Validation of sea ice concentration - American sector
Bulletin date: 2022-04-07
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
|
...date precedes bulletin
|
Date: 2022-04-03:
| 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 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
5 |
6 |
8 |
0 |
0 |
| ODI |
0 |
0 |
0 |
23 |
46 |
22 |
0 |
0 |
| CDI |
0 |
0 |
0 |
30 |
212 |
143 |
43 |
0 |
| VCDI |
0 |
0 |
0 |
36 |
489 |
1812 |
18141 |
24850 |
|
...date precedes bulletin
|
Date: 2022-04-05:
| 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 |
3 |
10 |
9 |
0 |
0 |
| ODI |
0 |
0 |
0 |
20 |
31 |
16 |
1 |
0 |
| CDI |
0 |
0 |
0 |
42 |
186 |
121 |
113 |
0 |
| VCDI |
0 |
0 |
0 |
20 |
236 |
1832 |
15533 |
27693 |
|
...date precedes bulletin
|
Date: 2022-04-07:
| 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 |
7 |
10 |
11 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
30 |
14 |
1 |
0 |
| CDI |
0 |
1 |
5 |
19 |
81 |
78 |
126 |
0 |
| VCDI |
0 |
0 |
1 |
59 |
218 |
1368 |
14830 |
29007 |
|
|
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 |
6 |
0 |
0 |
| VODI |
0 |
0 |
0 |
7 |
23 |
12 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
30 |
22 |
2 |
0 |
| CDI |
0 |
1 |
4 |
34 |
99 |
87 |
127 |
0 |
| VCDI |
0 |
0 |
2 |
44 |
184 |
1344 |
14828 |
29007 |
|
Date: 2022-04-09:
| 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 |
19 |
9 |
0 |
0 |
| ODI |
0 |
0 |
0 |
3 |
17 |
24 |
0 |
0 |
| CDI |
0 |
1 |
3 |
32 |
113 |
143 |
86 |
7 |
| VCDI |
0 |
0 |
1 |
59 |
240 |
1195 |
14715 |
29199 |
|
|
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 |
5 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
20 |
22 |
0 |
0 |
| ODI |
0 |
0 |
0 |
3 |
21 |
29 |
0 |
0 |
| CDI |
0 |
1 |
3 |
44 |
145 |
155 |
104 |
9 |
| VCDI |
0 |
0 |
1 |
47 |
198 |
1165 |
14697 |
29197 |
|
Date: 2022-04-11:
| 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 |
2 |
26 |
4 |
0 |
0 |
| ODI |
0 |
3 |
3 |
13 |
104 |
40 |
2 |
0 |
| CDI |
0 |
6 |
12 |
22 |
141 |
202 |
104 |
0 |
| VCDI |
0 |
0 |
5 |
49 |
129 |
1257 |
12198 |
31544 |
|
|
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 |
44 |
16 |
0 |
0 |
| ODI |
0 |
0 |
0 |
8 |
40 |
29 |
0 |
0 |
| CDI |
0 |
7 |
9 |
19 |
146 |
147 |
90 |
0 |
| VCDI |
0 |
2 |
11 |
59 |
170 |
1311 |
12214 |
31544 |
|
Date: 2022-04-13:
| 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 |
3 |
0 |
3 |
0 |
0 |
| VODI |
0 |
0 |
0 |
28 |
52 |
4 |
0 |
0 |
| ODI |
0 |
2 |
2 |
45 |
110 |
41 |
1 |
0 |
| CDI |
0 |
0 |
9 |
44 |
182 |
119 |
72 |
0 |
| VCDI |
0 |
3 |
1 |
70 |
205 |
1179 |
11389 |
32302 |
|
|
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 |
49 |
26 |
0 |
0 |
| ODI |
0 |
0 |
0 |
32 |
33 |
49 |
9 |
0 |
| CDI |
0 |
2 |
7 |
72 |
209 |
91 |
110 |
0 |
| VCDI |
0 |
3 |
5 |
82 |
258 |
1180 |
11343 |
32302 |
|
Date: 2022-04-15:
| 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 |
2 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
1 |
26 |
20 |
30 |
2 |
0 |
| ODI |
0 |
0 |
0 |
46 |
87 |
62 |
36 |
0 |
| CDI |
0 |
4 |
7 |
67 |
231 |
175 |
154 |
0 |
| VCDI |
0 |
1 |
19 |
94 |
359 |
1423 |
16735 |
26285 |
|
|
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 |
4 |
5 |
49 |
29 |
0 |
| ODI |
0 |
0 |
0 |
42 |
75 |
63 |
33 |
0 |
| CDI |
0 |
2 |
5 |
74 |
249 |
201 |
111 |
0 |
| VCDI |
0 |
3 |
21 |
115 |
368 |
1377 |
16754 |
26285 |
|
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