Validation of sea ice concentration
Bulletin date: 2020-09-10
Model vs. observations, sea ice class contingency tables
Date: 2020-09-04:
| 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 |
24886 |
6839 |
582 |
445 |
132 |
2 |
1 |
0 |
| OW |
0 |
71 |
100 |
181 |
168 |
33 |
11 |
0 |
| VODI |
0 |
3 |
52 |
119 |
260 |
202 |
114 |
0 |
| ODI |
0 |
0 |
2 |
36 |
91 |
370 |
708 |
2 |
| CDI |
0 |
0 |
0 |
5 |
13 |
48 |
1919 |
751 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
4 |
9 |
0 |
|
...date precedes bulletin
|
Date: 2020-09-08:
| 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 |
24772 |
6854 |
667 |
447 |
168 |
15 |
4 |
0 |
| OW |
0 |
31 |
87 |
119 |
221 |
15 |
7 |
0 |
| VODI |
0 |
3 |
68 |
122 |
231 |
98 |
28 |
0 |
| ODI |
0 |
0 |
2 |
39 |
255 |
409 |
213 |
0 |
| CDI |
0 |
0 |
0 |
2 |
34 |
442 |
1883 |
235 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
4 |
412 |
272 |
|
...date precedes bulletin
|
Date: 2020-09-10:
| 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 |
24721 |
6831 |
761 |
306 |
140 |
37 |
12 |
0 |
| OW |
0 |
47 |
151 |
111 |
150 |
27 |
15 |
0 |
| VODI |
0 |
4 |
108 |
133 |
178 |
77 |
33 |
0 |
| ODI |
0 |
0 |
9 |
75 |
163 |
358 |
130 |
0 |
| CDI |
0 |
0 |
0 |
10 |
41 |
435 |
1924 |
78 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
2 |
579 |
513 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24721 |
6858 |
802 |
353 |
199 |
38 |
17 |
0 |
| OW |
0 |
24 |
128 |
84 |
111 |
23 |
13 |
0 |
| VODI |
0 |
0 |
92 |
114 |
162 |
87 |
23 |
0 |
| ODI |
0 |
0 |
5 |
72 |
163 |
329 |
134 |
0 |
| CDI |
0 |
0 |
2 |
12 |
37 |
456 |
1845 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
3 |
661 |
591 |
|
Date: 2020-09-14:
| 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 |
24855 |
6841 |
684 |
330 |
67 |
1 |
0 |
0 |
| OW |
0 |
42 |
118 |
152 |
171 |
8 |
0 |
0 |
| VODI |
0 |
12 |
32 |
178 |
233 |
50 |
9 |
0 |
| ODI |
0 |
0 |
1 |
54 |
194 |
198 |
121 |
0 |
| CDI |
0 |
0 |
0 |
5 |
64 |
373 |
1062 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
104 |
1510 |
689 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24855 |
6791 |
636 |
355 |
112 |
6 |
0 |
0 |
| OW |
0 |
73 |
84 |
118 |
140 |
15 |
1 |
0 |
| VODI |
0 |
30 |
92 |
118 |
163 |
59 |
17 |
0 |
| ODI |
0 |
1 |
23 |
115 |
167 |
118 |
66 |
0 |
| CDI |
0 |
0 |
0 |
13 |
130 |
187 |
618 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
18 |
349 |
2000 |
689 |
|
Date: 2020-09-16:
| 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 |
24732 |
6804 |
561 |
443 |
82 |
5 |
0 |
0 |
| OW |
0 |
50 |
63 |
228 |
143 |
7 |
0 |
0 |
| VODI |
0 |
12 |
22 |
222 |
179 |
60 |
14 |
0 |
| ODI |
0 |
0 |
0 |
54 |
174 |
161 |
128 |
0 |
| CDI |
0 |
0 |
0 |
7 |
63 |
143 |
674 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
2 |
336 |
1935 |
854 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24732 |
6755 |
530 |
450 |
80 |
7 |
0 |
0 |
| OW |
0 |
67 |
44 |
206 |
102 |
13 |
0 |
0 |
| VODI |
0 |
42 |
47 |
172 |
165 |
47 |
9 |
0 |
| ODI |
0 |
2 |
23 |
101 |
168 |
124 |
102 |
0 |
| CDI |
0 |
0 |
2 |
23 |
110 |
120 |
467 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
18 |
401 |
2173 |
854 |
|
Date: 2020-09-18:
| 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 |
24232 |
6901 |
843 |
430 |
90 |
13 |
0 |
0 |
| OW |
0 |
33 |
116 |
157 |
147 |
24 |
4 |
0 |
| VODI |
0 |
4 |
66 |
109 |
247 |
115 |
26 |
0 |
| ODI |
0 |
0 |
21 |
44 |
101 |
198 |
137 |
0 |
| CDI |
0 |
0 |
1 |
5 |
40 |
173 |
493 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
11 |
58 |
1914 |
1405 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24232 |
6839 |
758 |
423 |
114 |
13 |
0 |
0 |
| OW |
0 |
53 |
103 |
106 |
92 |
27 |
2 |
0 |
| VODI |
0 |
29 |
116 |
112 |
192 |
78 |
16 |
0 |
| ODI |
0 |
15 |
31 |
74 |
137 |
146 |
78 |
0 |
| CDI |
0 |
2 |
37 |
26 |
78 |
238 |
345 |
0 |
| VCDI |
0 |
0 |
2 |
5 |
23 |
79 |
2133 |
1405 |
|
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