Validation of sea ice concentration - Asian sector
Bulletin date: 2024-02-22
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-02-16:
| 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 |
0 |
265 |
5 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
166 |
15 |
4 |
0 |
0 |
0 |
0 |
| VODI |
0 |
77 |
16 |
41 |
0 |
0 |
0 |
0 |
| ODI |
0 |
40 |
11 |
24 |
6 |
0 |
0 |
0 |
| CDI |
0 |
66 |
5 |
59 |
17 |
19 |
11 |
0 |
| VCDI |
0 |
171 |
46 |
188 |
381 |
1440 |
7258 |
22763 |
|
...date precedes bulletin
|
Date: 2024-02-18:
| 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 |
0 |
304 |
13 |
15 |
0 |
0 |
0 |
0 |
| OW |
0 |
143 |
7 |
11 |
0 |
0 |
0 |
0 |
| VODI |
0 |
105 |
12 |
25 |
2 |
0 |
0 |
0 |
| ODI |
0 |
58 |
3 |
28 |
5 |
3 |
0 |
0 |
| CDI |
0 |
81 |
16 |
45 |
33 |
58 |
3 |
0 |
| VCDI |
0 |
281 |
78 |
252 |
407 |
1393 |
7951 |
21764 |
|
...date precedes bulletin
|
Date: 2024-02-20:
| 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 |
0 |
328 |
19 |
17 |
2 |
0 |
0 |
0 |
| OW |
0 |
104 |
24 |
31 |
6 |
0 |
0 |
0 |
| VODI |
0 |
107 |
25 |
56 |
10 |
0 |
0 |
0 |
| ODI |
0 |
63 |
9 |
40 |
24 |
2 |
0 |
0 |
| CDI |
0 |
22 |
25 |
142 |
98 |
70 |
30 |
5 |
| VCDI |
0 |
1 |
7 |
79 |
515 |
1404 |
9044 |
20787 |
|
...date precedes bulletin
|
Date: 2024-02-22:
| 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 |
241 |
19 |
26 |
0 |
0 |
0 |
0 |
| OW |
0 |
94 |
11 |
26 |
5 |
0 |
0 |
0 |
| VODI |
0 |
45 |
10 |
64 |
10 |
0 |
0 |
0 |
| ODI |
0 |
45 |
18 |
80 |
25 |
6 |
0 |
0 |
| CDI |
0 |
30 |
5 |
45 |
146 |
49 |
18 |
15 |
| VCDI |
0 |
26 |
16 |
73 |
242 |
1158 |
8676 |
21872 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
222 |
17 |
25 |
1 |
0 |
0 |
0 |
| OW |
0 |
115 |
12 |
22 |
4 |
0 |
0 |
0 |
| VODI |
0 |
44 |
12 |
76 |
10 |
0 |
0 |
0 |
| ODI |
0 |
44 |
17 |
74 |
27 |
6 |
0 |
0 |
| CDI |
0 |
31 |
5 |
44 |
145 |
70 |
14 |
16 |
| VCDI |
0 |
25 |
16 |
73 |
241 |
1137 |
8680 |
21871 |
|
Date: 2024-02-24:
| 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 |
201 |
24 |
20 |
0 |
0 |
0 |
0 |
| OW |
0 |
90 |
18 |
26 |
1 |
0 |
0 |
0 |
| VODI |
0 |
49 |
19 |
33 |
22 |
0 |
0 |
0 |
| ODI |
0 |
31 |
19 |
69 |
35 |
0 |
1 |
0 |
| CDI |
0 |
31 |
11 |
92 |
46 |
30 |
13 |
0 |
| VCDI |
0 |
41 |
22 |
79 |
313 |
1181 |
8778 |
21801 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
