Validation of sea ice concentration - Full domain
Bulletin date: 2023-12-28
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-12-22:
| 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 |
66232 |
11806 |
211 |
201 |
125 |
88 |
0 |
0 |
| OW |
804 |
1357 |
252 |
372 |
256 |
168 |
6 |
0 |
| VODI |
1937 |
580 |
263 |
663 |
599 |
230 |
69 |
0 |
| ODI |
1725 |
123 |
101 |
548 |
1211 |
516 |
121 |
0 |
| CDI |
0 |
29 |
54 |
358 |
1228 |
2625 |
1336 |
1 |
| VCDI |
0 |
8 |
17 |
150 |
654 |
6709 |
27449 |
49628 |
|
...date precedes bulletin
|
Date: 2023-12-24:
| 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 |
66645 |
10878 |
154 |
131 |
123 |
37 |
0 |
0 |
| OW |
831 |
1214 |
251 |
360 |
220 |
139 |
0 |
0 |
| VODI |
1897 |
732 |
228 |
590 |
610 |
257 |
23 |
0 |
| ODI |
1771 |
249 |
117 |
417 |
1091 |
467 |
90 |
0 |
| CDI |
0 |
93 |
107 |
397 |
1185 |
1988 |
1292 |
10 |
| VCDI |
0 |
18 |
10 |
103 |
495 |
7106 |
28602 |
49882 |
|
...date precedes bulletin
|
Date: 2023-12-26:
| 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 |
66288 |
11075 |
122 |
105 |
23 |
0 |
0 |
0 |
| OW |
859 |
1701 |
169 |
227 |
108 |
82 |
7 |
0 |
| VODI |
1873 |
681 |
341 |
635 |
427 |
147 |
22 |
0 |
| ODI |
1809 |
74 |
118 |
499 |
818 |
364 |
72 |
0 |
| CDI |
0 |
34 |
47 |
302 |
1137 |
2187 |
649 |
0 |
| VCDI |
0 |
8 |
15 |
86 |
812 |
7330 |
28533 |
51024 |
|
...date precedes bulletin
|
Date: 2023-12-28:
| 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 |
66122 |
11074 |
78 |
77 |
8 |
1 |
0 |
0 |
| OW |
916 |
1581 |
146 |
176 |
95 |
68 |
2 |
0 |
| VODI |
1849 |
844 |
279 |
443 |
348 |
186 |
27 |
0 |
| ODI |
1836 |
257 |
98 |
380 |
812 |
506 |
50 |
0 |
| CDI |
0 |
133 |
64 |
343 |
858 |
1907 |
637 |
1 |
| VCDI |
0 |
92 |
72 |
228 |
930 |
7261 |
29025 |
51000 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
66123 |
11175 |
86 |
78 |
9 |
1 |
0 |
0 |
| OW |
916 |
1492 |
144 |
159 |
87 |
65 |
0 |
0 |
| VODI |
1846 |
832 |
253 |
441 |
344 |
171 |
19 |
0 |
| ODI |
1838 |
270 |
114 |
394 |
792 |
470 |
48 |
0 |
| CDI |
0 |
128 |
66 |
327 |
844 |
1910 |
652 |
1 |
| VCDI |
0 |
84 |
74 |
248 |
975 |
7312 |
29022 |
51000 |
|
Date: 2023-12-30:
| 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 |
65561 |
11231 |
131 |
110 |
30 |
2 |
0 |
0 |
| OW |
937 |
1426 |
175 |
219 |
108 |
42 |
4 |
0 |
| VODI |
1828 |
726 |
228 |
466 |
296 |
215 |
45 |
0 |
| ODI |
1859 |
358 |
122 |
402 |
528 |
443 |
110 |
0 |
| CDI |
0 |
266 |
94 |
263 |
762 |
1584 |
973 |
2 |
| VCDI |
0 |
150 |
100 |
367 |
999 |
6779 |
26977 |
53892 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
65556 |
11326 |
132 |
128 |
32 |
