Validation of sea ice concentration - American sector
Bulletin date: 2022-01-06
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2021-12-31:
| 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 |
0 |
5 |
18 |
0 |
0 |
0 |
0 |
| OW |
0 |
1 |
8 |
27 |
12 |
0 |
0 |
0 |
| VODI |
0 |
11 |
30 |
49 |
119 |
6 |
0 |
0 |
| ODI |
0 |
10 |
45 |
128 |
260 |
87 |
0 |
0 |
| CDI |
0 |
8 |
37 |
137 |
214 |
189 |
53 |
5 |
| VCDI |
0 |
0 |
10 |
33 |
194 |
1343 |
10388 |
32439 |
|
...date precedes bulletin
|
Date: 2022-01-02:
| 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 |
0 |
0 |
9 |
2 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
20 |
17 |
0 |
0 |
0 |
| VODI |
0 |
0 |
2 |
35 |
25 |
12 |
0 |
0 |
| ODI |
0 |
0 |
2 |
43 |
119 |
41 |
0 |
0 |
| CDI |
0 |
0 |
0 |
72 |
251 |
405 |
72 |
0 |
| VCDI |
0 |
0 |
0 |
90 |
289 |
1396 |
10990 |
31974 |
|
...date precedes bulletin
|
Date: 2022-01-04:
| 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 |
0 |
0 |
1 |
3 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
4 |
34 |
0 |
0 |
0 |
| ODI |
0 |
0 |
1 |
13 |
94 |
10 |
5 |
0 |
| CDI |
0 |
0 |
2 |
23 |
241 |
246 |
70 |
0 |
| VCDI |
0 |
0 |
13 |
41 |
541 |
2133 |
14326 |
28065 |
|
...date precedes bulletin
|
Date: 2022-01-06:
| 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 |
16 |
3 |
0 |
0 |
| ODI |
0 |
0 |
0 |
3 |
50 |
14 |
0 |
0 |
| CDI |
0 |
1 |
0 |
46 |
190 |
135 |
38 |
0 |
| VCDI |
0 |
8 |
11 |
86 |
581 |
2202 |
10783 |
31699 |
|
|
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 |
13 |
5 |
0 |
0 |
| ODI |
0 |
0 |
0 |
5 |
45 |
11 |
0 |
0 |
| CDI |
0 |
1 |
0 |
42 |
180 |
129 |
46 |
0 |
| VCDI |
0 |
8 |
11 |
88 |
599 |
2209 |
10775 |
31699 |
|
Date: 2022-01-08:
| 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 |
11 |
3 |
0 |
| CDI |
0 |
0 |
0 |
3 |
43 |
161 |
43 |
0 |
| VCDI |
0 |
0 |
5 |
39 |
262 |
2547 |
11945 |
30803 |
|
|
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 |
11 |
5 |
0 |
| CDI |
0 |
0 |
0 |
2 |
43 |
151 |
43 |
0 |
| VCDI |
0 |
0 |
5 |
40 |
262 |
2557 |
11943 |
30803 |
|
Date: 2022-01-10:
| 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 |
0 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
6 |
80 |
64 |
24 |
0 |
| VCDI |
0 |
0 |
0 |
35 |
311 |
2557 |
12333 |
30456 |
|
|
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 |
5 |
2 |
0 |
| CDI |
0 |
0 |
0 |
2 |
49 |
49 |
43 |
0 |
| VCDI |
0 |
0 |
0 |
39 |
342 |
2567 |
12312 |
30456 |
|
Date: 2022-01-12:
| 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 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
4 |
24 |
64 |
7 |
0 |
| VCDI |
0 |
0 |
0 |
20 |
171 |
1865 |
13213 |
30498 |
|
|
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 |
25 |
68 |
21 |
2 |
| VCDI |
0 |
0 |
0 |
19 |
170 |
1861 |
13199 |
30496 |
|
Date: 2022-01-14:
| 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 |
10 |
30 |
13 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
69 |
1789 |
8065 |
35890 |
|
|
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 |
19 |
19 |
24 |
| VCDI |
0 |
0 |
0 |
0 |
77 |
1800 |
8059 |
35866 |
|
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