Validation of sea ice concentration - American sector
Bulletin date: 2022-03-24
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2022-03-18:
| 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 |
4 |
3 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
41 |
100 |
2 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
294 |
1355 |
9780 |
34284 |
|
...date precedes bulletin
|
Date: 2022-03-20:
| 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 |
0 |
2 |
17 |
1 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
189 |
1262 |
10559 |
33836 |
|
...date precedes bulletin
|
Date: 2022-03-22:
| 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 |
1 |
0 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
8 |
9 |
20 |
15 |
0 |
| VCDI |
0 |
0 |
0 |
11 |
241 |
1297 |
12107 |
32157 |
|
...date precedes bulletin
|
Date: 2022-03-24:
| 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 |
7 |
15 |
12 |
0 |
| CDI |
0 |
0 |
0 |
0 |
41 |
196 |
146 |
0 |
| VCDI |
0 |
0 |
0 |
15 |
224 |
1701 |
14497 |
29012 |
|
|
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 |
6 |
20 |
11 |
0 |
| CDI |
0 |
0 |
0 |
0 |
39 |
199 |
156 |
0 |
| VCDI |
0 |
0 |
0 |
15 |
227 |
1693 |
14488 |
29012 |
|
Date: 2022-03-26:
| 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 |
13 |
3 |
0 |
0 |
| CDI |
0 |
0 |
1 |
9 |
112 |
107 |
45 |
0 |
| VCDI |
0 |
0 |
0 |
16 |
382 |
2495 |
14599 |
28084 |
|
|
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 |
9 |
2 |
0 |
0 |
| CDI |
0 |
0 |
1 |
9 |
111 |
106 |
55 |
0 |
| VCDI |
0 |
0 |
0 |
16 |
387 |
2497 |
14589 |
28084 |
|
Date: 2022-03-28:
| 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 |
5 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
3 |
13 |
17 |
0 |
0 |
| CDI |
0 |
3 |
0 |
7 |
162 |
147 |
18 |
11 |
| VCDI |
0 |
0 |
0 |
29 |
326 |
2174 |
15164 |
27787 |
|
|
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 |
8 |
10 |
0 |
0 |
| CDI |
0 |
3 |
0 |
7 |
61 |
142 |
57 |
53 |
| VCDI |
0 |
0 |
0 |
32 |
437 |
2186 |
15125 |
27745 |
|
Date: 2022-03-30:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
4 |
2 |
1 |
0 |
0 |
| ODI |
0 |
0 |
0 |
11 |
37 |
20 |
0 |
0 |
| CDI |
0 |
0 |
0 |
10 |
158 |
94 |
22 |
9 |
| VCDI |
0 |
2 |
0 |
40 |
411 |
1954 |
12810 |
30281 |
|
|
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 |
7 |
1 |
0 |
0 |
| CDI |
0 |
0 |
0 |
9 |
65 |
61 |
39 |
0 |
| VCDI |
0 |
2 |
0 |
50 |
536 |
2007 |
12793 |
30290 |
|
Date: 2022-04-01:
| 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 |
5 |
3 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
13 |
32 |
12 |
0 |
0 |
| CDI |
0 |
3 |
0 |
22 |
174 |
44 |
30 |
0 |
| VCDI |
0 |
0 |
0 |
37 |
436 |
1904 |
19370 |
23781 |
|
|
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 |
3 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
5 |
9 |
2 |
0 |
0 |
| ODI |
0 |
0 |
0 |
11 |
27 |
2 |
0 |
0 |
| CDI |
0 |
0 |
0 |
11 |
90 |
28 |
35 |
0 |
| VCDI |
0 |
3 |
0 |
50 |
516 |
1928 |
19365 |
23781 |
|
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