Validation of sea ice concentration - Asian sector
Bulletin date: 2024-02-29
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-02-23:
| 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 |
0 |
207 |
29 |
24 |
0 |
0 |
0 |
0 |
| OW |
0 |
76 |
15 |
39 |
2 |
0 |
0 |
0 |
| VODI |
0 |
53 |
7 |
42 |
15 |
0 |
0 |
0 |
| ODI |
0 |
35 |
4 |
95 |
32 |
5 |
0 |
0 |
| CDI |
0 |
37 |
4 |
56 |
108 |
29 |
13 |
2 |
| VCDI |
0 |
26 |
7 |
74 |
263 |
1082 |
8195 |
22520 |
|
...date precedes bulletin
|
Date: 2024-02-25:
| 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 |
0 |
229 |
11 |
13 |
0 |
0 |
0 |
0 |
| OW |
0 |
111 |
12 |
19 |
3 |
0 |
0 |
0 |
| VODI |
0 |
63 |
17 |
33 |
14 |
0 |
0 |
0 |
| ODI |
0 |
51 |
9 |
42 |
28 |
7 |
0 |
0 |
| CDI |
0 |
84 |
25 |
35 |
46 |
50 |
3 |
0 |
| VCDI |
0 |
88 |
34 |
145 |
368 |
1323 |
9009 |
21224 |
|
...date precedes bulletin
|
Date: 2024-02-27:
| 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 |
0 |
302 |
11 |
17 |
1 |
0 |
0 |
0 |
| OW |
0 |
187 |
12 |
10 |
8 |
0 |
0 |
0 |
| VODI |
0 |
83 |
3 |
31 |
17 |
1 |
0 |
0 |
| ODI |
0 |
71 |
3 |
34 |
32 |
6 |
1 |
0 |
| CDI |
0 |
80 |
39 |
133 |
141 |
144 |
23 |
12 |
| VCDI |
0 |
32 |
24 |
95 |
378 |
2184 |
8968 |
20013 |
|
...date precedes bulletin
|
Date: 2024-02-29:
| 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 |
0 |
301 |
7 |
20 |
0 |
0 |
0 |
0 |
| OW |
0 |
106 |
5 |
15 |
9 |
0 |
0 |
0 |
| VODI |
0 |
142 |
5 |
22 |
25 |
1 |
0 |
0 |
| ODI |
0 |
85 |
3 |
21 |
33 |
4 |
0 |
0 |
| CDI |
0 |
102 |
37 |
74 |
60 |
11 |
3 |
1 |
| VCDI |
0 |
47 |
21 |
138 |
445 |
1762 |
10001 |
19590 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
324 |
7 |
21 |
0 |
0 |
0 |
0 |
| OW |
0 |
96 |
4 |
13 |
9 |
0 |
0 |
0 |
| VODI |
0 |
127 |
7 |
23 |
25 |
4 |
0 |
0 |
| ODI |
0 |
81 |
1 |
19 |
28 |
1 |
0 |
0 |
| CDI |
0 |
111 |
37 |
69 |
58 |
11 |
5 |
1 |
| VCDI |
0 |
44 |
22 |
145 |
452 |
1762 |
9999 |
19590 |
|
Date: 2024-03-02:
| 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 |
0 |
294 |
10 |
5 |
0 |
0 |
0 |
0 |
| OW |
0 |
97 |
12 |
21 |
0 |
0 |
0 |
0 |
| VODI |
0 |
151 |
7 |
37 |
8 |
0 |
0 |
0 |
| ODI |
0 |
106 |
9 |
24 |
19 |
1 |
1 |
0 |
| CDI |
0 |
177 |
36 |
85 |
66 |
59 |
25 |
8 |
| VCDI |
0 |
25 |
37 |
166 |
502 |
2395 |
7346 |
21367 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
