Validation of sea ice concentration
Bulletin date: 2020-08-06
Model vs. observations, sea ice class contingency tables
Date: 2020-07-31:
| 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 |
21159 |
6177 |
2457 |
687 |
378 |
83 |
47 |
0 |
| OW |
0 |
0 |
69 |
124 |
135 |
90 |
126 |
0 |
| VODI |
0 |
0 |
29 |
46 |
119 |
130 |
462 |
0 |
| ODI |
0 |
0 |
2 |
46 |
62 |
113 |
1525 |
1 |
| CDI |
0 |
0 |
0 |
11 |
34 |
28 |
1947 |
2059 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
13 |
0 |
|
...date precedes bulletin
|
Date: 2020-08-04:
| 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 |
22288 |
5855 |
1902 |
712 |
246 |
172 |
47 |
0 |
| OW |
0 |
0 |
48 |
166 |
101 |
95 |
89 |
0 |
| VODI |
0 |
0 |
11 |
103 |
150 |
176 |
247 |
0 |
| ODI |
0 |
0 |
4 |
39 |
123 |
289 |
1540 |
153 |
| CDI |
0 |
0 |
4 |
3 |
18 |
118 |
2009 |
1439 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
0 |
10 |
0 |
|
...date precedes bulletin
|
Date: 2020-08-06:
| 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 |
23132 |
5767 |
1384 |
655 |
153 |
72 |
61 |
0 |
| OW |
0 |
4 |
77 |
174 |
77 |
70 |
126 |
0 |
| VODI |
0 |
1 |
22 |
148 |
104 |
132 |
424 |
0 |
| ODI |
0 |
0 |
1 |
30 |
71 |
226 |
1771 |
428 |
| CDI |
0 |
0 |
2 |
12 |
16 |
64 |
1481 |
1461 |
| VCDI |
0 |
0 |
0 |
2 |
0 |
2 |
9 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
23132 |
5769 |
1401 |
669 |
162 |
90 |
78 |
0 |
| OW |
0 |
3 |
60 |
157 |
65 |
51 |
117 |
0 |
| VODI |
0 |
0 |
22 |
143 |
101 |
134 |
443 |
0 |
| ODI |
0 |
0 |
3 |
36 |
73 |
219 |
1711 |
451 |
| CDI |
0 |
0 |
0 |
15 |
20 |
67 |
1513 |
1438 |
| VCDI |
0 |
0 |
0 |
1 |
0 |
5 |
10 |
0 |
|
Date: 2020-08-10:
| 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 |
23352 |
6131 |
1079 |
470 |
210 |
135 |
79 |
0 |
| OW |
0 |
2 |
67 |
160 |
78 |
80 |
62 |
0 |
| VODI |
0 |
0 |
22 |
141 |
165 |
242 |
230 |
0 |
| ODI |
0 |
0 |
4 |
70 |
123 |
291 |
1488 |
247 |
| CDI |
0 |
0 |
2 |
4 |
6 |
14 |
1518 |
1605 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
2 |
30 |
50 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
23352 |
6119 |
1048 |
495 |
229 |
170 |
133 |
0 |
| OW |
0 |
14 |
88 |
99 |
63 |
82 |
166 |
0 |
| VODI |
0 |
0 |
32 |
149 |
142 |
227 |
618 |
38 |
| ODI |
0 |
0 |
6 |
68 |
106 |
229 |
1375 |
738 |
| CDI |
0 |
0 |
0 |
33 |
42 |
54 |
1102 |
1126 |
| VCDI |
0 |
0 |
0 |
1 |
0 |
2 |
13 |
0 |
|
Date: 2020-08-12:
| 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 |
23376 |
5995 |
1075 |
640 |
307 |
161 |
105 |
0 |
| OW |
0 |
0 |
27 |
121 |
144 |
123 |
87 |
0 |
| VODI |
0 |
0 |
10 |
59 |
172 |
344 |
320 |
1 |
| ODI |
0 |
0 |
0 |
31 |
82 |
262 |
1639 |
331 |
| CDI |
0 |
0 |
0 |
6 |
5 |
12 |
1252 |
1448 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
2 |
10 |
12 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
23376 |
5993 |
1048 |
607 |
315 |
185 |
167 |
0 |
| OW |
0 |
2 |
59 |
88 |
119 |
140 |
183 |
0 |
| VODI |
0 |
0 |
5 |
104 |
168 |
291 |
785 |
34 |
| ODI |
0 |
0 |
0 |
35 |
67 |
219 |
1335 |
888 |
| CDI |
0 |
0 |
0 |
22 |
41 |
67 |
932 |
870 |
| VCDI |
0 |
0 |
0 |
1 |
0 |
2 |
11 |
0 |
|
Date: 2020-08-14:
| 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 |
22865 |
6213 |
1650 |
605 |
322 |
139 |
48 |
0 |
| OW |
0 |
1 |
69 |
146 |
174 |
120 |
75 |
0 |
| VODI |
0 |
0 |
18 |
120 |
200 |
341 |
299 |
0 |
| ODI |
0 |
0 |
4 |
35 |
75 |
490 |
1856 |
183 |
| CDI |
0 |
0 |
2 |
4 |
8 |
34 |
1138 |
906 |
| VCDI |
0 |
0 |
0 |
0 |
5 |
6 |
8 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
22865 |
6212 |
1619 |
590 |
343 |
155 |
103 |
0 |
| OW |
0 |
2 |
90 |
143 |
136 |
168 |
149 |
0 |
| VODI |
0 |
0 |
25 |
106 |
191 |
336 |
901 |
9 |
| ODI |
0 |
0 |
8 |
47 |
81 |
344 |
1382 |
642 |
| CDI |
0 |
0 |
0 |
24 |
28 |
122 |
886 |
438 |
| VCDI |
0 |
0 |
1 |
0 |
5 |
5 |
3 |
0 |
|
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