1 |
0 |
0 |
| OW |
943 |
1328 |
174 |
198 |
92 |
29 |
4 |
0 |
| VODI |
1825 |
739 |
209 |
442 |
316 |
177 |
38 |
0 |
| ODI |
1861 |
334 |
142 |
413 |
496 |
421 |
73 |
0 |
| CDI |
0 |
294 |
94 |
271 |
783 |
1565 |
1008 |
1 |
| VCDI |
0 |
136 |
99 |
375 |
1004 |
6872 |
26986 |
53893 |
|
Date: 2024-01-01:
| 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 |
64639 |
12047 |
142 |
123 |
13 |
0 |
0 |
0 |
| OW |
934 |
1817 |
161 |
137 |
90 |
8 |
0 |
0 |
| VODI |
1819 |
522 |
294 |
562 |
251 |
57 |
12 |
0 |
| ODI |
1873 |
149 |
88 |
404 |
528 |
247 |
20 |
0 |
| CDI |
0 |
198 |
88 |
304 |
1040 |
2261 |
415 |
0 |
| VCDI |
0 |
16 |
28 |
151 |
761 |
6245 |
31513 |
50853 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
64631 |
11520 |
141 |
133 |
36 |
0 |
0 |
0 |
| OW |
931 |
1328 |
112 |
129 |
123 |
10 |
1 |
0 |
| VODI |
1807 |
928 |
207 |
330 |
267 |
77 |
11 |
0 |
| ODI |
1896 |
420 |
119 |
319 |
396 |
310 |
49 |
0 |
| CDI |
0 |
346 |
107 |
446 |
861 |
1767 |
805 |
0 |
| VCDI |
0 |
207 |
115 |
324 |
1000 |
6654 |
31094 |
50853 |
|
Date: 2024-01-03:
| 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 |
64144 |
12174 |
119 |
85 |
6 |
0 |
0 |
0 |
| OW |
958 |
1316 |
204 |
298 |
80 |
7 |
0 |
0 |
| VODI |
1857 |
537 |
238 |
421 |
245 |
90 |
13 |
0 |
| ODI |
1896 |
227 |
81 |
347 |
482 |
168 |
20 |
0 |
| CDI |
0 |
90 |
82 |
400 |
1145 |
1488 |
710 |
1 |
| VCDI |
0 |
76 |
44 |
240 |
1016 |
7734 |
35861 |
45910 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
64229 |
11257 |
108 |
61 |
6 |
0 |
0 |
0 |
| OW |
886 |
1322 |
127 |
226 |
65 |
8 |
0 |
0 |
| VODI |
1815 |
902 |
177 |
305 |
214 |
86 |
6 |
0 |
| ODI |
1925 |
450 |
139 |
355 |
338 |
264 |
61 |
0 |
| CDI |
0 |
353 |
135 |
475 |
1059 |
1185 |
980 |
4 |
| VCDI |
0 |
136 |
82 |
369 |
1292 |
7944 |
35557 |
45907 |
|
Date: 2024-01-05:
| 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 |
62338 |
12677 |
370 |
138 |
13 |
1 |
0 |
0 |
| OW |
891 |
1167 |
207 |
265 |
123 |
18 |
0 |
0 |
| VODI |
1892 |
532 |
167 |
330 |
373 |
114 |
16 |
0 |
| ODI |
1978 |
238 |
87 |
233 |
457 |
222 |
15 |
0 |
| CDI |
0 |
204 |
67 |
299 |
801 |
1537 |
913 |
10 |
| VCDI |
0 |
105 |
54 |
335 |
1019 |
7015 |
33275 |
50314 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
62422 |
11593 |
339 |
136 |
25 |
0 |
0 |
0 |
| OW |
965 |
1520 |
141 |
160 |
110 |
14 |
0 |
0 |
| VODI |
1977 |
781 |
175 |
294 |
225 |
123 |
9 |
0 |
| ODI |
1735 |
402 |
98 |
263 |
498 |
256 |
30 |
0 |
| CDI |
0 |
445 |
112 |
323 |
843 |
1653 |
1173 |
24 |
| VCDI |
0 |
182 |
87 |
424 |
1085 |
6861 |
33007 |
50300 |
|
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