |
8087 |
36833 |
|
Date: 2023-04-07:
| 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 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
5 |
13 |
20 |
36 |
19 |
| VCDI |
0 |
0 |
0 |
66 |
241 |
711 |
10549 |
34206 |
|
|
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 |
2 |
| CDI |
0 |
0 |
0 |
4 |
10 |
3 |
16 |
14 |
| VCDI |
0 |
0 |
0 |
67 |
244 |
728 |
10569 |
34209 |
|
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