Validation of sea ice concentration
Bulletin date: 2020-09-03
Model vs. observations, sea ice class contingency tables
Date: 2020-08-28:
| 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 |
24290 |
6379 |
821 |
631 |
159 |
42 |
6 |
0 |
| OW |
0 |
50 |
75 |
96 |
268 |
83 |
8 |
0 |
| VODI |
0 |
3 |
42 |
89 |
411 |
271 |
109 |
0 |
| ODI |
0 |
0 |
3 |
22 |
211 |
396 |
1084 |
8 |
| CDI |
0 |
0 |
0 |
1 |
49 |
130 |
1508 |
905 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
0 |
5 |
0 |
|
...date precedes bulletin
|
Date: 2020-09-01:
| 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 |
24181 |
7093 |
887 |
519 |
166 |
8 |
1 |
0 |
| OW |
0 |
24 |
70 |
183 |
184 |
28 |
6 |
0 |
| VODI |
0 |
1 |
18 |
129 |
278 |
203 |
111 |
0 |
| ODI |
0 |
0 |
0 |
30 |
143 |
364 |
983 |
8 |
| CDI |
0 |
0 |
0 |
5 |
4 |
16 |
1704 |
801 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
1 |
8 |
0 |
|
...date precedes bulletin
|
Date: 2020-09-03:
| 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 |
24974 |
6697 |
654 |
457 |
117 |
4 |
1 |
0 |
| OW |
0 |
59 |
82 |
220 |
152 |
20 |
2 |
0 |
| VODI |
0 |
3 |
38 |
160 |
249 |
195 |
109 |
0 |
| ODI |
0 |
0 |
1 |
36 |
110 |
360 |
771 |
5 |
| CDI |
0 |
0 |
0 |
7 |
17 |
42 |
1859 |
744 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
3 |
10 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24974 |
6728 |
665 |
536 |
168 |
7 |
1 |
0 |
| OW |
0 |
30 |
72 |
151 |
140 |
35 |
4 |
0 |
| VODI |
0 |
1 |
36 |
142 |
211 |
180 |
127 |
0 |
| ODI |
0 |
0 |
2 |
41 |
103 |
348 |
776 |
6 |
| CDI |
0 |
0 |
0 |
10 |
23 |
50 |
1832 |
743 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
4 |
12 |
0 |
|
Date: 2020-09-07:
| 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 |
25227 |
6564 |
564 |
386 |
135 |
12 |
4 |
0 |
| OW |
0 |
23 |
100 |
142 |
214 |
20 |
6 |
0 |
| VODI |
0 |
3 |
53 |
134 |
265 |
93 |
29 |
0 |
| ODI |
0 |
0 |
1 |
33 |
174 |
512 |
278 |
0 |
| CDI |
0 |
0 |
0 |
2 |
39 |
378 |
1774 |
291 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
5 |
421 |
276 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
25227 |
6516 |
548 |
403 |
257 |
17 |
3 |
0 |
| OW |
0 |
50 |
94 |
108 |
171 |
46 |
10 |
0 |
| VODI |
0 |
24 |
64 |
120 |
229 |
195 |
73 |
0 |
| ODI |
0 |
0 |
12 |
60 |
136 |
400 |
461 |
0 |
| CDI |
0 |
0 |
0 |
5 |
34 |
355 |
1956 |
567 |
| VCDI |
0 |
0 |
0 |
1 |
1 |
7 |
9 |
0 |
|
Date: 2020-09-09:
| 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 |
24832 |
6745 |
766 |
303 |
191 |
27 |
10 |
0 |
| OW |
0 |
63 |
81 |
94 |
198 |
33 |
11 |
0 |
| VODI |
0 |
7 |
76 |
94 |
227 |
94 |
36 |
0 |
| ODI |
0 |
0 |
9 |
44 |
236 |
362 |
189 |
0 |
| CDI |
0 |
0 |
0 |
5 |
51 |
480 |
1974 |
191 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
2 |
388 |
339 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24832 |
6731 |
736 |
290 |
248 |
26 |
12 |
0 |
| OW |
0 |
53 |
84 |
103 |
148 |
45 |
6 |
0 |
| VODI |
0 |
31 |
83 |
89 |
247 |
183 |
88 |
0 |
| ODI |
0 |
0 |
26 |
48 |
179 |
292 |
348 |
0 |
| CDI |
0 |
0 |
3 |
10 |
80 |
442 |
2105 |
425 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
10 |
49 |
105 |
|
Date: 2020-09-11:
| 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 |
24709 |
6901 |
711 |
285 |
116 |
32 |
4 |
0 |
| OW |
0 |
55 |
162 |
104 |
155 |
32 |
5 |
0 |
| VODI |
0 |
14 |
113 |
139 |
171 |
58 |
36 |
0 |
| ODI |
0 |
0 |
20 |
79 |
188 |
239 |
124 |
0 |
| CDI |
0 |
0 |
0 |
7 |
66 |
514 |
1553 |
4 |
| VCDI |
0 |
0 |
0 |
1 |
0 |
8 |
983 |
571 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24709 |
6909 |
695 |
303 |
152 |
29 |
2 |
0 |
| OW |
0 |
45 |
154 |
94 |
136 |
36 |
7 |
0 |
| VODI |
0 |
16 |
124 |
136 |
187 |
124 |
79 |
0 |
| ODI |
0 |
0 |
31 |
73 |
175 |
231 |
236 |
0 |
| CDI |
0 |
0 |
2 |
8 |
40 |
441 |
1954 |
111 |
| VCDI |
0 |
0 |
0 |
1 |
6 |
22 |
427 |
464 |
|
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