Validation of sea ice concentration
Bulletin date: 2019-07-25
Model vs. observations, sea ice class contingency tables
Date: 2019-07-19:
| 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 |
17182 |
9054 |
1653 |
898 |
333 |
82 |
16 |
0 |
| OW |
0 |
50 |
95 |
178 |
167 |
117 |
37 |
0 |
| VODI |
0 |
7 |
37 |
169 |
312 |
423 |
185 |
0 |
| ODI |
0 |
0 |
10 |
59 |
214 |
549 |
575 |
0 |
| CDI |
0 |
0 |
2 |
12 |
49 |
211 |
2964 |
2042 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
4 |
24 |
449 |
|
...date precedes bulletin
|
Date: 2019-07-23:
| 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 |
18083 |
8548 |
1662 |
904 |
214 |
65 |
17 |
0 |
| OW |
0 |
3 |
59 |
185 |
158 |
96 |
16 |
0 |
| VODI |
0 |
0 |
27 |
179 |
433 |
340 |
72 |
0 |
| ODI |
0 |
0 |
3 |
65 |
300 |
476 |
456 |
1 |
| CDI |
0 |
0 |
1 |
10 |
26 |
161 |
2914 |
2666 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
4 |
15 |
0 |
|
...date precedes bulletin
|
Date: 2019-07-25:
| 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 |
18400 |
8323 |
1494 |
1035 |
235 |
43 |
8 |
0 |
| OW |
0 |
1 |
60 |
180 |
204 |
93 |
28 |
0 |
| VODI |
0 |
0 |
18 |
227 |
531 |
305 |
127 |
0 |
| ODI |
0 |
0 |
13 |
93 |
213 |
399 |
605 |
0 |
| CDI |
0 |
0 |
0 |
12 |
51 |
123 |
2746 |
2579 |
| 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 |
18400 |
8321 |
1507 |
1059 |
281 |
66 |
10 |
0 |
| OW |
0 |
3 |
48 |
167 |
201 |
93 |
26 |
0 |
| VODI |
0 |
0 |
18 |
225 |
465 |
276 |
134 |
0 |
| ODI |
0 |
0 |
12 |
83 |
241 |
387 |
662 |
0 |
| CDI |
0 |
0 |
0 |
13 |
46 |
142 |
2675 |
2579 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
19 |
0 |
|
Date: 2019-07-29:
| 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 |
19558 |
7876 |
1369 |
678 |
142 |
34 |
3 |
0 |
| OW |
0 |
1 |
127 |
168 |
121 |
60 |
21 |
0 |
| VODI |
0 |
0 |
85 |
268 |
474 |
209 |
113 |
0 |
| ODI |
0 |
0 |
38 |
76 |
195 |
325 |
494 |
0 |
| CDI |
0 |
0 |
7 |
9 |
14 |
95 |
2311 |
1022 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
10 |
965 |
1291 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
19558 |
7873 |
1380 |
707 |
195 |
79 |
14 |
0 |
| OW |
0 |
4 |
116 |
200 |
228 |
102 |
53 |
0 |
| VODI |
0 |
0 |
74 |
207 |
363 |
245 |
243 |
0 |
| ODI |
0 |
0 |
45 |
67 |
139 |
259 |
1226 |
0 |
| CDI |
0 |
0 |
11 |
18 |
21 |
48 |
2361 |
2313 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
10 |
0 |
|
Date: 2019-07-31:
| 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 |
19764 |
7844 |
1283 |
668 |
160 |
30 |
3 |
0 |
| OW |
0 |
2 |
105 |
209 |
156 |
82 |
11 |
0 |
| VODI |
0 |
0 |
54 |
365 |
444 |
294 |
118 |
0 |
| ODI |
0 |
0 |
15 |
62 |
157 |
348 |
470 |
0 |
| CDI |
0 |
0 |
5 |
8 |
17 |
159 |
2315 |
1034 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
7 |
783 |
1187 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
19764 |
7842 |
1284 |
699 |
252 |
72 |
13 |
0 |
| OW |
0 |
4 |
93 |
270 |
232 |
110 |
55 |
0 |
| VODI |
0 |
0 |
56 |
243 |
292 |
313 |
248 |
0 |
| ODI |
0 |
0 |
22 |
82 |
127 |
310 |
1364 |
46 |
| CDI |
0 |
0 |
7 |
18 |
31 |
115 |
2010 |
2175 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
10 |
0 |
|
Date: 2019-08-02:
| 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 |
20278 |
7132 |
1572 |
605 |
176 |
27 |
4 |
0 |
| OW |
0 |
1 |
144 |
267 |
186 |
61 |
19 |
0 |
| VODI |
0 |
0 |
61 |
377 |
407 |
264 |
130 |
0 |
| ODI |
0 |
0 |
17 |
106 |
116 |
278 |
572 |
0 |
| CDI |
0 |
0 |
8 |
9 |
19 |
135 |
2341 |
1127 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
0 |
446 |
1273 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20278 |
7133 |
1585 |
731 |
296 |
73 |
18 |
0 |
| OW |
0 |
0 |
97 |
252 |
230 |
81 |
63 |
0 |
| VODI |
0 |
0 |
88 |
264 |
258 |
292 |
333 |
0 |
| ODI |
0 |
0 |
24 |
100 |
103 |
238 |
1504 |
137 |
| CDI |
0 |
0 |
8 |
17 |
18 |
81 |
1585 |
2263 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
9 |
0 |
|
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