184 |
19 |
17 |
0 |
0 |
0 |
0 |
| OW |
0 |
113 |
25 |
24 |
2 |
0 |
0 |
0 |
| VODI |
0 |
44 |
22 |
40 |
21 |
0 |
0 |
0 |
| ODI |
0 |
31 |
19 |
80 |
35 |
0 |
1 |
0 |
| CDI |
0 |
35 |
7 |
78 |
46 |
33 |
13 |
0 |
| VCDI |
0 |
36 |
21 |
80 |
313 |
1178 |
8778 |
21801 |
|
Date: 2024-02-26:
| 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 |
325 |
10 |
19 |
1 |
0 |
0 |
0 |
| OW |
0 |
207 |
21 |
15 |
5 |
0 |
0 |
0 |
| VODI |
0 |
84 |
11 |
34 |
12 |
0 |
0 |
0 |
| ODI |
0 |
64 |
7 |
26 |
34 |
4 |
0 |
0 |
| CDI |
0 |
82 |
38 |
125 |
99 |
97 |
11 |
0 |
| VCDI |
0 |
2 |
10 |
85 |
402 |
2056 |
9098 |
20112 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
233 |
10 |
17 |
1 |
0 |
0 |
0 |
| OW |
0 |
138 |
1 |
7 |
10 |
0 |
0 |
0 |
| VODI |
0 |
91 |
24 |
13 |
19 |
2 |
0 |
0 |
| ODI |
0 |
57 |
6 |
50 |
25 |
9 |
0 |
0 |
| CDI |
0 |
131 |
13 |
41 |
63 |
81 |
8 |
0 |
| VCDI |
0 |
114 |
43 |
176 |
435 |
2065 |
9101 |
20112 |
|
Date: 2024-02-28:
| 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 |
291 |
11 |
16 |
0 |
0 |
0 |
0 |
| OW |
0 |
129 |
14 |
13 |
8 |
0 |
0 |
0 |
| VODI |
0 |
105 |
6 |
26 |
22 |
1 |
0 |
0 |
| ODI |
0 |
85 |
2 |
22 |
31 |
14 |
0 |
0 |
| CDI |
0 |
96 |
15 |
130 |
141 |
75 |
19 |
10 |
| VCDI |
0 |
28 |
12 |
105 |
378 |
1831 |
12046 |
17414 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
195 |
10 |
16 |
0 |
0 |
0 |
0 |
| OW |
0 |
110 |
4 |
6 |
11 |
0 |
0 |
0 |
| VODI |
0 |
88 |
17 |
20 |
14 |
7 |
0 |
0 |
| ODI |
0 |
55 |
2 |
33 |
28 |
8 |
0 |
0 |
| CDI |
0 |
181 |
11 |
55 |
69 |
63 |
47 |
6 |
| VCDI |
0 |
105 |
16 |
182 |
458 |
1843 |
12018 |
17418 |
|
Date: 2024-03-01:
| 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 |
0 |
330 |
8 |
11 |
0 |
0 |
0 |
0 |
| OW |
0 |
102 |
5 |
20 |
6 |
0 |
0 |
0 |
| VODI |
0 |
161 |
7 |
19 |
23 |
0 |
0 |
0 |
| ODI |
0 |
87 |
11 |
13 |
25 |
0 |
0 |
0 |
| CDI |
0 |
129 |
57 |
105 |
51 |
41 |
5 |
2 |
| VCDI |
0 |
62 |
33 |
163 |
452 |
2156 |
9039 |
19973 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
212 |
8 |
6 |
0 |
0 |
0 |
0 |
| OW |
0 |
119 |
2 |
14 |
5 |
0 |
0 |
0 |
| VODI |
0 |
112 |
7 |
17 |
19 |
0 |
0 |
0 |
| ODI |
0 |
77 |
10 |
25 |
22 |
0 |
0 |
0 |
| CDI |
0 |
135 |
16 |
42 |
57 |
36 |
16 |
1 |
| VCDI |
0 |
216 |
78 |
227 |
454 |
2161 |
9028 |
19974 |
|
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