Validation of sea ice concentration - Full domain
Bulletin date: 2023-12-28
Data source: OSI SAF N.H. multi-product 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 |
74911 |
14997 |
463 |
578 |
191 |
20 |
0 |
0 |
| OW |
27 |
1148 |
431 |
1094 |
417 |
54 |
0 |
0 |
| VODI |
3 |
475 |
172 |
1293 |
990 |
161 |
15 |
0 |
| ODI |
1 |
70 |
61 |
691 |
1735 |
520 |
71 |
0 |
| CDI |
3 |
9 |
6 |
415 |
2007 |
2826 |
1019 |
25 |
| VCDI |
6 |
0 |
0 |
87 |
878 |
8123 |
19818 |
58932 |
|
...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 |
74368 |
14438 |
349 |
364 |
119 |
15 |
0 |
0 |
| OW |
55 |
1202 |
412 |
1076 |
334 |
47 |
0 |
0 |
| VODI |
3 |
629 |
212 |
1273 |
1134 |
196 |
0 |
0 |
| ODI |
0 |
201 |
81 |
621 |
1618 |
490 |
33 |
0 |
| CDI |
1 |
46 |
53 |
457 |
1948 |
2247 |
951 |
6 |
| VCDI |
9 |
0 |
0 |
83 |
829 |
8043 |
23148 |
57652 |
|
...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 |
74154 |
14208 |
243 |
236 |
23 |
0 |
0 |
0 |
| OW |
114 |
1567 |
474 |
707 |
186 |
64 |
0 |
0 |
| VODI |
10 |
408 |
278 |
1693 |
838 |
105 |
7 |
0 |
| ODI |
4 |
36 |
30 |
716 |
1468 |
326 |
41 |
0 |
| CDI |
1 |
6 |
4 |
387 |
1786 |
2620 |
443 |
5 |
| VCDI |
9 |
0 |
0 |
81 |
947 |
9324 |
25794 |
55400 |
|
...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 |
73961 |
14076 |
302 |
240 |
10 |
0 |
0 |
0 |
| OW |
179 |
1586 |
334 |
555 |
166 |
31 |
0 |
0 |
| VODI |
2 |
653 |
250 |
1150 |
838 |
143 |
12 |
0 |
| ODI |
0 |
170 |
91 |
546 |
1522 |
463 |
26 |
0 |
| CDI |
0 |
73 |
54 |
410 |
1465 |
2342 |
426 |
3 |
| VCDI |
10 |
43 |
30 |
312 |
1130 |
8516 |
24964 |
57659 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
73960 |
14217 |
328 |
281 |
25 |
0 |
0 |
0 |
| OW |
180 |
1450 |
315 |
534 |
173 |
27 |
0 |
0 |
| VODI |
2 |
634 |
244 |
1090 |
836 |
140 |
3 |
0 |
| ODI |
0 |
197 |
96 |
569 |
1434 |
457 |
25 |
0 |
| CDI |
0 |
65 |
50 |
433 |
1451 |
2218 |
449 |
4 |
| VCDI |
10 |
38 |
28 |
306 |
1212 |
8653 |
24951 |
57658 |
|
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 |
73884 |
13762 |
244 |
334 |
14 |
0 |
0 |
0 |
| OW |
159 |
1613 |
274 |
485 |
207 |
13 |
0 |
0 |
| VODI |
3 |
651 |
228 |
1005 |
766 |
158 |
20 |
0 |
| ODI |
0 |
269 |
116 |
600 |
1134 |
433 |
78 |
0 |
| CDI |
0 |
174 |
101 |
371 |
1561 |
1720 |
778 |
7 |
| VCDI |
0 |
62 |
85 |
442 |
1680 |
8175 |
23057 |
60080 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
73876 |
13847 |
288 |
373 |
18 |
0 |
0 |
0 |
| OW |
168 |
1535 |
252 |
457 |
188 |
