Validation of sea ice concentration
Bulletin date: 2018-08-23
Model vs. observations, sea ice class contingency tables
Date: 2018-08-17:
| 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 |
25771 |
5413 |
820 |
492 |
73 |
35 |
45 |
0 |
| OW |
0 |
2 |
58 |
223 |
155 |
62 |
24 |
0 |
| VODI |
0 |
0 |
17 |
94 |
198 |
175 |
65 |
0 |
| ODI |
0 |
0 |
0 |
25 |
99 |
248 |
286 |
0 |
| CDI |
0 |
0 |
0 |
0 |
3 |
115 |
2073 |
262 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
2 |
248 |
1076 |
|
...date precedes bulletin
|
Date: 2018-08-21:
| 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 |
26584 |
5047 |
785 |
283 |
62 |
27 |
42 |
0 |
| OW |
0 |
50 |
97 |
133 |
100 |
21 |
22 |
0 |
| VODI |
0 |
14 |
56 |
164 |
154 |
47 |
33 |
0 |
| ODI |
0 |
0 |
4 |
65 |
178 |
210 |
265 |
0 |
| CDI |
0 |
0 |
0 |
3 |
15 |
232 |
1758 |
465 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
1 |
419 |
823 |
|
...date precedes bulletin
|
Date: 2018-08-23:
| 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 |
26831 |
5037 |
512 |
273 |
102 |
35 |
37 |
0 |
| OW |
0 |
49 |
62 |
118 |
132 |
30 |
14 |
0 |
| VODI |
0 |
8 |
31 |
124 |
200 |
72 |
41 |
0 |
| ODI |
0 |
0 |
3 |
35 |
150 |
215 |
245 |
0 |
| CDI |
0 |
0 |
0 |
4 |
26 |
268 |
1780 |
535 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
1 |
400 |
789 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
26831 |
5011 |
511 |
286 |
106 |
28 |
36 |
0 |
| OW |
0 |
71 |
63 |
96 |
120 |
31 |
15 |
0 |
| VODI |
0 |
12 |
31 |
129 |
203 |
83 |
47 |
0 |
| ODI |
0 |
0 |
3 |
40 |
154 |
189 |
271 |
0 |
| CDI |
0 |
0 |
0 |
3 |
27 |
290 |
1740 |
520 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
408 |
804 |
|
Date: 2018-08-27:
| 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 |
26480 |
5254 |
469 |
403 |
81 |
23 |
34 |
0 |
| OW |
0 |
31 |
57 |
137 |
88 |
13 |
12 |
0 |
| VODI |
0 |
9 |
29 |
108 |
189 |
96 |
31 |
0 |
| ODI |
0 |
2 |
4 |
26 |
142 |
220 |
203 |
0 |
| CDI |
0 |
14 |
1 |
13 |
15 |
192 |
2906 |
84 |
| VCDI |
0 |
353 |
6 |
11 |
14 |
11 |
398 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
26480 |
5242 |
464 |
394 |
96 |
23 |
33 |
0 |
| OW |
0 |
44 |
62 |
146 |
135 |
34 |
22 |
0 |
| VODI |
0 |
10 |
32 |
108 |
168 |
148 |
74 |
0 |
| ODI |
0 |
0 |
1 |
29 |
100 |
181 |
321 |
0 |
| CDI |
0 |
0 |
0 |
2 |
12 |
156 |
2588 |
84 |
| VCDI |
0 |
367 |
7 |
19 |
18 |
13 |
546 |
0 |
|
Date: 2018-08-29:
| 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 |
26323 |
5303 |
474 |
517 |
78 |
41 |
33 |
0 |
| OW |
0 |
11 |
27 |
171 |
92 |
31 |
16 |
0 |
| VODI |
0 |
4 |
14 |
131 |
156 |
96 |
68 |
0 |
| ODI |
0 |
0 |
5 |
53 |
95 |
189 |
256 |
0 |
| CDI |
0 |
26 |
2 |
15 |
17 |
137 |
2941 |
92 |
| VCDI |
0 |
341 |
5 |
10 |
13 |
10 |
366 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
26323 |
5281 |
461 |
517 |
85 |
47 |
27 |
0 |
| OW |
0 |
29 |
34 |
171 |
106 |
46 |
31 |
0 |
| VODI |
0 |
8 |
17 |
143 |
147 |
124 |
118 |
0 |
| ODI |
0 |
0 |
8 |
45 |
83 |
143 |
363 |
0 |
| CDI |
0 |
0 |
0 |
2 |
12 |
131 |
2667 |
92 |
| VCDI |
0 |
367 |
7 |
19 |
18 |
13 |
474 |
0 |
|
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 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
26194 |
5353 |
583 |
475 |
58 |
45 |
25 |
0 |
| OW |
0 |
49 |
68 |
142 |
118 |
39 |
24 |
0 |
| VODI |
0 |
5 |
41 |
125 |
188 |
128 |
116 |
0 |
| ODI |
0 |
0 |
8 |
40 |
111 |
159 |
350 |
0 |
| CDI |
0 |
0 |
0 |
0 |
12 |
131 |
2072 |
710 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
213 |
577 |
|
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