Validation of sea ice concentration
Bulletin date: 2020-07-02
Model vs. observations, sea ice class contingency tables
Date: 2020-06-26:
| 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 |
16250 |
6883 |
2139 |
1666 |
608 |
211 |
158 |
0 |
| OW |
0 |
0 |
44 |
231 |
184 |
244 |
140 |
0 |
| VODI |
0 |
0 |
4 |
98 |
215 |
454 |
463 |
0 |
| ODI |
0 |
0 |
0 |
38 |
53 |
253 |
644 |
0 |
| CDI |
0 |
0 |
0 |
37 |
61 |
159 |
1432 |
95 |
| VCDI |
0 |
0 |
1 |
7 |
6 |
5 |
1419 |
3957 |
|
...date precedes bulletin
|
Date: 2020-06-30:
| 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 |
16869 |
6676 |
2167 |
1469 |
588 |
149 |
136 |
0 |
| OW |
0 |
5 |
60 |
182 |
238 |
127 |
84 |
0 |
| VODI |
0 |
1 |
13 |
123 |
324 |
264 |
253 |
0 |
| ODI |
0 |
0 |
2 |
41 |
186 |
504 |
646 |
0 |
| CDI |
0 |
0 |
0 |
6 |
52 |
282 |
2051 |
70 |
| VCDI |
0 |
0 |
5 |
3 |
7 |
27 |
1242 |
3307 |
|
...date precedes bulletin
|
Date: 2020-07-02:
| 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 |
17562 |
6922 |
2057 |
820 |
496 |
250 |
134 |
0 |
| OW |
0 |
6 |
62 |
165 |
245 |
196 |
105 |
0 |
| VODI |
0 |
1 |
21 |
81 |
247 |
416 |
314 |
0 |
| ODI |
0 |
0 |
7 |
46 |
87 |
509 |
537 |
0 |
| CDI |
0 |
0 |
0 |
7 |
54 |
213 |
1913 |
369 |
| VCDI |
0 |
0 |
1 |
2 |
8 |
83 |
1129 |
3094 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17562 |
6923 |
2072 |
857 |
518 |
261 |
142 |
0 |
| OW |
0 |
5 |
51 |
143 |
227 |
182 |
101 |
0 |
| VODI |
0 |
1 |
16 |
61 |
237 |
410 |
334 |
0 |
| ODI |
0 |
0 |
8 |
51 |
92 |
522 |
537 |
0 |
| CDI |
0 |
0 |
0 |
7 |
57 |
212 |
1719 |
349 |
| VCDI |
0 |
0 |
1 |
2 |
6 |
80 |
1299 |
3114 |
|
Date: 2020-07-06:
| 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 |
18384 |
6526 |
2553 |
736 |
535 |
132 |
75 |
0 |
| OW |
0 |
0 |
46 |
195 |
227 |
91 |
78 |
0 |
| VODI |
0 |
0 |
7 |
117 |
253 |
262 |
217 |
0 |
| ODI |
0 |
0 |
4 |
71 |
91 |
682 |
646 |
0 |
| CDI |
0 |
0 |
0 |
30 |
41 |
137 |
1829 |
1346 |
| VCDI |
0 |
0 |
0 |
5 |
11 |
18 |
525 |
2289 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18384 |
6526 |
2488 |
746 |
606 |
176 |
101 |
0 |
| OW |
0 |
0 |
87 |
173 |
226 |
205 |
90 |
0 |
| VODI |
0 |
0 |
22 |
105 |
161 |
351 |
377 |
0 |
| ODI |
0 |
0 |
12 |
75 |
103 |
446 |
524 |
0 |
| CDI |
0 |
0 |
1 |
50 |
51 |
126 |
1755 |
780 |
| VCDI |
0 |
0 |
0 |
5 |
11 |
18 |
523 |
2855 |
|
Date: 2020-07-08:
| 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 |
19073 |
6754 |
1904 |
893 |
507 |
218 |
98 |
0 |
| OW |
0 |
0 |
49 |
163 |
204 |
136 |
104 |
0 |
| VODI |
0 |
0 |
29 |
105 |
169 |
279 |
298 |
0 |
| ODI |
0 |
0 |
3 |
66 |
42 |
283 |
1365 |
3 |
| CDI |
0 |
0 |
1 |
37 |
43 |
43 |
1247 |
1442 |
| VCDI |
0 |
0 |
0 |
9 |
6 |
16 |
499 |
2071 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
19073 |
6731 |
1820 |
838 |
536 |
267 |
136 |
0 |
| OW |
0 |
22 |
95 |
193 |
168 |
94 |
165 |
0 |
| VODI |
0 |
1 |
53 |
108 |
140 |
231 |
504 |
0 |
| ODI |
0 |
0 |
16 |
69 |
74 |
315 |
899 |
2 |
| CDI |
0 |
0 |
2 |
56 |
47 |
49 |
1400 |
916 |
| VCDI |
0 |
0 |
0 |
9 |
6 |
19 |
507 |
2598 |
|
Date: 2020-07-10:
| 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 |
20353 |
6195 |
1591 |
804 |
504 |
187 |
105 |
0 |
| OW |
0 |
1 |
55 |
193 |
223 |
116 |
127 |
0 |
| VODI |
0 |
0 |
15 |
91 |
166 |
250 |
482 |
2 |
| ODI |
0 |
0 |
2 |
53 |
37 |
208 |
1537 |
75 |
| CDI |
0 |
0 |
0 |
49 |
43 |
42 |
799 |
1595 |
| VCDI |
0 |
0 |
1 |
9 |
4 |
8 |
464 |
1773 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20353 |
6187 |
1461 |
733 |
619 |
251 |
156 |
0 |
| OW |
0 |
9 |
141 |
193 |
110 |
90 |
149 |
0 |
| VODI |
0 |
0 |
60 |
144 |
142 |
208 |
668 |
0 |
| ODI |
0 |
0 |
1 |
55 |
58 |
204 |
1293 |
3 |
| CDI |
0 |
0 |
0 |
66 |
43 |
46 |
701 |
1074 |
| VCDI |
0 |
0 |
1 |
8 |
5 |
12 |
547 |
2368 |
|
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