Validation of sea ice concentration - Asian sector
Bulletin date: 2023-09-14
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
|
...date precedes bulletin
|
Date: 2023-09-10:
| 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 |
11391 |
6293 |
111 |
77 |
0 |
0 |
0 |
0 |
| OW |
0 |
423 |
258 |
283 |
18 |
0 |
0 |
0 |
| VODI |
0 |
67 |
110 |
1702 |
251 |
0 |
0 |
0 |
| ODI |
0 |
11 |
17 |
587 |
4464 |
500 |
0 |
0 |
| CDI |
0 |
0 |
0 |
41 |
2412 |
3028 |
38 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
...date precedes bulletin
|
Date: 2023-09-12:
| 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 |
12092 |
6207 |
177 |
94 |
0 |
0 |
0 |
0 |
| OW |
0 |
255 |
246 |
544 |
11 |
0 |
0 |
0 |
| VODI |
0 |
4 |
44 |
1895 |
168 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
294 |
5861 |
282 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
727 |
3181 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
...date precedes bulletin
|
Date: 2023-09-14:
| 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 |
12549 |
5724 |
141 |
70 |
0 |
0 |
0 |
0 |
| OW |
0 |
497 |
274 |
530 |
10 |
0 |
0 |
0 |
| VODI |
0 |
17 |
78 |
1628 |
189 |
0 |
0 |
0 |
| ODI |
0 |
0 |
1 |
494 |
4948 |
518 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
1264 |
3150 |
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 |
12549 |
5906 |
193 |
137 |
0 |
0 |
0 |
0 |
| OW |
0 |
314 |
208 |
496 |
8 |
0 |
0 |
0 |
| VODI |
0 |
18 |
93 |
1553 |
205 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
533 |
5259 |
676 |
0 |
0 |
| CDI |
0 |
0 |
0 |
3 |
939 |
2992 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Date: 2023-09-16:
| 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 |
12730 |
5369 |
97 |
58 |
0 |
0 |
0 |
0 |
| OW |
0 |
700 |
315 |
428 |
11 |
0 |
0 |
0 |
| VODI |
0 |
21 |
107 |
1414 |
269 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
451 |
4050 |
803 |
62 |
0 |
| CDI |
0 |
0 |
0 |
2 |
1392 |
3763 |
40 |
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 |
12730 |
5625 |
164 |
72 |
0 |
0 |
0 |
0 |
| OW |
0 |
418 |
225 |
454 |
12 |
0 |
0 |
0 |
| VODI |
0 |
47 |
129 |
1360 |
265 |
0 |
0 |
0 |
| ODI |
0 |
0 |
1 |
461 |
4300 |
923 |
52 |
0 |
| CDI |
0 |
0 |
0 |
6 |
1145 |
3643 |
50 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Date: 2023-09-18:
| 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 |
12690 |
5733 |
228 |
120 |
1 |
0 |
0 |
0 |
| OW |
0 |
184 |
250 |
493 |
6 |
0 |
0 |
0 |
| VODI |
0 |
0 |
24 |
1405 |
159 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
113 |
3431 |
63 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
756 |
6098 |
135 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
13 |
180 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12690 |
5225 |
134 |
78 |
0 |
0 |
0 |
0 |
| OW |
0 |
598 |
210 |
337 |
15 |
0 |
0 |
0 |
| VODI |
0 |
94 |
150 |
1293 |
327 |
0 |
0 |
0 |
| ODI |
0 |
0 |
8 |
417 |
2906 |
1369 |
52 |
0 |
| CDI |
0 |
0 |
0 |
6 |
1105 |
4805 |
263 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Date: 2023-09-20:
| 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 |
11752 |
6515 |
232 |
144 |
0 |
0 |
0 |
0 |
| OW |
0 |
228 |
204 |
469 |
0 |
0 |
0 |
0 |
| VODI |
0 |
14 |
53 |
1081 |
262 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
172 |
2679 |
349 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
1355 |
5916 |
573 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
55 |
29 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11752 |
5751 |
75 |
38 |
0 |
0 |
0 |
0 |
| OW |
0 |
777 |
220 |
253 |
8 |
0 |
0 |
0 |
| VODI |
0 |
222 |
172 |
1140 |
327 |
0 |
0 |
0 |
| ODI |
0 |
7 |
22 |
418 |
2474 |
654 |
6 |
0 |
| CDI |
0 |
0 |
0 |
17 |
1487 |
5666 |
596 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Date: 2023-09-22:
| 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 |
12925 |
5053 |
124 |
156 |
47 |
0 |
0 |
0 |
| OW |
0 |
553 |
220 |
250 |
190 |
41 |
0 |
0 |
| VODI |
0 |
40 |
101 |
700 |
263 |
215 |
0 |
0 |
| ODI |
0 |
0 |
0 |
276 |
1810 |
550 |
72 |
0 |
| CDI |
0 |
0 |
0 |
8 |
574 |
5767 |
1906 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
88 |
153 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12925 |
4426 |
67 |
40 |
0 |
0 |
0 |
0 |
| OW |
0 |
729 |
106 |
255 |
58 |
2 |
0 |
0 |
| VODI |
0 |
433 |
203 |
591 |
509 |
203 |
0 |
0 |
| ODI |
0 |
58 |
69 |
448 |
1248 |
875 |
96 |
0 |
| CDI |
0 |
0 |
0 |
56 |
1069 |
5551 |
1920 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
30 |
115 |
0 |
|
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