Validation of sea ice concentration - Asian sector
Bulletin date: 2024-02-22
Data source: OSI SAF N.H. AMSR 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 |
297 |
15 |
6 |
0 |
0 |
0 |
0 |
| OW |
0 |
78 |
4 |
5 |
4 |
0 |
0 |
0 |
| VODI |
0 |
100 |
3 |
6 |
2 |
0 |
0 |
0 |
| ODI |
0 |
164 |
1 |
0 |
0 |
0 |
0 |
0 |
| CDI |
0 |
97 |
26 |
26 |
19 |
17 |
8 |
0 |
| VCDI |
0 |
67 |
41 |
165 |
254 |
1293 |
8851 |
20533 |
|
...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 |
281 |
7 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
109 |
6 |
8 |
0 |
0 |
0 |
0 |
| VODI |
0 |
153 |
4 |
5 |
0 |
0 |
0 |
0 |
| ODI |
0 |
164 |
1 |
0 |
1 |
4 |
0 |
0 |
| CDI |
0 |
173 |
23 |
21 |
11 |
61 |
5 |
16 |
| VCDI |
0 |
185 |
84 |
199 |
271 |
1054 |
9154 |
20081 |
|
...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 |
358 |
9 |
5 |
0 |
0 |
0 |
0 |
| OW |
0 |
78 |
4 |
13 |
2 |
0 |
0 |
0 |
| VODI |
0 |
138 |
27 |
56 |
12 |
0 |
0 |
0 |
| ODI |
0 |
48 |
16 |
32 |
43 |
6 |
0 |
0 |
| CDI |
0 |
25 |
18 |
31 |
55 |
50 |
62 |
23 |
| VCDI |
0 |
30 |
30 |
133 |
421 |
1164 |
9509 |
19684 |
|
...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 |
292 |
7 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
54 |
7 |
8 |
5 |
0 |
0 |
0 |
| VODI |
0 |
40 |
7 |
13 |
3 |
0 |
0 |
0 |
| ODI |
0 |
47 |
5 |
6 |
11 |
0 |
0 |
0 |
| CDI |
0 |
52 |
25 |
48 |
88 |
43 |
52 |
9 |
| VCDI |
0 |
21 |
30 |
82 |
333 |
998 |
9558 |
20236 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
289 |
8 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
48 |
5 |
8 |
8 |
0 |
0 |
0 |
| VODI |
0 |
44 |
8 |
12 |
0 |
0 |
0 |
0 |
| ODI |
0 |
49 |
5 |
6 |
10 |
0 |
0 |
0 |
| CDI |
0 |
55 |
25 |
48 |
85 |
47 |
62 |
10 |
| VCDI |
0 |
21 |
30 |
82 |
337 |
994 |
9548 |
20235 |
|
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 |
269 |
10 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
59 |
10 |
9 |
2 |
0 |
0 |
0 |
| VODI |
0 |
44 |
7 |
14 |
15 |
3 |
0 |
0 |
| ODI |
0 |
37 |
1 |
3 |
4 |
1 |
0 |
0 |
| CDI |
0 |
62 |
20 |
19 |
26 |
49 |
22 |
0 |
| VCDI |
0 |
41 |
38 |
141 |
297 |
1069 |
9461 |
20347 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
278 |
11 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
48 |
14 |
10 |
5 |
0 |
0 |
0 |
| VODI |
0 |
45 |
3 |
14 |
13 |
3 |
0 |
0 |
| ODI |
0 |
41 |
0 |
3 |
4 |
1 |
0 |
0 |
| CDI |
0 |
59 |
20 |
18 |
18 |
43 |
21 |
0 |
| VCDI |
0 |
41 |
38 |
142 |
304 |
1075 |
9462 |
20347 |
|
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 |
405 |
6 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
110 |
11 |
5 |
0 |
0 |
0 |
0 |
| VODI |
0 |
110 |
10 |
14 |
2 |
0 |
0 |
0 |
| ODI |
0 |
56 |
18 |
24 |
27 |
9 |
0 |
0 |
| CDI |
0 |
50 |
19 |
50 |
93 |
95 |
35 |
0 |
| VCDI |
0 |
138 |
30 |
74 |
249 |
1645 |
10068 |
18726 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
193 |
2 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
56 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
38 |
8 |
5 |
0 |
0 |
0 |
0 |
| ODI |
0 |
351 |
37 |
58 |
123 |
631 |
3511 |
6416 |
| CDI |
0 |
56 |
8 |
11 |
25 |
20 |
3 |
0 |
| VCDI |
0 |
175 |
39 |
95 |
223 |
1098 |
6589 |
12310 |
|
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 |
357 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
56 |
11 |
2 |
0 |
0 |
0 |
0 |
| VODI |
0 |
92 |
2 |
18 |
6 |
1 |
0 |
0 |
| ODI |
0 |
107 |
23 |
29 |
32 |
13 |
7 |
0 |
| CDI |
0 |
60 |
22 |
45 |
114 |
152 |
165 |
37 |
| VCDI |
0 |
132 |
33 |
108 |
264 |
1683 |
13674 |
14837 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
145 |
1 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
40 |
0 |
3 |
0 |
0 |
0 |
0 |
| VODI |
0 |
29 |
1 |
0 |
4 |
0 |
0 |
0 |
| ODI |
0 |
257 |
19 |
47 |
105 |
480 |
4364 |
5087 |
| CDI |
0 |
36 |
9 |
11 |
20 |
18 |
9 |
0 |
| VCDI |
0 |
297 |
61 |
139 |
287 |
1351 |
9473 |
9787 |
|
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 |
365 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
85 |
3 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
139 |
7 |
9 |
3 |
2 |
1 |
0 |
| ODI |
0 |
122 |
7 |
17 |
19 |
9 |
1 |
0 |
| CDI |
0 |
93 |
19 |
39 |
55 |
132 |
84 |
9 |
| VCDI |
0 |
216 |
45 |
148 |
273 |
2179 |
12186 |
15815 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
148 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
43 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
30 |
2 |
2 |
0 |
0 |
0 |
0 |
| ODI |
0 |
296 |
23 |
45 |
62 |
565 |
3939 |
5429 |
| CDI |
0 |
51 |
4 |
8 |
8 |
24 |
8 |
0 |
| VCDI |
0 |
452 |
52 |
158 |
280 |
1733 |
8325 |
10395 |
|
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