7 |
0 |
0 |
| VODI |
2 |
641 |
203 |
970 |
812 |
135 |
2 |
0 |
| ODI |
0 |
269 |
117 |
598 |
1080 |
418 |
48 |
0 |
| CDI |
0 |
181 |
114 |
389 |
1530 |
1715 |
799 |
6 |
| VCDI |
0 |
58 |
74 |
450 |
1734 |
8224 |
23084 |
60081 |
|
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 |
72874 |
14814 |
227 |
313 |
16 |
0 |
0 |
0 |
| OW |
154 |
1967 |
387 |
409 |
120 |
0 |
0 |
0 |
| VODI |
3 |
291 |
157 |
1405 |
464 |
22 |
0 |
0 |
| ODI |
0 |
75 |
46 |
571 |
1369 |
143 |
0 |
0 |
| CDI |
0 |
53 |
73 |
468 |
1645 |
2972 |
101 |
1 |
| VCDI |
0 |
4 |
5 |
156 |
1041 |
7947 |
23455 |
60995 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
72871 |
14151 |
218 |
336 |
20 |
0 |
0 |
0 |
| OW |
158 |
1522 |
212 |
393 |
155 |
0 |
0 |
0 |
| VODI |
2 |
916 |
211 |
748 |
619 |
49 |
0 |
0 |
| ODI |
0 |
337 |
84 |
667 |
863 |
346 |
24 |
0 |
| CDI |
0 |
209 |
87 |
715 |
1454 |
2056 |
604 |
1 |
| VCDI |
0 |
69 |
83 |
463 |
1544 |
8633 |
22928 |
60995 |
|
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 |
72308 |
14867 |
307 |
311 |
0 |
0 |
0 |
0 |
| OW |
272 |
1097 |
451 |
856 |
90 |
0 |
0 |
0 |
| VODI |
107 |
287 |
157 |
1097 |
603 |
38 |
0 |
0 |
| ODI |
1 |
132 |
54 |
525 |
1055 |
176 |
0 |
0 |
| CDI |
0 |
44 |
16 |
395 |
1871 |
2302 |
441 |
2 |
| VCDI |
0 |
26 |
32 |
211 |
1531 |
9669 |
29245 |
54167 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
72349 |
13767 |
262 |
208 |
1 |
0 |
0 |
0 |
| OW |
209 |
1371 |
231 |
552 |
74 |
0 |
0 |
0 |
| VODI |
119 |
751 |
265 |
825 |
374 |
55 |
0 |
0 |
| ODI |
9 |
310 |
112 |
780 |
694 |
454 |
27 |
0 |
| CDI |
2 |
209 |
98 |
706 |
2031 |
1501 |
726 |
4 |
| VCDI |
0 |
45 |
49 |
324 |
1976 |
10175 |
28933 |
54165 |
|
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 |
70916 |
14813 |
404 |
397 |
7 |
0 |
0 |
0 |
| OW |
209 |
1020 |
358 |
772 |
146 |
0 |
0 |
0 |
| VODI |
151 |
397 |
187 |
963 |
711 |
62 |
0 |
0 |
| ODI |
53 |
135 |
46 |
441 |
1019 |
248 |
0 |
0 |
| CDI |
0 |
143 |
29 |
324 |
1379 |
2232 |
668 |
28 |
| VCDI |
0 |
4 |
27 |
221 |
1540 |
8696 |
27742 |
58255 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
70922 |
13666 |
339 |
428 |
21 |
0 |
0 |
0 |
| OW |
202 |
1514 |
248 |
464 |
187 |
0 |
0 |
0 |
| VODI |
170 |
663 |
220 |
811 |
411 |
92 |
0 |
0 |
| ODI |
33 |
343 |
87 |
510 |
887 |
360 |
35 |
0 |
| CDI |
2 |
285 |
108 |
582 |
1597 |
2203 |
1080 |
44 |
| VCDI |
0 |
41 |
49 |
323 |
1699 |
8583 |
27295 |
58239 |
|
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