Validation of sea ice concentration - Asian sector
Bulletin date: 2024-10-24
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-10-18:
| 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 |
5096 |
5936 |
339 |
847 |
919 |
26 |
0 |
0 |
| OW |
15 |
840 |
142 |
487 |
593 |
77 |
0 |
0 |
| VODI |
1 |
157 |
39 |
193 |
280 |
246 |
3 |
0 |
| ODI |
0 |
62 |
5 |
32 |
141 |
272 |
17 |
0 |
| CDI |
0 |
77 |
24 |
47 |
99 |
466 |
128 |
0 |
| VCDI |
0 |
34 |
30 |
52 |
131 |
785 |
8483 |
4961 |
|
...date precedes bulletin
|
Date: 2024-10-20:
| 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 |
4542 |
4445 |
341 |
686 |
483 |
173 |
0 |
0 |
| OW |
69 |
892 |
120 |
391 |
1132 |
523 |
8 |
0 |
| VODI |
49 |
286 |
115 |
297 |
685 |
485 |
12 |
0 |
| ODI |
3 |
73 |
10 |
68 |
220 |
346 |
21 |
0 |
| CDI |
0 |
115 |
23 |
33 |
128 |
527 |
158 |
0 |
| VCDI |
0 |
10 |
34 |
129 |
83 |
1097 |
6802 |
6468 |
|
...date precedes bulletin
|
Date: 2024-10-22:
| 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 |
3830 |
3400 |
296 |
445 |
177 |
9 |
0 |
0 |
| OW |
0 |
838 |
181 |
492 |
526 |
136 |
0 |
0 |
| VODI |
0 |
195 |
40 |
229 |
588 |
605 |
7 |
0 |
| ODI |
0 |
73 |
14 |
89 |
715 |
1232 |
81 |
0 |
| CDI |
0 |
80 |
21 |
37 |
717 |
2115 |
255 |
0 |
| VCDI |
0 |
25 |
42 |
125 |
157 |
2132 |
9444 |
2734 |
|
...date precedes bulletin
|
Date: 2024-10-24:
| 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 |
3470 |
2461 |
122 |
371 |
651 |
14 |
0 |
0 |
| OW |
0 |
294 |
84 |
333 |
443 |
148 |
0 |
0 |
| VODI |
0 |
94 |
79 |
163 |
777 |
949 |
43 |
0 |
| ODI |
0 |
38 |
18 |
104 |
477 |
1308 |
90 |
0 |
| CDI |
0 |
26 |
25 |
175 |
702 |
2648 |
485 |
0 |
| VCDI |
0 |
33 |
39 |
113 |
240 |
4167 |
10021 |
877 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
3470 |
2481 |
126 |
457 |
777 |
46 |
0 |
0 |
| OW |
0 |
262 |
76 |
246 |
364 |
238 |
8 |
0 |
| VODI |
0 |
106 |
68 |
152 |
712 |
889 |
46 |
0 |
| ODI |
0 |
35 |
28 |
112 |
543 |
1356 |
76 |
0 |
| CDI |
0 |
31 |
29 |
175 |
641 |
2631 |
511 |
0 |
| VCDI |
0 |
31 |
40 |
117 |
253 |
4074 |
9998 |
877 |
|
Date: 2024-10-26:
| 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 |
3550 |
2387 |
58 |
101 |
191 |
28 |
0 |
0 |
| OW |
0 |
339 |
94 |
156 |
462 |
342 |
7 |
0 |
| VODI |
0 |
68 |
39 |
91 |
431 |
467 |
60 |
0 |
| ODI |
0 |
33 |
19 |
62 |
542 |
1280 |
125 |
0 |
| CDI |
0 |
16 |
30 |
189 |
519 |
2835 |
467 |
0 |
| VCDI |
0 |
2 |
8 |
88 |
428 |
4374 |
10803 |
1391 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
3550 |
