Validation of sea ice concentration - Asian sector
Bulletin date: 2023-11-23
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-11-17:
| 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 |
170 |
1907 |
25 |
12 |
0 |
0 |
0 |
0 |
| OW |
0 |
126 |
79 |
86 |
0 |
0 |
0 |
0 |
| VODI |
0 |
8 |
8 |
169 |
75 |
0 |
0 |
0 |
| ODI |
0 |
4 |
4 |
28 |
193 |
25 |
2 |
0 |
| CDI |
0 |
0 |
0 |
8 |
164 |
344 |
29 |
6 |
| VCDI |
0 |
0 |
0 |
0 |
6 |
1181 |
11058 |
17379 |
|
...date precedes bulletin
|
Date: 2023-11-19:
| 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 |
150 |
1382 |
115 |
149 |
0 |
0 |
0 |
0 |
| OW |
0 |
56 |
57 |
216 |
7 |
0 |
0 |
0 |
| VODI |
0 |
1 |
9 |
236 |
47 |
0 |
0 |
0 |
| ODI |
0 |
5 |
0 |
26 |
185 |
22 |
0 |
0 |
| CDI |
0 |
4 |
0 |
8 |
144 |
258 |
25 |
1 |
| VCDI |
0 |
5 |
0 |
0 |
47 |
568 |
8482 |
20891 |
|
...date precedes bulletin
|
Date: 2023-11-21:
| 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 |
1216 |
113 |
162 |
4 |
0 |
0 |
0 |
| OW |
0 |
74 |
58 |
142 |
25 |
0 |
0 |
0 |
| VODI |
0 |
6 |
16 |
282 |
54 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
121 |
165 |
10 |
0 |
0 |
| CDI |
0 |
0 |
0 |
12 |
224 |
218 |
47 |
5 |
| VCDI |
0 |
0 |
0 |
17 |
67 |
479 |
6533 |
22896 |
|
...date precedes bulletin
|
Date: 2023-11-23:
| 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 |
150 |
1177 |
126 |
109 |
0 |
0 |
0 |
0 |
| OW |
0 |
121 |
61 |
141 |
12 |
0 |
0 |
0 |
| VODI |
0 |
40 |
67 |
263 |
29 |
0 |
0 |
0 |
| ODI |
0 |
4 |
13 |
166 |
68 |
37 |
0 |
0 |
| CDI |
0 |
0 |
4 |
86 |
213 |
213 |
58 |
3 |
| VCDI |
0 |
0 |
0 |
69 |
159 |
543 |
7463 |
21701 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
150 |
1161 |
128 |
119 |
0 |
0 |
0 |
0 |
| OW |
0 |
132 |
62 |
124 |
18 |
0 |
0 |
0 |
| VODI |
0 |
44 |
60 |
267 |
21 |
0 |
0 |
0 |
| ODI |
0 |
5 |
16 |
169 |
70 |
37 |
0 |
0 |
| CDI |
0 |
0 |
5 |
71 |
211 |
207 |
66 |
3 |
| VCDI |
0 |
0 |
0 |
84 |
161 |
549 |
7455 |
21701 |
|
Date: 2023-11-25:
| 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 |
158 |
1307 |
83 |
43 |
0 |
0 |
0 |
0 |
| OW |
2 |
191 |
68 |
127 |
5 |
0 |
0 |
0 |
| VODI |
0 |
110 |
34 |
201 |
42 |
0 |
0 |
0 |
| ODI |
0 |
58 |
22 |
128 |
32 |
3 |
0 |
0 |
| CDI |
0 |
26 |
22 |
123 |
168 |
82 |
60 |
0 |
| VCDI |
0 |
47 |
26 |
174 |
297 |
709 |
6420 |
22328 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
159 |
1309 |
82 |
54 |
0 |
0 |
0 |
0 |
| OW |
1 |
168 |
71 |
124 |
7 |
0 |
0 |
0 |
| VODI |
0 |
125 |
31 |
201 |
41 |
0 |
0 |
0 |
| ODI |
0 |
59 |
23 |
138 |
33 |
2 |
0 |
0 |
| CDI |
0 |
28 |
20 |
107 |
181 |
103 |
85 |
0 |
| VCDI |
0 |
50 |
28 |
172 |
282 |
689 |
6395 |
22328 |
|
Date: 2023-11-27:
| 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 |
150 |
1180 |
103 |
48 |
0 |
0 |
0 |
0 |
| OW |
0 |
286 |
96 |
118 |
0 |
0 |
0 |
0 |
| VODI |
0 |
46 |
35 |
336 |
21 |
0 |
0 |
0 |
| ODI |
0 |
8 |
3 |
149 |
202 |
5 |
0 |
0 |
| CDI |
0 |
15 |
3 |
56 |
272 |
163 |
7 |
0 |
| VCDI |
0 |
22 |
15 |
91 |
206 |
749 |
6771 |
21940 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
150 |
1126 |
116 |
80 |
0 |
0 |
0 |
0 |
| OW |
0 |
162 |
64 |
165 |
11 |
0 |
0 |
0 |
| VODI |
0 |
129 |
21 |
207 |
78 |
0 |
0 |
0 |
| ODI |
0 |
60 |
19 |
109 |
114 |
4 |
0 |
0 |
| CDI |
0 |
25 |
11 |
81 |
172 |
100 |
22 |
0 |
| VCDI |
0 |
55 |
24 |
156 |
326 |
813 |
6756 |
21940 |
|
Date: 2023-11-29:
| 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 |
151 |
975 |
105 |
64 |
11 |
0 |
0 |
0 |
| OW |
0 |
226 |
61 |
193 |
38 |
0 |
0 |
0 |
| VODI |
0 |
38 |
45 |
273 |
100 |
0 |
0 |
0 |
| ODI |
0 |
16 |
8 |
115 |
259 |
25 |
0 |
0 |
| CDI |
0 |
18 |
15 |
81 |
284 |
310 |
1 |
9 |
| VCDI |
0 |
38 |
23 |
119 |
352 |
1719 |
7318 |
20106 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
151 |
926 |
105 |
97 |
2 |
0 |
0 |
0 |
| OW |
0 |
152 |
56 |
191 |
50 |
0 |
0 |
0 |
| VODI |
0 |
90 |
21 |
163 |
186 |
3 |
0 |
0 |
| ODI |
0 |
48 |
29 |
139 |
167 |
12 |
0 |
0 |
| CDI |
0 |
30 |
11 |
91 |
242 |
266 |
0 |
18 |
| VCDI |
0 |
65 |
35 |
164 |
397 |
1773 |
7319 |
20097 |
|
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 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
150 |
703 |
74 |
96 |
16 |
0 |
0 |
0 |
| OW |
0 |
164 |
68 |
173 |
53 |
0 |
0 |
0 |
| VODI |
0 |
104 |
43 |
166 |
203 |
3 |
1 |
0 |
| ODI |
0 |
39 |
47 |
131 |
188 |
55 |
21 |
1 |
| CDI |
0 |
0 |
7 |
147 |
196 |
300 |
83 |
10 |
| VCDI |
0 |
0 |
0 |
34 |
195 |
1712 |
8455 |
19458 |
|
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