Validation of sea ice concentration - Asian sector
Bulletin date: 2023-12-14
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
0 |
301 |
29 |
216 |
166 |
65 |
9 |
0 |
| OW |
0 |
3 |
9 |
78 |
70 |
19 |
0 |
0 |
| VODI |
0 |
1 |
1 |
50 |
135 |
33 |
0 |
0 |
| ODI |
0 |
0 |
0 |
30 |
122 |
77 |
2 |
0 |
| CDI |
0 |
0 |
0 |
15 |
139 |
273 |
33 |
2 |
| VCDI |
0 |
0 |
0 |
0 |
73 |
584 |
6647 |
22900 |
|
...date precedes bulletin
|
Date: 2023-12-10:
| 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 |
1 |
327 |
15 |
198 |
172 |
78 |
0 |
0 |
| OW |
0 |
25 |
13 |
105 |
84 |
2 |
0 |
0 |
| VODI |
0 |
11 |
15 |
97 |
82 |
7 |
0 |
0 |
| ODI |
0 |
0 |
3 |
77 |
137 |
31 |
0 |
0 |
| CDI |
0 |
0 |
0 |
65 |
170 |
133 |
11 |
1 |
| VCDI |
0 |
0 |
0 |
40 |
218 |
759 |
5923 |
23282 |
|
...date precedes bulletin
|
Date: 2023-12-12:
| 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 |
7 |
640 |
52 |
133 |
143 |
0 |
0 |
0 |
| OW |
0 |
210 |
80 |
99 |
52 |
0 |
0 |
0 |
| VODI |
0 |
154 |
47 |
98 |
51 |
0 |
0 |
0 |
| ODI |
0 |
32 |
42 |
121 |
80 |
1 |
2 |
0 |
| CDI |
0 |
7 |
13 |
126 |
173 |
49 |
40 |
17 |
| VCDI |
0 |
0 |
6 |
93 |
280 |
1173 |
5928 |
22133 |
|
...date precedes bulletin
|
Date: 2023-12-14:
| 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 |
1 |
582 |
37 |
101 |
91 |
27 |
0 |
0 |
| OW |
0 |
230 |
40 |
75 |
38 |
61 |
0 |
0 |
| VODI |
0 |
147 |
64 |
163 |
40 |
53 |
0 |
0 |
| ODI |
0 |
36 |
21 |
145 |
68 |
57 |
0 |
0 |
| CDI |
0 |
13 |
13 |
117 |
124 |
119 |
27 |
8 |
| VCDI |
0 |
10 |
17 |
101 |
324 |
1104 |
6318 |
21710 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1 |
635 |
34 |
100 |
93 |
56 |
0 |
0 |
| OW |
0 |
147 |
29 |
65 |
27 |
20 |
0 |
0 |
| VODI |
0 |
178 |
82 |
161 |
44 |
52 |
0 |
0 |
| ODI |
0 |
30 |
17 |
159 |
66 |
68 |
3 |
0 |
| CDI |
0 |
14 |
11 |
112 |
127 |
122 |
30 |
7 |
| VCDI |
0 |
14 |
19 |
105 |
328 |
1103 |
6312 |
21711 |
|
Date: 2023-12-16:
| 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 |
7 |
402 |
10 |
22 |
103 |
0 |
0 |
0 |
| OW |
0 |
185 |
36 |
107 |
148 |
0 |
0 |
0 |
| VODI |
0 |
179 |
95 |
152 |
190 |
0 |
0 |
0 |
| ODI |
0 |
29 |
37 |
200 |
131 |
58 |
0 |
0 |
| CDI |
0 |
12 |
9 |
135 |
202 |
135 |
32 |
6 |
| VCDI |
0 |
9 |
15 |
70 |
432 |
1817 |
5711 |
21406 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7 |
398 |
12 |
76 |
146 |
0 |
0 |
0 |
| OW |
0 |
217 |
37 |
53 |
119 |
0 |
0 |
0 |
| VODI |
0 |
156 |
103 |
163 |
158 |
0 |
0 |
0 |
| ODI |
0 |
24 |
24 |
212 |
143 |
58 |
0 |
0 |
| CDI |
0 |
9 |
10 |
114 |
186 |
137 |
30 |
5 |
| VCDI |
0 |
12 |
16 |
68 |
454 |
1815 |
5713 |
21407 |
|
Date: 2023-12-18:
| 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 |
0 |
371 |
9 |
19 |
71 |
40 |
0 |
0 |
| OW |
0 |
68 |
34 |
88 |
61 |
25 |
0 |
0 |
| VODI |
0 |
86 |
75 |
149 |
58 |
78 |
0 |
0 |
| ODI |
0 |
64 |
71 |
203 |
132 |
95 |
3 |
0 |
| CDI |
0 |
27 |
17 |
142 |
203 |
200 |
92 |
5 |
| VCDI |
0 |
16 |
20 |
136 |
474 |
1927 |
6417 |
20606 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
348 |
13 |
21 |
86 |
39 |
0 |
0 |
| OW |
0 |
87 |
34 |
106 |
40 |
28 |
0 |
0 |
| VODI |
0 |
157 |
114 |
184 |
78 |
94 |
0 |
0 |
| ODI |
0 |
31 |
46 |
230 |
186 |
139 |
17 |
0 |
| CDI |
0 |
8 |
7 |
112 |
210 |
163 |
79 |
8 |
| VCDI |
0 |
1 |
12 |
84 |
399 |
1902 |
6416 |
20603 |
|
Date: 2023-12-20:
| 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 |
1 |
361 |
10 |
11 |
71 |
0 |
0 |
0 |
| OW |
0 |
50 |
20 |
51 |
65 |
10 |
0 |
0 |
| VODI |
0 |
43 |
24 |
183 |
115 |
24 |
0 |
0 |
| ODI |
0 |
40 |
13 |
235 |
127 |
102 |
0 |
0 |
| CDI |
0 |
32 |
18 |
149 |
236 |
283 |
77 |
2 |
| VCDI |
0 |
27 |
24 |
171 |
573 |
1927 |
6538 |
20469 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1 |
308 |
5 |
11 |
87 |
0 |
0 |
0 |
| OW |
0 |
77 |
14 |
42 |
56 |
14 |
0 |
0 |
| VODI |
0 |
58 |
34 |
198 |
119 |
48 |
0 |
0 |
| ODI |
0 |
90 |
25 |
290 |
118 |
145 |
0 |
0 |
| CDI |
0 |
20 |
17 |
122 |
260 |
281 |
84 |
5 |
| VCDI |
0 |
0 |
14 |
137 |
547 |
1858 |
6531 |
20466 |
|
Date: 2023-12-22:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
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