Validation of sea ice concentration - Asian sector
Bulletin date: 2023-11-02
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-10-27:
| 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 |
1694 |
1561 |
165 |
665 |
71 |
2 |
0 |
0 |
| OW |
0 |
75 |
133 |
792 |
454 |
115 |
0 |
0 |
| VODI |
0 |
0 |
2 |
186 |
790 |
658 |
47 |
0 |
| ODI |
0 |
0 |
0 |
0 |
340 |
1289 |
297 |
0 |
| CDI |
0 |
0 |
0 |
0 |
185 |
3212 |
724 |
2 |
| VCDI |
0 |
0 |
0 |
0 |
127 |
1944 |
6064 |
10488 |
|
...date precedes bulletin
|
Date: 2023-10-29:
| 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 |
838 |
2051 |
116 |
384 |
204 |
13 |
0 |
0 |
| OW |
0 |
76 |
38 |
374 |
631 |
196 |
2 |
0 |
| VODI |
0 |
0 |
2 |
38 |
626 |
960 |
61 |
0 |
| ODI |
0 |
0 |
0 |
0 |
93 |
1135 |
282 |
9 |
| CDI |
0 |
0 |
0 |
0 |
11 |
1736 |
1221 |
30 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
2027 |
5574 |
13354 |
|
...date precedes bulletin
|
Date: 2023-10-31:
| 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 |
1405 |
1553 |
105 |
134 |
26 |
0 |
0 |
0 |
| OW |
0 |
18 |
16 |
136 |
111 |
0 |
0 |
0 |
| VODI |
0 |
1 |
0 |
98 |
549 |
114 |
0 |
0 |
| ODI |
0 |
0 |
0 |
21 |
537 |
482 |
1 |
0 |
| CDI |
0 |
0 |
0 |
0 |
450 |
2180 |
608 |
28 |
| VCDI |
0 |
0 |
0 |
0 |
56 |
2173 |
5687 |
15593 |
|
...date precedes bulletin
|
Date: 2023-11-02:
| 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 |
1422 |
1728 |
48 |
20 |
0 |
0 |
0 |
0 |
| OW |
2 |
107 |
52 |
110 |
12 |
0 |
0 |
0 |
| VODI |
0 |
7 |
34 |
160 |
195 |
57 |
1 |
0 |
| ODI |
0 |
0 |
0 |
54 |
243 |
444 |
25 |
0 |
| CDI |
0 |
0 |
0 |
3 |
351 |
937 |
458 |
8 |
| VCDI |
0 |
0 |
0 |
0 |
114 |
3182 |
7445 |
14863 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1420 |
1602 |
24 |
6 |
0 |
0 |
0 |
0 |
| OW |
4 |
223 |
62 |
79 |
4 |
0 |
0 |
0 |
| VODI |
0 |
17 |
47 |
186 |
156 |
25 |
1 |
0 |
| ODI |
0 |
0 |
1 |
68 |
224 |
344 |
18 |
0 |
| CDI |
0 |
0 |
0 |
8 |
366 |
720 |
230 |
5 |
| VCDI |
0 |
0 |
0 |
0 |
165 |
3531 |
7680 |
14866 |
|
Date: 2023-11-04:
| 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 |
1064 |
1973 |
9 |
7 |
0 |
0 |
0 |
0 |
| OW |
12 |
221 |
29 |
48 |
2 |
0 |
0 |
0 |
| VODI |
0 |
66 |
65 |
115 |
98 |
5 |
0 |
0 |
| ODI |
0 |
2 |
15 |
128 |
190 |
111 |
1 |
0 |
| CDI |
0 |
0 |
0 |
50 |
410 |
525 |
224 |
9 |
| VCDI |
0 |
0 |
0 |
0 |
264 |
3781 |
8254 |
14404 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1063 |
2004 |
9 |
