Validation of sea ice concentration - Full domain
Bulletin date: 2023-11-23
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-11-17:
| 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 |
97283 |
12912 |
369 |
570 |
154 |
0 |
0 |
0 |
| OW |
171 |
597 |
339 |
899 |
580 |
57 |
0 |
0 |
| VODI |
33 |
111 |
75 |
788 |
1116 |
107 |
0 |
0 |
| ODI |
0 |
20 |
25 |
237 |
1400 |
369 |
2 |
0 |
| CDI |
0 |
9 |
7 |
150 |
1312 |
2488 |
196 |
10 |
| VCDI |
0 |
0 |
0 |
145 |
426 |
5434 |
25162 |
41190 |
|
...date precedes bulletin
|
Date: 2023-11-19:
| 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 |
95925 |
12954 |
404 |
479 |
93 |
11 |
0 |
0 |
| OW |
205 |
884 |
330 |
863 |
334 |
115 |
0 |
0 |
| VODI |
51 |
201 |
127 |
1095 |
540 |
401 |
26 |
0 |
| ODI |
5 |
29 |
17 |
467 |
890 |
502 |
77 |
0 |
| CDI |
0 |
5 |
13 |
196 |
1232 |
2096 |
494 |
5 |
| VCDI |
0 |
5 |
0 |
99 |
439 |
3447 |
22813 |
46874 |
|
...date precedes bulletin
|
Date: 2023-11-21:
| 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 |
94299 |
14063 |
479 |
614 |
118 |
0 |
0 |
0 |
| OW |
102 |
1019 |
336 |
548 |
177 |
19 |
0 |
0 |
| VODI |
14 |
146 |
226 |
1155 |
651 |
129 |
0 |
0 |
| ODI |
0 |
38 |
10 |
562 |
1220 |
249 |
0 |
0 |
| CDI |
1 |
4 |
9 |
157 |
1423 |
1894 |
340 |
5 |
| VCDI |
0 |
0 |
2 |
108 |
628 |
4173 |
20662 |
49163 |
|
...date precedes bulletin
|
Date: 2023-11-23:
| 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 |
92738 |
15142 |
417 |
568 |
226 |
4 |
0 |
0 |
| OW |
51 |
1125 |
335 |
671 |
181 |
62 |
0 |
0 |
| VODI |
11 |
407 |
288 |
1031 |
460 |
163 |
37 |
0 |
| ODI |
1 |
87 |
95 |
713 |
546 |
258 |
18 |
0 |
| CDI |
0 |
44 |
38 |
579 |
1752 |
1116 |
107 |
5 |
| VCDI |
0 |
17 |
20 |
214 |
1161 |
7527 |
21090 |
45438 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
92739 |
15182 |
435 |
631 |
224 |
4 |
0 |
0 |
| OW |
50 |
1065 |
343 |
633 |
206 |
65 |
0 |
0 |
| VODI |
10 |
421 |
263 |
996 |
451 |
160 |
40 |
0 |
| ODI |
1 |
92 |
84 |
718 |
530 |
260 |
16 |
0 |
| CDI |
1 |
43 |
49 |
565 |
1818 |
1044 |
115 |
4 |
| VCDI |
0 |
19 |
19 |
233 |
1097 |
7597 |
21081 |
45439 |
|
Date: 2023-11-25:
| 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 |
93182 |
14323 |
332 |
390 |
164 |
0 |
0 |
0 |
| OW |
84 |
1369 |
287 |
679 |
201 |
57 |
0 |
0 |
| VODI |
18 |
628 |
204 |
847 |
521 |
176 |
0 |
0 |
| ODI |
2 |
230 |
105 |
617 |
477 |
284 |
0 |
0 |
| CDI |
0 |
94 |
69 |
737 |
1357 |
1603 |
128 |
3 |
| VCDI |
0 |
54 |
43 |
280 |
934 |
6140 |
19833 |
48291 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
93193 |
14398 |
331 |
472 |
173 |
0 |
