Validation of sea ice concentration - Asian sector
Bulletin date: 2023-10-05
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-09-30:
| 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 |
13888 |
4545 |
51 |
35 |
10 |
0 |
0 |
0 |
| OW |
0 |
795 |
214 |
371 |
23 |
2 |
0 |
0 |
| VODI |
0 |
76 |
63 |
658 |
431 |
31 |
0 |
0 |
| ODI |
0 |
11 |
22 |
98 |
1156 |
802 |
3 |
0 |
| CDI |
0 |
0 |
7 |
92 |
311 |
1983 |
964 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
137 |
435 |
4054 |
1828 |
|
...date precedes bulletin
|
Date: 2023-10-02:
| 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 |
12997 |
4345 |
43 |
48 |
3 |
0 |
0 |
0 |
| OW |
0 |
1101 |
233 |
366 |
91 |
2 |
0 |
0 |
| VODI |
0 |
63 |
56 |
504 |
655 |
129 |
0 |
0 |
| ODI |
0 |
0 |
2 |
107 |
426 |
845 |
76 |
0 |
| CDI |
0 |
0 |
0 |
46 |
175 |
2272 |
967 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
278 |
4134 |
3129 |
|
...date precedes bulletin
|
Date: 2023-10-04:
| 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 |
11712 |
5998 |
40 |
10 |
0 |
0 |
0 |
0 |
| OW |
0 |
473 |
253 |
240 |
7 |
0 |
0 |
0 |
| VODI |
0 |
16 |
42 |
521 |
105 |
0 |
0 |
0 |
| ODI |
0 |
0 |
2 |
168 |
409 |
26 |
0 |
0 |
| CDI |
0 |
0 |
0 |
27 |
747 |
635 |
46 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
124 |
3055 |
6332 |
2108 |
|
...date precedes bulletin
|
Date: 2023-10-06:
| 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 |
12548 |
5166 |
30 |
28 |
0 |
0 |
0 |
0 |
| OW |
0 |
511 |
123 |
282 |
47 |
0 |
0 |
0 |
| VODI |
0 |
75 |
88 |
242 |
185 |
38 |
0 |
0 |
| ODI |
0 |
20 |
14 |
213 |
158 |
123 |
0 |
0 |
| CDI |
0 |
10 |
17 |
111 |
437 |
512 |
67 |
0 |
| VCDI |
0 |
0 |
0 |
26 |
248 |
2849 |
5209 |
3719 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12547 |
5204 |
60 |
79 |
0 |
0 |
0 |
0 |
| OW |
1 |
460 |
91 |
259 |
66 |
0 |
0 |
0 |
| VODI |
0 |
89 |
92 |
244 |
178 |
47 |
0 |
0 |
| ODI |
0 |
20 |
13 |
189 |
176 |
127 |
0 |
0 |
| CDI |
0 |
9 |
16 |
111 |
374 |
495 |
141 |
0 |
| VCDI |
0 |
0 |
0 |
20 |
281 |
2853 |
5135 |
3719 |
|
Date: 2023-10-08:
| 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 |
10427 |
6848 |
74 |
25 |
5 |
0 |
0 |
0 |
| OW |
2 |
638 |
209 |
368 |
19 |
0 |
0 |
0 |
| VODI |
0 |
122 |
109 |
352 |
169 |
31 |
0 |
0 |
| ODI |
0 |
6 |
20 |
260 |
138 |
65 |
1 |
0 |
| CDI |
0 |
2 |
4 |
162 |
480 |
354 |
32 |
0 |
| VCDI |
0 |
0 |
0 |
26 |
211 |
1957 |
4670 |
5310 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10410 |
6703 |
105 |
40 |
5 |
0 |
0 |
0 |
| OW |
19 |
737 |
180 |
357 |
47 |
1 |
0 |
0 |
| VODI |
0 |
167 |
102 |
338 |
133 |
37 |
0 |
0 |
| ODI |
0 |
7 |
26 |
290 |
162 |
56 |
5 |
0 |
| CDI |
0 |
2 |
3 |
139 |
406 |
344 |
53 |
0 |
| VCDI |
0 |
0 |
0 |
29 |
269 |
1969 |
4645 |
5310 |
|
Date: 2023-10-10:
| 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 |
10310 |
6404 |
126 |
42 |
0 |
0 |
0 |
0 |
| OW |
50 |
404 |
297 |
409 |
0 |
0 |
0 |
0 |
| VODI |
1 |
3 |
8 |
772 |
117 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
97 |
438 |
12 |
17 |
2 |
| CDI |
0 |
0 |
0 |
17 |
417 |
628 |
161 |
80 |
| VCDI |
0 |
0 |
0 |
0 |
72 |
1014 |
4796 |
6402 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10258 |
5903 |
103 |
104 |
3 |
0 |
0 |
0 |
| OW |
99 |
704 |
200 |
342 |
134 |
1 |
0 |
0 |
| VODI |
4 |
203 |
109 |
448 |
252 |
125 |
19 |
0 |
| ODI |
0 |
1 |
19 |
248 |
101 |
122 |
46 |
0 |
| CDI |
0 |
0 |
0 |
177 |
235 |
145 |
199 |
0 |
| VCDI |
0 |
0 |
0 |
18 |
319 |
1261 |
4710 |
6484 |
|
Date: 2023-10-12:
| 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 |
8398 |
7167 |
286 |
390 |
1 |
0 |
0 |
0 |
| OW |
24 |
489 |
125 |
655 |
77 |
0 |
0 |
0 |
| VODI |
11 |
31 |
5 |
380 |
451 |
1 |
0 |
0 |
| ODI |
0 |
0 |
0 |
46 |
417 |
30 |
0 |
0 |
| CDI |
0 |
0 |
0 |
17 |
378 |
374 |
9 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
79 |
1385 |
4548 |
7322 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8352 |
6798 |
191 |
333 |
35 |
0 |
0 |
0 |
| OW |
69 |
672 |
142 |
528 |
126 |
10 |
0 |
0 |
| VODI |
12 |
203 |
48 |
356 |
514 |
109 |
0 |
0 |
| ODI |
0 |
14 |
30 |
117 |
271 |
240 |
15 |
0 |
| CDI |
0 |
0 |
5 |
114 |
255 |
272 |
125 |
0 |
| VCDI |
0 |
0 |
0 |
40 |
202 |
1159 |
4417 |
7322 |
|
Date: 2023-10-14:
| 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 |
8858 |
5930 |
259 |
390 |
49 |
0 |
0 |
0 |
| OW |
66 |
811 |
97 |
430 |
138 |
0 |
0 |
0 |
| VODI |
14 |
208 |
63 |
502 |
391 |
24 |
0 |
0 |
| ODI |
0 |
6 |
0 |
58 |
354 |
102 |
0 |
0 |
| CDI |
0 |
0 |
0 |
25 |
324 |
328 |
13 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
120 |
1699 |
5088 |
6749 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8807 |
5521 |
192 |
332 |
219 |
8 |
0 |
0 |
| OW |
121 |
1000 |
121 |
449 |
223 |
57 |
0 |
0 |
| VODI |
10 |
372 |
66 |
320 |
425 |
267 |
22 |
0 |
| ODI |
0 |
47 |
22 |
136 |
166 |
301 |
82 |
0 |
| CDI |
0 |
15 |
17 |
125 |
147 |
364 |
99 |
0 |
| VCDI |
0 |
0 |
1 |
43 |
196 |
1156 |
4898 |
6749 |
|
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