8 |
0 |
0 |
0 |
0 |
| OW |
11 |
189 |
25 |
32 |
1 |
0 |
0 |
0 |
| VODI |
2 |
66 |
70 |
127 |
79 |
4 |
0 |
0 |
| ODI |
0 |
3 |
13 |
112 |
231 |
86 |
5 |
0 |
| CDI |
0 |
0 |
1 |
66 |
267 |
427 |
180 |
3 |
| VCDI |
0 |
0 |
0 |
3 |
386 |
3905 |
8294 |
14410 |
|
Date: 2023-11-06:
| 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 |
373 |
2529 |
125 |
73 |
7 |
0 |
0 |
0 |
| OW |
0 |
18 |
43 |
129 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
1 |
189 |
56 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
41 |
243 |
43 |
0 |
0 |
| CDI |
0 |
0 |
0 |
1 |
182 |
860 |
47 |
40 |
| VCDI |
0 |
0 |
0 |
0 |
30 |
3125 |
10119 |
13808 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
373 |
2318 |
71 |
82 |
6 |
0 |
0 |
0 |
| OW |
0 |
202 |
57 |
93 |
16 |
0 |
0 |
0 |
| VODI |
0 |
27 |
39 |
120 |
74 |
55 |
0 |
0 |
| ODI |
0 |
0 |
2 |
112 |
94 |
103 |
1 |
1 |
| CDI |
0 |
0 |
0 |
26 |
250 |
335 |
110 |
54 |
| VCDI |
0 |
0 |
0 |
0 |
78 |
3535 |
10055 |
13793 |
|
Date: 2023-11-08:
| 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 |
445 |
2287 |
63 |
85 |
22 |
0 |
0 |
0 |
| OW |
0 |
158 |
73 |
82 |
3 |
0 |
0 |
0 |
| VODI |
0 |
38 |
43 |
127 |
33 |
4 |
0 |
0 |
| ODI |
0 |
6 |
10 |
83 |
110 |
38 |
13 |
0 |
| CDI |
0 |
5 |
0 |
66 |
140 |
267 |
82 |
19 |
| VCDI |
0 |
0 |
0 |
11 |
136 |
2714 |
10499 |
14420 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
445 |
2087 |
57 |
96 |
20 |
0 |
0 |
0 |
| OW |
0 |
253 |
45 |
91 |
33 |
1 |
0 |
0 |
| VODI |
0 |
81 |
45 |
73 |
82 |
99 |
0 |
0 |
| ODI |
0 |
42 |
25 |
66 |
54 |
100 |
35 |
0 |
| CDI |
0 |
29 |
12 |
72 |
86 |
179 |
151 |
23 |
| VCDI |
0 |
2 |
5 |
56 |
169 |
2644 |
10408 |
14416 |
|
Date: 2023-11-10:
| 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 |
730 |
1645 |
55 |
110 |
26 |
0 |
0 |
0 |
| OW |
14 |
133 |
86 |
113 |
51 |
0 |
0 |
0 |
| VODI |
0 |
53 |
42 |
152 |
102 |
3 |
0 |
0 |
| ODI |
0 |
10 |
4 |
92 |
92 |
59 |
2 |
3 |
| CDI |
0 |
7 |
1 |
27 |
139 |
261 |
111 |
50 |
| VCDI |
0 |
1 |
0 |
28 |
115 |
1302 |
11559 |
14904 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
730 |
1499 |
60 |
145 |
46 |
0 |
0 |
0 |
| OW |
14 |
178 |
18 |
31 |
50 |
2 |
0 |
0 |
| VODI |
0 |
142 |
92 |
148 |
106 |
51 |
0 |
0 |
| ODI |
0 |
12 |
14 |
87 |
70 |
131 |
44 |
1 |
| CDI |
0 |
10 |
2 |
74 |
122 |
308 |
186 |
33 |
| VCDI |
0 |
8 |
2 |
37 |
131 |
1133 |
11442 |
14923 |
|
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