0 |
0 |
| OW |
73 |
1258 |
293 |
638 |
217 |
61 |
0 |
0 |
| VODI |
18 |
652 |
196 |
805 |
496 |
180 |
0 |
0 |
| ODI |
1 |
230 |
95 |
631 |
472 |
295 |
0 |
0 |
| CDI |
1 |
105 |
85 |
731 |
1370 |
1568 |
163 |
3 |
| VCDI |
0 |
55 |
40 |
273 |
926 |
6156 |
19798 |
48291 |
|
Date: 2023-11-27:
| 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 |
91156 |
15641 |
401 |
530 |
121 |
0 |
0 |
0 |
| OW |
40 |
1847 |
529 |
629 |
190 |
22 |
0 |
0 |
| VODI |
6 |
240 |
209 |
1492 |
427 |
71 |
0 |
0 |
| ODI |
1 |
53 |
32 |
610 |
1233 |
184 |
2 |
0 |
| CDI |
0 |
48 |
34 |
300 |
1466 |
2587 |
61 |
0 |
| VCDI |
0 |
22 |
17 |
118 |
575 |
6001 |
19769 |
48079 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
91156 |
15217 |
469 |
726 |
169 |
0 |
0 |
0 |
| OW |
35 |
1289 |
240 |
717 |
342 |
73 |
0 |
0 |
| VODI |
11 |
780 |
213 |
664 |
640 |
277 |
0 |
0 |
| ODI |
0 |
329 |
99 |
507 |
607 |
345 |
0 |
0 |
| CDI |
1 |
146 |
146 |
700 |
1227 |
1411 |
93 |
0 |
| VCDI |
0 |
90 |
55 |
365 |
1027 |
6759 |
19739 |
48079 |
|
Date: 2023-11-29:
| 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 |
90248 |
15052 |
688 |
800 |
212 |
3 |
0 |
0 |
| OW |
41 |
1673 |
334 |
845 |
378 |
16 |
0 |
0 |
| VODI |
3 |
462 |
257 |
1060 |
496 |
212 |
1 |
0 |
| ODI |
2 |
115 |
87 |
640 |
983 |
383 |
4 |
0 |
| CDI |
0 |
44 |
40 |
399 |
1841 |
2246 |
127 |
16 |
| VCDI |
0 |
38 |
23 |
150 |
766 |
5821 |
21927 |
46310 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
90144 |
14252 |
574 |
832 |
276 |
21 |
0 |
0 |
| OW |
126 |
1580 |
313 |
727 |
446 |
202 |
0 |
0 |
| VODI |
20 |
914 |
235 |
780 |
546 |
380 |
0 |
0 |
| ODI |
4 |
338 |
118 |
565 |
695 |
302 |
1 |
0 |
| CDI |
0 |
203 |
132 |
678 |
1652 |
1457 |
48 |
24 |
| VCDI |
0 |
97 |
57 |
312 |
1061 |
6319 |
22010 |
46302 |
|
Date: 2023-12-01:
| 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 |
89279 |
14434 |
659 |
917 |
213 |
79 |
0 |
0 |
| OW |
93 |
1505 |
352 |
1483 |
382 |
105 |
0 |
0 |
| VODI |
3 |
420 |
260 |
1220 |
647 |
321 |
0 |
0 |
| ODI |
5 |
139 |
80 |
736 |
823 |
500 |
2 |
0 |
| CDI |
0 |
37 |
39 |
323 |
1051 |
2203 |
333 |
17 |
| VCDI |
0 |
5 |
8 |
113 |
986 |
5614 |
23061 |
46296 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
89000 |
13402 |
544 |
997 |
282 |
70 |
0 |
0 |
| OW |
302 |
1532 |
270 |
1119 |
267 |
316 |
0 |
0 |
| VODI |
71 |
1038 |
249 |
964 |
587 |
452 |
18 |
0 |
| ODI |
5 |
344 |
221 |
712 |
575 |
441 |
25 |
1 |
| CDI |
2 |
178 |
92 |
790 |
1242 |
2102 |
466 |
27 |
| VCDI |
0 |
46 |
22 |
210 |
1149 |
5441 |
22887 |
46285 |
|
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