Validation of sea ice concentration
Bulletin date: 2017-09-28
Model vs. observations, sea ice class contingency tables
Date: 2017-09-22:
| 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 |
24991 |
5496 |
612 |
443 |
111 |
16 |
0 |
0 |
| OW |
0 |
2 |
51 |
142 |
87 |
19 |
1 |
0 |
| VODI |
0 |
0 |
25 |
109 |
157 |
63 |
12 |
0 |
| ODI |
0 |
0 |
4 |
56 |
125 |
150 |
80 |
0 |
| CDI |
0 |
0 |
0 |
9 |
55 |
362 |
387 |
2 |
| VCDI |
0 |
0 |
0 |
0 |
21 |
267 |
2129 |
2175 |
|
...date precedes bulletin
|
Date: 2017-09-26:
| 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 |
25484 |
5027 |
492 |
387 |
225 |
59 |
0 |
0 |
| OW |
0 |
0 |
23 |
46 |
88 |
70 |
0 |
0 |
| VODI |
0 |
0 |
12 |
28 |
80 |
141 |
32 |
0 |
| ODI |
0 |
0 |
3 |
8 |
32 |
146 |
120 |
0 |
| CDI |
0 |
0 |
0 |
2 |
31 |
283 |
463 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
247 |
2270 |
2356 |
|
...date precedes bulletin
|
Date: 2017-09-28:
| 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 |
24397 |
5848 |
797 |
386 |
130 |
53 |
1 |
0 |
| OW |
0 |
0 |
32 |
71 |
87 |
54 |
6 |
0 |
| VODI |
0 |
0 |
5 |
60 |
82 |
114 |
31 |
0 |
| ODI |
0 |
0 |
5 |
5 |
41 |
136 |
115 |
0 |
| CDI |
0 |
0 |
0 |
3 |
9 |
168 |
582 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
221 |
2384 |
2335 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24397 |
5847 |
776 |
372 |
135 |
56 |
1 |
0 |
| OW |
0 |
1 |
53 |
87 |
96 |
59 |
8 |
0 |
| VODI |
0 |
0 |
5 |
51 |
71 |
132 |
36 |
0 |
| ODI |
0 |
0 |
4 |
12 |
39 |
124 |
102 |
0 |
| CDI |
0 |
0 |
1 |
3 |
8 |
148 |
604 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
227 |
2368 |
2335 |
|
Date: 2017-10-02:
| 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 |
24514 |
5917 |
842 |
401 |
100 |
17 |
4 |
0 |
| OW |
0 |
0 |
31 |
96 |
73 |
31 |
0 |
0 |
| VODI |
0 |
0 |
4 |
47 |
112 |
92 |
30 |
0 |
| ODI |
0 |
0 |
1 |
13 |
80 |
161 |
121 |
0 |
| CDI |
0 |
0 |
0 |
13 |
79 |
462 |
412 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
50 |
234 |
2268 |
1954 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24514 |
5887 |
751 |
339 |
96 |
23 |
5 |
0 |
| OW |
0 |
30 |
91 |
116 |
52 |
38 |
1 |
0 |
| VODI |
0 |
0 |
33 |
70 |
103 |
74 |
16 |
0 |
| ODI |
0 |
0 |
3 |
26 |
69 |
101 |
66 |
0 |
| CDI |
0 |
0 |
0 |
17 |
97 |
330 |
187 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
77 |
431 |
2560 |
1954 |
|
Date: 2017-10-04:
| 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 |
24448 |
5941 |
821 |
391 |
139 |
26 |
8 |
0 |
| OW |
0 |
1 |
35 |
74 |
73 |
46 |
6 |
0 |
| VODI |
0 |
0 |
8 |
44 |
76 |
111 |
42 |
0 |
| ODI |
0 |
0 |
0 |
18 |
45 |
106 |
107 |
0 |
| CDI |
0 |
0 |
0 |
2 |
48 |
259 |
433 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
36 |
223 |
2460 |
2132 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24448 |
5885 |
759 |
332 |
127 |
36 |
8 |
0 |
| OW |
0 |
51 |
72 |
76 |
61 |
59 |
5 |
0 |
| VODI |
0 |
6 |
26 |
82 |
86 |
91 |
41 |
0 |
| ODI |
0 |
0 |
7 |
27 |
44 |
102 |
105 |
0 |
| CDI |
0 |
0 |
0 |
12 |
52 |
255 |
421 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
47 |
228 |
2476 |
2132 |
|
Date: 2017-10-06:
| 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 |
24748 |
5522 |
729 |
335 |
133 |
42 |
5 |
0 |
| OW |
0 |
10 |
53 |
89 |
39 |
46 |
10 |
0 |
| VODI |
0 |
0 |
28 |
72 |
71 |
92 |
23 |
0 |
| ODI |
0 |
0 |
0 |
13 |
49 |
109 |
79 |
0 |
| CDI |
0 |
0 |
0 |
12 |
35 |
147 |
264 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
34 |
260 |
2521 |
2588 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24748 |
5527 |
701 |
336 |
137 |
86 |
18 |
0 |
| OW |
0 |
5 |
87 |
96 |
51 |
75 |
31 |
0 |
| VODI |
0 |
0 |
21 |
55 |
70 |
106 |
109 |
0 |
| ODI |
0 |
0 |
1 |
14 |
30 |
77 |
162 |
0 |
| CDI |
0 |
0 |
0 |
17 |
29 |
121 |
383 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
44 |
231 |
2199 |
2588 |
|
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