Validation of sea ice concentration - Asian sector
Bulletin date: 2023-09-14
Data source: OSI SAF N.H. AMSR 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 |
10608 |
5883 |
34 |
11 |
0 |
0 |
0 |
0 |
| OW |
131 |
1192 |
182 |
120 |
0 |
0 |
0 |
0 |
| VODI |
0 |
296 |
255 |
1652 |
506 |
0 |
0 |
0 |
| ODI |
0 |
38 |
41 |
695 |
4268 |
1693 |
0 |
0 |
| CDI |
0 |
0 |
2 |
55 |
1290 |
3083 |
24 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
23 |
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 |
12554 |
4124 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
92 |
1345 |
120 |
64 |
0 |
0 |
0 |
0 |
| VODI |
0 |
445 |
332 |
1518 |
485 |
2 |
0 |
0 |
| ODI |
0 |
65 |
51 |
860 |
5040 |
588 |
0 |
0 |
| CDI |
0 |
0 |
0 |
52 |
1452 |
2870 |
14 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
9 |
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 |
12383 |
4962 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
1424 |
151 |
76 |
0 |
0 |
0 |
0 |
| VODI |
0 |
237 |
352 |
1815 |
348 |
0 |
0 |
0 |
| ODI |
0 |
3 |
9 |
764 |
5656 |
438 |
0 |
0 |
| CDI |
0 |
0 |
1 |
7 |
631 |
2825 |
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 |
12773 |
4663 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
1403 |
169 |
78 |
1 |
0 |
0 |
0 |
| VODI |
0 |
289 |
336 |
1690 |
460 |
3 |
0 |
0 |
| ODI |
0 |
5 |
10 |
668 |
5523 |
877 |
0 |
0 |
| CDI |
0 |
0 |
0 |
7 |
670 |
2457 |
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 |
12773 |
4834 |
9 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
1228 |
171 |
91 |
4 |
0 |
0 |
0 |
| VODI |
0 |
293 |
325 |
1677 |
456 |
6 |
0 |
0 |
| ODI |
0 |
5 |
10 |
666 |
5412 |
889 |
0 |
0 |
| CDI |
0 |
0 |
0 |
7 |
782 |
2442 |
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 |
12721 |
4696 |
2 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
1428 |
166 |
96 |
7 |
0 |
0 |
0 |
| VODI |
0 |
323 |
326 |
1497 |
464 |
14 |
0 |
0 |
| ODI |
0 |
8 |
18 |
531 |
4703 |
1126 |
20 |
0 |
| CDI |
0 |
0 |
0 |
1 |
706 |
3203 |
26 |
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 |
12721 |
4829 |
4 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
1273 |
169 |
129 |
16 |
1 |
0 |
0 |
| VODI |
0 |
348 |
321 |
1471 |
440 |
19 |
0 |
0 |
| ODI |
0 |
5 |
18 |
521 |
4727 |
1333 |
46 |
0 |
| CDI |
0 |
0 |
0 |
2 |
697 |
2990 |
0 |
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 |
12693 |
4948 |
17 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
1138 |
277 |
134 |
3 |
0 |
0 |
0 |
| VODI |
0 |
132 |
236 |
1438 |
265 |
2 |
0 |
0 |
| ODI |
0 |
0 |
1 |
331 |
3241 |
289 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
1255 |
5121 |
2 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
457 |
100 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12693 |
4499 |
11 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
1341 |
196 |
165 |
24 |
0 |
0 |
0 |
| VODI |
0 |
377 |
310 |
1393 |
540 |
33 |
0 |
0 |
| ODI |
0 |
1 |
14 |
344 |
3253 |
1791 |
39 |
0 |
| CDI |
0 |
0 |
0 |
0 |
947 |
4045 |
63 |
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 |
12648 |
4840 |
5 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
1197 |
234 |
153 |
5 |
0 |
0 |
0 |
| VODI |
0 |
133 |
176 |
1216 |
404 |
2 |
0 |
0 |
| ODI |
0 |
7 |
13 |
284 |
2553 |
492 |
1 |
0 |
| CDI |
0 |
0 |
0 |
34 |
1834 |
5342 |
94 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
10 |
355 |
50 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12648 |
4348 |
5 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
1367 |
152 |
171 |
7 |
0 |
0 |
0 |
| VODI |
0 |
431 |
235 |
1219 |
714 |
52 |
0 |
0 |
| ODI |
0 |
31 |
36 |
285 |
2828 |
1199 |
8 |
0 |
| CDI |
0 |
0 |
0 |
12 |
1257 |
4940 |
137 |
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 |
13127 |
4487 |
20 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
1092 |
175 |
185 |
69 |
14 |
0 |
0 |
| VODI |
0 |
194 |
177 |
735 |
415 |
236 |
0 |
0 |
| ODI |
0 |
14 |
25 |
280 |
1824 |
660 |
10 |
0 |
| CDI |
0 |
0 |
0 |
38 |
642 |
6088 |
363 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
6 |
854 |
349 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13127 |
3966 |
12 |
6 |
0 |
0 |
0 |
0 |
| OW |
0 |
1158 |
147 |
188 |
75 |
8 |
0 |
0 |
| VODI |
0 |
591 |
190 |
693 |
741 |
255 |
0 |
0 |
| ODI |
0 |
55 |
41 |
315 |
1367 |
895 |
0 |
0 |
| CDI |
0 |
17 |
7 |
39 |
773 |
6682 |
722 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
12 |
0 |
0 |
|
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