Validation of sea ice concentration - Asian sector
Bulletin date: 2024-10-31
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-10-25:
| 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 |
3441 |
2391 |
76 |
154 |
452 |
17 |
0 |
0 |
| OW |
0 |
305 |
83 |
216 |
615 |
164 |
0 |
0 |
| VODI |
0 |
45 |
55 |
104 |
650 |
716 |
39 |
0 |
| ODI |
0 |
25 |
29 |
81 |
667 |
1235 |
211 |
0 |
| CDI |
0 |
18 |
26 |
185 |
593 |
2805 |
388 |
0 |
| VCDI |
0 |
7 |
17 |
156 |
272 |
4169 |
9836 |
1839 |
|
...date precedes bulletin
|
Date: 2024-10-27:
| 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 |
3730 |
2211 |
38 |
74 |
93 |
53 |
0 |
0 |
| OW |
0 |
406 |
67 |
126 |
287 |
383 |
29 |
0 |
| VODI |
0 |
82 |
47 |
76 |
214 |
479 |
126 |
0 |
| ODI |
0 |
35 |
15 |
65 |
341 |
992 |
139 |
0 |
| CDI |
0 |
9 |
20 |
212 |
343 |
2834 |
469 |
0 |
| VCDI |
0 |
0 |
0 |
41 |
512 |
4440 |
11194 |
1900 |
|
...date precedes bulletin
|
Date: 2024-10-29:
| 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 |
3615 |
2301 |
64 |
35 |
25 |
0 |
0 |
0 |
| OW |
1 |
373 |
94 |
93 |
45 |
0 |
0 |
0 |
| VODI |
0 |
107 |
58 |
158 |
121 |
13 |
0 |
0 |
| ODI |
0 |
12 |
31 |
148 |
266 |
200 |
2 |
0 |
| CDI |
0 |
0 |
1 |
116 |
492 |
1989 |
483 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
431 |
6312 |
12788 |
1706 |
|
...date precedes bulletin
|
Date: 2024-10-31:
| 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 |
4075 |
2172 |
9 |
15 |
2 |
0 |
0 |
0 |
| OW |
0 |
432 |
80 |
76 |
22 |
1 |
0 |
0 |
| VODI |
0 |
158 |
64 |
126 |
67 |
9 |
1 |
0 |
| ODI |
0 |
50 |
29 |
149 |
251 |
76 |
26 |
0 |
| CDI |
0 |
17 |
28 |
170 |
470 |
871 |
220 |
0 |
| VCDI |
0 |
0 |
0 |
27 |
328 |
6187 |
12948 |
2926 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
4075 |
2129 |
16 |
17 |
8 |
0 |
0 |
0 |
| OW |
0 |
448 |
66 |
59 |
19 |
4 |
0 |
0 |
| VODI |
0 |
173 |
67 |
124 |
50 |
8 |
1 |
0 |
| ODI |
0 |
48 |
29 |
140 |
223 |
74 |
26 |
0 |
| CDI |
0 |
26 |
28 |
176 |
421 |
869 |
234 |
0 |
| VCDI |
0 |
5 |
4 |
47 |
419 |
6189 |
12934 |
2926 |
|
Date: 2024-11-02:
| 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 |
4022 |
2108 |
10 |
1 |
4 |
0 |
0 |
0 |
| OW |
1 |
381 |
56 |
135 |
31 |
0 |
0 |
0 |
| VODI |
0 |
170 |
91 |
185 |
108 |
16 |
0 |
0 |
| ODI |
0 |
21 |
22 |
148 |
269 |
91 |
16 |
0 |
| CDI |
0 |
6 |
9 |
143 |
518 |
677 |
167 |
0 |
| VCDI |
0 |
0 |
0 |
28 |
361 |
4866 |
12412 |
5009 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
4022 |
2136 |
7 |
4 |
4 |
0 |
0 |
0 |
| OW |
1 |
345 |
53 |
87 |
35 |
1 |
0 |
0 |
| VODI |
0 |
167 |
98 |
241 |
67 |
18 |
0 |
0 |
| ODI |
0 |
19 |
17 |
132 |
222 |
88 |
21 |
0 |
| CDI |
0 |
16 |
8 |
137 |
493 |
614 |
167 |
0 |
| VCDI |
0 |
3 |
5 |
39 |
470 |
4929 |
12407 |
5009 |
|
Date: 2024-11-04:
| 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 |
3522 |
2266 |
14 |
14 |
0 |
0 |
0 |
0 |
| OW |
1 |
332 |
54 |
53 |
3 |
0 |
0 |
0 |
| VODI |
0 |
120 |
78 |
324 |
93 |
7 |
0 |
0 |
| ODI |
0 |
5 |
5 |
164 |
408 |
83 |
2 |
0 |
| CDI |
0 |
2 |
1 |
45 |
820 |
843 |
91 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
153 |
4208 |
11823 |
6548 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
3522 |
2365 |
28 |
17 |
0 |
0 |
0 |
0 |
| OW |
1 |
275 |
48 |
85 |
14 |
3 |
0 |
0 |
| VODI |
0 |
79 |
64 |
315 |
190 |
21 |
0 |
0 |
| ODI |
0 |
6 |
9 |
91 |
301 |
71 |
3 |
0 |
| CDI |
0 |
0 |
3 |
88 |
467 |
368 |
27 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
505 |
4678 |
11886 |
6548 |
|
Date: 2024-11-06:
| 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 |
2773 |
2322 |
54 |
92 |
16 |
0 |
0 |
0 |
| OW |
1 |
178 |
85 |
139 |
80 |
1 |
0 |
0 |
| VODI |
0 |
38 |
60 |
186 |
177 |
16 |
0 |
0 |
| ODI |
0 |
11 |
18 |
87 |
383 |
174 |
0 |
0 |
| CDI |
0 |
19 |
6 |
38 |
306 |
923 |
23 |
0 |
| VCDI |
0 |
44 |
14 |
87 |
827 |
5504 |
8934 |
8466 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2773 |
2242 |
78 |
116 |
36 |
0 |
0 |
0 |
| OW |
1 |
189 |
46 |
142 |
65 |
1 |
0 |
0 |
| VODI |
0 |
93 |
60 |
132 |
230 |
36 |
0 |
0 |
| ODI |
0 |
27 |
33 |
90 |
258 |
224 |
0 |
0 |
| CDI |
0 |
12 |
4 |
50 |
191 |
627 |
17 |
0 |
| VCDI |
0 |
49 |
16 |
99 |
1009 |
5730 |
8940 |
8466 |
|
Date: 2024-11-08:
| 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 |
2667 |
2167 |
54 |
68 |
55 |
0 |
0 |
0 |
| OW |
1 |
173 |
67 |
111 |
90 |
4 |
0 |
0 |
| VODI |
0 |
58 |
51 |
181 |
176 |
74 |
0 |
0 |
| ODI |
0 |
3 |
8 |
83 |
191 |
203 |
11 |
0 |
| CDI |
0 |
0 |
0 |
30 |
205 |
823 |
87 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
164 |
3777 |
10016 |
10484 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2667 |
1841 |
34 |
27 |
3 |
0 |
0 |
0 |
| OW |
1 |
301 |
54 |
104 |
44 |
0 |
0 |
0 |
| VODI |
0 |
217 |
54 |
145 |
206 |
34 |
0 |
0 |
| ODI |
0 |
37 |
30 |
118 |
198 |
165 |
10 |
0 |
| CDI |
0 |
5 |
8 |
69 |
177 |
529 |
61 |
17 |
| VCDI |
0 |
0 |
0 |
10 |
253 |
4153 |
10043 |
10467 |
|
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