Validation of sea ice concentration - Full domain
Bulletin date: 2023-11-09
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-11-03:
| 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 |
91240 |
11984 |
402 |
416 |
69 |
26 |
2 |
0 |
| OW |
1164 |
1223 |
298 |
453 |
518 |
109 |
2 |
0 |
| VODI |
3092 |
313 |
201 |
521 |
889 |
460 |
21 |
0 |
| ODI |
0 |
67 |
84 |
367 |
890 |
659 |
95 |
0 |
| CDI |
0 |
5 |
29 |
219 |
1065 |
1325 |
399 |
5 |
| VCDI |
0 |
0 |
1 |
79 |
1092 |
6399 |
25454 |
29173 |
|
...date precedes bulletin
|
Date: 2023-11-05:
| 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 |
89789 |
11757 |
346 |
405 |
161 |
4 |
0 |
0 |
| OW |
1103 |
1338 |
342 |
547 |
304 |
51 |
12 |
0 |
| VODI |
3252 |
462 |
243 |
641 |
698 |
404 |
0 |
0 |
| ODI |
0 |
107 |
87 |
317 |
709 |
733 |
62 |
0 |
| CDI |
0 |
38 |
35 |
183 |
781 |
1929 |
555 |
28 |
| VCDI |
0 |
9 |
19 |
88 |
481 |
8139 |
25786 |
28865 |
|
...date precedes bulletin
|
Date: 2023-11-07:
| 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 |
89074 |
11689 |
327 |
308 |
69 |
1 |
0 |
0 |
| OW |
1128 |
1419 |
281 |
463 |
142 |
22 |
10 |
0 |
| VODI |
3281 |
341 |
307 |
894 |
480 |
69 |
1 |
0 |
| ODI |
0 |
39 |
77 |
422 |
918 |
443 |
24 |
0 |
| CDI |
0 |
6 |
5 |
167 |
673 |
1861 |
470 |
3 |
| VCDI |
0 |
1 |
1 |
47 |
253 |
6503 |
30395 |
28196 |
|
...date precedes bulletin
|
Date: 2023-11-09:
| 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 |
86377 |
12135 |
728 |
425 |
80 |
10 |
0 |
0 |
| OW |
1109 |
1171 |
326 |
657 |
419 |
61 |
7 |
0 |
| VODI |
3295 |
445 |
217 |
633 |
734 |
179 |
10 |
0 |
| ODI |
0 |
119 |
98 |
363 |
852 |
436 |
4 |
0 |
| CDI |
0 |
29 |
25 |
143 |
629 |
1749 |
554 |
0 |
| VCDI |
0 |
15 |
9 |
65 |
309 |
5712 |
29889 |
30792 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
86360 |
12170 |
757 |
455 |
131 |
20 |
0 |
0 |
| OW |
1127 |
1094 |
298 |
668 |
415 |
44 |
4 |
0 |
| VODI |
3294 |
468 |
201 |
592 |
747 |
199 |
13 |
0 |
| ODI |
0 |
126 |
103 |
351 |
799 |
470 |
3 |
0 |
| CDI |
0 |
41 |
37 |
160 |
619 |
1643 |
469 |
0 |
| VCDI |
0 |
15 |
7 |
60 |
312 |
5771 |
29975 |
30792 |
|
Date: 2023-11-11:
| 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 |
84715 |
12748 |
181 |
178 |
90 |
3 |
0 |
0 |
| OW |
1100 |
1676 |
391 |
618 |
242 |
64 |
11 |
0 |
| VODI |
3316 |
545 |
351 |
712 |
669 |
244 |
16 |
0 |
| ODI |
0 |
122 |
131 |
430 |
696 |
453 |
20 |
0 |
| CDI |
0 |
32 |
42 |
250 |
698 |
1332 |
443 |
8 |
| VCDI |
0 |
3 |
8 |
81 |
489 |
5172 |
28905 |
33625 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
84722 |
12766 |
213 |
250 |
