Validation of sea ice concentration - Full domain
Bulletin date: 2024-12-26
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-12-20:
| 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 |
68649 |
13138 |
183 |
128 |
19 |
4 |
0 |
0 |
| OW |
906 |
1436 |
371 |
672 |
217 |
42 |
0 |
0 |
| VODI |
2133 |
458 |
236 |
720 |
815 |
409 |
2 |
0 |
| ODI |
1528 |
104 |
103 |
284 |
624 |
756 |
52 |
0 |
| CDI |
0 |
35 |
48 |
191 |
707 |
2940 |
2185 |
0 |
| VCDI |
0 |
8 |
3 |
25 |
253 |
3768 |
27393 |
49265 |
|
...date precedes bulletin
|
Date: 2024-12-22:
| 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 |
68188 |
11915 |
129 |
100 |
16 |
0 |
0 |
0 |
| OW |
838 |
1752 |
367 |
579 |
309 |
50 |
8 |
0 |
| VODI |
2067 |
616 |
216 |
772 |
766 |
402 |
50 |
0 |
| ODI |
1599 |
169 |
77 |
270 |
692 |
923 |
143 |
0 |
| CDI |
0 |
118 |
68 |
205 |
590 |
2024 |
2026 |
0 |
| VCDI |
0 |
22 |
27 |
71 |
275 |
3157 |
26762 |
52452 |
|
...date precedes bulletin
|
Date: 2024-12-24:
| 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 |
68113 |
11678 |
122 |
94 |
3 |
0 |
0 |
0 |
| OW |
848 |
1996 |
404 |
424 |
86 |
1 |
0 |
0 |
| VODI |
2009 |
570 |
263 |
956 |
641 |
96 |
17 |
0 |
| ODI |
1636 |
107 |
71 |
325 |
1237 |
515 |
49 |
0 |
| CDI |
0 |
109 |
82 |
160 |
681 |
2117 |
872 |
0 |
| VCDI |
0 |
15 |
16 |
130 |
362 |
3975 |
27194 |
52836 |
|
...date precedes bulletin
|
Date: 2024-12-26:
| 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 |
68915 |
10835 |
79 |
81 |
12 |
0 |
0 |
0 |
| OW |
919 |
2168 |
283 |
234 |
101 |
18 |
0 |
0 |
| VODI |
1996 |
926 |
289 |
561 |
578 |
138 |
30 |
0 |
| ODI |
1654 |
242 |
102 |
393 |
891 |
611 |
83 |
0 |
| CDI |
0 |
216 |
103 |
317 |
903 |
1829 |
712 |
1 |
| VCDI |
0 |
175 |
65 |
200 |
910 |
3631 |
28938 |
50671 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
68986 |
11761 |
150 |
146 |
21 |
5 |
0 |
0 |
| OW |
858 |
1709 |
319 |
307 |
172 |
19 |
0 |
0 |
| VODI |
2026 |
652 |
242 |
586 |
786 |
246 |
27 |
0 |
| ODI |
1614 |
192 |
77 |
348 |
840 |
781 |
146 |
0 |
| CDI |
0 |
175 |
89 |
249 |
855 |
1953 |
1071 |
8 |
| VCDI |
0 |
73 |
44 |
150 |
721 |
3223 |
28519 |
50664 |
|
Date: 2024-12-28:
| 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 |
68230 |
11270 |
122 |
51 |
19 |
8 |
0 |
0 |
| OW |
943 |
2024 |
228 |
290 |
93 |
35 |
4 |
0 |
| VODI |
2010 |
975 |
256 |
714 |
555 |
99 |
36 |
0 |
| ODI |
1684 |
370 |
123 |
407 |
792 |
442 |
108 |
0 |
| CDI |
0 |
276 |
113 |
364 |
961 |
1680 |
1133 |
17 |
| VCDI |
0 |
236 |
63 |
176 |
592 |
3821 |
28958 |
50532 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
68332 |
12266 |
219 |
145 |
43 |
24 |
3 |
0 |
