Validation of sea ice concentration - American sector
Bulletin date: 2025-02-13
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-02-07:
| 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 |
2 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
0 |
34 |
11 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
16 |
2316 |
19573 |
23914 |
|
...date precedes bulletin
|
Date: 2025-02-09:
| 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 |
0 |
11 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
2 |
37 |
25 |
2 |
| VCDI |
0 |
0 |
0 |
0 |
8 |
1542 |
14479 |
29760 |
|
...date precedes bulletin
|
Date: 2025-02-11:
| 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 |
0 |
16 |
38 |
1 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
946 |
11855 |
33007 |
|
...date precedes bulletin
|
Date: 2025-02-13:
| 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 |
1 |
2 |
0 |
0 |
0 |
| ODI |
0 |
2 |
2 |
9 |
17 |
1 |
0 |
0 |
| CDI |
0 |
7 |
4 |
7 |
76 |
93 |
7 |
36 |
| VCDI |
0 |
3 |
11 |
39 |
125 |
1745 |
13263 |
30416 |
|
|
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 |
2 |
3 |
0 |
0 |
0 |
| ODI |
0 |
2 |
2 |
9 |
18 |
2 |
0 |
0 |
| CDI |
0 |
6 |
6 |
6 |
66 |
98 |
13 |
38 |
| VCDI |
0 |
4 |
9 |
39 |
133 |
1739 |
13257 |
30414 |
|
Date: 2025-02-15:
| 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 |
1 |
0 |
0 |
0 |
| ODI |
0 |
3 |
3 |
4 |
18 |
2 |
0 |
0 |
| CDI |
0 |
5 |
1 |
2 |
21 |
56 |
13 |
14 |
| VCDI |
0 |
0 |
11 |
67 |
134 |
2400 |
12753 |
30358 |
|
|
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 |
1 |
0 |
0 |
0 |
| ODI |
0 |
4 |
3 |
4 |
18 |
1 |
0 |
0 |
| CDI |
0 |
4 |
2 |
4 |
23 |
60 |
10 |
14 |
| VCDI |
0 |
0 |
10 |
65 |
132 |
2397 |
12756 |
30358 |
|
Date: 2025-02-17:
| 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 |
8 |
7 |
0 |
0 |
0 |
| ODI |
0 |
2 |
1 |
4 |
13 |
2 |
0 |
0 |
| CDI |
0 |
0 |
1 |
9 |
34 |
31 |
31 |
24 |
| VCDI |
0 |
0 |
0 |
12 |
206 |
1613 |
12645 |
31223 |
|
|
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 |
8 |
6 |
0 |
0 |
0 |
| ODI |
0 |
2 |
1 |
4 |
10 |
0 |
0 |
0 |
| CDI |
0 |
0 |
1 |
8 |
33 |
39 |
34 |
28 |
| VCDI |
0 |
0 |
0 |
13 |
211 |
1607 |
12642 |
31219 |
|
Date: 2025-02-19:
| 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 |
2 |
2 |
7 |
14 |
0 |
0 |
0 |
| ODI |
0 |
0 |
3 |
7 |
17 |
6 |
3 |
0 |
| CDI |
0 |
0 |
0 |
4 |
45 |
85 |
48 |
11 |
| VCDI |
0 |
0 |
0 |
4 |
218 |
1535 |
12731 |
31124 |
|
|
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 |
1 |
3 |
11 |
0 |
0 |
0 |
| ODI |
0 |
2 |
2 |
6 |
15 |
4 |
0 |
0 |
| CDI |
0 |
0 |
2 |
6 |
24 |
24 |
26 |
5 |
| VCDI |
0 |
0 |
0 |
7 |
244 |
1598 |
12756 |
31130 |
|
Date: 2025-02-21:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
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