Validation of sea ice concentration - Full domain
Bulletin date: 2023-11-16
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-11-10:
| 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 |
95861 |
13253 |
421 |
659 |
395 |
239 |
18 |
0 |
| OW |
170 |
1158 |
325 |
595 |
304 |
206 |
3 |
0 |
| VODI |
33 |
443 |
242 |
554 |
667 |
388 |
20 |
0 |
| ODI |
5 |
135 |
114 |
308 |
396 |
604 |
48 |
0 |
| CDI |
0 |
20 |
26 |
146 |
431 |
816 |
239 |
0 |
| VCDI |
0 |
7 |
7 |
58 |
379 |
5174 |
30410 |
31771 |
|
...date precedes bulletin
|
Date: 2023-11-12:
| 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 |
95138 |
12539 |
347 |
641 |
361 |
213 |
25 |
0 |
| OW |
173 |
952 |
305 |
677 |
503 |
208 |
6 |
0 |
| VODI |
38 |
576 |
167 |
632 |
883 |
385 |
14 |
0 |
| ODI |
13 |
182 |
59 |
355 |
529 |
600 |
54 |
0 |
| CDI |
0 |
48 |
35 |
215 |
441 |
994 |
279 |
11 |
| VCDI |
0 |
28 |
16 |
59 |
395 |
4966 |
29597 |
33389 |
|
...date precedes bulletin
|
Date: 2023-11-14:
| 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 |
93387 |
14627 |
373 |
687 |
292 |
131 |
0 |
0 |
| OW |
114 |
627 |
241 |
584 |
242 |
17 |
2 |
0 |
| VODI |
21 |
285 |
179 |
561 |
748 |
209 |
4 |
0 |
| ODI |
7 |
31 |
41 |
383 |
1134 |
625 |
9 |
0 |
| CDI |
0 |
1 |
4 |
108 |
660 |
1490 |
110 |
39 |
| VCDI |
0 |
0 |
0 |
26 |
374 |
7021 |
33187 |
28467 |
|
...date precedes bulletin
|
Date: 2023-11-16:
| 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 |
90979 |
14332 |
552 |
1089 |
764 |
154 |
12 |
0 |
| OW |
139 |
446 |
133 |
354 |
594 |
53 |
3 |
0 |
| VODI |
14 |
192 |
89 |
462 |
996 |
223 |
11 |
0 |
| ODI |
7 |
49 |
44 |
197 |
995 |
664 |
76 |
0 |
| CDI |
1 |
6 |
12 |
111 |
870 |
1620 |
205 |
14 |
| VCDI |
0 |
2 |
5 |
31 |
417 |
6124 |
29705 |
34302 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
91006 |
14266 |
550 |
1127 |
865 |
165 |
14 |
0 |
| OW |
115 |
511 |
135 |
350 |
641 |
55 |
2 |
0 |
| VODI |
12 |
206 |
86 |
419 |
1007 |
262 |
31 |
0 |
| ODI |
7 |
37 |
47 |
218 |
950 |
780 |
61 |
0 |
| CDI |
0 |
4 |
12 |
93 |
743 |
1533 |
180 |
12 |
| VCDI |
0 |
3 |
5 |
37 |
430 |
6043 |
29724 |
34304 |
|
Date: 2023-11-18:
| 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 |
90025 |
14773 |
438 |
728 |
380 |
219 |
19 |
0 |
| OW |
91 |
641 |
164 |
515 |
483 |
168 |
16 |
0 |
| VODI |
6 |
251 |
128 |
518 |
825 |
335 |
40 |
0 |
| ODI |
3 |
33 |
31 |
152 |
712 |
542 |
92 |
0 |
| CDI |
0 |
22 |
18 |
104 |
585 |
1338 |
589 |
0 |
| VCDI |
0 |
10 |
5 |
49 |
552 |
4562 |
30366 |
36520 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
90035 |
14670 |
446 |
893 |
