Validation of sea ice concentration - Asian sector
Bulletin date: 2023-12-07
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-12-01:
| 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 |
150 |
775 |
86 |
71 |
7 |
0 |
0 |
0 |
| OW |
0 |
194 |
77 |
180 |
79 |
0 |
0 |
0 |
| VODI |
0 |
38 |
66 |
287 |
147 |
0 |
0 |
0 |
| ODI |
0 |
3 |
9 |
120 |
261 |
15 |
0 |
0 |
| CDI |
0 |
0 |
1 |
68 |
203 |
256 |
42 |
5 |
| VCDI |
0 |
0 |
0 |
21 |
154 |
1799 |
8518 |
19464 |
|
...date precedes bulletin
|
Date: 2023-12-03:
| 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 |
150 |
660 |
64 |
42 |
0 |
0 |
0 |
0 |
| OW |
0 |
171 |
61 |
214 |
34 |
0 |
0 |
0 |
| VODI |
0 |
28 |
47 |
259 |
143 |
0 |
0 |
0 |
| ODI |
0 |
7 |
7 |
119 |
314 |
32 |
0 |
0 |
| CDI |
0 |
0 |
3 |
68 |
172 |
235 |
11 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
110 |
820 |
3975 |
25349 |
|
...date precedes bulletin
|
Date: 2023-12-05:
| 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 |
522 |
57 |
40 |
0 |
0 |
0 |
0 |
| OW |
0 |
56 |
82 |
204 |
8 |
0 |
0 |
0 |
| VODI |
0 |
3 |
11 |
346 |
125 |
0 |
0 |
0 |
| ODI |
0 |
0 |
1 |
87 |
358 |
30 |
0 |
0 |
| CDI |
0 |
0 |
0 |
12 |
274 |
346 |
50 |
5 |
| VCDI |
0 |
0 |
0 |
0 |
24 |
751 |
6208 |
23346 |
|
...date precedes bulletin
|
Date: 2023-12-07:
| 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 |
143 |
296 |
16 |
136 |
0 |
0 |
0 |
0 |
| OW |
7 |
27 |
31 |
185 |
46 |
0 |
0 |
0 |
| VODI |
0 |
1 |
5 |
191 |
250 |
13 |
0 |
0 |
| ODI |
0 |
0 |
0 |
29 |
285 |
174 |
0 |
0 |
| CDI |
0 |
0 |
0 |
2 |
137 |
419 |
73 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
571 |
6994 |
23062 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
142 |
297 |
16 |
122 |
3 |
0 |
0 |
0 |
| OW |
7 |
27 |
32 |
209 |
61 |
0 |
0 |
0 |
| VODI |
1 |
0 |
4 |
173 |
258 |
19 |
0 |
0 |
| ODI |
0 |
0 |
0 |
36 |
273 |
198 |
0 |
0 |
| CDI |
0 |
0 |
0 |
3 |
122 |
417 |
78 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
543 |
6989 |
23062 |
|
Date: 2023-12-09:
| 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 |
139 |
286 |
2 |
22 |
36 |
0 |
0 |
0 |
| OW |
15 |
32 |
22 |
73 |
179 |
5 |
0 |
0 |
| VODI |
4 |
2 |
10 |
70 |
229 |
96 |
1 |
0 |
| ODI |
0 |
0 |
0 |
25 |
172 |
256 |
20 |
0 |
| CDI |
0 |
0 |
0 |
4 |
84 |
453 |
143 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
20 |
309 |
5188 |
25199 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
138 |
290 |
6 |
27 |
7 |
0 |
0 |
0 |
| OW |
14 |
29 |
18 |
77 |
209 |
5 |
0 |
0 |
| VODI |
6 |
1 |
10 |
61 |
234 |
111 |
0 |
0 |
| ODI |
0 |
0 |
0 |
24 |
172 |
255 |
44 |
0 |
| CDI |
0 |
0 |
0 |
5 |
76 |
467 |
156 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
22 |
281 |
5152 |
25199 |
|
Date: 2023-12-11:
| 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 |
133 |
428 |
7 |
1 |
0 |
0 |
0 |
0 |
| OW |
14 |
321 |
170 |
70 |
11 |
0 |
0 |
0 |
| VODI |
4 |
11 |
17 |
461 |
70 |
0 |
0 |
0 |
| ODI |
0 |
4 |
5 |
109 |
360 |
6 |
0 |
0 |
| CDI |
0 |
2 |
8 |
82 |
178 |
276 |
20 |
5 |
| VCDI |
0 |
0 |
0 |
47 |
224 |
735 |
6175 |
23142 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
127 |
364 |
4 |
1 |
0 |
0 |
0 |
0 |
| OW |
16 |
251 |
46 |
35 |
16 |
0 |
0 |
0 |
| VODI |
8 |
111 |
99 |
209 |
47 |
0 |
0 |
0 |
| ODI |
0 |
21 |
32 |
240 |
240 |
8 |
0 |
0 |
| CDI |
0 |
14 |
16 |
152 |
280 |
169 |
23 |
4 |
| VCDI |
0 |
5 |
10 |
133 |
260 |
840 |
6172 |
23143 |
|
Date: 2023-12-13:
| 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 |
144 |
495 |
14 |
2 |
0 |
0 |
0 |
0 |
| OW |
7 |
449 |
59 |
87 |
5 |
0 |
0 |
0 |
| VODI |
1 |
149 |
97 |
279 |
110 |
0 |
0 |
0 |
| ODI |
0 |
30 |
19 |
134 |
243 |
10 |
0 |
0 |
| CDI |
0 |
34 |
13 |
102 |
170 |
217 |
50 |
3 |
| VCDI |
0 |
27 |
22 |
155 |
267 |
1290 |
6666 |
21746 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
126 |
361 |
0 |
1 |
0 |
0 |
0 |
0 |
| OW |
15 |
310 |
35 |
49 |
0 |
0 |
0 |
0 |
| VODI |
11 |
246 |
77 |
165 |
68 |
0 |
0 |
0 |
| ODI |
0 |
117 |
44 |
193 |
213 |
14 |
0 |
0 |
| CDI |
0 |
80 |
34 |
146 |
215 |
193 |
47 |
3 |
| VCDI |
0 |
70 |
34 |
205 |
299 |
1310 |
6669 |
21746 |
|
Date: 2023-12-15:
| 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 |
154 |
423 |
13 |
1 |
0 |
0 |
0 |
0 |
| OW |
5 |
247 |
36 |
109 |
31 |
0 |
0 |
0 |
| VODI |
0 |
181 |
69 |
335 |
222 |
23 |
0 |
0 |
| ODI |
0 |
51 |
24 |
80 |
203 |
113 |
0 |
0 |
| CDI |
0 |
32 |
26 |
107 |
146 |
337 |
32 |
0 |
| VCDI |
0 |
35 |
24 |
109 |
322 |
1723 |
5847 |
22036 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
133 |
335 |
6 |
7 |
0 |
0 |
0 |
0 |
| OW |
15 |
140 |
31 |
65 |
5 |
0 |
0 |
0 |
| VODI |
11 |
196 |
53 |
273 |
153 |
8 |
0 |
0 |
| ODI |
0 |
101 |
18 |
124 |
222 |
61 |
0 |
0 |
| CDI |
0 |
128 |
46 |
100 |
123 |
269 |
16 |
0 |
| VCDI |
0 |
69 |
38 |
172 |
421 |
1858 |
5863 |
22036 |
|
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