Validation of sea ice concentration - Full domain
Bulletin date: 2023-12-14
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-12-08:
| 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 |
80590 |
16135 |
569 |
855 |
492 |
373 |
180 |
9 |
| OW |
154 |
1487 |
284 |
768 |
375 |
107 |
20 |
11 |
| VODI |
17 |
741 |
202 |
519 |
542 |
410 |
20 |
4 |
| ODI |
3 |
156 |
98 |
351 |
415 |
640 |
42 |
1 |
| CDI |
0 |
38 |
26 |
195 |
488 |
1523 |
277 |
2 |
| VCDI |
0 |
51 |
21 |
64 |
347 |
3646 |
29284 |
44516 |
|
...date precedes bulletin
|
Date: 2023-12-10:
| 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 |
79652 |
15143 |
568 |
845 |
564 |
377 |
213 |
5 |
| OW |
63 |
1507 |
287 |
829 |
798 |
123 |
14 |
12 |
| VODI |
0 |
832 |
214 |
538 |
879 |
423 |
27 |
6 |
| ODI |
0 |
203 |
117 |
278 |
592 |
589 |
50 |
2 |
| CDI |
0 |
50 |
51 |
258 |
502 |
1336 |
284 |
6 |
| VCDI |
0 |
82 |
33 |
173 |
513 |
3745 |
27785 |
46480 |
|
...date precedes bulletin
|
Date: 2023-12-12:
| 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 |
78866 |
15461 |
609 |
956 |
392 |
332 |
164 |
0 |
| OW |
113 |
1033 |
336 |
694 |
382 |
68 |
10 |
0 |
| VODI |
7 |
590 |
212 |
753 |
792 |
204 |
35 |
0 |
| ODI |
0 |
168 |
84 |
363 |
906 |
608 |
45 |
0 |
| CDI |
0 |
77 |
59 |
237 |
844 |
1693 |
313 |
7 |
| VCDI |
0 |
83 |
47 |
201 |
601 |
4808 |
26859 |
47036 |
|
...date precedes bulletin
|
Date: 2023-12-14:
| 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 |
77373 |
15535 |
526 |
794 |
499 |
257 |
157 |
0 |
| OW |
55 |
1040 |
272 |
656 |
533 |
198 |
10 |
0 |
| VODI |
0 |
620 |
232 |
612 |
793 |
338 |
38 |
0 |
| ODI |
0 |
208 |
124 |
479 |
890 |
495 |
40 |
0 |
| CDI |
0 |
85 |
46 |
320 |
895 |
1070 |
142 |
2 |
| VCDI |
0 |
114 |
51 |
212 |
943 |
6948 |
25783 |
47663 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Date: 2023-12-16:
| 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 |
75127 |
16521 |
1079 |
573 |
544 |
242 |
252 |
0 |
| OW |
59 |
1081 |
262 |
590 |
619 |
238 |
29 |
0 |
| VODI |
0 |
684 |
211 |
519 |
812 |
520 |
84 |
0 |
| ODI |
0 |
255 |
103 |
337 |
642 |
508 |
121 |
0 |
| CDI |
0 |
131 |
69 |
300 |
874 |
951 |
329 |
6 |
| VCDI |
0 |
211 |
77 |
272 |
1279 |
7268 |
24626 |
48643 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Date: 2023-12-18:
| 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 |
78086 |
13679 |
338 |
401 |
138 |
221 |
282 |
0 |
| OW |
62 |
954 |
331 |
605 |
161 |
93 |
14 |
0 |
| VODI |
1 |
408 |
280 |
986 |
591 |
269 |
20 |
0 |
| ODI |
0 |
89 |
83 |
402 |
1059 |
1110 |
46 |
0 |
| CDI |
0 |
67 |
53 |
217 |
670 |
2544 |
366 |
1 |
| VCDI |
0 |
31 |
29 |
129 |
637 |
7238 |
21744 |
52613 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Date: 2023-12-20:
| 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 |
77284 |
12939 |
325 |
449 |
254 |
236 |
211 |
0 |
| OW |
62 |
871 |
215 |
477 |
247 |
83 |
14 |
0 |
| VODI |
0 |
489 |
216 |
775 |
719 |
235 |
9 |
0 |
| ODI |
0 |
120 |
80 |
376 |
952 |
645 |
18 |
0 |
| CDI |
0 |
68 |
45 |
175 |
753 |
1898 |
523 |
2 |
| VCDI |
0 |
37 |
50 |
248 |
918 |
7700 |
25984 |
50346 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
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 |
76074 |
13006 |
396 |
484 |
224 |
218 |
260 |
0 |
| OW |
65 |
884 |
173 |
377 |
303 |
84 |
23 |
0 |
| VODI |
0 |
516 |
155 |
498 |
613 |
197 |
37 |
0 |
| ODI |
0 |
145 |
68 |
418 |
1065 |
397 |
47 |
0 |
| CDI |
0 |
89 |
45 |
186 |
970 |
1386 |
251 |
62 |
| VCDI |
0 |
60 |
61 |
329 |
898 |
8054 |
28363 |
49567 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
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