311 |
12 |
6 |
0 |
0 |
0 |
0 |
| OW |
0 |
86 |
12 |
25 |
0 |
0 |
0 |
0 |
| VODI |
0 |
139 |
4 |
28 |
4 |
0 |
0 |
0 |
| ODI |
0 |
110 |
11 |
26 |
20 |
1 |
2 |
0 |
| CDI |
0 |
171 |
26 |
73 |
56 |
55 |
27 |
9 |
| VCDI |
0 |
33 |
46 |
180 |
515 |
2399 |
7343 |
21366 |
|
Date: 2024-03-04:
| 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 |
0 |
224 |
16 |
28 |
2 |
0 |
0 |
0 |
| OW |
0 |
135 |
11 |
18 |
9 |
0 |
0 |
0 |
| VODI |
0 |
56 |
21 |
64 |
25 |
0 |
0 |
0 |
| ODI |
0 |
25 |
10 |
60 |
61 |
2 |
0 |
0 |
| CDI |
0 |
16 |
5 |
95 |
179 |
141 |
16 |
21 |
| VCDI |
0 |
2 |
0 |
10 |
154 |
1367 |
7490 |
22833 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
190 |
13 |
28 |
6 |
0 |
0 |
0 |
| OW |
0 |
72 |
6 |
8 |
14 |
0 |
0 |
0 |
| VODI |
0 |
71 |
7 |
23 |
14 |
0 |
0 |
0 |
| ODI |
0 |
53 |
14 |
34 |
28 |
0 |
1 |
3 |
| CDI |
0 |
53 |
17 |
117 |
81 |
49 |
30 |
24 |
| VCDI |
0 |
19 |
6 |
65 |
287 |
1461 |
7475 |
22827 |
|
Date: 2024-03-06:
| 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 |
0 |
207 |
20 |
12 |
0 |
0 |
0 |
0 |
| OW |
0 |
94 |
11 |
32 |
3 |
0 |
0 |
0 |
| VODI |
0 |
56 |
10 |
25 |
18 |
0 |
0 |
0 |
| ODI |
0 |
35 |
18 |
43 |
35 |
7 |
0 |
0 |
| CDI |
0 |
22 |
14 |
88 |
67 |
77 |
15 |
5 |
| VCDI |
0 |
4 |
1 |
39 |
221 |
701 |
3830 |
27386 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
150 |
13 |
23 |
2 |
0 |
0 |
0 |
| OW |
0 |
86 |
6 |
10 |
13 |
0 |
0 |
0 |
| VODI |
0 |
84 |
14 |
18 |
19 |
2 |
0 |
0 |
| ODI |
0 |
44 |
2 |
27 |
28 |
7 |
0 |
0 |
| CDI |
0 |
42 |
16 |
17 |
11 |
14 |
1 |
2 |
| VCDI |
0 |
12 |
23 |
144 |
271 |
762 |
3844 |
27389 |
|
Date: 2024-03-08:
| 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 |
145 |
9 |
14 |
0 |
0 |
0 |
0 |
| OW |
0 |
112 |
9 |
29 |
7 |
0 |
0 |
0 |
| VODI |
0 |
58 |
14 |
26 |
33 |
0 |
0 |
0 |
| ODI |
0 |
27 |
13 |
34 |
34 |
0 |
0 |
0 |
| CDI |
0 |
17 |
10 |
71 |
76 |
19 |
0 |
9 |
| VCDI |
0 |
0 |
2 |
25 |
150 |
702 |
3598 |
27853 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
118 |
9 |
25 |
0 |
0 |
0 |
0 |
| OW |
0 |
90 |
7 |
15 |
16 |
0 |
0 |
0 |
| VODI |
0 |
91 |
9 |
26 |
28 |
0 |
0 |
0 |
| ODI |
0 |
43 |
9 |
24 |
37 |
1 |
0 |
0 |
| CDI |
0 |
16 |
17 |
18 |
15 |
14 |
0 |
0 |
| VCDI |
0 |
1 |
6 |
91 |
204 |
706 |
3598 |
27862 |
|
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