Validation of sea ice concentration - Asian sector
Bulletin date: 2023-09-07
Data source: OSI SAF N.H. AMSR 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 |
9158 |
5462 |
699 |
44 |
0 |
0 |
0 |
0 |
| OW |
0 |
1836 |
347 |
145 |
0 |
0 |
0 |
0 |
| VODI |
0 |
382 |
380 |
1650 |
605 |
6 |
0 |
0 |
| ODI |
0 |
6 |
19 |
501 |
4384 |
1088 |
0 |
0 |
| CDI |
0 |
0 |
0 |
6 |
1483 |
3686 |
176 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
15 |
4 |
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 |
9036 |
6206 |
5 |
3 |
0 |
0 |
0 |
0 |
| OW |
6 |
2142 |
190 |
78 |
0 |
0 |
0 |
0 |
| VODI |
0 |
394 |
354 |
1656 |
672 |
5 |
0 |
0 |
| ODI |
0 |
11 |
29 |
999 |
4530 |
767 |
0 |
0 |
| CDI |
0 |
0 |
0 |
9 |
1965 |
3014 |
10 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
1 |
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 |
9595 |
6827 |
30 |
8 |
0 |
0 |
0 |
0 |
| OW |
0 |
1357 |
308 |
94 |
0 |
0 |
0 |
0 |
| VODI |
0 |
93 |
248 |
1658 |
487 |
3 |
0 |
0 |
| ODI |
0 |
0 |
3 |
699 |
5312 |
554 |
0 |
0 |
| CDI |
0 |
0 |
0 |
1 |
914 |
3620 |
175 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
72 |
24 |
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 |
9855 |
6469 |
91 |
137 |
4 |
0 |
0 |
0 |
| OW |
0 |
1320 |
209 |
112 |
0 |
0 |
0 |
0 |
| VODI |
0 |
203 |
240 |
1635 |
540 |
0 |
0 |
0 |
| ODI |
0 |
23 |
36 |
558 |
4138 |
1795 |
8 |
0 |
| CDI |
0 |
0 |
2 |
56 |
1387 |
3000 |
148 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
106 |
10 |
0 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9854 |
5866 |
71 |
83 |
3 |
0 |
0 |
0 |
| OW |
1 |
1689 |
189 |
158 |
15 |
0 |
0 |
0 |
| VODI |
0 |
356 |
253 |
1589 |
635 |
4 |
0 |
0 |
| ODI |
0 |
98 |
51 |
588 |
3950 |
1677 |
19 |
0 |
| CDI |
0 |
6 |
14 |
80 |
1557 |
3124 |
137 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
15 |
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 |
12303 |
4287 |
3 |
0 |
0 |
0 |
0 |
0 |
| OW |
110 |
1235 |
164 |
92 |
1 |
0 |
0 |
0 |
| VODI |
0 |
345 |
268 |
1538 |
613 |
1 |
0 |
0 |
| ODI |
0 |
36 |
49 |
764 |
4730 |
1108 |
0 |
0 |
| CDI |
0 |
2 |
1 |
50 |
1180 |
3162 |
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 |
12066 |
3868 |
6 |
0 |
0 |
0 |
0 |
0 |
| OW |
347 |
1426 |
138 |
107 |
11 |
0 |
0 |
0 |
| VODI |
0 |
480 |
262 |
1485 |
656 |
9 |
0 |
0 |
| ODI |
0 |
118 |
63 |
769 |
4297 |
1316 |
0 |
0 |
| CDI |
0 |
13 |
16 |
83 |
1560 |
2946 |
40 |
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 |
12705 |
4571 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
1414 |
186 |
77 |
1 |
0 |
0 |
0 |
| VODI |
0 |
172 |
279 |
1836 |
414 |
1 |
0 |
0 |
| ODI |
0 |
1 |
5 |
660 |
5828 |
360 |
0 |
0 |
| CDI |
0 |
0 |
0 |
6 |
578 |
2984 |
4 |
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 |
12371 |
3716 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
334 |
1558 |
69 |
71 |
5 |
0 |
0 |
0 |
| VODI |
0 |
676 |
298 |
1414 |
560 |
5 |
0 |
0 |
| ODI |
0 |
189 |
76 |
991 |
4353 |
947 |
0 |
0 |
| CDI |
0 |
19 |
27 |
103 |
1903 |
2393 |
4 |
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 |
12690 |
4677 |
8 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
1423 |
154 |
72 |
2 |
0 |
0 |
0 |
| VODI |
0 |
305 |
318 |
1787 |
376 |
3 |
0 |
0 |
| ODI |
0 |
0 |
18 |
714 |
5684 |
563 |
0 |
0 |
| CDI |
0 |
0 |
0 |
10 |
601 |
2677 |
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 |
12401 |
3762 |
8 |
0 |
0 |
0 |
0 |
0 |
| OW |
289 |
1585 |
76 |
88 |
12 |
0 |
0 |
0 |
| VODI |
0 |
873 |
287 |
1435 |
405 |
15 |
0 |
0 |
| ODI |
0 |
177 |
115 |
962 |
4518 |
1018 |
0 |
0 |
| CDI |
0 |
8 |
12 |
98 |
1728 |
2210 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
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 |
12699 |
4782 |
1 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
1367 |
184 |
106 |
4 |
0 |
0 |
0 |
| VODI |
0 |
286 |
295 |
1585 |
507 |
12 |
0 |
0 |
| ODI |
0 |
8 |
12 |
529 |
5286 |
940 |
5 |
0 |
| CDI |
0 |
0 |
0 |
1 |
698 |
2767 |
8 |
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 |
12470 |
3762 |
16 |
1 |
0 |
0 |
0 |
0 |
| OW |
229 |
1598 |
83 |
153 |
5 |
0 |
0 |
0 |
| VODI |
0 |
885 |
286 |
1266 |
548 |
0 |
0 |
0 |
| ODI |
0 |
189 |
101 |
710 |
4151 |
1542 |
0 |
0 |
| CDI |
0 |
9 |
6 |
91 |
1791 |
2177 |
13 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
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