Validation of sea ice concentration
Bulletin date: 2020-07-16
Model vs. observations, sea ice class contingency tables
Date: 2020-07-10:
| 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 |
20353 |
6195 |
1591 |
804 |
504 |
187 |
105 |
0 |
| OW |
0 |
1 |
55 |
193 |
223 |
116 |
127 |
0 |
| VODI |
0 |
0 |
15 |
91 |
166 |
250 |
482 |
2 |
| ODI |
0 |
0 |
2 |
53 |
37 |
208 |
1537 |
75 |
| CDI |
0 |
0 |
0 |
49 |
43 |
42 |
799 |
1595 |
| VCDI |
0 |
0 |
1 |
9 |
4 |
8 |
464 |
1773 |
|
...date precedes bulletin
|
Date: 2020-07-14:
| 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 |
20165 |
6176 |
2169 |
842 |
437 |
205 |
51 |
0 |
| OW |
0 |
1 |
83 |
168 |
122 |
99 |
72 |
7 |
| VODI |
0 |
0 |
29 |
133 |
167 |
193 |
165 |
41 |
| ODI |
0 |
0 |
0 |
43 |
52 |
332 |
606 |
54 |
| CDI |
0 |
0 |
0 |
35 |
30 |
69 |
2196 |
2475 |
| VCDI |
0 |
0 |
0 |
7 |
7 |
4 |
177 |
747 |
|
...date precedes bulletin
|
Date: 2020-07-16:
| 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 |
20159 |
6219 |
2148 |
901 |
446 |
200 |
43 |
0 |
| OW |
0 |
1 |
68 |
182 |
146 |
129 |
92 |
0 |
| VODI |
0 |
0 |
17 |
153 |
158 |
238 |
240 |
0 |
| ODI |
0 |
0 |
0 |
55 |
77 |
280 |
722 |
0 |
| CDI |
0 |
0 |
1 |
51 |
68 |
311 |
2605 |
1879 |
| VCDI |
0 |
0 |
0 |
9 |
4 |
9 |
244 |
304 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20159 |
6220 |
2155 |
950 |
477 |
214 |
50 |
0 |
| OW |
0 |
0 |
61 |
158 |
125 |
112 |
75 |
0 |
| VODI |
0 |
0 |
17 |
122 |
151 |
248 |
255 |
0 |
| ODI |
0 |
0 |
0 |
59 |
68 |
269 |
838 |
0 |
| CDI |
0 |
0 |
0 |
53 |
73 |
315 |
2511 |
1883 |
| VCDI |
0 |
0 |
1 |
9 |
5 |
9 |
217 |
300 |
|
Date: 2020-07-20:
| 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 |
20149 |
6267 |
2690 |
730 |
286 |
175 |
40 |
0 |
| OW |
0 |
0 |
103 |
156 |
116 |
48 |
50 |
0 |
| VODI |
0 |
0 |
33 |
154 |
157 |
116 |
159 |
0 |
| ODI |
0 |
0 |
2 |
28 |
188 |
245 |
709 |
8 |
| CDI |
0 |
0 |
2 |
1 |
51 |
74 |
2559 |
2711 |
| VCDI |
0 |
0 |
0 |
0 |
15 |
2 |
30 |
105 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20149 |
6267 |
2696 |
793 |
350 |
191 |
62 |
0 |
| OW |
0 |
0 |
98 |
136 |
123 |
85 |
116 |
0 |
| VODI |
0 |
0 |
32 |
114 |
171 |
158 |
450 |
0 |
| ODI |
0 |
0 |
2 |
20 |
85 |
127 |
1345 |
248 |
| CDI |
0 |
0 |
1 |
6 |
69 |
97 |
1532 |
2309 |
| VCDI |
0 |
0 |
1 |
0 |
15 |
2 |
42 |
267 |
|
Date: 2020-07-22:
| 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 |
20112 |
6331 |
2719 |
682 |
344 |
198 |
34 |
0 |
| OW |
0 |
1 |
72 |
154 |
140 |
84 |
48 |
0 |
| VODI |
0 |
0 |
17 |
82 |
176 |
178 |
194 |
0 |
| ODI |
0 |
0 |
2 |
22 |
110 |
209 |
850 |
3 |
| CDI |
0 |
0 |
1 |
3 |
62 |
77 |
2338 |
2875 |
| VCDI |
0 |
0 |
0 |
0 |
14 |
1 |
26 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20112 |
6331 |
2716 |
704 |
410 |
235 |
68 |
0 |
| OW |
0 |
1 |
71 |
150 |
147 |
126 |
118 |
0 |
| VODI |
0 |
0 |
21 |
62 |
141 |
199 |
519 |
1 |
| ODI |
0 |
0 |
2 |
16 |
61 |
95 |
1406 |
431 |
| CDI |
0 |
0 |
0 |
11 |
72 |
91 |
1348 |
2241 |
| VCDI |
0 |
0 |
1 |
0 |
15 |
1 |
31 |
205 |
|
Date: 2020-07-24:
| 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 |
20578 |
6206 |
2436 |
697 |
398 |
159 |
18 |
0 |
| OW |
0 |
0 |
75 |
150 |
149 |
90 |
54 |
0 |
| VODI |
0 |
0 |
18 |
68 |
152 |
187 |
266 |
2 |
| ODI |
0 |
0 |
0 |
18 |
75 |
215 |
991 |
22 |
| CDI |
0 |
0 |
1 |
7 |
75 |
85 |
2088 |
2835 |
| VCDI |
0 |
0 |
0 |
0 |
13 |
1 |
30 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20578 |
6206 |
2452 |
735 |
460 |
203 |
56 |
0 |
| OW |
0 |
0 |
65 |
138 |
160 |
121 |
149 |
0 |
| VODI |
0 |
0 |
12 |
40 |
112 |
219 |
604 |
4 |
| ODI |
0 |
0 |
0 |
13 |
41 |
110 |
1462 |
557 |
| CDI |
0 |
0 |
1 |
14 |
77 |
84 |
1152 |
2168 |
| VCDI |
0 |
0 |
0 |
0 |
12 |
0 |
24 |
130 |
|
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