Validation of sea ice concentration
Bulletin date: 2018-09-27
Model vs. observations, sea ice class contingency tables
Date: 2018-09-21:
| 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 |
25593 |
5614 |
681 |
227 |
23 |
9 |
11 |
0 |
| OW |
0 |
7 |
83 |
106 |
25 |
4 |
9 |
0 |
| VODI |
0 |
0 |
48 |
119 |
50 |
32 |
12 |
0 |
| ODI |
0 |
0 |
13 |
72 |
96 |
57 |
41 |
0 |
| CDI |
0 |
0 |
5 |
37 |
143 |
179 |
322 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
7 |
180 |
2149 |
2203 |
|
...date precedes bulletin
|
Date: 2018-09-25:
| 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 |
25754 |
5725 |
438 |
212 |
36 |
4 |
1 |
0 |
| OW |
0 |
43 |
58 |
81 |
35 |
4 |
2 |
0 |
| VODI |
0 |
22 |
20 |
94 |
81 |
15 |
4 |
0 |
| ODI |
0 |
0 |
24 |
56 |
83 |
60 |
28 |
0 |
| CDI |
0 |
1 |
1 |
37 |
64 |
238 |
267 |
1 |
| VCDI |
0 |
0 |
1 |
10 |
12 |
112 |
1932 |
2603 |
|
...date precedes bulletin
|
Date: 2018-09-27:
| 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 |
25432 |
5780 |
382 |
269 |
70 |
2 |
1 |
0 |
| OW |
0 |
107 |
16 |
56 |
122 |
2 |
0 |
0 |
| VODI |
0 |
39 |
32 |
45 |
121 |
29 |
11 |
0 |
| ODI |
0 |
12 |
8 |
33 |
88 |
65 |
15 |
0 |
| CDI |
0 |
1 |
9 |
17 |
64 |
221 |
250 |
2 |
| VCDI |
0 |
0 |
0 |
2 |
16 |
192 |
1865 |
2783 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
25432 |
5805 |
380 |
270 |
65 |
3 |
1 |
0 |
| OW |
0 |
93 |
17 |
48 |
118 |
3 |
0 |
0 |
| VODI |
0 |
30 |
32 |
48 |
130 |
25 |
7 |
0 |
| ODI |
0 |
11 |
11 |
34 |
90 |
68 |
21 |
0 |
| CDI |
0 |
0 |
7 |
20 |
63 |
229 |
257 |
1 |
| VCDI |
0 |
0 |
0 |
2 |
15 |
183 |
1856 |
2784 |
|
Date: 2018-10-01:
| 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 |
24859 |
5801 |
732 |
266 |
126 |
42 |
1 |
0 |
| OW |
0 |
0 |
31 |
35 |
50 |
62 |
0 |
0 |
| VODI |
0 |
0 |
2 |
48 |
47 |
95 |
1 |
0 |
| ODI |
0 |
0 |
0 |
22 |
53 |
150 |
28 |
0 |
| CDI |
0 |
0 |
0 |
6 |
45 |
223 |
396 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
20 |
207 |
2056 |
2752 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24859 |
5753 |
653 |
242 |
124 |
124 |
1 |
0 |
| OW |
0 |
41 |
52 |
27 |
47 |
93 |
0 |
0 |
| VODI |
0 |
7 |
49 |
36 |
51 |
98 |
46 |
0 |
| ODI |
0 |
0 |
11 |
42 |
44 |
99 |
57 |
0 |
| CDI |
0 |
0 |
0 |
30 |
61 |
155 |
285 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
14 |
210 |
2093 |
2752 |
|
Date: 2018-10-03:
| 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 |
25006 |
5689 |
613 |
256 |
100 |
7 |
1 |
0 |
| OW |
0 |
9 |
71 |
46 |
52 |
33 |
2 |
0 |
| VODI |
0 |
0 |
28 |
63 |
43 |
65 |
6 |
0 |
| ODI |
0 |
0 |
4 |
41 |
43 |
88 |
48 |
0 |
| CDI |
0 |
0 |
0 |
19 |
37 |
125 |
279 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
12 |
205 |
2644 |
2523 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
25006 |
5621 |
603 |
260 |
125 |
34 |
2 |
0 |
| OW |
0 |
68 |
36 |
40 |
44 |
103 |
10 |
0 |
| VODI |
0 |
9 |
70 |
51 |
34 |
62 |
63 |
0 |
| ODI |
0 |
0 |
7 |
57 |
44 |
61 |
112 |
0 |
| CDI |
0 |
0 |
0 |
17 |
26 |
75 |
261 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
14 |
188 |
2532 |
2523 |
|
Date: 2018-10-05:
| 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 |
24534 |
6046 |
459 |
300 |
132 |
27 |
1 |
0 |
| OW |
0 |
3 |
45 |
46 |
90 |
31 |
5 |
0 |
| VODI |
0 |
0 |
15 |
41 |
73 |
74 |
7 |
0 |
| ODI |
0 |
0 |
2 |
14 |
51 |
75 |
73 |
1 |
| CDI |
0 |
0 |
0 |
7 |
31 |
127 |
303 |
3 |
| VCDI |
0 |
0 |
0 |
2 |
5 |
119 |
2598 |
2819 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24534 |
5995 |
440 |
311 |
221 |
77 |
24 |
0 |
| OW |
0 |
53 |
58 |
23 |
28 |
69 |
41 |
0 |
| VODI |
0 |
1 |
23 |
63 |
53 |
68 |
103 |
0 |
| ODI |
0 |
0 |
0 |
10 |
61 |
86 |
91 |
0 |
| CDI |
0 |
0 |
0 |
3 |
14 |
79 |
320 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
5 |
74 |
2408 |
2823 |
|
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