Validation of sea ice concentration
Bulletin date: 2019-09-26
Model vs. observations, sea ice class contingency tables
Date: 2019-09-20:
| 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 |
4863 |
517 |
373 |
94 |
14 |
0 |
0 |
| OW |
0 |
160 |
157 |
82 |
36 |
11 |
1 |
0 |
| VODI |
0 |
57 |
152 |
171 |
87 |
38 |
8 |
0 |
| ODI |
0 |
3 |
48 |
90 |
187 |
89 |
39 |
0 |
| CDI |
0 |
0 |
10 |
37 |
146 |
233 |
625 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
2 |
22 |
2133 |
2736 |
|
...date precedes bulletin
|
Date: 2019-09-24:
| 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 |
24699 |
5235 |
662 |
484 |
56 |
2 |
1 |
0 |
| OW |
0 |
33 |
89 |
148 |
42 |
5 |
1 |
0 |
| VODI |
0 |
8 |
49 |
157 |
93 |
25 |
14 |
0 |
| ODI |
0 |
0 |
10 |
86 |
153 |
117 |
66 |
0 |
| CDI |
0 |
0 |
0 |
37 |
145 |
297 |
549 |
0 |
| VCDI |
0 |
0 |
0 |
7 |
29 |
119 |
2544 |
2197 |
|
...date precedes bulletin
|
Date: 2019-09-26:
| 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 |
24263 |
5448 |
752 |
449 |
114 |
12 |
1 |
0 |
| OW |
0 |
20 |
99 |
118 |
91 |
18 |
2 |
0 |
| VODI |
0 |
13 |
55 |
77 |
141 |
75 |
9 |
0 |
| ODI |
0 |
0 |
25 |
42 |
94 |
164 |
45 |
0 |
| CDI |
0 |
0 |
4 |
22 |
118 |
253 |
563 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
15 |
111 |
2596 |
2349 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24263 |
5446 |
777 |
483 |
140 |
13 |
1 |
0 |
| OW |
0 |
21 |
69 |
86 |
80 |
19 |
1 |
0 |
| VODI |
0 |
11 |
58 |
80 |
120 |
70 |
10 |
0 |
| ODI |
0 |
3 |
27 |
43 |
95 |
158 |
39 |
0 |
| CDI |
0 |
0 |
4 |
17 |
122 |
252 |
510 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
16 |
121 |
2655 |
2349 |
|
Date: 2019-09-30:
| 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 |
23747 |
5650 |
992 |
316 |
212 |
16 |
1 |
0 |
| OW |
0 |
1 |
81 |
75 |
75 |
26 |
0 |
0 |
| VODI |
0 |
0 |
40 |
71 |
93 |
69 |
14 |
0 |
| ODI |
0 |
0 |
7 |
42 |
108 |
180 |
86 |
0 |
| CDI |
0 |
0 |
0 |
22 |
59 |
263 |
394 |
0 |
| VCDI |
0 |
0 |
0 |
8 |
29 |
159 |
2980 |
2343 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
23747 |
5624 |
878 |
317 |
244 |
20 |
1 |
0 |
| OW |
0 |
20 |
99 |
48 |
59 |
21 |
0 |
0 |
| VODI |
0 |
7 |
95 |
79 |
84 |
91 |
7 |
0 |
| ODI |
0 |
0 |
32 |
50 |
78 |
149 |
47 |
0 |
| CDI |
0 |
0 |
16 |
38 |
76 |
260 |
308 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
35 |
172 |
3112 |
2343 |
|
Date: 2019-10-02:
| 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 |
23754 |
5479 |
852 |
488 |
202 |
47 |
1 |
0 |
| OW |
0 |
3 |
52 |
61 |
110 |
64 |
7 |
0 |
| VODI |
0 |
0 |
16 |
31 |
99 |
92 |
48 |
0 |
| ODI |
0 |
0 |
6 |
24 |
91 |
167 |
112 |
0 |
| CDI |
0 |
0 |
0 |
52 |
79 |
142 |
455 |
0 |
| VCDI |
0 |
0 |
0 |
25 |
46 |
121 |
2921 |
2512 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
23754 |
5441 |
767 |
444 |
236 |
64 |
1 |
0 |
| OW |
0 |
32 |
76 |
52 |
79 |
41 |
5 |
0 |
| VODI |
0 |
9 |
51 |
63 |
106 |
119 |
24 |
0 |
| ODI |
0 |
0 |
19 |
39 |
91 |
152 |
81 |
0 |
| CDI |
0 |
0 |
13 |
62 |
67 |
123 |
428 |
0 |
| VCDI |
0 |
0 |
0 |
21 |
48 |
134 |
3005 |
2512 |
|
Date: 2019-10-04:
| 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 |
23956 |
5314 |
750 |
496 |
130 |
13 |
0 |
0 |
| OW |
0 |
8 |
103 |
120 |
110 |
23 |
7 |
0 |
| VODI |
0 |
4 |
26 |
54 |
125 |
74 |
30 |
0 |
| ODI |
0 |
4 |
8 |
53 |
123 |
104 |
74 |
0 |
| CDI |
0 |
0 |
11 |
29 |
110 |
217 |
367 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
75 |
276 |
3089 |
2274 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
23956 |
5246 |
677 |
500 |
199 |
17 |
1 |
0 |
| OW |
0 |
58 |
59 |
61 |
80 |
31 |
6 |
0 |
| VODI |
0 |
18 |
86 |
76 |
94 |
83 |
16 |
0 |
| ODI |
0 |
4 |
45 |
71 |
131 |
82 |
56 |
0 |
| CDI |
0 |
4 |
30 |
36 |
98 |
188 |
296 |
0 |
| VCDI |
0 |
0 |
1 |
10 |
71 |
306 |
3192 |
2274 |
|
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