Validation of sea ice concentration - Asian sector
Bulletin date: 2023-10-19
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-10-13:
| 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 |
8173 |
5507 |
193 |
272 |
8 |
0 |
0 |
0 |
| OW |
209 |
1043 |
202 |
587 |
169 |
0 |
0 |
0 |
| VODI |
0 |
90 |
32 |
400 |
401 |
24 |
0 |
0 |
| ODI |
0 |
0 |
0 |
77 |
419 |
127 |
0 |
0 |
| CDI |
0 |
0 |
0 |
14 |
242 |
463 |
21 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
104 |
1505 |
5041 |
6756 |
|
...date precedes bulletin
|
Date: 2023-10-15:
| 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 |
4993 |
7456 |
264 |
176 |
4 |
0 |
0 |
0 |
| OW |
111 |
901 |
299 |
842 |
185 |
6 |
0 |
0 |
| VODI |
33 |
24 |
68 |
678 |
710 |
55 |
0 |
0 |
| ODI |
0 |
0 |
0 |
79 |
443 |
185 |
0 |
0 |
| CDI |
0 |
0 |
0 |
23 |
243 |
385 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
164 |
1579 |
4744 |
7429 |
|
...date precedes bulletin
|
Date: 2023-10-17:
| 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 |
3530 |
6417 |
577 |
616 |
10 |
0 |
0 |
0 |
| OW |
3 |
1319 |
296 |
907 |
173 |
5 |
0 |
0 |
| VODI |
0 |
47 |
10 |
452 |
754 |
25 |
0 |
0 |
| ODI |
0 |
0 |
0 |
27 |
752 |
306 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
202 |
792 |
226 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
53 |
1010 |
4775 |
8798 |
|
...date precedes bulletin
|
Date: 2023-10-19:
| 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 |
3061 |
3728 |
264 |
611 |
224 |
0 |
0 |
0 |
| OW |
51 |
1215 |
383 |
1458 |
730 |
69 |
0 |
0 |
| VODI |
3 |
237 |
137 |
837 |
1000 |
219 |
0 |
0 |
| ODI |
0 |
3 |
0 |
23 |
467 |
522 |
0 |
0 |
| CDI |
0 |
0 |
0 |
4 |
172 |
759 |
40 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
89 |
1282 |
6240 |
8254 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
3054 |
3951 |
329 |
831 |
351 |
37 |
0 |
0 |
| OW |
60 |
729 |
300 |
1136 |
536 |
67 |
0 |
0 |
| VODI |
1 |
501 |
153 |
924 |
1006 |
187 |
0 |
0 |
| ODI |
0 |
2 |
2 |
40 |
512 |
536 |
0 |
0 |
| CDI |
0 |
0 |
0 |
2 |
188 |
722 |
26 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
89 |
1302 |
6254 |
8254 |
|
Date: 2023-10-21:
| 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 |
2203 |
3803 |
161 |
163 |
142 |
22 |
0 |
0 |
| OW |
34 |
1049 |
288 |
1204 |
551 |
322 |
0 |
0 |
| VODI |
0 |
458 |
167 |
1025 |
1165 |
840 |
0 |
0 |
| ODI |
0 |
11 |
18 |
200 |
583 |
645 |
6 |
0 |
| CDI |
0 |
0 |
0 |
39 |
272 |
713 |
43 |
0 |
| VCDI |
0 |
0 |
0 |
21 |
247 |
1839 |
6557 |
7291 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2234 |
4068 |
245 |
603 |
172 |
34 |
0 |
0 |
| OW |
3 |
760 |
229 |
827 |
506 |
338 |
0 |
0 |
| VODI |
0 |
475 |
131 |
857 |
931 |
719 |
0 |
0 |
| ODI |
0 |
18 |
29 |
305 |
844 |
680 |
11 |
0 |
| CDI |
0 |
0 |
0 |
38 |
252 |
732 |
43 |
0 |
| VCDI |
0 |
0 |
0 |
22 |
255 |
1878 |
6552 |
7291 |
|
Date: 2023-10-23:
| 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 |
2656 |
3001 |
173 |
379 |
297 |
43 |
0 |
0 |
| OW |
110 |
546 |
108 |
563 |
589 |
228 |
0 |
0 |
| VODI |
0 |
292 |
126 |
616 |
1276 |
1007 |
0 |
0 |
| ODI |
0 |
71 |
44 |
350 |
938 |
791 |
0 |
0 |
| CDI |
0 |
1 |
0 |
78 |
497 |
657 |
3 |
0 |
| VCDI |
0 |
0 |
0 |
10 |
374 |
2790 |
5989 |
7479 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2716 |
3041 |
182 |
507 |
273 |
74 |
0 |
0 |
| OW |
50 |
571 |
107 |
575 |
630 |
252 |
0 |
0 |
| VODI |
0 |
274 |
137 |
516 |
1291 |
1031 |
0 |
0 |
| ODI |
0 |
25 |
25 |
329 |
1073 |
863 |
0 |
0 |
| CDI |
0 |
0 |
0 |
57 |
406 |
763 |
10 |
0 |
| VCDI |
0 |
0 |
0 |
12 |
298 |
2533 |
5982 |
7479 |
|
Date: 2023-10-25:
| 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 |
2026 |
2608 |
178 |
322 |
239 |
43 |
0 |
0 |
| OW |
23 |
478 |
116 |
361 |
473 |
294 |
0 |
0 |
| VODI |
0 |
44 |
89 |
445 |
852 |
1062 |
113 |
0 |
| ODI |
0 |
0 |
0 |
120 |
1163 |
1774 |
74 |
0 |
| CDI |
0 |
0 |
0 |
0 |
443 |
1153 |
128 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
199 |
2518 |
7620 |
7124 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2032 |
2544 |
191 |
370 |
236 |
74 |
18 |
0 |
| OW |
17 |
547 |
126 |
301 |
611 |
516 |
99 |
0 |
| VODI |
0 |
39 |
64 |
446 |
1014 |
1394 |
88 |
0 |
| ODI |
0 |
0 |
2 |
122 |
1025 |
1854 |
174 |
0 |
| CDI |
0 |
0 |
0 |
9 |
343 |
1070 |
143 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
140 |
1936 |
7413 |
7124 |
|
Date: 2023-10-27:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
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