Validation of sea ice concentration - American sector
Bulletin date: 2024-02-22
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-02-16:
| 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 |
31 |
7 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
44 |
789 |
10675 |
34320 |
|
...date precedes bulletin
|
Date: 2024-02-18:
| 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 |
3 |
9 |
1 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
29 |
483 |
10056 |
35285 |
|
...date precedes bulletin
|
Date: 2024-02-20:
| 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 |
2 |
11 |
43 |
41 |
2 |
| VCDI |
0 |
0 |
8 |
34 |
162 |
797 |
9656 |
35110 |
|
...date precedes bulletin
|
Date: 2024-02-22:
| 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 |
0 |
13 |
0 |
| CDI |
0 |
1 |
1 |
2 |
24 |
43 |
38 |
0 |
| VCDI |
0 |
3 |
12 |
71 |
131 |
949 |
13219 |
31356 |
|
|
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 |
0 |
9 |
0 |
| CDI |
0 |
0 |
1 |
2 |
26 |
46 |
42 |
0 |
| VCDI |
0 |
4 |
12 |
71 |
129 |
946 |
13219 |
31356 |
|
Date: 2024-02-24:
| 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 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
2 |
0 |
6 |
0 |
| CDI |
0 |
0 |
0 |
0 |
19 |
12 |
33 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
102 |
950 |
11172 |
33564 |
|
|
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 |
5 |
0 |
| CDI |
0 |
0 |
0 |
0 |
20 |
17 |
37 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
101 |
945 |
11169 |
33564 |
|
Date: 2024-02-26:
| 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 |
1 |
4 |
| CDI |
0 |
0 |
0 |
0 |
34 |
48 |
22 |
4 |
| VCDI |
0 |
0 |
0 |
17 |
75 |
1355 |
10837 |
33469 |
|
|
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 |
6 |
32 |
503 |
3696 |
11444 |
| CDI |
0 |
0 |
0 |
0 |
12 |
28 |
8 |
15 |
| VCDI |
0 |
0 |
0 |
11 |
65 |
872 |
7156 |
22018 |
|
Date: 2024-02-28:
| 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 |
2 |
36 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
1343 |
11127 |
33354 |
|
|
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 |
2 |
672 |
6022 |
3196 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
75 |
| VODI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
184 |
| ODI |
0 |
0 |
0 |
0 |
0 |
254 |
1676 |
10120 |
| CDI |
0 |
0 |
0 |
0 |
0 |
11 |
5 |
267 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
442 |
3424 |
19512 |
|
Date: 2024-03-01:
| 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 |
5 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
11 |
44 |
85 |
13 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
86 |
1822 |
10549 |
33250 |
|
|
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 |
12 |
64 |
1036 |
6304 |
2486 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
76 |
| VODI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
177 |
| ODI |
0 |
0 |
0 |
0 |
25 |
291 |
1395 |
10337 |
| CDI |
0 |
0 |
0 |
0 |
0 |
2 |
5 |
292 |
| VCDI |
0 |
0 |
0 |
0 |
46 |
578 |
2858 |
19882 |
|
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