108 |
8 |
0 |
0 |
| OW |
1096 |
1564 |
344 |
565 |
290 |
67 |
12 |
0 |
| VODI |
3313 |
639 |
355 |
663 |
671 |
231 |
14 |
0 |
| ODI |
0 |
112 |
136 |
451 |
640 |
557 |
18 |
0 |
| CDI |
0 |
37 |
40 |
248 |
681 |
1279 |
430 |
6 |
| VCDI |
0 |
8 |
16 |
92 |
494 |
5126 |
28921 |
33627 |
|
Date: 2023-11-13:
| 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 |
85599 |
11226 |
168 |
198 |
39 |
0 |
0 |
0 |
| OW |
1095 |
1718 |
256 |
307 |
109 |
39 |
1 |
0 |
| VODI |
3331 |
482 |
362 |
1136 |
578 |
81 |
2 |
0 |
| ODI |
0 |
48 |
51 |
653 |
1318 |
424 |
2 |
0 |
| CDI |
0 |
14 |
26 |
132 |
684 |
2162 |
275 |
0 |
| VCDI |
0 |
7 |
6 |
67 |
381 |
6404 |
32617 |
28812 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
85523 |
10907 |
199 |
243 |
49 |
1 |
0 |
0 |
| OW |
1164 |
1442 |
237 |
570 |
302 |
70 |
3 |
0 |
| VODI |
3338 |
800 |
253 |
733 |
760 |
164 |
1 |
0 |
| ODI |
0 |
245 |
100 |
459 |
765 |
563 |
6 |
0 |
| CDI |
0 |
71 |
53 |
331 |
666 |
1491 |
238 |
0 |
| VCDI |
0 |
30 |
27 |
157 |
567 |
6821 |
32649 |
28812 |
|
Date: 2023-11-15:
| 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 |
82295 |
13260 |
291 |
495 |
219 |
2 |
0 |
0 |
| OW |
1051 |
1027 |
260 |
493 |
447 |
36 |
0 |
0 |
| VODI |
3339 |
336 |
194 |
619 |
1059 |
107 |
2 |
0 |
| ODI |
0 |
47 |
59 |
310 |
1305 |
467 |
8 |
0 |
| CDI |
0 |
5 |
13 |
120 |
900 |
2242 |
285 |
1 |
| VCDI |
0 |
4 |
8 |
70 |
526 |
6072 |
31750 |
31086 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
82276 |
12712 |
251 |
391 |
230 |
0 |
0 |
0 |
| OW |
1068 |
1191 |
216 |
469 |
490 |
67 |
1 |
0 |
| VODI |
3341 |
559 |
200 |
569 |
1151 |
252 |
8 |
0 |
| ODI |
0 |
173 |
111 |
366 |
1095 |
600 |
17 |
0 |
| CDI |
0 |
35 |
34 |
210 |
944 |
1785 |
224 |
1 |
| VCDI |
0 |
9 |
13 |
102 |
546 |
6222 |
31795 |
31086 |
|
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 |
80980 |
13148 |
260 |
433 |
142 |
8 |
0 |
0 |
| OW |
1062 |
1038 |
242 |
567 |
534 |
90 |
1 |
0 |
| VODI |
3358 |
179 |
169 |
582 |
988 |
164 |
27 |
0 |
| ODI |
0 |
52 |
27 |
198 |
1155 |
530 |
17 |
0 |
| CDI |
0 |
25 |
29 |
102 |
1031 |
2433 |
434 |
2 |
| VCDI |
0 |
36 |
17 |
92 |
463 |
5401 |
32114 |
32680 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
80946 |
12765 |
268 |
476 |
232 |
15 |
3 |
0 |
| OW |
1096 |
1126 |
184 |
385 |
441 |
115 |
17 |
0 |
| VODI |
3358 |
378 |
187 |
609 |
1072 |
271 |
19 |
0 |
| ODI |
0 |
100 |
41 |
270 |
1150 |
858 |
68 |
0 |
| CDI |
0 |
60 |
35 |
104 |
868 |
2004 |
367 |
3 |
| VCDI |
0 |
49 |
29 |
130 |
550 |
5363 |
32119 |
32679 |
|
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