Validation of sea ice concentration - Asian sector
Bulletin date: 2023-02-16
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-02-10:
| 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 |
185 |
232 |
1 |
0 |
0 |
0 |
0 |
0 |
| OW |
1 |
69 |
0 |
2 |
0 |
0 |
0 |
0 |
| VODI |
0 |
85 |
1 |
15 |
15 |
0 |
0 |
0 |
| ODI |
0 |
88 |
5 |
39 |
25 |
1 |
0 |
0 |
| CDI |
0 |
74 |
3 |
35 |
77 |
67 |
7 |
0 |
| VCDI |
0 |
423 |
26 |
236 |
629 |
2813 |
6346 |
20582 |
|
...date precedes bulletin
|
Date: 2023-02-12:
| 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 |
169 |
203 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
7 |
50 |
2 |
2 |
0 |
0 |
0 |
0 |
| VODI |
0 |
63 |
2 |
22 |
23 |
0 |
0 |
0 |
| ODI |
0 |
55 |
4 |
55 |
35 |
3 |
0 |
0 |
| CDI |
0 |
56 |
0 |
46 |
59 |
48 |
8 |
0 |
| VCDI |
0 |
369 |
22 |
264 |
509 |
2277 |
5695 |
22034 |
|
...date precedes bulletin
|
Date: 2023-02-14:
| 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 |
0 |
349 |
5 |
16 |
0 |
0 |
0 |
0 |
| OW |
0 |
41 |
4 |
10 |
0 |
0 |
0 |
0 |
| VODI |
0 |
35 |
3 |
24 |
41 |
2 |
0 |
0 |
| ODI |
0 |
45 |
1 |
37 |
72 |
7 |
0 |
0 |
| CDI |
0 |
56 |
2 |
21 |
66 |
72 |
68 |
3 |
| VCDI |
0 |
107 |
16 |
122 |
459 |
1009 |
10036 |
19353 |
|
...date precedes bulletin
|
Date: 2023-02-16:
| 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 |
383 |
1 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
47 |
2 |
3 |
0 |
0 |
0 |
0 |
| VODI |
0 |
46 |
6 |
35 |
19 |
0 |
0 |
0 |
| ODI |
0 |
41 |
0 |
66 |
34 |
9 |
0 |
0 |
| CDI |
0 |
56 |
4 |
53 |
50 |
80 |
10 |
53 |
| VCDI |
0 |
150 |
19 |
210 |
498 |
1512 |
6293 |
22395 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7 |
378 |
1 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
52 |
3 |
4 |
0 |
0 |
0 |
0 |
| VODI |
0 |
51 |
5 |
26 |
17 |
0 |
0 |
0 |
| ODI |
0 |
45 |
0 |
67 |
31 |
4 |
0 |
0 |
| CDI |
0 |
51 |
4 |
48 |
38 |
77 |
10 |
55 |
| VCDI |
0 |
146 |
19 |
222 |
515 |
1520 |
6293 |
22393 |
|
Date: 2023-02-18:
| 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 |
80 |
324 |
1 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
65 |
1 |
10 |
0 |
0 |
0 |
0 |
| VODI |
0 |
74 |
10 |
73 |
12 |
0 |
0 |
0 |
| ODI |
0 |
68 |
2 |
69 |
95 |
9 |
0 |
0 |
| CDI |
0 |
70 |
3 |
48 |
139 |
62 |
3 |
2 |
| VCDI |
0 |
270 |
22 |
238 |
529 |
1592 |
5628 |
22582 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
80 |
304 |
1 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
68 |
2 |
7 |
0 |
0 |
0 |
0 |
| VODI |
0 |
82 |
8 |
61 |
6 |
0 |
0 |
0 |
| ODI |
0 |
77 |
3 |
72 |
82 |
10 |
0 |
0 |
| CDI |
0 |
65 |
3 |
56 |
138 |
57 |
3 |
0 |
| VCDI |
0 |
275 |
22 |
242 |
549 |
1596 |
5628 |
22584 |
|
Date: 2023-02-20:
| 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 |
427 |
6 |
4 |
0 |
0 |
0 |
0 |
| OW |
0 |
61 |
1 |
41 |
0 |
0 |
0 |
0 |
| VODI |
0 |
128 |
7 |
127 |
10 |
0 |
0 |
0 |
| ODI |
0 |
65 |
9 |
157 |
125 |
7 |
0 |
0 |
| CDI |
0 |
84 |
7 |
62 |
189 |
131 |
39 |
12 |
| VCDI |
0 |
105 |
12 |
158 |
437 |
1800 |
9404 |
18466 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1 |
329 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
65 |
6 |
12 |
0 |
0 |
0 |
0 |
| VODI |
0 |
84 |
3 |
90 |
0 |
0 |
0 |
0 |
| ODI |
0 |
99 |
5 |
130 |
37 |
21 |
1 |
0 |
| CDI |
0 |
84 |
7 |
88 |
153 |
162 |
73 |
15 |
| VCDI |
0 |
209 |
21 |
229 |
571 |
1755 |
9369 |
18463 |
|
Date: 2023-02-22:
| 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 |
335 |
10 |
36 |
0 |
0 |
0 |
0 |
| OW |
0 |
43 |
1 |
18 |
8 |
0 |
0 |
0 |
| VODI |
0 |
47 |
2 |
47 |
56 |
0 |
0 |
0 |
| ODI |
0 |
50 |
2 |
50 |
152 |
12 |
0 |
0 |
| CDI |
0 |
78 |
3 |
15 |
193 |
103 |
10 |
9 |
| VCDI |
0 |
69 |
9 |
78 |
443 |
780 |
6416 |
23007 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
263 |
6 |
19 |
0 |
0 |
0 |
0 |
| OW |
0 |
56 |
5 |
20 |
0 |
0 |
0 |
0 |
| VODI |
0 |
47 |
0 |
21 |
32 |
0 |
0 |
0 |
| ODI |
0 |
48 |
1 |
64 |
103 |
10 |
0 |
0 |
| CDI |
0 |
67 |
3 |
28 |
182 |
81 |
16 |
2 |
| VCDI |
0 |
141 |
12 |
92 |
535 |
804 |
6410 |
23014 |
|
Date: 2023-02-24:
| 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 |
332 |
9 |
33 |
1 |
0 |
0 |
0 |
| OW |
0 |
40 |
5 |
10 |
1 |
0 |
0 |
0 |
| VODI |
0 |
48 |
1 |
24 |
1 |
0 |
0 |
0 |
| ODI |
0 |
40 |
2 |
23 |
35 |
19 |
0 |
0 |
| CDI |
0 |
62 |
3 |
24 |
103 |
98 |
18 |
14 |
| VCDI |
0 |
172 |
12 |
113 |
212 |
1206 |
7020 |
22401 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
307 |
4 |
19 |
0 |
0 |
0 |
0 |
| OW |
0 |
60 |
7 |
15 |
2 |
0 |
0 |
0 |
| VODI |
0 |
58 |
5 |
20 |
0 |
0 |
0 |
0 |
| ODI |
0 |
48 |
2 |
41 |
50 |
47 |
0 |
0 |
| CDI |
0 |
49 |
2 |
24 |
100 |
202 |
13 |
30 |
| VCDI |
0 |
172 |
12 |
108 |
201 |
1074 |
7025 |
22385 |
|
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