471 |
258 |
24 |
0 |
| OW |
82 |
732 |
143 |
391 |
444 |
142 |
13 |
0 |
| VODI |
8 |
260 |
128 |
461 |
900 |
338 |
64 |
0 |
| ODI |
0 |
33 |
42 |
169 |
664 |
585 |
95 |
0 |
| CDI |
0 |
26 |
21 |
97 |
518 |
1408 |
519 |
1 |
| VCDI |
0 |
9 |
4 |
55 |
540 |
4433 |
30407 |
36519 |
|
Date: 2023-11-20:
| 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 |
89306 |
15305 |
452 |
542 |
427 |
188 |
20 |
0 |
| OW |
63 |
433 |
226 |
540 |
179 |
43 |
2 |
0 |
| VODI |
6 |
98 |
120 |
730 |
770 |
142 |
10 |
0 |
| ODI |
0 |
9 |
14 |
186 |
1004 |
539 |
52 |
0 |
| CDI |
0 |
2 |
10 |
67 |
442 |
1972 |
388 |
5 |
| VCDI |
0 |
0 |
0 |
9 |
188 |
3647 |
30213 |
38699 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
89276 |
14725 |
447 |
673 |
544 |
267 |
28 |
0 |
| OW |
89 |
792 |
176 |
453 |
273 |
122 |
13 |
0 |
| VODI |
10 |
279 |
138 |
541 |
726 |
395 |
81 |
0 |
| ODI |
0 |
42 |
37 |
226 |
542 |
591 |
117 |
0 |
| CDI |
0 |
7 |
20 |
132 |
560 |
1160 |
513 |
30 |
| VCDI |
0 |
2 |
4 |
49 |
365 |
3996 |
29933 |
38674 |
|
Date: 2023-11-22:
| 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 |
86853 |
16810 |
878 |
757 |
449 |
170 |
42 |
0 |
| OW |
75 |
595 |
242 |
489 |
237 |
27 |
5 |
0 |
| VODI |
10 |
284 |
138 |
480 |
627 |
86 |
3 |
0 |
| ODI |
1 |
68 |
49 |
288 |
823 |
367 |
11 |
0 |
| CDI |
0 |
19 |
29 |
117 |
564 |
1224 |
178 |
3 |
| VCDI |
0 |
8 |
8 |
102 |
561 |
7287 |
26565 |
39519 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
86839 |
16183 |
840 |
815 |
584 |
247 |
51 |
0 |
| OW |
71 |
889 |
193 |
420 |
266 |
55 |
11 |
0 |
| VODI |
26 |
482 |
181 |
423 |
737 |
381 |
24 |
0 |
| ODI |
3 |
128 |
71 |
273 |
433 |
531 |
99 |
0 |
| CDI |
0 |
53 |
30 |
143 |
502 |
1121 |
307 |
3 |
| VCDI |
0 |
49 |
29 |
159 |
739 |
6826 |
26312 |
39519 |
|
Date: 2023-11-24:
| 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 |
87527 |
16231 |
361 |
495 |
430 |
194 |
41 |
0 |
| OW |
70 |
1142 |
208 |
403 |
126 |
43 |
10 |
0 |
| VODI |
11 |
492 |
202 |
452 |
485 |
137 |
11 |
0 |
| ODI |
0 |
177 |
90 |
242 |
517 |
383 |
30 |
0 |
| CDI |
0 |
106 |
66 |
221 |
433 |
813 |
112 |
0 |
| VCDI |
0 |
87 |
76 |
354 |
816 |
6929 |
29787 |
36738 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
87528 |
15578 |
356 |
592 |
485 |
273 |
53 |
0 |
| OW |
76 |
1243 |
192 |
349 |
187 |
86 |
8 |
0 |
| VODI |
4 |
752 |
140 |
359 |
522 |
466 |
11 |
0 |
| ODI |
0 |
315 |
119 |
212 |
432 |
565 |
55 |
0 |
| CDI |
0 |
175 |
85 |
223 |
296 |
910 |
186 |
15 |
| VCDI |
0 |
172 |
111 |
432 |
885 |
6199 |
29678 |
36723 |
|
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