Validation of sea ice concentration
Bulletin date: 2018-09-06
Model vs. observations, sea ice class contingency tables
Date: 2018-08-31:
| 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 |
26194 |
5384 |
599 |
459 |
56 |
45 |
22 |
0 |
| OW |
0 |
22 |
62 |
148 |
102 |
25 |
15 |
0 |
| VODI |
0 |
1 |
37 |
126 |
190 |
91 |
72 |
0 |
| ODI |
0 |
0 |
2 |
47 |
123 |
195 |
254 |
0 |
| CDI |
0 |
0 |
0 |
2 |
16 |
146 |
2261 |
715 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
176 |
572 |
|
...date precedes bulletin
|
Date: 2018-09-04:
| 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 |
25202 |
6210 |
800 |
362 |
83 |
29 |
20 |
0 |
| OW |
0 |
16 |
49 |
105 |
87 |
14 |
5 |
0 |
| VODI |
0 |
1 |
21 |
117 |
175 |
64 |
24 |
0 |
| ODI |
0 |
0 |
0 |
50 |
165 |
169 |
100 |
0 |
| CDI |
0 |
0 |
0 |
3 |
30 |
155 |
1512 |
313 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
8 |
924 |
1343 |
|
...date precedes bulletin
|
Date: 2018-09-06:
| 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 |
24664 |
6523 |
842 |
443 |
71 |
17 |
6 |
0 |
| OW |
0 |
22 |
33 |
133 |
68 |
12 |
6 |
0 |
| VODI |
0 |
4 |
15 |
151 |
156 |
49 |
20 |
0 |
| ODI |
0 |
0 |
2 |
85 |
154 |
122 |
92 |
0 |
| CDI |
0 |
0 |
0 |
2 |
46 |
151 |
1453 |
195 |
| VCDI |
0 |
0 |
0 |
0 |
8 |
15 |
974 |
1625 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24664 |
6533 |
853 |
476 |
76 |
16 |
6 |
0 |
| OW |
0 |
14 |
23 |
117 |
65 |
19 |
6 |
0 |
| VODI |
0 |
2 |
15 |
140 |
165 |
48 |
22 |
0 |
| ODI |
0 |
0 |
1 |
69 |
153 |
125 |
99 |
0 |
| CDI |
0 |
0 |
0 |
12 |
34 |
140 |
1274 |
105 |
| VCDI |
0 |
0 |
0 |
0 |
10 |
18 |
1144 |
1715 |
|
Date: 2018-09-10:
| 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 |
24934 |
5778 |
1078 |
450 |
108 |
36 |
7 |
0 |
| OW |
0 |
0 |
50 |
73 |
78 |
31 |
4 |
0 |
| VODI |
0 |
0 |
20 |
93 |
100 |
96 |
20 |
0 |
| ODI |
0 |
0 |
1 |
80 |
106 |
220 |
222 |
0 |
| CDI |
0 |
0 |
0 |
6 |
29 |
79 |
1317 |
373 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
45 |
1018 |
1707 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24934 |
5778 |
1087 |
463 |
146 |
54 |
10 |
0 |
| OW |
0 |
0 |
49 |
66 |
53 |
40 |
8 |
0 |
| VODI |
0 |
0 |
11 |
97 |
102 |
116 |
28 |
0 |
| ODI |
0 |
0 |
2 |
66 |
81 |
151 |
166 |
0 |
| CDI |
0 |
0 |
0 |
10 |
39 |
85 |
1094 |
24 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
61 |
1282 |
2056 |
|
Date: 2018-09-12:
| 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 |
25059 |
5931 |
909 |
386 |
89 |
28 |
13 |
0 |
| OW |
0 |
5 |
50 |
71 |
56 |
38 |
9 |
0 |
| VODI |
0 |
0 |
26 |
71 |
80 |
94 |
31 |
0 |
| ODI |
0 |
0 |
8 |
71 |
120 |
162 |
142 |
0 |
| CDI |
0 |
0 |
0 |
12 |
85 |
185 |
1218 |
21 |
| VCDI |
0 |
0 |
0 |
0 |
12 |
42 |
1239 |
1896 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
25059 |
5929 |
915 |
415 |
110 |
62 |
35 |
0 |
| OW |
0 |
6 |
43 |
55 |
46 |
34 |
23 |
0 |
| VODI |
0 |
1 |
23 |
58 |
91 |
89 |
46 |
0 |
| ODI |
0 |
0 |
10 |
64 |
91 |
149 |
125 |
0 |
| CDI |
0 |
0 |
2 |
16 |
85 |
162 |
921 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
19 |
53 |
1502 |
1917 |
|
Date: 2018-09-14:
| 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 |
25018 |
5646 |
1288 |
292 |
92 |
19 |
12 |
0 |
| OW |
0 |
0 |
72 |
69 |
59 |
21 |
4 |
0 |
| VODI |
0 |
0 |
23 |
85 |
95 |
69 |
3 |
0 |
| ODI |
0 |
0 |
6 |
41 |
132 |
177 |
69 |
0 |
| CDI |
0 |
0 |
1 |
9 |
57 |
213 |
664 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
39 |
98 |
1871 |
1915 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
25018 |
5639 |
1302 |
340 |
159 |
72 |
28 |
0 |
| OW |
0 |
7 |
50 |
53 |
31 |
44 |
24 |
0 |
| VODI |
0 |
0 |
37 |
66 |
81 |
62 |
49 |
0 |
| ODI |
0 |
0 |
1 |
30 |
91 |
140 |
130 |
0 |
| CDI |
0 |
0 |
0 |
7 |
78 |
199 |
921 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
34 |
80 |
1471 |
1915 |
|
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