Validation of sea ice concentration - American sector
Bulletin date: 2020-04-30
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2020-04-24:
| 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 |
15 |
54 |
5 |
0 |
0 |
| ODI |
0 |
0 |
0 |
46 |
58 |
33 |
9 |
0 |
| CDI |
0 |
0 |
0 |
45 |
74 |
189 |
109 |
16 |
| VCDI |
0 |
0 |
0 |
15 |
207 |
1446 |
9090 |
34455 |
|
...date precedes bulletin
|
Date: 2020-04-26:
| 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 |
3 |
38 |
1 |
0 |
0 |
| VODI |
0 |
10 |
4 |
33 |
53 |
27 |
3 |
0 |
| ODI |
0 |
16 |
0 |
22 |
33 |
65 |
16 |
0 |
| CDI |
0 |
14 |
2 |
27 |
75 |
230 |
162 |
45 |
| VCDI |
0 |
1 |
2 |
33 |
282 |
1674 |
10667 |
32328 |
|
...date precedes bulletin
|
Date: 2020-04-28:
| 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 |
1 |
0 |
0 |
0 |
| OW |
0 |
3 |
0 |
23 |
61 |
0 |
0 |
0 |
| VODI |
0 |
33 |
9 |
58 |
64 |
42 |
22 |
0 |
| ODI |
0 |
0 |
0 |
36 |
59 |
159 |
105 |
3 |
| CDI |
0 |
0 |
0 |
20 |
179 |
477 |
317 |
5 |
| VCDI |
0 |
0 |
0 |
0 |
113 |
1650 |
9715 |
32712 |
|
...date precedes bulletin
|
Date: 2020-04-30:
| 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 |
19 |
0 |
0 |
0 |
| OW |
0 |
39 |
4 |
39 |
52 |
2 |
1 |
0 |
| VODI |
0 |
3 |
6 |
44 |
54 |
51 |
22 |
0 |
| ODI |
0 |
0 |
0 |
34 |
109 |
199 |
93 |
6 |
| CDI |
0 |
0 |
0 |
3 |
175 |
561 |
565 |
122 |
| VCDI |
0 |
0 |
0 |
0 |
43 |
2255 |
11170 |
30195 |
|
|
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 |
7 |
26 |
0 |
0 |
0 |
| OW |
0 |
35 |
4 |
32 |
42 |
3 |
1 |
0 |
| VODI |
0 |
7 |
6 |
45 |
57 |
48 |
27 |
0 |
| ODI |
0 |
0 |
0 |
34 |
97 |
191 |
74 |
0 |
| CDI |
0 |
0 |
0 |
2 |
183 |
583 |
570 |
86 |
| VCDI |
0 |
0 |
0 |
0 |
47 |
2243 |
11179 |
30237 |
|
Date: 2020-05-02:
| 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 |
44 |
4 |
0 |
0 |
0 |
| OW |
0 |
65 |
6 |
64 |
41 |
0 |
5 |
0 |
| VODI |
0 |
35 |
6 |
43 |
78 |
35 |
30 |
0 |
| ODI |
0 |
2 |
0 |
66 |
101 |
228 |
67 |
0 |
| CDI |
0 |
0 |
0 |
12 |
108 |
591 |
501 |
62 |
| VCDI |
0 |
0 |
0 |
0 |
106 |
2139 |
10826 |
30601 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
2 |
1 |
63 |
7 |
0 |
0 |
0 |
| OW |
0 |
61 |
4 |
52 |
30 |
0 |
8 |
0 |
| VODI |
0 |
37 |
7 |
39 |
83 |
24 |
33 |
0 |
| ODI |
0 |
2 |
0 |
64 |
115 |
253 |
78 |
0 |
| CDI |
0 |
0 |
0 |
11 |
103 |
551 |
432 |
10 |
| VCDI |
0 |
0 |
0 |
0 |
100 |
2165 |
10878 |
30653 |
|
Date: 2020-05-04:
| 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 |
31 |
1 |
25 |
3 |
0 |
0 |
0 |
| OW |
0 |
97 |
23 |
94 |
23 |
0 |
0 |
0 |
| VODI |
0 |
20 |
10 |
91 |
49 |
9 |
8 |
0 |
| ODI |
0 |
1 |
1 |
26 |
191 |
66 |
22 |
0 |
| CDI |
0 |
0 |
0 |
3 |
184 |
450 |
302 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
240 |
1525 |
10205 |
32166 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
25 |
1 |
31 |
22 |
0 |
2 |
0 |
| OW |
0 |
20 |
4 |
59 |
26 |
7 |
8 |
0 |
| VODI |
0 |
100 |
25 |
54 |
57 |
42 |
44 |
0 |
| ODI |
0 |
4 |
5 |
77 |
99 |
121 |
147 |
0 |
| CDI |
0 |
0 |
0 |
17 |
208 |
364 |
350 |
7 |
| VCDI |
0 |
0 |
0 |
1 |
278 |
1516 |
9986 |
32159 |
|
Date: 2020-05-06:
| 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 |
34 |
3 |
35 |
3 |
0 |
0 |
0 |
| OW |
0 |
55 |
13 |
133 |
56 |
3 |
3 |
0 |
| VODI |
0 |
3 |
2 |
87 |
45 |
31 |
13 |
0 |
| ODI |
0 |
0 |
0 |
19 |
192 |
96 |
39 |
0 |
| CDI |
0 |
0 |
0 |
2 |
188 |
493 |
298 |
14 |
| VCDI |
0 |
0 |
0 |
0 |
263 |
2224 |
9741 |
31778 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
18 |
2 |
17 |
14 |
0 |
7 |
0 |
| OW |
0 |
18 |
2 |
33 |
33 |
15 |
15 |
0 |
| VODI |
0 |
54 |
11 |
106 |
61 |
58 |
103 |
0 |
| ODI |
0 |
2 |
3 |
92 |
146 |
111 |
124 |
2 |
| CDI |
0 |
0 |
0 |
28 |
197 |
516 |
259 |
81 |
| VCDI |
0 |
0 |
0 |
0 |
296 |
2147 |
9586 |
31709 |
|
Date: 2020-05-08:
| 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 |
6 |
2 |
59 |
6 |
0 |
0 |
0 |
| OW |
0 |
112 |
16 |
100 |
86 |
2 |
7 |
0 |
| VODI |
0 |
13 |
3 |
54 |
99 |
78 |
14 |
0 |
| ODI |
0 |
0 |
0 |
27 |
175 |
125 |
32 |
0 |
| CDI |
0 |
0 |
0 |
2 |
340 |
637 |
335 |
62 |
| VCDI |
0 |
0 |
0 |
0 |
331 |
2964 |
10716 |
29463 |
|
|
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 |
24 |
45 |
0 |
16 |
0 |
| OW |
0 |
0 |
0 |
28 |
59 |
21 |
54 |
0 |
| VODI |
0 |
80 |
10 |
83 |
64 |
119 |
113 |
0 |
| ODI |
0 |
45 |
9 |
69 |
184 |
283 |
110 |
0 |
| CDI |
0 |
6 |
2 |
35 |
251 |
600 |
291 |
7 |
| VCDI |
0 |
0 |
0 |
3 |
434 |
2783 |
10520 |
29518 |
|
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