Validation of sea ice concentration
Bulletin date: 2018-10-18
Model vs. observations, sea ice class contingency tables
Date: 2018-10-12:
| 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 |
24256 |
5676 |
668 |
367 |
98 |
52 |
6 |
0 |
| OW |
0 |
2 |
29 |
57 |
72 |
35 |
4 |
0 |
| VODI |
0 |
0 |
7 |
38 |
63 |
66 |
33 |
0 |
| ODI |
0 |
0 |
1 |
13 |
41 |
73 |
57 |
0 |
| CDI |
0 |
0 |
0 |
5 |
28 |
157 |
266 |
6 |
| VCDI |
0 |
0 |
0 |
0 |
44 |
217 |
2708 |
3014 |
|
...date precedes bulletin
|
Date: 2018-10-16:
| 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 |
24542 |
5881 |
580 |
260 |
86 |
13 |
1 |
0 |
| OW |
0 |
20 |
109 |
74 |
44 |
7 |
3 |
0 |
| VODI |
0 |
4 |
54 |
71 |
62 |
30 |
19 |
0 |
| ODI |
0 |
0 |
10 |
35 |
63 |
67 |
65 |
0 |
| CDI |
0 |
0 |
1 |
12 |
75 |
136 |
235 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
117 |
316 |
2450 |
2712 |
|
...date precedes bulletin
|
Date: 2018-10-18:
| 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 |
24218 |
6185 |
426 |
253 |
99 |
38 |
1 |
0 |
| OW |
0 |
75 |
53 |
97 |
66 |
12 |
0 |
0 |
| VODI |
0 |
14 |
56 |
44 |
82 |
48 |
4 |
0 |
| ODI |
0 |
2 |
37 |
24 |
55 |
80 |
37 |
0 |
| CDI |
0 |
0 |
20 |
26 |
92 |
168 |
220 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
174 |
468 |
2034 |
2951 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24218 |
6159 |
429 |
257 |
94 |
36 |
1 |
0 |
| OW |
0 |
100 |
50 |
89 |
69 |
15 |
0 |
0 |
| VODI |
0 |
15 |
54 |
46 |
79 |
34 |
5 |
0 |
| ODI |
0 |
2 |
39 |
20 |
55 |
82 |
31 |
0 |
| CDI |
0 |
0 |
20 |
32 |
92 |
174 |
178 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
179 |
473 |
2081 |
2951 |
|
Date: 2018-10-22:
| 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 |
24163 |
6301 |
512 |
224 |
106 |
24 |
3 |
0 |
| OW |
6 |
38 |
65 |
102 |
63 |
17 |
3 |
0 |
| VODI |
0 |
5 |
34 |
71 |
106 |
59 |
27 |
0 |
| ODI |
0 |
0 |
16 |
34 |
73 |
38 |
76 |
0 |
| CDI |
0 |
0 |
5 |
32 |
63 |
65 |
164 |
1 |
| VCDI |
0 |
0 |
0 |
11 |
66 |
328 |
2705 |
2553 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24169 |
6244 |
427 |
172 |
104 |
34 |
6 |
0 |
| OW |
0 |
70 |
81 |
64 |
37 |
17 |
7 |
0 |
| VODI |
0 |
25 |
53 |
86 |
46 |
17 |
10 |
0 |
| ODI |
0 |
4 |
35 |
58 |
76 |
32 |
19 |
0 |
| CDI |
0 |
1 |
32 |
58 |
94 |
58 |
103 |
0 |
| VCDI |
0 |
0 |
4 |
36 |
120 |
373 |
2833 |
2554 |
|
Date: 2018-10-24:
| 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 |
23874 |
6314 |
668 |
221 |
79 |
47 |
35 |
0 |
| OW |
0 |
59 |
109 |
63 |
56 |
34 |
18 |
0 |
| VODI |
0 |
6 |
28 |
86 |
61 |
69 |
34 |
0 |
| ODI |
0 |
0 |
14 |
41 |
39 |
84 |
45 |
0 |
| CDI |
0 |
0 |
7 |
31 |
53 |
92 |
125 |
0 |
| VCDI |
0 |
0 |
5 |
22 |
63 |
310 |
2787 |
2580 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
23874 |
6264 |
646 |
162 |
56 |
41 |
39 |
0 |
| OW |
0 |
67 |
73 |
64 |
49 |
48 |
27 |
0 |
| VODI |
0 |
35 |
31 |
70 |
45 |
26 |
27 |
0 |
| ODI |
0 |
12 |
30 |
50 |
49 |
54 |
23 |
0 |
| CDI |
0 |
1 |
24 |
61 |
54 |
111 |
88 |
0 |
| VCDI |
0 |
0 |
27 |
57 |
98 |
356 |
2840 |
2580 |
|
Date: 2018-10-26:
| 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 |
23680 |
6007 |
612 |
216 |
20 |
30 |
42 |
0 |
| OW |
0 |
118 |
209 |
192 |
50 |
37 |
22 |
0 |
| VODI |
0 |
18 |
59 |
80 |
74 |
86 |
29 |
0 |
| ODI |
0 |
0 |
20 |
17 |
58 |
81 |
49 |
0 |
| CDI |
0 |
0 |
5 |
19 |
59 |
93 |
148 |
0 |
| VCDI |
0 |
0 |
0 |
7 |
44 |
243 |
2689 |
3046 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
23680 |
6045 |
679 |
288 |
46 |
66 |
53 |
0 |
| OW |
0 |
63 |
111 |
116 |
49 |
76 |
30 |
0 |
| VODI |
0 |
23 |
21 |
61 |
56 |
53 |
70 |
0 |
| ODI |
0 |
11 |
25 |
23 |
31 |
46 |
67 |
0 |
| CDI |
0 |
1 |
41 |
20 |
57 |
70 |
167 |
0 |
| VCDI |
0 |
0 |
28 |
23 |
66 |
259 |
2592 |
3046 |
|
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