Validation of sea ice concentration
Bulletin date: 2023-10-05
Model vs. observations, sea ice class contingency tables
Date: 2023-09-29:
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 |
102410 |
17172 |
2754 |
1053 |
111 |
27 |
14 |
8 |
OW |
0 |
534 |
897 |
1045 |
206 |
67 |
35 |
0 |
VODI |
0 |
62 |
420 |
967 |
515 |
322 |
72 |
0 |
ODI |
0 |
16 |
69 |
415 |
729 |
647 |
194 |
1 |
CDI |
0 |
3 |
27 |
172 |
503 |
1016 |
1486 |
0 |
VCDI |
0 |
0 |
0 |
13 |
289 |
623 |
10356 |
13370 |
|
...date precedes bulletin
|
Date: 2023-10-03:
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 |
101901 |
18070 |
1787 |
1096 |
150 |
21 |
26 |
3 |
OW |
0 |
845 |
794 |
452 |
129 |
64 |
25 |
1 |
VODI |
0 |
91 |
539 |
701 |
201 |
86 |
45 |
1 |
ODI |
0 |
9 |
154 |
432 |
257 |
169 |
100 |
1 |
CDI |
0 |
0 |
112 |
358 |
312 |
741 |
992 |
1 |
VCDI |
0 |
0 |
15 |
523 |
681 |
2112 |
11260 |
13363 |
|
...date precedes bulletin
|
Date: 2023-10-05:
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 |
101230 |
17776 |
1828 |
1008 |
372 |
158 |
19 |
8 |
OW |
0 |
759 |
727 |
514 |
225 |
207 |
1 |
1 |
VODI |
0 |
81 |
664 |
474 |
319 |
224 |
24 |
1 |
ODI |
0 |
8 |
135 |
362 |
284 |
359 |
71 |
1 |
CDI |
0 |
0 |
55 |
318 |
420 |
1253 |
640 |
1 |
VCDI |
0 |
0 |
0 |
4 |
105 |
3093 |
11933 |
12958 |
|
|
observations |
|
Ice free |
Ice free near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI near MIZ |
VCDI |
m o d e l |
Ice free |
101161 |
17776 |
1855 |
998 |
375 |
159 |
17 |
0 |
OW |
0 |
741 |
687 |
510 |
205 |
184 |
0 |
0 |
VODI |
0 |
87 |
669 |
516 |
328 |
239 |
21 |
0 |
ODI |
0 |
8 |
121 |
342 |
316 |
366 |
82 |
0 |
CDI |
0 |
0 |
57 |
303 |
395 |
1262 |
658 |
0 |
VCDI |
0 |
0 |
0 |
1 |
106 |
3070 |
11896 |
12957 |
|
Date: 2023-10-09:
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 |
101525 |
15919 |
2432 |
931 |
374 |
268 |
6 |
8 |
OW |
0 |
486 |
1210 |
588 |
304 |
284 |
22 |
0 |
VODI |
0 |
14 |
332 |
461 |
450 |
536 |
59 |
0 |
ODI |
0 |
0 |
124 |
122 |
247 |
628 |
139 |
0 |
CDI |
0 |
0 |
171 |
238 |
267 |
955 |
1604 |
0 |
VCDI |
0 |
0 |
4 |
148 |
192 |
1214 |
15735 |
10623 |
|
|
observations |
|
Ice free |
Ice free near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI near MIZ |
VCDI |
m o d e l |
Ice free |
101456 |
15573 |
2230 |
909 |
407 |
287 |
11 |
0 |
OW |
0 |
695 |
894 |
438 |
284 |
366 |
32 |
0 |
VODI |
0 |
121 |
504 |
404 |
342 |
564 |
62 |
0 |
ODI |
0 |
14 |
253 |
192 |
176 |
484 |
109 |
0 |
CDI |
0 |
4 |
358 |
316 |
298 |
676 |
1117 |
0 |
VCDI |
0 |
0 |
32 |
223 |
299 |
1492 |
16223 |
10623 |
|
Date: 2023-10-11:
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 |
101991 |
16340 |
1880 |
985 |
125 |
44 |
8 |
8 |
OW |
0 |
564 |
703 |
665 |
247 |
158 |
32 |
1 |
VODI |
0 |
60 |
293 |
801 |
431 |
291 |
96 |
1 |
ODI |
0 |
29 |
154 |
391 |
287 |
264 |
245 |
1 |
CDI |
0 |
34 |
218 |
302 |
293 |
624 |
1190 |
1 |
VCDI |
0 |
0 |
23 |
93 |
129 |
796 |
16043 |
11779 |
|
|
observations |
|
Ice free |
Ice free near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI near MIZ |
VCDI |
m o d e l |
Ice free |
101923 |
15208 |
1587 |
1004 |
153 |
78 |
2 |
0 |
OW |
0 |
1128 |
483 |
489 |
266 |
164 |
24 |
0 |
VODI |
0 |
417 |
345 |
768 |
344 |
233 |
108 |
0 |
ODI |
0 |
166 |
238 |
368 |
272 |
258 |
168 |
0 |
CDI |
0 |
96 |
511 |
348 |
214 |
451 |
817 |
0 |
VCDI |
0 |
0 |
104 |
232 |
263 |
988 |
16472 |
11778 |
|
Date: 2023-10-13:
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 |
102847 |
15364 |
2112 |
718 |
129 |
16 |
5 |
8 |
OW |
0 |
352 |
775 |
570 |
297 |
48 |
15 |
0 |
VODI |
0 |
80 |
339 |
579 |
605 |
374 |
52 |
0 |
ODI |
0 |
11 |
231 |
288 |
264 |
515 |
156 |
0 |
CDI |
0 |
0 |
262 |
246 |
238 |
860 |
910 |
5 |
VCDI |
0 |
0 |
1 |
25 |
92 |
952 |
15892 |
12387 |
|
|
observations |
|
Ice free |
Ice free near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI near MIZ |
VCDI |
m o d e l |
Ice free |
102776 |
13810 |
1237 |
619 |
156 |
23 |
2 |
0 |
OW |
0 |
1047 |
804 |
391 |
226 |
76 |
4 |
0 |
VODI |
0 |
567 |
549 |
421 |
423 |
325 |
16 |
0 |
ODI |
0 |
250 |
374 |
295 |
269 |
477 |
155 |
0 |
CDI |
0 |
124 |
657 |
508 |
311 |
655 |
564 |
0 |
VCDI |
0 |
0 |
96 |
164 |
240 |
1204 |
16261 |
12392 |
|
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