Validation of sea ice concentration
Bulletin date: 2017-08-24
Model vs. observations, sea ice class contingency tables
Date: 2017-08-18:
| 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 |
21929 |
6694 |
1006 |
1063 |
278 |
38 |
7 |
0 |
| OW |
0 |
31 |
41 |
187 |
166 |
13 |
11 |
0 |
| VODI |
0 |
16 |
23 |
148 |
275 |
79 |
21 |
0 |
| ODI |
0 |
1 |
12 |
43 |
304 |
732 |
223 |
0 |
| CDI |
0 |
0 |
1 |
1 |
8 |
753 |
2435 |
6 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
209 |
857 |
548 |
|
...date precedes bulletin
|
Date: 2017-08-22:
| 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 |
20889 |
7106 |
1418 |
1114 |
473 |
79 |
10 |
0 |
| OW |
0 |
4 |
37 |
94 |
136 |
28 |
4 |
0 |
| VODI |
0 |
4 |
23 |
64 |
191 |
210 |
14 |
0 |
| ODI |
0 |
0 |
1 |
22 |
177 |
831 |
845 |
0 |
| CDI |
0 |
0 |
0 |
2 |
16 |
107 |
1896 |
78 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
19 |
911 |
1354 |
|
...date precedes bulletin
|
Date: 2017-08-24:
| 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 |
21293 |
6849 |
1322 |
1220 |
366 |
48 |
6 |
0 |
| OW |
0 |
22 |
22 |
133 |
116 |
34 |
5 |
0 |
| VODI |
0 |
8 |
26 |
79 |
225 |
181 |
13 |
0 |
| ODI |
0 |
0 |
2 |
22 |
187 |
773 |
792 |
0 |
| CDI |
0 |
0 |
0 |
2 |
18 |
183 |
1972 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
3 |
7 |
732 |
1497 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
21293 |
6849 |
1320 |
1228 |
381 |
51 |
7 |
0 |
| OW |
0 |
20 |
24 |
114 |
94 |
23 |
3 |
0 |
| VODI |
0 |
10 |
26 |
91 |
191 |
142 |
16 |
0 |
| ODI |
0 |
0 |
2 |
21 |
230 |
815 |
780 |
0 |
| CDI |
0 |
0 |
0 |
2 |
16 |
188 |
2000 |
1 |
| VCDI |
0 |
0 |
0 |
1 |
3 |
7 |
714 |
1496 |
|
Date: 2017-08-28:
| 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 |
22307 |
5996 |
1467 |
995 |
455 |
74 |
6 |
0 |
| OW |
0 |
5 |
58 |
122 |
106 |
50 |
3 |
0 |
| VODI |
0 |
0 |
14 |
84 |
260 |
220 |
24 |
0 |
| ODI |
0 |
0 |
1 |
22 |
120 |
586 |
1146 |
0 |
| CDI |
0 |
0 |
0 |
0 |
12 |
51 |
1746 |
93 |
| VCDI |
0 |
0 |
0 |
2 |
3 |
7 |
538 |
1586 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
22307 |
5991 |
1429 |
971 |
429 |
97 |
6 |
0 |
| OW |
0 |
10 |
67 |
106 |
99 |
32 |
8 |
0 |
| VODI |
0 |
0 |
42 |
120 |
242 |
185 |
50 |
0 |
| ODI |
0 |
0 |
2 |
25 |
171 |
582 |
1009 |
0 |
| CDI |
0 |
0 |
0 |
2 |
12 |
85 |
1751 |
42 |
| VCDI |
0 |
0 |
0 |
1 |
3 |
7 |
639 |
1637 |
|
Date: 2017-08-30:
| 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 |
23396 |
4844 |
1670 |
864 |
498 |
60 |
5 |
0 |
| OW |
0 |
1 |
55 |
154 |
130 |
49 |
4 |
0 |
| VODI |
0 |
0 |
20 |
83 |
325 |
175 |
35 |
0 |
| ODI |
0 |
0 |
1 |
21 |
160 |
528 |
1035 |
0 |
| CDI |
0 |
0 |
0 |
0 |
8 |
59 |
1848 |
44 |
| VCDI |
0 |
0 |
0 |
2 |
3 |
7 |
538 |
1537 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
23396 |
4836 |
1625 |
835 |
502 |
101 |
8 |
0 |
| OW |
0 |
8 |
67 |
139 |
108 |
19 |
5 |
0 |
| VODI |
0 |
1 |
47 |
119 |
284 |
195 |
46 |
0 |
| ODI |
0 |
0 |
7 |
28 |
214 |
461 |
1003 |
0 |
| CDI |
0 |
0 |
0 |
1 |
13 |
95 |
1713 |
16 |
| VCDI |
0 |
0 |
0 |
2 |
3 |
7 |
690 |
1565 |
|
Date: 2017-09-01:
| 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 |
23972 |
4751 |
1238 |
950 |
338 |
47 |
7 |
0 |
| OW |
0 |
13 |
41 |
170 |
120 |
46 |
10 |
0 |
| VODI |
0 |
3 |
20 |
116 |
361 |
119 |
40 |
0 |
| ODI |
0 |
0 |
4 |
18 |
162 |
580 |
814 |
0 |
| CDI |
0 |
0 |
0 |
0 |
7 |
126 |
1987 |
46 |
| VCDI |
0 |
0 |
0 |
1 |
3 |
5 |
562 |
1482 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
23972 |
4750 |
1222 |
899 |
370 |
93 |
12 |
0 |
| OW |
0 |
10 |
42 |
156 |
120 |
53 |
6 |
0 |
| VODI |
0 |
7 |
35 |
135 |
268 |
159 |
163 |
0 |
| ODI |
0 |
0 |
4 |
60 |
195 |
396 |
933 |
0 |
| CDI |
0 |
0 |
0 |
4 |
32 |
187 |
1410 |
47 |
| VCDI |
0 |
0 |
0 |
1 |
6 |
35 |
896 |
1481 |
|
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