Validation of sea ice concentration
Bulletin date: 2022-05-19
Model vs. observations, sea ice class contingency tables
Date: 2022-05-13:
| 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 |
12614 |
6450 |
805 |
662 |
176 |
133 |
132 |
0 |
| OW |
0 |
18 |
69 |
185 |
74 |
47 |
92 |
0 |
| VODI |
0 |
2 |
38 |
178 |
108 |
101 |
140 |
0 |
| ODI |
0 |
2 |
19 |
142 |
149 |
170 |
276 |
0 |
| CDI |
0 |
0 |
2 |
137 |
166 |
417 |
1476 |
4 |
| VCDI |
0 |
0 |
0 |
103 |
148 |
551 |
7961 |
4412 |
|
...date precedes bulletin
|
Date: 2022-05-17:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2022-05-19:
| 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 |
12650 |
6519 |
906 |
758 |
260 |
96 |
53 |
0 |
| OW |
0 |
22 |
63 |
194 |
145 |
90 |
67 |
0 |
| VODI |
0 |
16 |
76 |
174 |
160 |
157 |
187 |
0 |
| ODI |
0 |
5 |
38 |
105 |
163 |
243 |
414 |
0 |
| CDI |
0 |
0 |
27 |
134 |
209 |
631 |
1733 |
4 |
| VCDI |
0 |
0 |
70 |
179 |
191 |
336 |
6643 |
4441 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12650 |
6523 |
904 |
772 |
277 |
99 |
79 |
0 |
| OW |
0 |
24 |
71 |
178 |
140 |
98 |
44 |
0 |
| VODI |
0 |
14 |
69 |
177 |
147 |
151 |
178 |
0 |
| ODI |
0 |
1 |
37 |
105 |
144 |
211 |
384 |
0 |
| CDI |
0 |
0 |
27 |
133 |
226 |
629 |
1713 |
5 |
| VCDI |
0 |
0 |
72 |
179 |
194 |
365 |
6699 |
4440 |
|
Date: 2022-05-23:
| 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 |
13842 |
5593 |
1031 |
461 |
208 |
86 |
34 |
0 |
| OW |
3 |
24 |
115 |
195 |
134 |
84 |
24 |
0 |
| VODI |
0 |
0 |
92 |
202 |
255 |
253 |
91 |
0 |
| ODI |
0 |
0 |
43 |
122 |
243 |
624 |
330 |
0 |
| CDI |
0 |
0 |
56 |
122 |
294 |
741 |
2344 |
1 |
| VCDI |
0 |
0 |
27 |
41 |
95 |
193 |
5810 |
4346 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13845 |
5595 |
1055 |
531 |
262 |
140 |
50 |
0 |
| OW |
0 |
15 |
55 |
127 |
127 |
115 |
52 |
0 |
| VODI |
0 |
7 |
70 |
166 |
185 |
238 |
158 |
0 |
| ODI |
0 |
0 |
54 |
110 |
195 |
298 |
315 |
0 |
| CDI |
0 |
0 |
67 |
120 |
283 |
834 |
2134 |
2 |
| VCDI |
0 |
0 |
63 |
89 |
177 |
356 |
5924 |
4345 |
|
Date: 2022-05-25:
| 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 |
13977 |
5669 |
1081 |
638 |
120 |
24 |
35 |
0 |
| OW |
3 |
5 |
96 |
267 |
173 |
51 |
26 |
4 |
| VODI |
0 |
0 |
56 |
299 |
295 |
207 |
104 |
5 |
| ODI |
0 |
0 |
47 |
196 |
331 |
398 |
475 |
2 |
| CDI |
0 |
0 |
18 |
146 |
278 |
750 |
2290 |
8 |
| VCDI |
0 |
0 |
18 |
54 |
145 |
246 |
5808 |
3814 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13980 |
5658 |
1069 |
665 |
193 |
49 |
55 |
1 |
| OW |
0 |
12 |
64 |
227 |
114 |
77 |
50 |
3 |
| VODI |
0 |
4 |
50 |
258 |
207 |
153 |
184 |
5 |
| ODI |
0 |
0 |
48 |
135 |
253 |
214 |
438 |
2 |
| CDI |
0 |
0 |
60 |
186 |
314 |
768 |
2051 |
0 |
| VCDI |
0 |
0 |
25 |
129 |
261 |
415 |
5960 |
3822 |
|
Date: 2022-05-27:
| 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 |
13607 |
5462 |
1812 |
760 |
158 |
21 |
31 |
10 |
| OW |
1 |
2 |
87 |
324 |
150 |
61 |
45 |
6 |
| VODI |
0 |
0 |
55 |
333 |
295 |
170 |
128 |
4 |
| ODI |
0 |
0 |
41 |
316 |
439 |
397 |
289 |
1 |
| CDI |
0 |
1 |
11 |
225 |
436 |
1142 |
1870 |
0 |
| VCDI |
0 |
0 |
15 |
70 |
211 |
552 |
4604 |
4017 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13608 |
5447 |
1707 |
772 |
219 |
45 |
59 |
11 |
| OW |
0 |
16 |
95 |
237 |
114 |
87 |
80 |
5 |
| VODI |
0 |
1 |
73 |
249 |
186 |
192 |
222 |
5 |
| ODI |
0 |
0 |
60 |
204 |
217 |
239 |
256 |
0 |
| CDI |
0 |
1 |
41 |
305 |
432 |
998 |
1332 |
86 |
| VCDI |
0 |
0 |
45 |
261 |
521 |
782 |
5018 |
3931 |
|
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