| OW |
849 |
1495 |
243 |
491 |
218 |
43 |
11 |
0 |
| VODI |
2042 |
710 |
221 |
589 |
683 |
265 |
65 |
0 |
| ODI |
1644 |
306 |
95 |
404 |
744 |
610 |
175 |
0 |
| CDI |
0 |
217 |
92 |
262 |
917 |
1557 |
1278 |
45 |
| VCDI |
0 |
157 |
35 |
111 |
407 |
3586 |
28707 |
50504 |
|
Date: 2024-12-30:
| 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 |
67444 |
12721 |
140 |
81 |
9 |
0 |
0 |
0 |
| OW |
846 |
1829 |
411 |
521 |
104 |
14 |
0 |
0 |
| VODI |
2005 |
533 |
339 |
904 |
774 |
93 |
1 |
0 |
| ODI |
1667 |
105 |
51 |
424 |
999 |
493 |
33 |
0 |
| CDI |
11 |
82 |
66 |
214 |
753 |
2295 |
622 |
7 |
| VCDI |
1 |
13 |
20 |
113 |
341 |
3208 |
25500 |
55023 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67460 |
12795 |
213 |
170 |
39 |
27 |
0 |
0 |
| OW |
827 |
1406 |
312 |
499 |
238 |
70 |
11 |
0 |
| VODI |
2000 |
691 |
258 |
653 |
720 |
235 |
38 |
0 |
| ODI |
1663 |
162 |
112 |
451 |
717 |
557 |
157 |
0 |
| CDI |
18 |
151 |
90 |
333 |
860 |
1740 |
1161 |
69 |
| VCDI |
6 |
78 |
42 |
151 |
406 |
3474 |
24789 |
54961 |
|
Date: 2025-01-01:
| 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 |
65735 |
14064 |
294 |
240 |
27 |
0 |
0 |
0 |
| OW |
849 |
1670 |
313 |
590 |
160 |
27 |
0 |
0 |
| VODI |
1980 |
554 |
220 |
563 |
517 |
266 |
20 |
0 |
| ODI |
1668 |
188 |
128 |
356 |
737 |
604 |
110 |
0 |
| CDI |
0 |
136 |
69 |
332 |
641 |
1872 |
1061 |
17 |
| VCDI |
0 |
85 |
51 |
184 |
700 |
4328 |
33928 |
45526 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
65750 |
14007 |
363 |
334 |
49 |
18 |
6 |
0 |
| OW |
832 |
1353 |
226 |
460 |
179 |
93 |
34 |
0 |
| VODI |
1975 |
695 |
217 |
569 |
544 |
252 |
122 |
0 |
| ODI |
1675 |
258 |
119 |
383 |
645 |
464 |
256 |
0 |
| CDI |
0 |
205 |
93 |
345 |
729 |
1561 |
1172 |
64 |
| VCDI |
0 |
179 |
57 |
174 |
636 |
4709 |
33529 |
45479 |
|
Date: 2025-01-03:
| 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 |
67608 |
12122 |
174 |
156 |
9 |
0 |
0 |
0 |
| OW |
843 |
1598 |
243 |
525 |
284 |
107 |
14 |
0 |
| VODI |
1967 |
651 |
256 |
505 |
369 |
185 |
118 |
0 |
| ODI |
1685 |
259 |
96 |
401 |
480 |
429 |
261 |
0 |
| CDI |
0 |
236 |
81 |
342 |
767 |
1773 |
1269 |
19 |
| VCDI |
0 |
282 |
98 |
335 |
672 |
5297 |
30196 |
48098 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67610 |
11869 |
219 |
175 |
76 |
10 |
9 |
0 |
| OW |
836 |
1390 |
180 |
423 |
231 |
119 |
36 |
0 |
| VODI |
1957 |
835 |
236 |
545 |
420 |
264 |
142 |
0 |
| ODI |
1700 |
349 |
104 |
375 |
422 |
448 |
344 |
0 |
| CDI |
0 |
342 |
113 |
430 |
795 |
1347 |
928 |
18 |
| VCDI |
0 |
363 |
96 |
316 |
637 |
5603 |
30399 |
48099 |
|
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