Validation of sea ice concentration - American sector
Bulletin date: 2024-04-04
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-03-29:
| 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 |
9 |
3 |
0 |
| CDI |
0 |
0 |
0 |
0 |
27 |
61 |
67 |
4 |
| VCDI |
0 |
0 |
1 |
44 |
220 |
1647 |
15955 |
27825 |
|
...date precedes bulletin
|
Date: 2024-03-31:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
1 |
0 |
0 |
2 |
0 |
0 |
| ODI |
0 |
2 |
1 |
2 |
7 |
8 |
1 |
0 |
| CDI |
0 |
0 |
3 |
6 |
50 |
52 |
25 |
0 |
| VCDI |
0 |
0 |
4 |
52 |
425 |
1694 |
15724 |
27807 |
|
...date precedes bulletin
|
Date: 2024-04-02:
| 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 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
1 |
0 |
3 |
4 |
0 |
0 |
0 |
| ODI |
0 |
2 |
0 |
2 |
6 |
0 |
0 |
0 |
| CDI |
0 |
1 |
1 |
4 |
33 |
80 |
68 |
17 |
| VCDI |
0 |
1 |
3 |
17 |
314 |
1415 |
11785 |
32109 |
|
...date precedes bulletin
|
Date: 2024-04-04:
| 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 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
| ODI |
0 |
0 |
0 |
0 |
0 |
4 |
20 |
2 |
| CDI |
0 |
0 |
0 |
0 |
27 |
72 |
156 |
19 |
| VCDI |
0 |
0 |
0 |
14 |
207 |
1175 |
13582 |
30587 |
|
|
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 |
2 |
0 |
| ODI |
0 |
0 |
0 |
0 |
1 |
4 |
21 |
2 |
| CDI |
0 |
0 |
0 |
2 |
43 |
73 |
179 |
22 |
| VCDI |
0 |
0 |
0 |
12 |
190 |
1174 |
13557 |
30584 |
|
Date: 2024-04-06:
| 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 |
0 |
1 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
0 |
2 |
13 |
1 |
| CDI |
0 |
0 |
0 |
0 |
18 |
105 |
207 |
16 |
| VCDI |
0 |
0 |
0 |
17 |
191 |
1344 |
14036 |
29915 |
|
|
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 |
3 |
0 |
| ODI |
0 |
0 |
0 |
0 |
0 |
3 |
11 |
1 |
| CDI |
0 |
0 |
0 |
0 |
20 |
114 |
284 |
17 |
| VCDI |
0 |
0 |
0 |
17 |
189 |
1334 |
13958 |
29914 |
|
Date: 2024-04-08:
| 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 |
2 |
1 |
0 |
| ODI |
0 |
0 |
0 |
0 |
8 |
6 |
4 |
2 |
| CDI |
0 |
0 |
0 |
2 |
35 |
114 |
105 |
21 |
| VCDI |
0 |
0 |
0 |
30 |
191 |
1331 |
13469 |
30545 |
|
|
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 |
2 |
1 |
0 |
| ODI |
0 |
0 |
0 |
0 |
2 |
6 |
8 |
2 |
| CDI |
0 |
0 |
0 |
1 |
40 |
112 |
309 |
22 |
| VCDI |
0 |
0 |
0 |
31 |
192 |
1333 |
13261 |
30544 |
|
Date: 2024-04-10:
| 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 |
1 |
2 |
5 |
2 |
0 |
| ODI |
0 |
0 |
0 |
9 |
6 |
17 |
17 |
0 |
| CDI |
0 |
0 |
0 |
12 |
36 |
99 |
234 |
0 |
| VCDI |
0 |
4 |
3 |
61 |
248 |
1391 |
12098 |
31621 |
|
|
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 |
2 |
1 |
0 |
| VODI |
0 |
0 |
0 |
1 |
3 |
8 |
5 |
0 |
| ODI |
0 |
0 |
0 |
3 |
5 |
10 |
35 |
0 |
| CDI |
0 |
0 |
0 |
18 |
35 |
99 |
273 |
2 |
| VCDI |
0 |
4 |
3 |
61 |
249 |
1393 |
12037 |
31619 |
|
Date: 2024-04-12:
| 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 |
6 |
5 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
3 |
17 |
23 |
28 |
0 |
| CDI |
0 |
1 |
0 |
12 |
51 |
175 |
215 |
0 |
| VCDI |
0 |
3 |
12 |
42 |
389 |
1944 |
14258 |
28682 |
|
|
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 |
2 |
0 |
| ODI |
0 |
0 |
0 |
5 |
3 |
7 |
38 |
0 |
| CDI |
0 |
0 |
0 |
13 |
43 |
146 |
365 |
1 |
| VCDI |
0 |
4 |
12 |
45 |
416 |
1988 |
14096 |
28681 |
|
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