Validation of sea ice concentration - Asian sector
Bulletin date: 2023-09-07
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
|
...date precedes bulletin
|
Date: 2023-09-03:
| 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 |
11251 |
6081 |
143 |
86 |
3 |
0 |
0 |
0 |
| OW |
0 |
235 |
235 |
339 |
34 |
0 |
0 |
0 |
| VODI |
0 |
20 |
74 |
1614 |
270 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
701 |
4010 |
141 |
0 |
0 |
| CDI |
0 |
0 |
0 |
20 |
3191 |
3600 |
11 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
23 |
0 |
0 |
|
...date precedes bulletin
|
Date: 2023-09-05:
| 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 |
11225 |
6379 |
198 |
95 |
0 |
0 |
0 |
0 |
| OW |
0 |
69 |
223 |
380 |
6 |
0 |
0 |
0 |
| VODI |
0 |
0 |
5 |
1725 |
321 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
396 |
5145 |
377 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
1343 |
3720 |
475 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
...date precedes bulletin
|
Date: 2023-09-07:
| 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 |
9503 |
7983 |
307 |
105 |
3 |
0 |
0 |
0 |
| OW |
0 |
139 |
210 |
426 |
18 |
0 |
0 |
0 |
| VODI |
0 |
9 |
39 |
1498 |
528 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
376 |
3640 |
1740 |
0 |
0 |
| CDI |
0 |
0 |
0 |
44 |
1600 |
3418 |
456 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
40 |
0 |
0 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9503 |
8007 |
337 |
163 |
4 |
0 |
0 |
0 |
| OW |
0 |
116 |
180 |
385 |
21 |
0 |
0 |
0 |
| VODI |
0 |
8 |
39 |
1445 |
610 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
431 |
3417 |
1622 |
0 |
0 |
| CDI |
0 |
0 |
0 |
25 |
1732 |
3536 |
456 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
45 |
0 |
0 |
0 |
|
Date: 2023-09-09:
| 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 |
12039 |
5522 |
172 |
119 |
0 |
0 |
0 |
0 |
| OW |
0 |
279 |
235 |
398 |
10 |
0 |
0 |
0 |
| VODI |
0 |
24 |
67 |
1650 |
378 |
0 |
0 |
0 |
| ODI |
0 |
0 |
4 |
485 |
4373 |
845 |
20 |
0 |
| CDI |
0 |
0 |
0 |
28 |
1651 |
3694 |
89 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12039 |
5597 |
224 |
192 |
0 |
0 |
0 |
0 |
| OW |
0 |
194 |
177 |
402 |
10 |
0 |
0 |
0 |
| VODI |
0 |
33 |
72 |
1535 |
399 |
0 |
0 |
0 |
| ODI |
0 |
1 |
5 |
533 |
4086 |
899 |
16 |
0 |
| CDI |
0 |
0 |
0 |
18 |
1917 |
3640 |
93 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Date: 2023-09-11:
| 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 |
11346 |
6805 |
157 |
85 |
0 |
0 |
0 |
0 |
| OW |
0 |
230 |
303 |
447 |
3 |
0 |
0 |
0 |
| VODI |
0 |
1 |
22 |
2035 |
233 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
226 |
6240 |
213 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
573 |
3163 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11344 |
6530 |
145 |
135 |
1 |
0 |
0 |
0 |
| OW |
2 |
392 |
172 |
314 |
24 |
0 |
0 |
0 |
| VODI |
0 |
94 |
142 |
1477 |
255 |
0 |
0 |
0 |
| ODI |
0 |
20 |
22 |
829 |
3702 |
196 |
0 |
0 |
| CDI |
0 |
0 |
1 |
38 |
3067 |
3180 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Date: 2023-09-13:
| 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 |
10455 |
7577 |
376 |
128 |
0 |
0 |
0 |
0 |
| OW |
0 |
373 |
275 |
570 |
6 |
0 |
0 |
0 |
| VODI |
0 |
8 |
40 |
1736 |
198 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
353 |
5527 |
318 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
995 |
3147 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10435 |
7310 |
338 |
195 |
5 |
0 |
0 |
0 |
| OW |
20 |
438 |
162 |
327 |
22 |
0 |
0 |
0 |
| VODI |
0 |
183 |
171 |
1347 |
184 |
0 |
0 |
0 |
| ODI |
0 |
27 |
20 |
834 |
3348 |
230 |
0 |
0 |
| CDI |
0 |
0 |
0 |
84 |
3167 |
3232 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
3 |
0 |
0 |
|
Date: 2023-09-15:
| 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 |
12644 |
5555 |
120 |
93 |
0 |
0 |
0 |
0 |
| OW |
0 |
545 |
304 |
499 |
25 |
0 |
0 |
0 |
| VODI |
0 |
17 |
59 |
1477 |
307 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
387 |
4667 |
608 |
0 |
0 |
| CDI |
0 |
0 |
0 |
3 |
1538 |
3234 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12644 |
5147 |
155 |
156 |
12 |
0 |
0 |
0 |
| OW |
0 |
619 |
111 |
359 |
41 |
0 |
0 |
0 |
| VODI |
0 |
313 |
169 |
1113 |
314 |
0 |
0 |
0 |
| ODI |
0 |
38 |
48 |
764 |
3006 |
291 |
0 |
0 |
| CDI |
0 |
0 |
0 |
67 |
3164 |
3537 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
14 |
0 |
0 |
|
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