Validation of sea ice concentration
Bulletin date: 2019-07-18
Model vs. observations, sea ice class contingency tables
Date: 2019-07-12:
| 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 |
16973 |
9040 |
1396 |
717 |
418 |
202 |
48 |
0 |
| OW |
0 |
31 |
53 |
192 |
226 |
174 |
63 |
0 |
| VODI |
0 |
0 |
10 |
114 |
293 |
419 |
318 |
0 |
| ODI |
0 |
0 |
3 |
25 |
133 |
499 |
879 |
15 |
| CDI |
0 |
0 |
1 |
6 |
17 |
253 |
1704 |
1456 |
| VCDI |
0 |
0 |
0 |
1 |
0 |
0 |
200 |
2280 |
|
...date precedes bulletin
|
Date: 2019-07-16:
| 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 |
17321 |
8521 |
1525 |
989 |
490 |
138 |
30 |
0 |
| OW |
0 |
1 |
40 |
166 |
158 |
123 |
40 |
0 |
| VODI |
0 |
0 |
10 |
104 |
265 |
352 |
120 |
0 |
| ODI |
0 |
0 |
13 |
43 |
177 |
648 |
479 |
15 |
| CDI |
0 |
0 |
4 |
4 |
22 |
230 |
2596 |
2360 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
2 |
116 |
1057 |
|
...date precedes bulletin
|
Date: 2019-07-18:
| 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 |
16903 |
9080 |
1652 |
996 |
413 |
86 |
19 |
0 |
| OW |
0 |
20 |
52 |
165 |
184 |
149 |
35 |
0 |
| VODI |
0 |
0 |
19 |
125 |
296 |
388 |
209 |
0 |
| ODI |
0 |
0 |
5 |
51 |
202 |
544 |
592 |
8 |
| CDI |
0 |
0 |
4 |
14 |
27 |
147 |
2639 |
2502 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
4 |
22 |
607 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16903 |
9091 |
1661 |
1026 |
439 |
110 |
20 |
0 |
| OW |
0 |
9 |
44 |
138 |
183 |
166 |
41 |
0 |
| VODI |
0 |
0 |
19 |
118 |
280 |
350 |
239 |
0 |
| ODI |
0 |
0 |
4 |
57 |
198 |
515 |
590 |
11 |
| CDI |
0 |
0 |
4 |
12 |
22 |
175 |
2565 |
2354 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
2 |
61 |
752 |
|
Date: 2019-07-22:
| 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 |
18044 |
8810 |
1360 |
826 |
280 |
72 |
17 |
0 |
| OW |
0 |
7 |
67 |
151 |
163 |
103 |
15 |
0 |
| VODI |
0 |
0 |
19 |
132 |
358 |
381 |
74 |
0 |
| ODI |
0 |
0 |
2 |
60 |
266 |
679 |
322 |
0 |
| CDI |
0 |
0 |
1 |
7 |
30 |
241 |
2978 |
2634 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
6 |
29 |
25 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18044 |
8797 |
1371 |
863 |
349 |
125 |
25 |
0 |
| OW |
0 |
20 |
59 |
145 |
214 |
214 |
52 |
0 |
| VODI |
0 |
0 |
13 |
116 |
342 |
515 |
223 |
0 |
| ODI |
0 |
0 |
5 |
46 |
168 |
463 |
844 |
4 |
| CDI |
0 |
0 |
1 |
6 |
24 |
165 |
2273 |
2618 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
18 |
37 |
|
Date: 2019-07-24:
| 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 |
18117 |
8496 |
1619 |
946 |
284 |
40 |
6 |
0 |
| OW |
0 |
2 |
66 |
198 |
161 |
95 |
23 |
0 |
| VODI |
0 |
0 |
21 |
243 |
510 |
257 |
98 |
0 |
| ODI |
0 |
0 |
12 |
105 |
278 |
422 |
482 |
0 |
| CDI |
0 |
0 |
2 |
21 |
45 |
163 |
2969 |
2465 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
1 |
12 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18117 |
8483 |
1639 |
1024 |
342 |
90 |
23 |
0 |
| OW |
0 |
15 |
47 |
195 |
251 |
159 |
57 |
0 |
| VODI |
0 |
0 |
24 |
199 |
460 |
369 |
276 |
0 |
| ODI |
0 |
0 |
8 |
75 |
185 |
231 |
1095 |
19 |
| CDI |
0 |
0 |
2 |
20 |
40 |
129 |
2126 |
2446 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
13 |
0 |
|
Date: 2019-07-26:
| 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 |
18880 |
8126 |
1430 |
887 |
188 |
28 |
10 |
0 |
| OW |
0 |
0 |
83 |
210 |
192 |
97 |
27 |
0 |
| VODI |
0 |
0 |
25 |
233 |
490 |
349 |
144 |
0 |
| ODI |
0 |
0 |
9 |
98 |
191 |
324 |
787 |
0 |
| CDI |
0 |
0 |
0 |
13 |
36 |
38 |
2593 |
2658 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
1 |
12 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18880 |
8122 |
1475 |
972 |
284 |
121 |
27 |
0 |
| OW |
0 |
4 |
48 |
175 |
253 |
161 |
79 |
0 |
| VODI |
0 |
0 |
17 |
205 |
382 |
365 |
347 |
0 |
| ODI |
0 |
0 |
6 |
75 |
145 |
153 |
1298 |
54 |
| CDI |
0 |
0 |
1 |
14 |
33 |
37 |
1811 |
2604 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
11 |
0 |
|
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