Validation of sea ice concentration - American sector
Bulletin date: 2022-03-31
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2022-03-25:
| 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 |
22 |
10 |
0 |
| CDI |
0 |
0 |
0 |
1 |
44 |
231 |
155 |
0 |
| VCDI |
0 |
0 |
0 |
20 |
227 |
2219 |
15530 |
27404 |
|
...date precedes bulletin
|
Date: 2022-03-27:
| 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 |
15 |
6 |
0 |
0 |
| CDI |
0 |
3 |
0 |
10 |
104 |
93 |
26 |
0 |
| VCDI |
0 |
0 |
0 |
25 |
362 |
2433 |
14851 |
27938 |
|
...date precedes bulletin
|
Date: 2022-03-29:
| 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 |
1 |
4 |
5 |
0 |
0 |
0 |
| ODI |
0 |
0 |
1 |
20 |
33 |
14 |
0 |
0 |
| CDI |
0 |
2 |
0 |
17 |
133 |
104 |
26 |
38 |
| VCDI |
0 |
0 |
0 |
33 |
385 |
2227 |
14611 |
28212 |
|
...date precedes bulletin
|
Date: 2022-03-31:
| 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 |
0 |
3 |
2 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
8 |
26 |
13 |
0 |
0 |
| CDI |
0 |
2 |
0 |
10 |
169 |
108 |
26 |
0 |
| VCDI |
0 |
0 |
1 |
41 |
410 |
1653 |
16400 |
26994 |
|
|
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 |
3 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
7 |
28 |
18 |
0 |
0 |
| CDI |
0 |
1 |
0 |
10 |
174 |
106 |
18 |
0 |
| VCDI |
0 |
1 |
1 |
42 |
402 |
1650 |
16408 |
26994 |
|
Date: 2022-04-02:
| 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 |
3 |
8 |
11 |
1 |
0 |
0 |
| ODI |
0 |
0 |
0 |
33 |
37 |
12 |
0 |
0 |
| CDI |
0 |
0 |
0 |
34 |
154 |
68 |
33 |
0 |
| VCDI |
0 |
0 |
1 |
45 |
541 |
1642 |
20002 |
23240 |
|
|
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 |
3 |
6 |
13 |
3 |
0 |
0 |
| ODI |
0 |
0 |
0 |
34 |
42 |
10 |
0 |
0 |
| CDI |
0 |
0 |
0 |
30 |
148 |
72 |
28 |
0 |
| VCDI |
0 |
0 |
1 |
50 |
540 |
1638 |
20007 |
23240 |
|
Date: 2022-04-04:
| 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 |
10 |
15 |
2 |
0 |
0 |
| ODI |
0 |
0 |
0 |
19 |
89 |
44 |
3 |
0 |
| CDI |
0 |
0 |
0 |
57 |
306 |
188 |
31 |
0 |
| VCDI |
0 |
0 |
0 |
8 |
255 |
1637 |
16352 |
26850 |
|
|
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 |
9 |
1 |
0 |
0 |
| ODI |
0 |
0 |
0 |
15 |
45 |
22 |
2 |
0 |
| CDI |
0 |
0 |
0 |
25 |
182 |
104 |
47 |
0 |
| VCDI |
0 |
0 |
0 |
53 |
429 |
1744 |
16337 |
26850 |
|
Date: 2022-04-06:
| 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 |
7 |
9 |
11 |
0 |
0 |
| ODI |
0 |
0 |
0 |
9 |
32 |
8 |
6 |
0 |
| CDI |
0 |
0 |
1 |
40 |
93 |
58 |
141 |
1 |
| VCDI |
0 |
0 |
0 |
42 |
220 |
1684 |
14134 |
29370 |
|
|
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 |
0 |
0 |
| VODI |
0 |
0 |
0 |
5 |
7 |
8 |
0 |
0 |
| ODI |
0 |
0 |
0 |
8 |
20 |
9 |
7 |
0 |
| CDI |
0 |
0 |
1 |
20 |
32 |
21 |
216 |
2 |
| VCDI |
0 |
0 |
0 |
65 |
295 |
1721 |
14058 |
29369 |
|
Date: 2022-04-08:
| 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 |
2 |
15 |
9 |
0 |
0 |
| ODI |
0 |
0 |
1 |
2 |
13 |
26 |
0 |
0 |
| CDI |
0 |
1 |
14 |
18 |
72 |
132 |
120 |
1 |
| VCDI |
0 |
0 |
5 |
70 |
245 |
1136 |
14844 |
29140 |
|
|
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 |
1 |
1 |
0 |
0 |
| VODI |
0 |
0 |
0 |
1 |
7 |
7 |
0 |
0 |
| ODI |
0 |
1 |
1 |
3 |
13 |
13 |
16 |
0 |
| CDI |
0 |
0 |
9 |
9 |
25 |
83 |
178 |
0 |
| VCDI |
0 |
0 |
10 |
79 |
299 |
1199 |
14770 |
29141 |
|
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