Validation of sea ice concentration
Bulletin date: 2020-06-11
Model vs. observations, sea ice class contingency tables
Date: 2020-06-05:
| 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 |
14437 |
6584 |
2082 |
1295 |
711 |
325 |
121 |
12 |
| OW |
0 |
5 |
59 |
240 |
261 |
229 |
119 |
0 |
| VODI |
0 |
0 |
33 |
140 |
254 |
499 |
482 |
4 |
| ODI |
0 |
0 |
9 |
37 |
105 |
230 |
1179 |
4 |
| CDI |
0 |
0 |
0 |
7 |
48 |
122 |
2045 |
10 |
| VCDI |
0 |
0 |
0 |
3 |
5 |
18 |
1977 |
4468 |
|
...date precedes bulletin
|
Date: 2020-06-09:
| 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 |
15377 |
6124 |
2604 |
1104 |
522 |
170 |
120 |
12 |
| OW |
0 |
0 |
68 |
249 |
242 |
167 |
76 |
0 |
| VODI |
0 |
0 |
16 |
159 |
266 |
464 |
263 |
3 |
| ODI |
0 |
0 |
5 |
24 |
103 |
395 |
875 |
5 |
| CDI |
0 |
0 |
0 |
27 |
72 |
216 |
1476 |
22 |
| VCDI |
0 |
0 |
0 |
5 |
5 |
31 |
2597 |
4295 |
|
...date precedes bulletin
|
Date: 2020-06-11:
| 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 |
15446 |
6592 |
2129 |
1076 |
545 |
226 |
113 |
12 |
| OW |
0 |
4 |
54 |
252 |
305 |
229 |
91 |
0 |
| VODI |
0 |
0 |
28 |
117 |
279 |
466 |
408 |
2 |
| ODI |
0 |
0 |
11 |
27 |
60 |
278 |
1040 |
1 |
| CDI |
0 |
0 |
2 |
36 |
59 |
139 |
1671 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
8 |
25 |
2148 |
4275 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15446 |
6593 |
2125 |
1155 |
592 |
259 |
118 |
12 |
| OW |
0 |
3 |
60 |
181 |
276 |
193 |
85 |
0 |
| VODI |
0 |
0 |
29 |
112 |
268 |
498 |
364 |
2 |
| ODI |
0 |
0 |
8 |
23 |
53 |
264 |
1043 |
1 |
| CDI |
0 |
0 |
2 |
36 |
59 |
126 |
1686 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
8 |
23 |
2175 |
4275 |
|
Date: 2020-06-15:
| 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 |
15092 |
7058 |
2088 |
1135 |
631 |
279 |
176 |
12 |
| OW |
0 |
1 |
105 |
206 |
221 |
155 |
98 |
0 |
| VODI |
0 |
0 |
35 |
150 |
293 |
388 |
322 |
4 |
| ODI |
0 |
0 |
5 |
37 |
132 |
454 |
679 |
4 |
| CDI |
0 |
0 |
2 |
25 |
76 |
185 |
1647 |
22 |
| VCDI |
0 |
0 |
1 |
1 |
3 |
5 |
2034 |
4398 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15092 |
7046 |
2078 |
1210 |
744 |
354 |
236 |
12 |
| OW |
0 |
13 |
96 |
155 |
221 |
240 |
182 |
0 |
| VODI |
0 |
0 |
45 |
117 |
200 |
435 |
687 |
4 |
| ODI |
0 |
0 |
12 |
44 |
97 |
273 |
488 |
9 |
| CDI |
0 |
0 |
4 |
27 |
91 |
158 |
1840 |
12 |
| VCDI |
0 |
0 |
1 |
1 |
3 |
6 |
1523 |
4403 |
|
Date: 2020-06-17:
| 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 |
15242 |
6892 |
2123 |
1278 |
697 |
325 |
119 |
12 |
| OW |
0 |
3 |
91 |
172 |
333 |
220 |
140 |
0 |
| VODI |
0 |
0 |
18 |
80 |
284 |
571 |
358 |
3 |
| ODI |
0 |
0 |
3 |
27 |
73 |
365 |
516 |
4 |
| CDI |
0 |
0 |
3 |
35 |
74 |
127 |
1635 |
7 |
| VCDI |
0 |
0 |
0 |
6 |
11 |
9 |
1841 |
4462 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15242 |
6872 |
2106 |
1311 |
825 |
406 |
207 |
12 |
| OW |
0 |
19 |
87 |
118 |
294 |
318 |
224 |
0 |
| VODI |
0 |
4 |
29 |
96 |
197 |
564 |
451 |
4 |
| ODI |
0 |
0 |
12 |
29 |
72 |
212 |
469 |
7 |
| CDI |
0 |
0 |
4 |
38 |
82 |
114 |
2035 |
9 |
| VCDI |
0 |
0 |
0 |
6 |
2 |
3 |
1223 |
4456 |
|
Date: 2020-06-19:
| 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 |
15221 |
6981 |
2076 |
1666 |
577 |
264 |
145 |
12 |
| OW |
0 |
3 |
68 |
211 |
375 |
229 |
165 |
0 |
| VODI |
0 |
0 |
15 |
103 |
238 |
495 |
446 |
2 |
| ODI |
0 |
0 |
3 |
31 |
49 |
226 |
609 |
1 |
| CDI |
0 |
0 |
0 |
33 |
59 |
117 |
1624 |
9 |
| VCDI |
0 |
0 |
0 |
5 |
6 |
8 |
1596 |
4491 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15221 |
6938 |
1982 |
1720 |
736 |
392 |
298 |
12 |
| OW |
0 |
35 |
137 |
132 |
282 |
309 |
258 |
0 |
| VODI |
0 |
10 |
27 |
111 |
169 |
401 |
450 |
2 |
| ODI |
0 |
1 |
14 |
40 |
54 |
121 |
592 |
1 |
| CDI |
0 |
0 |
2 |
43 |
58 |
114 |
2043 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
5 |
2 |
944 |
4500 |
|
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