Validation of sea ice concentration
Bulletin date: 2020-05-21
Model vs. observations, sea ice class contingency tables
Date: 2020-05-15:
| 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 |
12179 |
6513 |
1494 |
1605 |
633 |
176 |
117 |
0 |
| OW |
0 |
4 |
162 |
338 |
239 |
232 |
102 |
0 |
| VODI |
0 |
0 |
83 |
264 |
334 |
332 |
290 |
7 |
| ODI |
0 |
0 |
52 |
127 |
217 |
289 |
366 |
7 |
| CDI |
0 |
0 |
41 |
113 |
214 |
554 |
836 |
6 |
| VCDI |
0 |
0 |
32 |
78 |
186 |
313 |
5484 |
4140 |
|
...date precedes bulletin
|
Date: 2020-05-19:
| 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 |
12914 |
6459 |
1896 |
1503 |
618 |
214 |
126 |
0 |
| OW |
0 |
15 |
207 |
273 |
243 |
138 |
92 |
3 |
| VODI |
0 |
2 |
82 |
135 |
328 |
413 |
202 |
11 |
| ODI |
0 |
0 |
36 |
75 |
157 |
326 |
461 |
2 |
| CDI |
0 |
0 |
44 |
120 |
131 |
225 |
1985 |
0 |
| VCDI |
0 |
0 |
2 |
10 |
26 |
59 |
4354 |
4272 |
|
...date precedes bulletin
|
Date: 2020-05-21:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2020-05-25:
| 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 |
14002 |
6664 |
1535 |
1389 |
604 |
316 |
152 |
0 |
| OW |
0 |
7 |
96 |
192 |
155 |
151 |
136 |
7 |
| VODI |
0 |
0 |
28 |
164 |
185 |
235 |
258 |
8 |
| ODI |
0 |
0 |
2 |
41 |
120 |
269 |
904 |
1 |
| CDI |
0 |
0 |
0 |
25 |
34 |
227 |
2606 |
0 |
| VCDI |
0 |
0 |
0 |
13 |
13 |
58 |
3354 |
4208 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14002 |
6647 |
1516 |
1422 |
731 |
461 |
289 |
4 |
| OW |
0 |
16 |
77 |
118 |
116 |
212 |
374 |
9 |
| VODI |
0 |
8 |
51 |
159 |
114 |
154 |
590 |
2 |
| ODI |
0 |
0 |
15 |
69 |
86 |
133 |
954 |
1 |
| CDI |
0 |
0 |
2 |
40 |
49 |
185 |
2259 |
0 |
| VCDI |
0 |
0 |
0 |
16 |
15 |
111 |
2944 |
4208 |
|
Date: 2020-05-27:
| 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 |
14199 |
6761 |
1696 |
1367 |
747 |
201 |
126 |
1 |
| OW |
0 |
13 |
50 |
162 |
257 |
170 |
134 |
11 |
| VODI |
0 |
4 |
23 |
96 |
249 |
310 |
372 |
2 |
| ODI |
0 |
0 |
5 |
44 |
98 |
287 |
966 |
1 |
| CDI |
0 |
0 |
2 |
30 |
83 |
248 |
2540 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
8 |
18 |
2663 |
4209 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14199 |
6743 |
1635 |
1344 |
906 |
394 |
289 |
1 |
| OW |
0 |
20 |
76 |
130 |
149 |
207 |
332 |
11 |
| VODI |
0 |
14 |
48 |
126 |
169 |
166 |
653 |
2 |
| ODI |
0 |
1 |
14 |
45 |
99 |
182 |
1040 |
1 |
| CDI |
0 |
0 |
3 |
47 |
108 |
250 |
1932 |
0 |
| VCDI |
0 |
0 |
0 |
13 |
11 |
35 |
2555 |
4209 |
|
Date: 2020-05-29:
| 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 |
14451 |
6733 |
1721 |
1464 |
651 |
192 |
135 |
8 |
| OW |
0 |
11 |
46 |
180 |
261 |
185 |
169 |
4 |
| VODI |
0 |
1 |
34 |
112 |
208 |
357 |
515 |
2 |
| ODI |
0 |
0 |
8 |
68 |
98 |
207 |
1166 |
1 |
| CDI |
0 |
0 |
1 |
40 |
95 |
157 |
2565 |
0 |
| VCDI |
0 |
0 |
3 |
10 |
8 |
12 |
2147 |
4133 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14451 |
6717 |
1690 |
1447 |
823 |
419 |
397 |
0 |
| OW |
0 |
25 |
52 |
162 |
127 |
158 |
377 |
12 |
| VODI |
0 |
3 |
45 |
127 |
165 |
185 |
706 |
2 |
| ODI |
0 |
0 |
21 |
55 |
86 |
170 |
1029 |
1 |
| CDI |
0 |
0 |
2 |
73 |
110 |
162 |
1944 |
0 |
| VCDI |
0 |
0 |
3 |
10 |
10 |
16 |
2244 |
4133 |
|
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