Validation of sea ice concentration - Asian sector
Bulletin date: 2023-11-30
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-11-24:
| 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 |
151 |
1289 |
116 |
52 |
0 |
0 |
0 |
0 |
| OW |
0 |
188 |
67 |
115 |
0 |
0 |
0 |
0 |
| VODI |
0 |
159 |
44 |
177 |
3 |
0 |
0 |
0 |
| ODI |
0 |
51 |
44 |
119 |
20 |
4 |
0 |
0 |
| CDI |
0 |
9 |
22 |
150 |
188 |
107 |
15 |
0 |
| VCDI |
0 |
2 |
17 |
140 |
271 |
631 |
5912 |
23033 |
|
...date precedes bulletin
|
Date: 2023-11-26:
| 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 |
150 |
1231 |
93 |
32 |
0 |
0 |
0 |
0 |
| OW |
0 |
207 |
66 |
144 |
7 |
0 |
0 |
0 |
| VODI |
0 |
129 |
14 |
219 |
48 |
0 |
0 |
0 |
| ODI |
0 |
52 |
13 |
156 |
40 |
3 |
0 |
0 |
| CDI |
0 |
39 |
13 |
123 |
151 |
79 |
79 |
0 |
| VCDI |
0 |
54 |
23 |
169 |
328 |
589 |
5549 |
23296 |
|
...date precedes bulletin
|
Date: 2023-11-28:
| 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 |
151 |
1083 |
118 |
77 |
0 |
0 |
0 |
0 |
| OW |
0 |
224 |
59 |
226 |
1 |
0 |
0 |
0 |
| VODI |
0 |
39 |
25 |
286 |
76 |
0 |
0 |
0 |
| ODI |
0 |
12 |
7 |
100 |
242 |
20 |
0 |
0 |
| CDI |
0 |
13 |
8 |
68 |
278 |
238 |
6 |
0 |
| VCDI |
0 |
40 |
23 |
100 |
266 |
1438 |
7788 |
20084 |
|
...date precedes bulletin
|
Date: 2023-11-30:
| 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 |
150 |
892 |
79 |
75 |
8 |
0 |
0 |
0 |
| OW |
0 |
225 |
97 |
136 |
70 |
0 |
0 |
0 |
| VODI |
0 |
37 |
69 |
274 |
108 |
0 |
0 |
0 |
| ODI |
0 |
13 |
4 |
138 |
249 |
8 |
0 |
0 |
| CDI |
0 |
5 |
22 |
107 |
265 |
348 |
31 |
11 |
| VCDI |
0 |
0 |
0 |
61 |
211 |
1803 |
11249 |
16351 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
150 |
893 |
79 |
79 |
42 |
0 |
0 |
0 |
| OW |
0 |
207 |
96 |
140 |
41 |
0 |
0 |
0 |
| VODI |
0 |
54 |
68 |
276 |
112 |
0 |
0 |
0 |
| ODI |
0 |
13 |
6 |
129 |
238 |
5 |
0 |
0 |
| CDI |
0 |
5 |
21 |
105 |
275 |
357 |
33 |
15 |
| VCDI |
0 |
0 |
1 |
62 |
203 |
1797 |
11247 |
16347 |
|
Date: 2023-12-02:
| 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 |
150 |
746 |
63 |
47 |
0 |
0 |
0 |
0 |
| OW |
0 |
177 |
95 |
189 |
42 |
0 |
0 |
0 |
| VODI |
0 |
66 |
50 |
281 |
115 |
0 |
0 |
0 |
| ODI |
0 |
5 |
10 |
100 |
328 |
21 |
0 |
0 |
| CDI |
0 |
0 |
2 |
54 |
164 |
231 |
16 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
128 |
1121 |
7267 |
21626 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
150 |
746 |
69 |
65 |
3 |
0 |
0 |
0 |
| OW |
0 |
167 |
80 |
187 |
37 |
0 |
0 |
0 |
| VODI |
0 |
77 |
58 |
267 |
130 |
0 |
0 |
0 |
| ODI |
0 |
4 |
12 |
101 |
297 |
20 |
0 |
0 |
| CDI |
0 |
0 |
1 |
51 |
183 |
240 |
12 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
127 |
1113 |
7271 |
21626 |
|
Date: 2023-12-04:
| 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 |
150 |
610 |
53 |
22 |
0 |
0 |
0 |
0 |
| OW |
0 |
99 |
99 |
175 |
5 |
0 |
0 |
0 |
| VODI |
0 |
5 |
15 |
406 |
84 |
4 |
0 |
0 |
| ODI |
0 |
0 |
0 |
71 |
462 |
6 |
0 |
0 |
| CDI |
0 |
0 |
0 |
9 |
251 |
356 |
19 |
3 |
| VCDI |
0 |
0 |
0 |
0 |
16 |
702 |
5051 |
24423 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
150 |
546 |
59 |
95 |
10 |
0 |
0 |
0 |
| OW |
0 |
133 |
64 |
203 |
37 |
5 |
0 |
0 |
| VODI |
0 |
29 |
34 |
241 |
177 |
0 |
0 |
0 |
| ODI |
0 |
6 |
5 |
89 |
295 |
44 |
0 |
0 |
| CDI |
0 |
0 |
5 |
51 |
218 |
191 |
5 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
81 |
828 |
5065 |
24426 |
|
Date: 2023-12-06:
| 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 |
148 |
407 |
76 |
57 |
0 |
0 |
0 |
0 |
| OW |
2 |
40 |
51 |
188 |
29 |
0 |
0 |
0 |
| VODI |
0 |
4 |
6 |
287 |
172 |
2 |
0 |
0 |
| ODI |
0 |
0 |
0 |
60 |
349 |
70 |
0 |
0 |
| CDI |
0 |
0 |
0 |
11 |
201 |
362 |
53 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
51 |
741 |
6490 |
23239 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
146 |
382 |
47 |
72 |
17 |
0 |
0 |
0 |
| OW |
4 |
56 |
58 |
182 |
77 |
2 |
0 |
0 |
| VODI |
0 |
9 |
24 |
226 |
191 |
31 |
0 |
0 |
| ODI |
0 |
4 |
4 |
79 |
287 |
122 |
0 |
0 |
| CDI |
0 |
0 |
0 |
41 |
129 |
253 |
27 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
101 |
767 |
6516 |
23239 |
|
Date: 2023-12-08:
| 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 |
138 |
289 |
9 |
61 |
5 |
0 |
0 |
0 |
| OW |
11 |
31 |
23 |
179 |
96 |
0 |
0 |
0 |
| VODI |
2 |
0 |
6 |
135 |
244 |
35 |
0 |
0 |
| ODI |
0 |
0 |
0 |
20 |
261 |
190 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
115 |
424 |
110 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
479 |
6778 |
23451 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
133 |
261 |
8 |
113 |
23 |
5 |
0 |
0 |
| OW |
13 |
44 |
6 |
101 |
163 |
14 |
0 |
0 |
| VODI |
5 |
14 |
24 |
121 |
180 |
104 |
14 |
0 |
| ODI |
0 |
1 |
0 |
54 |
241 |
234 |
1 |
0 |
| CDI |
0 |
0 |
0 |
6 |
101 |
282 |
59 |
7 |
| VCDI |
0 |
0 |
0 |
0 |
17 |
489 |
6814 |
23444 |
|
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