Validation of sea ice concentration - American sector
Bulletin date: 2020-04-23
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2020-04-17:
| 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 |
1 |
1 |
0 |
| VODI |
0 |
0 |
0 |
5 |
3 |
26 |
16 |
0 |
| ODI |
0 |
0 |
0 |
24 |
61 |
128 |
34 |
2 |
| CDI |
0 |
0 |
0 |
17 |
136 |
494 |
165 |
59 |
| VCDI |
0 |
0 |
0 |
0 |
260 |
1698 |
10098 |
32638 |
|
...date precedes bulletin
|
Date: 2020-04-19:
| 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 |
5 |
0 |
| VODI |
0 |
0 |
0 |
0 |
0 |
1 |
11 |
0 |
| ODI |
0 |
0 |
0 |
0 |
6 |
101 |
30 |
0 |
| CDI |
0 |
0 |
0 |
0 |
81 |
342 |
172 |
2 |
| VCDI |
0 |
0 |
0 |
0 |
184 |
1518 |
9111 |
34302 |
|
...date precedes bulletin
|
Date: 2020-04-21:
| 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 |
14 |
0 |
3 |
0 |
| ODI |
0 |
0 |
0 |
0 |
40 |
59 |
11 |
0 |
| CDI |
0 |
0 |
0 |
0 |
50 |
439 |
221 |
5 |
| VCDI |
0 |
0 |
0 |
0 |
16 |
1103 |
8138 |
35767 |
|
...date precedes bulletin
|
Date: 2020-04-23:
| 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 |
30 |
2 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
92 |
29 |
6 |
0 |
| CDI |
0 |
0 |
0 |
0 |
123 |
167 |
116 |
55 |
| VCDI |
0 |
0 |
0 |
0 |
154 |
1498 |
9374 |
34220 |
|
|
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 |
13 |
1 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
81 |
25 |
5 |
0 |
| CDI |
0 |
0 |
0 |
0 |
130 |
136 |
116 |
56 |
| VCDI |
0 |
0 |
0 |
0 |
175 |
1534 |
9375 |
34219 |
|
Date: 2020-04-25:
| 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 |
18 |
0 |
0 |
0 |
| VODI |
0 |
1 |
2 |
40 |
63 |
19 |
2 |
0 |
| ODI |
0 |
7 |
1 |
39 |
40 |
65 |
7 |
0 |
| CDI |
0 |
1 |
1 |
45 |
87 |
163 |
63 |
1 |
| VCDI |
0 |
0 |
0 |
30 |
276 |
1667 |
9674 |
33554 |
|
|
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 |
0 |
0 |
0 |
| VODI |
0 |
1 |
2 |
34 |
59 |
10 |
2 |
0 |
| ODI |
0 |
7 |
1 |
40 |
47 |
55 |
5 |
0 |
| CDI |
0 |
1 |
1 |
41 |
89 |
158 |
48 |
2 |
| VCDI |
0 |
0 |
0 |
39 |
288 |
1691 |
9691 |
33553 |
|
Date: 2020-04-27:
| 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 |
14 |
1 |
31 |
43 |
0 |
0 |
0 |
| VODI |
0 |
15 |
5 |
59 |
63 |
7 |
4 |
0 |
| ODI |
0 |
2 |
2 |
22 |
112 |
180 |
47 |
0 |
| CDI |
0 |
0 |
0 |
4 |
123 |
398 |
161 |
5 |
| VCDI |
0 |
0 |
0 |
0 |
148 |
1716 |
9852 |
32852 |
|
|
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 |
7 |
0 |
0 |
0 |
| VODI |
0 |
1 |
2 |
28 |
59 |
18 |
7 |
0 |
| ODI |
0 |
20 |
2 |
37 |
57 |
159 |
50 |
0 |
| CDI |
0 |
10 |
4 |
40 |
89 |
289 |
209 |
13 |
| VCDI |
0 |
0 |
0 |
11 |
277 |
1835 |
9798 |
32844 |
|
Date: 2020-04-29:
| 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 |
1 |
15 |
0 |
0 |
0 |
| OW |
0 |
29 |
5 |
38 |
51 |
0 |
0 |
0 |
| VODI |
0 |
22 |
3 |
38 |
53 |
40 |
9 |
4 |
| ODI |
0 |
1 |
1 |
31 |
65 |
156 |
41 |
75 |
| CDI |
0 |
0 |
0 |
6 |
171 |
477 |
239 |
242 |
| VCDI |
0 |
0 |
0 |
0 |
103 |
1883 |
8216 |
33851 |
|
|
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 |
4 |
0 |
0 |
0 |
| VODI |
0 |
9 |
4 |
9 |
56 |
27 |
3 |
48 |
| ODI |
0 |
34 |
1 |
27 |
56 |
124 |
58 |
119 |
| CDI |
0 |
9 |
4 |
68 |
144 |
461 |
348 |
213 |
| VCDI |
0 |
0 |
0 |
10 |
198 |
1944 |
8096 |
33792 |
|
Date: 2020-05-01:
| 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 |
21 |
9 |
0 |
0 |
0 |
| OW |
0 |
40 |
6 |
62 |
34 |
0 |
2 |
0 |
| VODI |
0 |
6 |
6 |
56 |
56 |
43 |
23 |
0 |
| ODI |
0 |
0 |
0 |
20 |
147 |
271 |
69 |
0 |
| CDI |
0 |
0 |
0 |
1 |
132 |
725 |
579 |
83 |
| VCDI |
0 |
0 |
0 |
0 |
64 |
2003 |
11722 |
29686 |
|
|
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 |
17 |
5 |
38 |
46 |
49 |
16 |
0 |
| ODI |
0 |
29 |
7 |
75 |
53 |
268 |
99 |
20 |
| CDI |
0 |
0 |
0 |
47 |
279 |
634 |
729 |
134 |
| VCDI |
0 |
0 |
0 |
0 |
64 |
2091 |
11551 |
29615 |
|
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