Validation of sea ice concentration
Bulletin date: 2023-09-28
Model vs. observations, sea ice class contingency tables
Date: 2023-09-22:
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 |
101787 |
17896 |
3549 |
1449 |
378 |
42 |
14 |
1 |
OW |
0 |
288 |
946 |
1372 |
809 |
124 |
8 |
0 |
VODI |
0 |
1 |
145 |
647 |
1085 |
925 |
79 |
0 |
ODI |
0 |
0 |
17 |
92 |
694 |
1290 |
349 |
0 |
CDI |
0 |
0 |
0 |
69 |
410 |
2006 |
4167 |
645 |
VCDI |
0 |
0 |
0 |
26 |
117 |
547 |
10330 |
6316 |
|
...date precedes bulletin
|
Date: 2023-09-26:
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 |
102148 |
16114 |
4533 |
1199 |
205 |
91 |
6 |
8 |
OW |
0 |
100 |
1214 |
804 |
386 |
110 |
4 |
0 |
VODI |
0 |
3 |
299 |
791 |
903 |
638 |
52 |
0 |
ODI |
0 |
0 |
33 |
240 |
864 |
1451 |
218 |
1 |
CDI |
0 |
0 |
0 |
31 |
373 |
1498 |
1825 |
21 |
VCDI |
0 |
0 |
0 |
1 |
37 |
207 |
9483 |
12729 |
|
...date precedes bulletin
|
Date: 2023-09-28:
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 |
102167 |
17313 |
2825 |
1087 |
160 |
42 |
10 |
8 |
OW |
0 |
509 |
890 |
1068 |
193 |
68 |
27 |
0 |
VODI |
0 |
18 |
387 |
1132 |
595 |
339 |
56 |
0 |
ODI |
0 |
0 |
45 |
476 |
947 |
770 |
203 |
1 |
CDI |
0 |
0 |
4 |
95 |
473 |
1276 |
1821 |
0 |
VCDI |
0 |
0 |
0 |
0 |
208 |
528 |
9966 |
12913 |
|
|
observations |
|
Ice free |
Ice free near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI near MIZ |
VCDI |
m o d e l |
Ice free |
102101 |
17352 |
2877 |
1122 |
149 |
36 |
8 |
0 |
OW |
0 |
465 |
887 |
1072 |
198 |
58 |
24 |
0 |
VODI |
0 |
9 |
308 |
1175 |
670 |
398 |
63 |
0 |
ODI |
0 |
0 |
45 |
402 |
874 |
770 |
181 |
0 |
CDI |
0 |
0 |
3 |
87 |
465 |
1194 |
1788 |
0 |
VCDI |
0 |
0 |
0 |
0 |
212 |
555 |
10007 |
12913 |
|
Date: 2023-10-02:
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 |
102268 |
18200 |
1801 |
908 |
124 |
14 |
11 |
3 |
OW |
0 |
437 |
929 |
732 |
136 |
69 |
31 |
1 |
VODI |
0 |
32 |
349 |
834 |
253 |
119 |
63 |
1 |
ODI |
0 |
0 |
104 |
417 |
243 |
193 |
121 |
1 |
CDI |
0 |
0 |
59 |
371 |
351 |
674 |
905 |
2 |
VCDI |
0 |
0 |
10 |
478 |
824 |
2403 |
11353 |
12796 |
|
|
observations |
|
Ice free |
Ice free near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI near MIZ |
VCDI |
m o d e l |
Ice free |
102199 |
17877 |
1834 |
974 |
130 |
15 |
2 |
0 |
OW |
0 |
633 |
766 |
843 |
229 |
117 |
45 |
0 |
VODI |
0 |
75 |
368 |
984 |
374 |
191 |
163 |
0 |
ODI |
0 |
41 |
119 |
542 |
320 |
315 |
207 |
0 |
CDI |
0 |
23 |
119 |
320 |
641 |
936 |
920 |
1 |
VCDI |
0 |
0 |
44 |
60 |
236 |
1882 |
11129 |
12794 |
|
Date: 2023-10-04:
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 |
102009 |
17294 |
2076 |
1063 |
203 |
118 |
14 |
8 |
OW |
0 |
694 |
853 |
414 |
216 |
145 |
7 |
1 |
VODI |
0 |
58 |
633 |
552 |
303 |
146 |
22 |
1 |
ODI |
0 |
0 |
140 |
409 |
305 |
250 |
49 |
1 |
CDI |
0 |
0 |
75 |
339 |
377 |
1214 |
602 |
1 |
VCDI |
0 |
0 |
0 |
3 |
265 |
2787 |
11841 |
13132 |
|
|
observations |
|
Ice free |
Ice free near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI near MIZ |
VCDI |
m o d e l |
Ice free |
101940 |
16808 |
2127 |
1128 |
252 |
148 |
19 |
0 |
OW |
0 |
906 |
576 |
472 |
277 |
223 |
60 |
0 |
VODI |
0 |
265 |
625 |
410 |
337 |
395 |
47 |
0 |
ODI |
0 |
40 |
274 |
387 |
278 |
706 |
133 |
0 |
CDI |
0 |
15 |
155 |
359 |
339 |
1610 |
903 |
0 |
VCDI |
0 |
0 |
0 |
14 |
184 |
1562 |
11363 |
13131 |
|
Date: 2023-10-06:
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 |
99911 |
18091 |
2072 |
1349 |
407 |
192 |
15 |
8 |
OW |
0 |
761 |
747 |
522 |
377 |
152 |
5 |
1 |
VODI |
0 |
129 |
686 |
467 |
315 |
237 |
24 |
1 |
ODI |
0 |
27 |
192 |
366 |
225 |
342 |
45 |
1 |
CDI |
0 |
17 |
103 |
424 |
387 |
1330 |
621 |
63 |
VCDI |
0 |
0 |
39 |
24 |
147 |
2589 |
12508 |
12701 |
|
|
observations |
|
Ice free |
Ice free near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI near MIZ |
VCDI |
m o d e l |
Ice free |
99842 |
17658 |
2068 |
1359 |
456 |
221 |
12 |
0 |
OW |
0 |
901 |
767 |
592 |
373 |
179 |
63 |
0 |
VODI |
0 |
246 |
484 |
397 |
356 |
435 |
65 |
0 |
ODI |
0 |
131 |
238 |
349 |
187 |
652 |
57 |
0 |
CDI |
0 |
77 |
236 |
415 |
345 |
1934 |
697 |
0 |
VCDI |
0 |
0 |
26 |
30 |
140 |
1408 |
12310 |
12762 |
|
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