Validation of sea ice concentration - Full domain
Bulletin date: 2023-10-26
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-10-20:
| 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 |
105988 |
17477 |
1046 |
1670 |
776 |
45 |
0 |
0 |
| OW |
71 |
1175 |
392 |
1587 |
1644 |
294 |
0 |
0 |
| VODI |
2 |
458 |
253 |
1269 |
2034 |
891 |
1 |
0 |
| ODI |
0 |
9 |
13 |
255 |
864 |
1119 |
39 |
0 |
| CDI |
0 |
0 |
1 |
107 |
573 |
1633 |
162 |
0 |
| VCDI |
0 |
0 |
0 |
60 |
601 |
6553 |
18999 |
18987 |
|
...date precedes bulletin
|
Date: 2023-10-22:
| 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 |
107638 |
14784 |
678 |
1080 |
461 |
221 |
16 |
0 |
| OW |
76 |
1263 |
439 |
1552 |
1215 |
199 |
31 |
0 |
| VODI |
0 |
500 |
270 |
1423 |
2331 |
799 |
54 |
0 |
| ODI |
0 |
75 |
73 |
453 |
1415 |
876 |
47 |
0 |
| CDI |
0 |
7 |
19 |
200 |
745 |
1458 |
89 |
0 |
| VCDI |
0 |
0 |
0 |
98 |
866 |
7404 |
19945 |
18248 |
|
...date precedes bulletin
|
Date: 2023-10-24:
| 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 |
107981 |
14921 |
907 |
1284 |
228 |
41 |
0 |
0 |
| OW |
4 |
473 |
312 |
1182 |
454 |
46 |
0 |
0 |
| VODI |
0 |
48 |
59 |
1079 |
1840 |
173 |
0 |
0 |
| ODI |
0 |
4 |
2 |
227 |
2509 |
1473 |
4 |
0 |
| CDI |
0 |
0 |
0 |
97 |
1164 |
4094 |
61 |
1 |
| VCDI |
0 |
0 |
0 |
6 |
339 |
7024 |
21233 |
17778 |
|
...date precedes bulletin
|
Date: 2023-10-26:
| 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 |
106716 |
13448 |
937 |
1514 |
258 |
78 |
8 |
0 |
| OW |
7 |
348 |
266 |
1607 |
777 |
116 |
10 |
0 |
| VODI |
0 |
28 |
64 |
851 |
1417 |
701 |
74 |
0 |
| ODI |
0 |
0 |
3 |
199 |
1431 |
1758 |
206 |
0 |
| CDI |
0 |
0 |
0 |
81 |
933 |
4350 |
682 |
0 |
| VCDI |
0 |
0 |
0 |
10 |
661 |
7454 |
18052 |
22003 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
106697 |
13289 |
919 |
1642 |
338 |
75 |
7 |
0 |
| OW |
26 |
502 |
274 |
1439 |
698 |
187 |
10 |
0 |
| VODI |
0 |
33 |
73 |
887 |
1425 |
559 |
47 |
0 |
| ODI |
0 |
0 |
4 |
197 |
1351 |
1715 |
203 |
0 |
| CDI |
0 |
0 |
0 |
90 |
973 |
4130 |
478 |
0 |
| VCDI |
0 |
0 |
0 |
7 |
692 |
7791 |
18287 |
22003 |
|
Date: 2023-10-28:
| 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 |
104705 |
13133 |
889 |
1739 |
473 |
59 |
20 |
0 |
| OW |
9 |
231 |
211 |
1419 |
1070 |
108 |
20 |
0 |
| VODI |
0 |
7 |
40 |
624 |
1691 |
1080 |
54 |
0 |
| ODI |
0 |
0 |
2 |
177 |
673 |
1784 |
269 |
0 |
| CDI |
0 |
0 |
0 |
69 |
489 |
3793 |
1183 |
17 |
| VCDI |
0 |
0 |
0 |
9 |
237 |
7506 |
18011 |
25247 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
104694 |
12940 |
860 |
1900 |