2405 |
65 |
136 |
376 |
140 |
0 |
0 |
| OW |
0 |
306 |
81 |
110 |
334 |
304 |
26 |
0 |
| VODI |
0 |
83 |
43 |
95 |
437 |
529 |
63 |
0 |
| ODI |
0 |
34 |
24 |
70 |
443 |
1164 |
112 |
0 |
| CDI |
0 |
17 |
30 |
184 |
514 |
2927 |
503 |
0 |
| VCDI |
0 |
0 |
5 |
92 |
469 |
4262 |
10758 |
1391 |
|
Date: 2024-10-28:
| 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 |
3508 |
2345 |
61 |
64 |
14 |
0 |
0 |
0 |
| OW |
0 |
402 |
89 |
93 |
67 |
4 |
0 |
0 |
| VODI |
0 |
59 |
66 |
204 |
145 |
32 |
0 |
0 |
| ODI |
0 |
0 |
8 |
148 |
378 |
470 |
76 |
0 |
| CDI |
0 |
0 |
0 |
64 |
426 |
3953 |
573 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
322 |
4415 |
11911 |
2185 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
3508 |
2287 |
71 |
133 |
255 |
82 |
10 |
0 |
| OW |
0 |
402 |
86 |
105 |
190 |
289 |
100 |
0 |
| VODI |
0 |
93 |
32 |
119 |
121 |
354 |
211 |
0 |
| ODI |
0 |
23 |
22 |
49 |
127 |
859 |
173 |
0 |
| CDI |
0 |
1 |
13 |
155 |
211 |
2273 |
502 |
0 |
| VCDI |
0 |
0 |
0 |
12 |
448 |
5017 |
11564 |
2185 |
|
Date: 2024-10-30:
| 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 |
3976 |
2169 |
11 |
19 |
16 |
0 |
0 |
0 |
| OW |
1 |
415 |
77 |
63 |
25 |
2 |
0 |
0 |
| VODI |
0 |
157 |
52 |
125 |
83 |
17 |
0 |
0 |
| ODI |
0 |
42 |
37 |
136 |
236 |
131 |
14 |
0 |
| CDI |
0 |
5 |
17 |
170 |
438 |
1298 |
279 |
0 |
| VCDI |
0 |
0 |
0 |
12 |
326 |
6616 |
12685 |
2432 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
3977 |
2054 |
47 |
114 |
239 |
31 |
0 |
0 |
| OW |
0 |
477 |
58 |
90 |
196 |
100 |
7 |
0 |
| VODI |
0 |
141 |
36 |
83 |
73 |
339 |
159 |
0 |
| ODI |
0 |
58 |
15 |
58 |
107 |
486 |
241 |
0 |
| CDI |
0 |
57 |
33 |
130 |
225 |
1289 |
671 |
0 |
| VCDI |
0 |
1 |
5 |
50 |
284 |
5819 |
11900 |
2432 |
|
Date: 2024-11-01:
| 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 |
3992 |
2185 |
10 |
7 |
0 |
0 |
0 |
0 |
| OW |
0 |
418 |
83 |
132 |
35 |
2 |
0 |
0 |
| VODI |
0 |
130 |
81 |
178 |
68 |
16 |
0 |
0 |
| ODI |
0 |
26 |
16 |
166 |
270 |
84 |
21 |
0 |
| CDI |
0 |
3 |
6 |
170 |
487 |
724 |
244 |
0 |
| VCDI |
0 |
0 |
0 |
17 |
308 |
5172 |
13503 |
3528 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
3992 |
2128 |
61 |
130 |
215 |
96 |
1 |
0 |
| OW |
0 |
433 |
66 |
113 |
136 |
85 |
9 |
0 |
| VODI |
0 |
142 |
18 |
119 |
135 |
335 |
154 |
0 |
| ODI |
0 |
37 |
23 |
82 |
153 |
383 |
249 |
0 |
| CDI |
0 |
22 |
28 |
178 |
311 |
992 |
668 |
0 |
| VCDI |
0 |
0 |
0 |
48 |
218 |
4107 |
12687 |
3528 |
|
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