Validation of sea ice concentration
Bulletin date: 2017-08-17
Model vs. observations, sea ice class contingency tables
Date: 2017-08-11:
| 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 |
19519 |
7703 |
1413 |
1621 |
410 |
105 |
56 |
0 |
| OW |
0 |
0 |
9 |
125 |
212 |
57 |
30 |
0 |
| VODI |
0 |
0 |
6 |
45 |
308 |
241 |
88 |
0 |
| ODI |
0 |
0 |
1 |
9 |
52 |
743 |
901 |
1 |
| CDI |
0 |
0 |
0 |
1 |
30 |
204 |
2678 |
337 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
319 |
935 |
|
...date precedes bulletin
|
Date: 2017-08-15:
| 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 |
20837 |
7466 |
1290 |
1103 |
274 |
87 |
37 |
0 |
| OW |
0 |
5 |
41 |
190 |
145 |
39 |
11 |
0 |
| VODI |
0 |
0 |
13 |
116 |
249 |
113 |
26 |
0 |
| ODI |
0 |
0 |
2 |
32 |
241 |
727 |
254 |
0 |
| CDI |
0 |
0 |
0 |
3 |
20 |
943 |
2544 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
90 |
713 |
548 |
|
...date precedes bulletin
|
Date: 2017-08-17:
| 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 |
21129 |
7468 |
1070 |
1053 |
250 |
64 |
37 |
0 |
| OW |
0 |
23 |
38 |
192 |
141 |
17 |
17 |
0 |
| VODI |
0 |
1 |
34 |
185 |
254 |
77 |
18 |
0 |
| ODI |
0 |
0 |
5 |
47 |
224 |
722 |
283 |
0 |
| CDI |
0 |
0 |
0 |
1 |
19 |
704 |
2561 |
3 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
172 |
802 |
548 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
21129 |
7471 |
1076 |
1055 |
251 |
63 |
42 |
0 |
| OW |
0 |
21 |
33 |
186 |
141 |
14 |
9 |
0 |
| VODI |
0 |
0 |
32 |
187 |
237 |
72 |
19 |
0 |
| ODI |
0 |
0 |
6 |
50 |
238 |
708 |
296 |
0 |
| CDI |
0 |
0 |
0 |
0 |
21 |
708 |
2543 |
3 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
191 |
809 |
548 |
|
Date: 2017-08-21:
| 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 |
21459 |
6771 |
1259 |
1032 |
469 |
83 |
3 |
0 |
| OW |
0 |
9 |
30 |
106 |
148 |
32 |
4 |
0 |
| VODI |
0 |
4 |
28 |
49 |
196 |
193 |
30 |
0 |
| ODI |
0 |
0 |
5 |
11 |
174 |
821 |
877 |
0 |
| CDI |
0 |
0 |
0 |
0 |
9 |
129 |
1913 |
48 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
20 |
895 |
1351 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
21459 |
6770 |
1243 |
1010 |
395 |
84 |
5 |
0 |
| OW |
0 |
11 |
33 |
102 |
196 |
36 |
3 |
0 |
| VODI |
0 |
2 |
29 |
64 |
244 |
234 |
56 |
0 |
| ODI |
0 |
1 |
17 |
19 |
152 |
648 |
487 |
0 |
| CDI |
0 |
0 |
0 |
3 |
8 |
258 |
2568 |
405 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
18 |
603 |
994 |
|
Date: 2017-08-23:
| 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 |
20827 |
7286 |
1285 |
1179 |
448 |
46 |
11 |
0 |
| OW |
0 |
20 |
19 |
135 |
104 |
33 |
5 |
0 |
| VODI |
0 |
10 |
23 |
80 |
192 |
172 |
18 |
0 |
| ODI |
0 |
0 |
4 |
23 |
199 |
789 |
833 |
0 |
| CDI |
0 |
0 |
0 |
1 |
16 |
162 |
1971 |
19 |
| VCDI |
0 |
0 |
0 |
1 |
2 |
7 |
630 |
1609 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20827 |
7294 |
1267 |
1115 |
379 |
46 |
11 |
0 |
| OW |
0 |
13 |
37 |
149 |
142 |
25 |
7 |
0 |
| VODI |
0 |
8 |
16 |
108 |
251 |
233 |
37 |
0 |
| ODI |
0 |
1 |
11 |
44 |
174 |
628 |
561 |
0 |
| CDI |
0 |
0 |
0 |
2 |
13 |
271 |
2542 |
271 |
| VCDI |
0 |
0 |
0 |
1 |
2 |
6 |
310 |
1357 |
|
Date: 2017-08-25:
| 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 |
22640 |
5697 |
1265 |
1161 |
334 |
42 |
7 |
0 |
| OW |
0 |
20 |
24 |
136 |
111 |
39 |
7 |
0 |
| VODI |
0 |
5 |
25 |
86 |
208 |
219 |
26 |
0 |
| ODI |
0 |
0 |
1 |
24 |
149 |
736 |
831 |
0 |
| CDI |
0 |
0 |
0 |
1 |
12 |
160 |
1832 |
20 |
| VCDI |
0 |
0 |
0 |
1 |
3 |
7 |
766 |
1564 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
22640 |
5669 |
1206 |
1035 |
284 |
45 |
11 |
0 |
| OW |
0 |
38 |
59 |
174 |
96 |
18 |
5 |
0 |
| VODI |
0 |
11 |
29 |
143 |
240 |
228 |
34 |
0 |
| ODI |
0 |
4 |
21 |
51 |
173 |
647 |
593 |
0 |
| CDI |
0 |
0 |
0 |
5 |
22 |
255 |
2454 |
199 |
| VCDI |
0 |
0 |
0 |
1 |
2 |
10 |
372 |
1385 |
|
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