530 |
67 |
21 |
0 |
| OW |
20 |
411 |
227 |
1248 |
913 |
173 |
19 |
0 |
| VODI |
0 |
20 |
52 |
639 |
1838 |
950 |
47 |
0 |
| ODI |
0 |
0 |
3 |
168 |
670 |
1703 |
216 |
0 |
| CDI |
0 |
0 |
0 |
72 |
453 |
3410 |
1070 |
4 |
| VCDI |
0 |
0 |
0 |
10 |
229 |
8027 |
18184 |
25260 |
|
Date: 2023-10-30:
| 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 |
101430 |
14840 |
861 |
1452 |
521 |
71 |
4 |
0 |
| OW |
13 |
63 |
150 |
1013 |
371 |
42 |
8 |
0 |
| VODI |
0 |
0 |
6 |
952 |
1233 |
68 |
23 |
0 |
| ODI |
0 |
0 |
0 |
154 |
1993 |
736 |
21 |
0 |
| CDI |
0 |
0 |
0 |
23 |
618 |
6374 |
440 |
35 |
| VCDI |
0 |
0 |
0 |
8 |
132 |
3883 |
20115 |
29395 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
101433 |
14443 |
823 |
2061 |
1038 |
132 |
34 |
0 |
| OW |
10 |
393 |
129 |
814 |
1080 |
158 |
21 |
0 |
| VODI |
0 |
67 |
64 |
454 |
1425 |
1532 |
82 |
0 |
| ODI |
0 |
0 |
1 |
186 |
499 |
1748 |
295 |
8 |
| CDI |
0 |
0 |
0 |
56 |
522 |
2222 |
1091 |
331 |
| VCDI |
0 |
0 |
0 |
31 |
304 |
5382 |
19088 |
29091 |
|
Date: 2023-11-01:
| 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 |
101574 |
13225 |
912 |
1386 |
667 |
245 |
30 |
0 |
| OW |
17 |
174 |
163 |
851 |
483 |
164 |
19 |
0 |
| VODI |
0 |
29 |
51 |
556 |
1033 |
527 |
33 |
0 |
| ODI |
0 |
5 |
4 |
228 |
949 |
969 |
90 |
0 |
| CDI |
0 |
0 |
0 |
62 |
960 |
2518 |
1009 |
17 |
| VCDI |
0 |
0 |
0 |
18 |
217 |
5111 |
17672 |
35080 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
101573 |
12605 |
750 |
1514 |
1123 |
424 |
76 |
0 |
| OW |
18 |
747 |
286 |
663 |
627 |
424 |
50 |
0 |
| VODI |
0 |
78 |
85 |
548 |
1212 |
1335 |
374 |
0 |
| ODI |
0 |
3 |
9 |
198 |
584 |
1519 |
588 |
0 |
| CDI |
0 |
0 |
0 |
131 |
459 |
1380 |
1344 |
134 |
| VCDI |
0 |
0 |
0 |
47 |
304 |
4452 |
16421 |
34963 |
|
Date: 2023-11-03:
| 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 |
100970 |
12636 |
770 |
1247 |
772 |
228 |
20 |
0 |
| OW |
38 |
341 |
167 |
832 |
520 |
306 |
21 |
0 |
| VODI |
0 |
84 |
92 |
586 |
786 |
332 |
32 |
0 |
| ODI |
0 |
7 |
29 |
280 |
948 |
634 |
71 |
0 |
| CDI |
0 |
0 |
0 |
104 |
1068 |
1359 |
459 |
16 |
| VCDI |
0 |
0 |
0 |
0 |
979 |
5889 |
19532 |
34893 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
100930 |
12175 |
715 |
1286 |
1151 |
540 |
54 |
0 |
| OW |
65 |
607 |
206 |
784 |
453 |
299 |
56 |
0 |
| VODI |
13 |
260 |
95 |
664 |
1087 |
954 |
143 |
0 |
| ODI |
0 |
26 |
42 |
224 |
878 |
1266 |
549 |
18 |
| CDI |
0 |
0 |
0 |
87 |
695 |
1242 |
1169 |
51 |
| VCDI |
0 |
0 |
0 |
4 |
809 |
4447 |
18164 |
34840 |
|
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