Validation of sea ice concentration - Asian sector
Bulletin date: 2023-10-12
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
10988 |
5540 |
47 |
25 |
0 |
0 |
0 |
0 |
| OW |
1 |
713 |
125 |
313 |
40 |
0 |
0 |
0 |
| VODI |
0 |
217 |
79 |
181 |
161 |
31 |
0 |
0 |
| ODI |
0 |
53 |
55 |
166 |
147 |
48 |
0 |
0 |
| CDI |
0 |
36 |
29 |
153 |
340 |
401 |
13 |
0 |
| VCDI |
0 |
3 |
3 |
76 |
246 |
3771 |
7451 |
630 |
|
...date precedes bulletin
|
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 |
9358 |
6506 |
127 |
55 |
11 |
0 |
0 |
0 |
| OW |
1 |
822 |
147 |
328 |
94 |
3 |
0 |
0 |
| VODI |
0 |
152 |
131 |
310 |
212 |
87 |
0 |
0 |
| ODI |
0 |
16 |
30 |
198 |
134 |
125 |
3 |
0 |
| CDI |
0 |
8 |
10 |
168 |
288 |
310 |
26 |
0 |
| VCDI |
0 |
0 |
0 |
45 |
191 |
2785 |
8147 |
1254 |
|
...date precedes bulletin
|
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 |
7260 |
8041 |
258 |
187 |
3 |
0 |
0 |
0 |
| OW |
0 |
395 |
212 |
557 |
74 |
0 |
0 |
0 |
| VODI |
0 |
21 |
33 |
369 |
347 |
6 |
0 |
0 |
| ODI |
0 |
5 |
3 |
88 |
369 |
17 |
0 |
0 |
| CDI |
0 |
4 |
6 |
22 |
415 |
407 |
63 |
0 |
| VCDI |
0 |
0 |
0 |
10 |
59 |
1717 |
9664 |
1470 |
|
...date precedes bulletin
|
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 |
8589 |
6067 |
214 |
253 |
27 |
0 |
0 |
0 |
| OW |
28 |
743 |
134 |
342 |
138 |
1 |
0 |
0 |
| VODI |
0 |
103 |
55 |
350 |
374 |
16 |
0 |
0 |
| ODI |
0 |
3 |
2 |
69 |
348 |
62 |
0 |
0 |
| CDI |
0 |
7 |
7 |
15 |
368 |
268 |
23 |
0 |
| VCDI |
0 |
0 |
0 |
8 |
104 |
2120 |
6431 |
4813 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8582 |
6221 |
216 |
265 |
34 |
0 |
0 |
0 |
| OW |
30 |
636 |
132 |
414 |
129 |
1 |
0 |
0 |
| VODI |
5 |
58 |
53 |
276 |
423 |
20 |
0 |
0 |
| ODI |
0 |
3 |
5 |
56 |
353 |
69 |
0 |
0 |
| CDI |
0 |
5 |
6 |
22 |
315 |
444 |
44 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
105 |
1933 |
6410 |
4813 |
|
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 |
7430 |
6416 |
221 |
228 |
41 |
0 |
0 |
0 |
| OW |
83 |
680 |
172 |
425 |
169 |
1 |
0 |
0 |
| VODI |
1 |
119 |
101 |
489 |
493 |
64 |
0 |
0 |
| ODI |
0 |
0 |
2 |
58 |
311 |
181 |
0 |
0 |
| CDI |
0 |
2 |
9 |
39 |
257 |
363 |
12 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
144 |
1779 |
5743 |
6044 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7441 |
6579 |
238 |
321 |
46 |
0 |
0 |
0 |
| OW |
72 |
564 |
184 |
433 |
211 |
1 |
0 |
0 |
| VODI |
1 |
72 |
69 |
370 |
498 |
89 |
0 |
0 |
| ODI |
0 |
0 |
6 |
71 |
282 |
207 |
0 |
0 |
| CDI |
0 |
2 |
8 |
42 |
227 |
407 |
20 |
0 |
| VCDI |
0 |
0 |
0 |
7 |
151 |
1684 |
5735 |
6044 |
|
Date: 2023-10-16:
| 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 |
4360 |
8104 |
324 |
359 |
33 |
0 |
0 |
0 |
| OW |
9 |
549 |
193 |
348 |
109 |
0 |
0 |
0 |
| VODI |
0 |
45 |
95 |
464 |
510 |
14 |
0 |
0 |
| ODI |
0 |
0 |
0 |
111 |
703 |
98 |
0 |
0 |
| CDI |
0 |
0 |
0 |
26 |
503 |
1012 |
21 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
87 |
1414 |
5073 |
7513 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
4357 |
8097 |
363 |
517 |
158 |
0 |
0 |
0 |
| OW |
12 |
521 |
158 |
315 |
290 |
27 |
0 |
0 |
| VODI |
0 |
79 |
89 |
321 |
827 |
188 |
5 |
0 |
| ODI |
0 |
1 |
2 |
97 |
324 |
451 |
18 |
0 |
| CDI |
0 |
0 |
0 |
50 |
165 |
537 |
116 |
0 |
| VCDI |
0 |
0 |
0 |
13 |
181 |
1335 |
4955 |
7513 |
|
Date: 2023-10-18:
| 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 |
3374 |
6167 |
465 |
950 |
314 |
3 |
0 |
0 |
| OW |
0 |
756 |
276 |
565 |
350 |
85 |
0 |
0 |
| VODI |
0 |
85 |
82 |
278 |
542 |
138 |
0 |
0 |
| ODI |
0 |
0 |
1 |
54 |
474 |
459 |
0 |
0 |
| CDI |
0 |
0 |
0 |
9 |
174 |
921 |
268 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
118 |
1572 |
7060 |
6542 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
3368 |
6410 |
536 |
1095 |
553 |
43 |
0 |
0 |
| OW |
5 |
437 |
179 |
411 |
447 |
187 |
3 |
0 |
| VODI |
1 |
151 |
90 |
238 |
399 |
393 |
16 |
0 |
| ODI |
0 |
10 |
17 |
76 |
240 |
724 |
130 |
0 |
| CDI |
0 |
0 |
2 |
33 |
158 |
608 |
504 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
175 |
1223 |
6675 |
6542 |
|
Date: 2023-10-20:
| 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 |
3202 |
4460 |
307 |
446 |
380 |
5 |
0 |
0 |
| OW |
0 |
634 |
272 |
697 |
805 |
253 |
0 |
0 |
| VODI |
0 |
140 |
102 |
563 |
947 |
397 |
0 |
0 |
| ODI |
0 |
18 |
9 |
123 |
430 |
462 |
3 |
0 |
| CDI |
0 |
6 |
6 |
38 |
287 |
903 |
80 |
0 |
| VCDI |
0 |
1 |
5 |
26 |
314 |
2391 |
8975 |
4395 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
3202 |
4487 |
400 |
775 |
846 |
95 |
0 |
0 |
| OW |
0 |
545 |
138 |
477 |
905 |
349 |
0 |
0 |
| VODI |
0 |
178 |
98 |
356 |
569 |
593 |
12 |
0 |
| ODI |
0 |
38 |
45 |
132 |
271 |
643 |
40 |
0 |
| CDI |
0 |
11 |
18 |
123 |
203 |
896 |
434 |
0 |
| VCDI |
0 |
0 |
2 |
30 |
369 |
1835 |
8572 |
4395 |
|
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