Validation of sea ice concentration - Asian sector
Bulletin date: 2023-08-31
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-08-25:
| 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 |
6795 |
9442 |
496 |
280 |
3 |
0 |
0 |
0 |
| OW |
0 |
165 |
320 |
819 |
18 |
0 |
0 |
0 |
| VODI |
0 |
11 |
43 |
1233 |
763 |
0 |
0 |
0 |
| ODI |
0 |
0 |
2 |
212 |
3024 |
175 |
0 |
0 |
| CDI |
0 |
0 |
0 |
5 |
1002 |
6155 |
552 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
445 |
122 |
0 |
|
...date precedes bulletin
|
Date: 2023-08-27:
| 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 |
7967 |
8731 |
295 |
215 |
3 |
0 |
0 |
0 |
| OW |
0 |
231 |
307 |
716 |
22 |
0 |
0 |
0 |
| VODI |
0 |
25 |
55 |
1180 |
851 |
3 |
0 |
0 |
| ODI |
0 |
0 |
0 |
265 |
2886 |
117 |
0 |
0 |
| CDI |
0 |
0 |
0 |
6 |
2501 |
4832 |
567 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
300 |
7 |
0 |
|
...date precedes bulletin
|
Date: 2023-08-29:
| 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 |
8659 |
8439 |
455 |
212 |
3 |
0 |
0 |
0 |
| OW |
0 |
27 |
144 |
549 |
14 |
0 |
0 |
0 |
| VODI |
0 |
0 |
4 |
1636 |
319 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
252 |
4711 |
54 |
0 |
0 |
| CDI |
0 |
0 |
0 |
5 |
2435 |
3799 |
261 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
28 |
76 |
0 |
|
...date precedes bulletin
|
Date: 2023-08-31:
| 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 |
8852 |
8356 |
350 |
141 |
4 |
0 |
0 |
0 |
| OW |
0 |
97 |
187 |
420 |
23 |
0 |
0 |
0 |
| VODI |
0 |
7 |
38 |
1574 |
319 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
410 |
4558 |
11 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
2612 |
4123 |
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 |
8852 |
8327 |
354 |
183 |
6 |
0 |
0 |
0 |
| OW |
0 |
122 |
171 |
377 |
22 |
0 |
0 |
0 |
| VODI |
0 |
11 |
48 |
1384 |
348 |
0 |
0 |
0 |
| ODI |
0 |
0 |
2 |
601 |
4367 |
13 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
2773 |
4120 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
|
Date: 2023-09-02:
| 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 |
11624 |
5751 |
165 |
83 |
3 |
0 |
0 |
0 |
| OW |
0 |
220 |
212 |
349 |
27 |
0 |
0 |
0 |
| VODI |
0 |
17 |
65 |
1531 |
332 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
530 |
4174 |
168 |
0 |
0 |
| CDI |
0 |
0 |
0 |
12 |
2991 |
3337 |
483 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
8 |
0 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11624 |
5663 |
173 |
91 |
7 |
0 |
0 |
0 |
| OW |
0 |
269 |
200 |
310 |
23 |
0 |
0 |
0 |
| VODI |
0 |
56 |
64 |
1391 |
403 |
0 |
0 |
0 |
| ODI |
0 |
0 |
5 |
700 |
3922 |
186 |
0 |
0 |
| CDI |
0 |
0 |
0 |
13 |
3172 |
3317 |
483 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
10 |
0 |
0 |
|
Date: 2023-09-04:
| 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 |
11530 |
6024 |
198 |
72 |
0 |
0 |
0 |
0 |
| OW |
0 |
69 |
251 |
353 |
7 |
0 |
0 |
0 |
| VODI |
0 |
0 |
3 |
1831 |
285 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
198 |
5676 |
174 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
1243 |
4042 |
94 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
16 |
16 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11530 |
5656 |
135 |
96 |
14 |
0 |
0 |
0 |
| OW |
0 |
381 |
220 |
225 |
31 |
0 |
0 |
0 |
| VODI |
0 |
56 |
94 |
1393 |
399 |
5 |
0 |
0 |
| ODI |
0 |
0 |
3 |
721 |
3835 |
268 |
0 |
0 |
| CDI |
0 |
0 |
0 |
19 |
2932 |
3942 |
110 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
17 |
0 |
0 |
|
Date: 2023-09-06:
| 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 |
11763 |
5830 |
190 |
99 |
0 |
0 |
0 |
0 |
| OW |
0 |
116 |
214 |
397 |
17 |
0 |
0 |
0 |
| VODI |
0 |
1 |
22 |
1588 |
417 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
380 |
4430 |
1047 |
0 |
0 |
| CDI |
0 |
0 |
0 |
12 |
1218 |
3800 |
523 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
15 |
0 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11763 |
5433 |
98 |
96 |
10 |
0 |
0 |
0 |
| OW |
0 |
429 |
197 |
227 |
30 |
0 |
0 |
0 |
| VODI |
0 |
84 |
117 |
1332 |
273 |
0 |
0 |
0 |
| ODI |
0 |
1 |
14 |
730 |
3694 |
413 |
0 |
0 |
| CDI |
0 |
0 |
0 |
91 |
2069 |
4442 |
523 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
9 |
7 |
0 |
0 |
|
Date: 2023-09-08:
| 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 |
11971 |
5600 |
186 |
100 |
3 |
0 |
0 |
0 |
| OW |
0 |
232 |
212 |
400 |
14 |
0 |
0 |
0 |
| VODI |
0 |
21 |
60 |
1686 |
354 |
0 |
0 |
0 |
| ODI |
0 |
0 |
2 |
448 |
4117 |
1117 |
0 |
0 |
| CDI |
0 |
0 |
0 |
48 |
1606 |
3752 |
150 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
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 |
11971 |
5085 |
91 |
90 |
12 |
0 |
0 |
0 |
| OW |
0 |
603 |
149 |
161 |
13 |
0 |
0 |
0 |
| VODI |
0 |
148 |
194 |
1298 |
160 |
0 |
0 |
0 |
| ODI |
0 |
16 |
22 |
958 |
3413 |
562 |
0 |
0 |
| CDI |
0 |
1 |
4 |
175 |
2495 |
4307 |
150 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
0 |
0 |
0 |
|
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