Validation of sea ice concentration - Asian sector
Bulletin date: 2023-08-24
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-08-18:
| 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 |
5854 |
9136 |
333 |
221 |
0 |
0 |
0 |
0 |
| OW |
0 |
372 |
374 |
616 |
11 |
0 |
0 |
0 |
| VODI |
0 |
67 |
147 |
2260 |
396 |
2 |
0 |
0 |
| ODI |
0 |
0 |
0 |
266 |
4615 |
897 |
1 |
0 |
| CDI |
0 |
0 |
0 |
0 |
520 |
5672 |
278 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
10 |
34 |
0 |
|
...date precedes bulletin
|
Date: 2023-08-20:
| 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 |
7804 |
7507 |
280 |
114 |
0 |
0 |
0 |
0 |
| OW |
0 |
484 |
324 |
554 |
9 |
0 |
0 |
0 |
| VODI |
0 |
126 |
234 |
2025 |
567 |
3 |
0 |
0 |
| ODI |
0 |
0 |
0 |
316 |
3790 |
1725 |
72 |
0 |
| CDI |
0 |
0 |
0 |
2 |
286 |
4384 |
1423 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
53 |
0 |
|
...date precedes bulletin
|
Date: 2023-08-22:
| 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 |
7741 |
8419 |
408 |
213 |
0 |
0 |
0 |
0 |
| OW |
0 |
89 |
319 |
832 |
9 |
0 |
0 |
0 |
| VODI |
0 |
0 |
10 |
1639 |
470 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
123 |
3458 |
121 |
0 |
0 |
| CDI |
0 |
0 |
0 |
1 |
459 |
5780 |
806 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
136 |
1048 |
1 |
|
...date precedes bulletin
|
Date: 2023-08-24:
| 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 |
8154 |
8130 |
387 |
257 |
2 |
0 |
0 |
0 |
| OW |
0 |
142 |
325 |
809 |
12 |
0 |
0 |
0 |
| VODI |
0 |
6 |
27 |
1338 |
668 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
138 |
3161 |
149 |
0 |
0 |
| CDI |
0 |
0 |
0 |
2 |
680 |
6125 |
782 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
470 |
318 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8154 |
8184 |
452 |
278 |
1 |
0 |
0 |
0 |
| OW |
0 |
86 |
259 |
765 |
14 |
0 |
0 |
0 |
| VODI |
0 |
8 |
27 |
1326 |
650 |
0 |
0 |
0 |
| ODI |
0 |
0 |
1 |
165 |
3135 |
192 |
0 |
0 |
| CDI |
0 |
0 |
0 |
10 |
723 |
6088 |
872 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
464 |
228 |
0 |
|
Date: 2023-08-26:
| 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 |
8096 |
8493 |
340 |
207 |
3 |
0 |
0 |
0 |
| OW |
0 |
203 |
293 |
781 |
19 |
0 |
0 |
0 |
| VODI |
0 |
15 |
54 |
1117 |
910 |
0 |
0 |
0 |
| ODI |
0 |
0 |
2 |
204 |
2937 |
200 |
0 |
0 |
| CDI |
0 |
0 |
0 |
8 |
1362 |
5761 |
567 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
444 |
66 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8096 |
8541 |
437 |
257 |
1 |
0 |
0 |
0 |
| OW |
0 |
151 |
202 |
696 |
26 |
0 |
0 |
0 |
| VODI |
0 |
19 |
44 |
1133 |
842 |
1 |
0 |
0 |
| ODI |
0 |
0 |
6 |
215 |
2945 |
258 |
0 |
0 |
| CDI |
0 |
0 |
0 |
16 |
1417 |
5757 |
594 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
389 |
39 |
0 |
|
Date: 2023-08-28:
| 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 |
8403 |
8599 |
447 |
164 |
1 |
0 |
0 |
0 |
| OW |
0 |
40 |
237 |
525 |
12 |
0 |
0 |
0 |
| VODI |
0 |
0 |
3 |
1648 |
334 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
162 |
4800 |
95 |
0 |
0 |
| CDI |
0 |
0 |
0 |
2 |
1804 |
4303 |
135 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
25 |
343 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8403 |
8395 |
417 |
259 |
7 |
0 |
0 |
0 |
| OW |
0 |
204 |
228 |
615 |
34 |
0 |
0 |
0 |
| VODI |
0 |
38 |
35 |
1247 |
834 |
7 |
0 |
0 |
| ODI |
0 |
2 |
7 |
362 |
2677 |
172 |
0 |
0 |
| CDI |
0 |
0 |
0 |
18 |
3397 |
4067 |
478 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
177 |
0 |
0 |
|
Date: 2023-08-30:
| 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 |
8732 |
8348 |
438 |
186 |
4 |
0 |
0 |
0 |
| OW |
0 |
39 |
176 |
527 |
16 |
0 |
0 |
0 |
| VODI |
0 |
0 |
4 |
1600 |
333 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
417 |
4545 |
37 |
0 |
0 |
| CDI |
0 |
0 |
0 |
7 |
2774 |
3879 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
20 |
0 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8732 |
8108 |
376 |
320 |
15 |
0 |
0 |
0 |
| OW |
0 |
236 |
193 |
598 |
32 |
0 |
0 |
0 |
| VODI |
0 |
39 |
41 |
1246 |
880 |
1 |
0 |
0 |
| ODI |
0 |
4 |
8 |
540 |
2632 |
181 |
0 |
0 |
| CDI |
0 |
0 |
0 |
33 |
4092 |
3571 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
21 |
183 |
0 |
0 |
|
Date: 2023-09-01:
| 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 |
9462 |
7917 |
243 |
92 |
0 |
0 |
0 |
0 |
| OW |
0 |
165 |
194 |
357 |
21 |
0 |
0 |
0 |
| VODI |
0 |
14 |
63 |
1489 |
393 |
1 |
0 |
0 |
| ODI |
0 |
0 |
0 |
365 |
4001 |
525 |
0 |
0 |
| CDI |
0 |
0 |
0 |
5 |
2179 |
4062 |
533 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9462 |
7548 |
219 |
220 |
7 |
0 |
0 |
0 |
| OW |
0 |
443 |
198 |
422 |
27 |
0 |
0 |
0 |
| VODI |
0 |
97 |
69 |
1202 |
751 |
0 |
0 |
0 |
| ODI |
0 |
8 |
13 |
417 |
2654 |
386 |
0 |
0 |
| CDI |
0 |
0 |
1 |
47 |
3052 |
3953 |
533 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
103 |
250 |
0 |
0 |
|
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