Validation of sea ice concentration - Asian sector
Bulletin date: 2023-10-05
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-09-29:
| 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 |
12634 |
4715 |
78 |
118 |
24 |
0 |
0 |
0 |
| OW |
0 |
930 |
149 |
293 |
56 |
0 |
0 |
0 |
| VODI |
0 |
105 |
122 |
665 |
390 |
36 |
0 |
0 |
| ODI |
0 |
0 |
5 |
144 |
1110 |
479 |
0 |
0 |
| CDI |
0 |
0 |
0 |
29 |
431 |
2013 |
87 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
44 |
696 |
4901 |
1828 |
|
...date precedes bulletin
|
Date: 2023-10-01:
| 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 |
11354 |
5322 |
103 |
138 |
19 |
0 |
0 |
0 |
| OW |
0 |
773 |
214 |
301 |
144 |
2 |
0 |
0 |
| VODI |
0 |
68 |
60 |
565 |
610 |
188 |
0 |
0 |
| ODI |
0 |
0 |
0 |
77 |
456 |
945 |
56 |
0 |
| CDI |
0 |
0 |
0 |
0 |
111 |
2107 |
434 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
256 |
4646 |
3129 |
|
...date precedes bulletin
|
Date: 2023-10-03:
| 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 |
9746 |
7205 |
193 |
115 |
2 |
0 |
0 |
0 |
| OW |
0 |
264 |
151 |
261 |
15 |
0 |
0 |
0 |
| VODI |
0 |
17 |
24 |
476 |
173 |
9 |
0 |
0 |
| ODI |
0 |
0 |
3 |
88 |
543 |
130 |
0 |
0 |
| CDI |
0 |
0 |
0 |
12 |
592 |
2036 |
246 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
50 |
1499 |
6124 |
2108 |
|
...date precedes bulletin
|
Date: 2023-10-05:
| 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 |
10718 |
5880 |
108 |
105 |
18 |
0 |
0 |
0 |
| OW |
0 |
563 |
138 |
220 |
50 |
3 |
0 |
0 |
| VODI |
0 |
107 |
85 |
305 |
190 |
57 |
0 |
0 |
| ODI |
0 |
16 |
19 |
185 |
214 |
228 |
1 |
0 |
| CDI |
0 |
1 |
12 |
68 |
420 |
1312 |
519 |
0 |
| VCDI |
0 |
0 |
0 |
25 |
124 |
1761 |
4864 |
3766 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10711 |
5929 |
129 |
151 |
22 |
0 |
0 |
0 |
| OW |
7 |
572 |
123 |
172 |
52 |
3 |
0 |
0 |
| VODI |
0 |
60 |
87 |
331 |
167 |
60 |
0 |
0 |
| ODI |
0 |
6 |
16 |
176 |
240 |
224 |
7 |
0 |
| CDI |
0 |
0 |
7 |
64 |
446 |
1388 |
519 |
0 |
| VCDI |
0 |
0 |
0 |
14 |
89 |
1686 |
4858 |
3766 |
|
Date: 2023-10-07:
| 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 |
8522 |
7620 |
63 |
61 |
3 |
0 |
0 |
0 |
| OW |
0 |
841 |
201 |
247 |
57 |
7 |
0 |
0 |
| VODI |
0 |
124 |
149 |
431 |
129 |
29 |
0 |
0 |
| ODI |
0 |
2 |
13 |
286 |
252 |
108 |
7 |
0 |
| CDI |
0 |
0 |
1 |
130 |
379 |
615 |
214 |
0 |
| VCDI |
0 |
0 |
0 |
17 |
183 |
1606 |
4471 |
5314 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8502 |
7568 |
98 |
100 |
30 |
0 |
0 |
0 |
| OW |
20 |
849 |
160 |
221 |
39 |
5 |
0 |
0 |
| VODI |
0 |
169 |
152 |
443 |
119 |
34 |
0 |
0 |
| ODI |
0 |
1 |
17 |
299 |
227 |
99 |
11 |
0 |
| CDI |
0 |
0 |
0 |
108 |
458 |
542 |
189 |
16 |
| VCDI |
0 |
0 |
0 |
1 |
130 |
1685 |
4492 |
5298 |
|
Date: 2023-10-09:
| 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 |
8279 |
7859 |
286 |
199 |
0 |
0 |
0 |
0 |
| OW |
0 |
101 |
152 |
465 |
8 |
0 |
0 |
0 |
| VODI |
0 |
0 |
9 |
553 |
174 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
92 |
558 |
33 |
0 |
0 |
| CDI |
0 |
0 |
0 |
10 |
237 |
976 |
34 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
48 |
625 |
4765 |
6619 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8275 |
6983 |
159 |
149 |
6 |
0 |
0 |
0 |
| OW |
4 |
820 |
154 |
327 |
154 |
42 |
1 |
0 |
| VODI |
0 |
156 |
127 |
446 |
244 |
92 |
25 |
0 |
| ODI |
0 |
1 |
7 |
269 |
149 |
183 |
54 |
0 |
| CDI |
0 |
0 |
0 |
119 |
387 |
236 |
362 |
0 |
| VCDI |
0 |
0 |
0 |
9 |
85 |
1081 |
4357 |
6619 |
|
Date: 2023-10-11:
| 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 |
7398 |
7457 |
325 |
442 |
3 |
0 |
0 |
0 |
| OW |
2 |
285 |
128 |
617 |
135 |
0 |
0 |
0 |
| VODI |
0 |
32 |
17 |
323 |
456 |
8 |
0 |
0 |
| ODI |
0 |
0 |
0 |
60 |
484 |
79 |
0 |
0 |
| CDI |
0 |
0 |
0 |
15 |
210 |
695 |
18 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
84 |
978 |
4478 |
7349 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7392 |
6954 |
245 |
350 |
41 |
0 |
0 |
0 |
| OW |
8 |
589 |
135 |
490 |
151 |
5 |
0 |
0 |
| VODI |
0 |
217 |
59 |
403 |
568 |
171 |
2 |
0 |
| ODI |
0 |
14 |
27 |
90 |
285 |
256 |
37 |
0 |
| CDI |
0 |
0 |
4 |
88 |
187 |
413 |
160 |
0 |
| VCDI |
0 |
0 |
0 |
40 |
140 |
915 |
4297 |
7349 |
|
Date: 2023-10-13:
| 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 |
8173 |
5507 |
193 |
272 |
8 |
0 |
0 |
0 |
| OW |
209 |
1043 |
202 |
587 |
169 |
0 |
0 |
0 |
| VODI |
0 |
90 |
32 |
400 |
401 |
24 |
0 |
0 |
| ODI |
0 |
0 |
0 |
77 |
419 |
127 |
0 |
0 |
| CDI |
0 |
0 |
0 |
14 |
242 |
463 |
21 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
104 |
1505 |
5041 |
6756 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8210 |
5612 |
243 |
344 |
88 |
0 |
0 |
0 |
| OW |
172 |
677 |
90 |
474 |
268 |
34 |
0 |
0 |
| VODI |
0 |
295 |
69 |
299 |
587 |
300 |
26 |
0 |
| ODI |
0 |
29 |
8 |
111 |
148 |
393 |
134 |
0 |
| CDI |
0 |
27 |
12 |
51 |
79 |
469 |
109 |
0 |
| VCDI |
0 |
0 |
5 |
74 |
173 |
923 |
4793 |
6756 |
|
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