Validation of sea ice concentration - Asian sector
Bulletin date: 2024-02-29
Data source: OSI SAF N.H. AMSR 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 |
177 |
5 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
97 |
6 |
12 |
3 |
0 |
0 |
0 |
| VODI |
0 |
54 |
15 |
14 |
12 |
0 |
0 |
0 |
| ODI |
0 |
42 |
9 |
64 |
21 |
0 |
0 |
0 |
| CDI |
0 |
30 |
11 |
60 |
78 |
17 |
18 |
0 |
| VCDI |
0 |
32 |
15 |
58 |
286 |
960 |
9766 |
20219 |
|
...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 |
173 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
123 |
3 |
2 |
0 |
0 |
0 |
0 |
| VODI |
0 |
91 |
8 |
8 |
1 |
0 |
0 |
0 |
| ODI |
0 |
58 |
15 |
16 |
7 |
2 |
0 |
0 |
| CDI |
0 |
93 |
33 |
13 |
22 |
22 |
7 |
0 |
| VCDI |
0 |
152 |
48 |
125 |
277 |
1322 |
9807 |
19654 |
|
...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 |
255 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
187 |
5 |
1 |
0 |
0 |
0 |
0 |
| VODI |
0 |
83 |
8 |
9 |
1 |
0 |
0 |
0 |
| ODI |
0 |
80 |
6 |
10 |
11 |
1 |
1 |
0 |
| CDI |
0 |
163 |
38 |
67 |
81 |
130 |
35 |
2 |
| VCDI |
0 |
99 |
33 |
107 |
314 |
1874 |
13446 |
15035 |
|
...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 |
256 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
108 |
4 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
132 |
9 |
6 |
1 |
0 |
0 |
0 |
| ODI |
0 |
96 |
4 |
7 |
3 |
1 |
0 |
0 |
| CDI |
0 |
162 |
26 |
49 |
12 |
12 |
3 |
0 |
| VCDI |
0 |
96 |
45 |
122 |
313 |
1665 |
13589 |
15361 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
279 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
97 |
3 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
121 |
10 |
6 |
0 |
0 |
0 |
0 |
| ODI |
0 |
88 |
4 |
6 |
2 |
0 |
0 |
0 |
| CDI |
0 |
167 |
26 |
41 |
12 |
10 |
3 |
0 |
| VCDI |
0 |
98 |
45 |
131 |
315 |
1668 |
13589 |
15361 |
|
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 |
223 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
88 |
5 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
151 |
8 |
7 |
1 |
0 |
0 |
0 |
| ODI |
0 |
116 |
6 |
7 |
7 |
5 |
2 |
0 |
| CDI |
0 |
244 |
25 |
31 |
38 |
73 |
21 |
0 |
| VCDI |
0 |
131 |
46 |
171 |
313 |
2333 |
10013 |
18017 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
240 |
2 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
80 |
3 |
2 |
0 |
0 |
0 |
0 |
| VODI |
0 |
135 |
5 |
2 |
1 |
0 |
0 |
0 |
| ODI |
0 |
121 |
7 |
8 |
5 |
4 |
2 |
0 |
| CDI |
0 |
224 |
22 |
27 |
37 |
63 |
21 |
0 |
| VCDI |
0 |
153 |
51 |
177 |
316 |
2344 |
10013 |
18017 |
|
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 |
177 |
4 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
133 |
18 |
3 |
0 |
0 |
0 |
0 |
| VODI |
0 |
71 |
23 |
29 |
15 |
0 |
0 |
0 |
| ODI |
0 |
45 |
14 |
29 |
38 |
4 |
1 |
0 |
| CDI |
0 |
44 |
20 |
73 |
133 |
127 |
47 |
0 |
| VCDI |
0 |
2 |
0 |
19 |
135 |
1581 |
8750 |
20547 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
143 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
65 |
12 |
2 |
0 |
0 |
0 |
0 |
| VODI |
0 |
73 |
15 |
6 |
2 |
0 |
0 |
0 |
| ODI |
0 |
61 |
11 |
19 |
15 |
0 |
5 |
0 |
| CDI |
0 |
92 |
29 |
59 |
57 |
52 |
61 |
1 |
| VCDI |
0 |
38 |
12 |
67 |
247 |
1660 |
8732 |
20546 |
|
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 |
164 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
105 |
8 |
1 |
0 |
0 |
0 |
0 |
| VODI |
0 |
62 |
4 |
16 |
5 |
0 |
0 |
0 |
| ODI |
0 |
62 |
14 |
17 |
5 |
0 |
0 |
0 |
| CDI |
0 |
57 |
21 |
46 |
50 |
78 |
17 |
0 |
| VCDI |
0 |
12 |
10 |
59 |
196 |
697 |
7510 |
22866 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
100 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
93 |
1 |
2 |
0 |
0 |
0 |
0 |
| VODI |
0 |
97 |
6 |
2 |
5 |
0 |
0 |
0 |
| ODI |
0 |
47 |
5 |
17 |
7 |
4 |
0 |
0 |
| CDI |
0 |
62 |
5 |
6 |
8 |
17 |
6 |
0 |
| VCDI |
0 |
63 |
40 |
112 |
236 |
754 |
7521 |
22866 |
|
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 |
90 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
120 |
8 |
2 |
0 |
0 |
0 |
0 |
| VODI |
0 |
73 |
9 |
11 |
6 |
0 |
0 |
0 |
| ODI |
0 |
46 |
11 |
15 |
12 |
0 |
0 |
0 |
| CDI |
0 |
51 |
15 |
36 |
54 |
35 |
10 |
1 |
| VCDI |
0 |
3 |
7 |
34 |
134 |
651 |
6100 |
24548 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
65 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
99 |
4 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
98 |
15 |
8 |
2 |
1 |
0 |
0 |
| ODI |
0 |
52 |
4 |
17 |
19 |
3 |
0 |
0 |
| CDI |
0 |
41 |
7 |
6 |
7 |
15 |
3 |
0 |
| VCDI |
0 |
28 |
20 |
67 |
178 |
667 |
6107 |
24549 |
|
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