Validation of sea ice concentration - American sector
Bulletin date: 2023-01-05
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2022-12-30:
| 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 |
6 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
14 |
12 |
11 |
11 |
2 |
0 |
0 |
| VODI |
0 |
6 |
22 |
81 |
104 |
11 |
0 |
0 |
| ODI |
0 |
0 |
23 |
128 |
231 |
135 |
13 |
0 |
| CDI |
0 |
0 |
0 |
76 |
343 |
365 |
116 |
18 |
| VCDI |
0 |
0 |
0 |
5 |
133 |
2386 |
12217 |
29396 |
|
...date precedes bulletin
|
Date: 2023-01-01:
| 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 |
2 |
7 |
14 |
0 |
0 |
0 |
0 |
| VODI |
0 |
4 |
8 |
22 |
69 |
6 |
0 |
0 |
| ODI |
0 |
0 |
16 |
26 |
184 |
93 |
19 |
0 |
| CDI |
0 |
0 |
0 |
32 |
369 |
322 |
90 |
8 |
| VCDI |
0 |
0 |
0 |
25 |
306 |
2162 |
14253 |
27829 |
|
...date precedes bulletin
|
Date: 2023-01-03:
| 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 |
4 |
6 |
0 |
0 |
0 |
| VODI |
0 |
0 |
4 |
23 |
8 |
4 |
0 |
0 |
| ODI |
0 |
0 |
2 |
15 |
92 |
56 |
1 |
0 |
| CDI |
0 |
0 |
1 |
26 |
127 |
387 |
59 |
8 |
| VCDI |
0 |
0 |
0 |
22 |
282 |
1942 |
16981 |
25816 |
|
...date precedes bulletin
|
Date: 2023-01-05:
| 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 |
5 |
28 |
3 |
0 |
0 |
| ODI |
0 |
0 |
0 |
12 |
26 |
7 |
2 |
0 |
| CDI |
0 |
0 |
0 |
9 |
67 |
238 |
72 |
14 |
| VCDI |
0 |
2 |
2 |
35 |
207 |
1952 |
15810 |
27375 |
|
|
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 |
2 |
1 |
0 |
0 |
| VODI |
0 |
0 |
0 |
2 |
32 |
2 |
0 |
0 |
| ODI |
0 |
0 |
0 |
15 |
29 |
6 |
0 |
0 |
| CDI |
0 |
0 |
0 |
13 |
76 |
252 |
74 |
14 |
| VCDI |
0 |
2 |
2 |
31 |
189 |
1939 |
15810 |
27375 |
|
Date: 2023-01-07:
| 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 |
1 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
3 |
45 |
1 |
0 |
| CDI |
0 |
0 |
0 |
1 |
18 |
135 |
53 |
7 |
| VCDI |
0 |
0 |
0 |
2 |
84 |
1474 |
12471 |
31571 |
|
|
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 |
15 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
2 |
32 |
0 |
0 |
| CDI |
0 |
0 |
0 |
1 |
20 |
188 |
65 |
11 |
| VCDI |
0 |
0 |
0 |
2 |
82 |
1420 |
12460 |
31567 |
|
Date: 2023-01-09:
| 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 |
1 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
3 |
15 |
74 |
8 |
3 |
| VCDI |
0 |
0 |
0 |
4 |
74 |
1146 |
11899 |
32639 |
|
|
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 |
34 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
16 |
124 |
46 |
0 |
| VCDI |
0 |
0 |
0 |
7 |
69 |
1062 |
11861 |
32642 |
|
Date: 2023-01-11:
| 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 |
27 |
24 |
11 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
122 |
1841 |
18440 |
25399 |
|
|
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 |
35 |
1 |
0 |
| CDI |
0 |
0 |
0 |
0 |
16 |
88 |
40 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
133 |
1742 |
18410 |
25399 |
|
Date: 2023-01-13:
| 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 |
0 |
0 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
3 |
0 |
3 |
0 |
| CDI |
0 |
2 |
0 |
5 |
30 |
41 |
51 |
0 |
| VCDI |
0 |
3 |
1 |
35 |
110 |
2156 |
21397 |
22029 |
|
|
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 |
8 |
7 |
0 |
| CDI |
0 |
0 |
0 |
0 |
7 |
92 |
169 |
11 |
| VCDI |
0 |
5 |
1 |
40 |
136 |
2097 |
21275 |
22018 |
|
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