Validation of sea ice concentration
Bulletin date: 2017-07-20
Model vs. observations, sea ice class contingency tables
Date: 2017-07-14:
| 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 |
16034 |
6511 |
2989 |
1088 |
877 |
263 |
133 |
0 |
| OW |
0 |
0 |
50 |
182 |
413 |
195 |
115 |
0 |
| VODI |
0 |
0 |
15 |
134 |
335 |
431 |
425 |
0 |
| ODI |
0 |
0 |
5 |
35 |
106 |
208 |
1010 |
0 |
| CDI |
0 |
0 |
0 |
12 |
27 |
87 |
1787 |
830 |
| VCDI |
0 |
0 |
0 |
3 |
0 |
2 |
559 |
3298 |
|
...date precedes bulletin
|
Date: 2017-07-18:
| 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 |
16421 |
6559 |
3286 |
1337 |
858 |
322 |
152 |
0 |
| OW |
0 |
0 |
44 |
143 |
207 |
215 |
169 |
0 |
| VODI |
0 |
0 |
17 |
78 |
180 |
325 |
521 |
0 |
| ODI |
0 |
0 |
14 |
24 |
53 |
256 |
973 |
0 |
| CDI |
0 |
0 |
2 |
5 |
15 |
44 |
1840 |
1947 |
| VCDI |
0 |
0 |
0 |
4 |
0 |
3 |
378 |
1767 |
|
...date precedes bulletin
|
Date: 2017-07-20:
| 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 |
16679 |
6585 |
3393 |
1299 |
927 |
253 |
111 |
0 |
| OW |
0 |
0 |
36 |
142 |
261 |
237 |
154 |
0 |
| VODI |
0 |
0 |
5 |
72 |
190 |
435 |
463 |
0 |
| ODI |
0 |
0 |
1 |
36 |
72 |
198 |
902 |
2 |
| CDI |
0 |
0 |
0 |
10 |
10 |
52 |
1770 |
1823 |
| VCDI |
0 |
0 |
0 |
2 |
0 |
0 |
297 |
1742 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16679 |
6585 |
3394 |
1314 |
923 |
279 |
137 |
0 |
| OW |
0 |
0 |
29 |
127 |
252 |
211 |
140 |
0 |
| VODI |
0 |
0 |
11 |
66 |
199 |
383 |
453 |
0 |
| ODI |
0 |
0 |
1 |
37 |
71 |
247 |
882 |
1 |
| CDI |
0 |
0 |
0 |
14 |
15 |
55 |
1801 |
1877 |
| VCDI |
0 |
0 |
0 |
3 |
0 |
0 |
284 |
1689 |
|
Date: 2017-07-24:
| 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 |
18286 |
7450 |
1551 |
1416 |
883 |
210 |
130 |
0 |
| OW |
0 |
0 |
34 |
148 |
318 |
138 |
75 |
0 |
| VODI |
0 |
0 |
30 |
51 |
306 |
252 |
154 |
8 |
| ODI |
0 |
0 |
6 |
15 |
98 |
360 |
1106 |
13 |
| CDI |
0 |
0 |
3 |
3 |
47 |
143 |
2971 |
556 |
| VCDI |
0 |
0 |
1 |
0 |
0 |
3 |
261 |
1133 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18286 |
7449 |
1510 |
1340 |
814 |
239 |
152 |
0 |
| OW |
0 |
1 |
70 |
151 |
327 |
158 |
132 |
0 |
| VODI |
0 |
0 |
36 |
93 |
353 |
269 |
403 |
10 |
| ODI |
0 |
0 |
4 |
40 |
95 |
224 |
729 |
18 |
| CDI |
0 |
0 |
4 |
8 |
63 |
214 |
2974 |
452 |
| VCDI |
0 |
0 |
1 |
1 |
0 |
2 |
307 |
1230 |
|
Date: 2017-07-26:
| 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 |
17199 |
8604 |
1587 |
1536 |
825 |
331 |
146 |
0 |
| OW |
0 |
0 |
16 |
104 |
235 |
193 |
122 |
0 |
| VODI |
0 |
0 |
8 |
26 |
171 |
291 |
321 |
0 |
| ODI |
0 |
0 |
3 |
4 |
51 |
230 |
1270 |
0 |
| CDI |
0 |
0 |
3 |
0 |
43 |
131 |
2763 |
804 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
1 |
408 |
733 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17199 |
8604 |
1553 |
1414 |
744 |
346 |
179 |
0 |
| OW |
0 |
0 |
41 |
130 |
228 |
211 |
206 |
0 |
| VODI |
0 |
0 |
16 |
81 |
222 |
273 |
549 |
0 |
| ODI |
0 |
0 |
2 |
39 |
71 |
170 |
795 |
0 |
| CDI |
0 |
0 |
4 |
6 |
60 |
176 |
2820 |
701 |
| VCDI |
0 |
0 |
1 |
0 |
0 |
1 |
481 |
836 |
|
Date: 2017-07-28:
| 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 |
16934 |
8570 |
2097 |
1434 |
816 |
361 |
153 |
0 |
| OW |
0 |
0 |
24 |
84 |
211 |
235 |
144 |
0 |
| VODI |
0 |
0 |
1 |
34 |
120 |
351 |
394 |
0 |
| ODI |
0 |
0 |
3 |
5 |
52 |
140 |
1229 |
11 |
| CDI |
0 |
0 |
3 |
0 |
34 |
119 |
2729 |
964 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
2 |
230 |
675 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16934 |
8569 |
2077 |
1329 |
740 |
419 |
194 |
0 |
| OW |
0 |
1 |
30 |
107 |
226 |
239 |
251 |
0 |
| VODI |
0 |
0 |
14 |
75 |
143 |
276 |
524 |
0 |
| ODI |
0 |
0 |
4 |
43 |
72 |
121 |
792 |
0 |
| CDI |
0 |
0 |
3 |
3 |
52 |
151 |
2552 |
876 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
2 |
566 |
774 |
|
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