Validation of sea ice concentration
Bulletin date: 2019-07-04
Model vs. observations, sea ice class contingency tables
Date: 2019-06-28:
| 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 |
15003 |
6479 |
1715 |
2111 |
687 |
426 |
218 |
0 |
| OW |
0 |
0 |
103 |
234 |
383 |
569 |
234 |
0 |
| VODI |
0 |
0 |
40 |
90 |
198 |
507 |
746 |
0 |
| ODI |
0 |
0 |
37 |
38 |
95 |
167 |
972 |
0 |
| CDI |
0 |
0 |
9 |
17 |
21 |
65 |
1075 |
8 |
| VCDI |
0 |
0 |
0 |
4 |
8 |
38 |
2012 |
3850 |
|
...date precedes bulletin
|
Date: 2019-07-02:
| 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 |
16319 |
7095 |
1756 |
1594 |
527 |
288 |
155 |
5 |
| OW |
0 |
19 |
160 |
169 |
231 |
242 |
152 |
2 |
| VODI |
0 |
0 |
33 |
200 |
213 |
273 |
329 |
0 |
| ODI |
0 |
0 |
2 |
47 |
88 |
172 |
1094 |
0 |
| CDI |
0 |
0 |
0 |
6 |
11 |
16 |
1141 |
17 |
| VCDI |
0 |
0 |
3 |
4 |
8 |
8 |
1707 |
4073 |
|
...date precedes bulletin
|
Date: 2019-07-04:
| 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 |
16648 |
7316 |
1924 |
1175 |
532 |
339 |
148 |
0 |
| OW |
0 |
14 |
207 |
178 |
198 |
151 |
128 |
0 |
| VODI |
0 |
0 |
77 |
174 |
242 |
252 |
394 |
0 |
| ODI |
0 |
0 |
3 |
37 |
112 |
279 |
848 |
2 |
| CDI |
0 |
0 |
0 |
10 |
19 |
45 |
1104 |
42 |
| VCDI |
0 |
0 |
0 |
3 |
4 |
13 |
1553 |
3988 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16648 |
7310 |
1959 |
1201 |
540 |
329 |
156 |
0 |
| OW |
0 |
20 |
160 |
149 |
179 |
142 |
130 |
0 |
| VODI |
0 |
0 |
89 |
181 |
258 |
257 |
371 |
0 |
| ODI |
0 |
0 |
3 |
33 |
104 |
289 |
861 |
1 |
| CDI |
0 |
0 |
0 |
9 |
21 |
50 |
1099 |
44 |
| VCDI |
0 |
0 |
0 |
4 |
5 |
12 |
1558 |
3987 |
|
Date: 2019-07-08:
| 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 |
18224 |
7520 |
1775 |
478 |
232 |
142 |
154 |
0 |
| OW |
0 |
102 |
152 |
90 |
120 |
71 |
105 |
0 |
| VODI |
0 |
13 |
80 |
132 |
189 |
207 |
242 |
4 |
| ODI |
0 |
0 |
3 |
32 |
88 |
475 |
840 |
27 |
| CDI |
0 |
0 |
1 |
9 |
6 |
65 |
2370 |
643 |
| VCDI |
0 |
0 |
0 |
5 |
0 |
6 |
228 |
3329 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18224 |
7466 |
1758 |
500 |
277 |
188 |
222 |
0 |
| OW |
0 |
140 |
153 |
99 |
104 |
101 |
217 |
0 |
| VODI |
0 |
29 |
95 |
119 |
196 |
297 |
600 |
3 |
| ODI |
0 |
0 |
4 |
13 |
48 |
270 |
646 |
22 |
| CDI |
0 |
0 |
1 |
10 |
10 |
105 |
1534 |
277 |
| VCDI |
0 |
0 |
0 |
5 |
0 |
5 |
720 |
3701 |
|
Date: 2019-07-10:
| 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 |
18045 |
7985 |
1426 |
604 |
381 |
190 |
68 |
0 |
| OW |
0 |
30 |
124 |
169 |
145 |
164 |
70 |
0 |
| VODI |
0 |
1 |
29 |
99 |
230 |
347 |
294 |
3 |
| ODI |
0 |
0 |
2 |
20 |
135 |
386 |
956 |
18 |
| CDI |
0 |
0 |
1 |
5 |
29 |
134 |
2124 |
926 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
1 |
201 |
2817 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18045 |
7906 |
1365 |
623 |
444 |
252 |
126 |
0 |
| OW |
0 |
95 |
141 |
130 |
140 |
186 |
202 |
0 |
| VODI |
0 |
15 |
71 |
123 |
217 |
369 |
587 |
4 |
| ODI |
0 |
0 |
4 |
15 |
78 |
256 |
547 |
20 |
| CDI |
0 |
0 |
1 |
6 |
41 |
158 |
1814 |
458 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
1 |
437 |
3282 |
|
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 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16973 |
8962 |
1365 |
713 |
489 |
307 |
108 |
0 |
| OW |
0 |
102 |
81 |
179 |
212 |
239 |
185 |
0 |
| VODI |
0 |
7 |
14 |
137 |
275 |
418 |
481 |
0 |
| ODI |
0 |
0 |
2 |
15 |
77 |
331 |
479 |
11 |
| CDI |
0 |
0 |
1 |
11 |
34 |
252 |
1681 |
705 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
278 |
3035 |
|
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