Validation of sea ice concentration - Full domain
Bulletin date: 2023-11-23
Data source: OSI SAF N.H. AMSR 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 |
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 |
|
...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 |
79836 |
13145 |
251 |
323 |
101 |
24 |
0 |
0 |
| OW |
1041 |
1320 |
265 |
450 |
351 |
122 |
2 |
0 |
| VODI |
3211 |
312 |
225 |
786 |
541 |
369 |
67 |
0 |
| ODI |
163 |
55 |
35 |
369 |
730 |
598 |
119 |
0 |
| CDI |
0 |
41 |
26 |
161 |
849 |
2105 |
711 |
1 |
| VCDI |
0 |
18 |
21 |
101 |
376 |
3776 |
29785 |
38028 |
|
...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 |
79828 |
12742 |
272 |
338 |
115 |
10 |
0 |
0 |
| OW |
1047 |
1406 |
169 |
262 |
156 |
32 |
0 |
0 |
| VODI |
2941 |
524 |
296 |
679 |
610 |
96 |
12 |
0 |
| ODI |
441 |
98 |
89 |
377 |
1082 |
342 |
11 |
0 |
| CDI |
0 |
33 |
41 |
175 |
988 |
1895 |
566 |
0 |
| VCDI |
0 |
13 |
16 |
122 |
513 |
4429 |
26712 |
41332 |
|
...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 |
77963 |
13935 |
435 |
328 |
159 |
60 |
0 |
0 |
| OW |
990 |
1349 |
385 |
322 |
142 |
87 |
8 |
0 |
| VODI |
2886 |
716 |
299 |
621 |
419 |
148 |
63 |
0 |
| ODI |
500 |
210 |
142 |
516 |
475 |
255 |
31 |
0 |
| CDI |
0 |
150 |
81 |
419 |
1339 |
1324 |
189 |
0 |
| VCDI |
0 |
88 |
59 |
192 |
948 |
7394 |
26742 |
38441 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
77961 |
13974 |
480 |
349 |
164 |
61 |
0 |
0 |
| OW |
993 |
1300 |
384 |
302 |
151 |
93 |
10 |
0 |
| VODI |
2887 |
715 |
252 |
623 |
402 |
157 |
61 |
0 |
| ODI |
498 |
209 |
140 |
510 |
495 |
229 |
35 |
0 |
| CDI |
0 |
152 |
85 |
422 |
1384 |
1273 |
185 |
0 |
| VCDI |
0 |
98 |
60 |
192 |
886 |
7455 |
26742 |
38441 |
|
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 |
77560 |
14058 |
215 |
275 |
169 |
10 |
0 |
0 |
| OW |
1014 |
1545 |
265 |
380 |
181 |
76 |
7 |
0 |
| VODI |
2823 |
767 |
235 |
580 |
436 |
228 |
26 |
0 |
| ODI |
576 |
362 |
117 |
432 |
355 |
314 |
28 |
0 |
| CDI |
0 |
198 |
144 |
571 |
899 |
1733 |
283 |
1 |
| VCDI |
0 |
186 |
72 |
211 |
612 |
6022 |
24726 |
42118 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
77567 |
14151 |
217 |
317 |
179 |
12 |
0 |
0 |
| OW |
1006 |
1434 |
278 |
349 |
193 |
79 |
10 |
0 |
| VODI |
2826 |
785 |
216 |
558 |
408 |
234 |
26 |
0 |
| ODI |
574 |
347 |
127 |
444 |
366 |
307 |
29 |
0 |
| CDI |
0 |
215 |
140 |
573 |
923 |
1707 |
286 |
1 |
| VCDI |
0 |
184 |
70 |
208 |
583 |
6044 |
24719 |
42118 |
|
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 |
75970 |
15074 |
267 |
354 |
118 |
7 |
0 |
0 |
| OW |
985 |
2176 |
327 |
324 |
165 |
55 |
0 |
0 |
| VODI |
2833 |
539 |
361 |
821 |
468 |
113 |
0 |
0 |
| ODI |
559 |
105 |
86 |
443 |
948 |
436 |
11 |
0 |
| CDI |
0 |
136 |
67 |
277 |
902 |
2620 |
316 |
0 |
| VCDI |
0 |
71 |
48 |
144 |
382 |
6091 |
28264 |
37947 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
75973 |
14767 |
299 |
448 |
158 |
23 |
0 |
0 |
| OW |
973 |
1487 |
231 |
357 |
342 |
114 |
0 |
0 |
| VODI |
2756 |
899 |
230 |
400 |
540 |
357 |
13 |
0 |
| ODI |
645 |
410 |
122 |
320 |
475 |
435 |
15 |
0 |
| CDI |
0 |
294 |
162 |
518 |
795 |
1581 |
202 |
0 |
| VCDI |
0 |
244 |
112 |
320 |
673 |
6812 |
28361 |
37947 |
|
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 |
76124 |
13849 |
328 |
421 |
224 |
34 |
0 |
0 |
| OW |
1020 |
1951 |
267 |
404 |
320 |
91 |
0 |
0 |
| VODI |
2768 |
667 |
277 |
673 |
454 |
278 |
7 |
0 |
| ODI |
630 |
217 |
104 |
447 |
684 |
634 |
18 |
0 |
| CDI |
0 |
163 |
75 |
342 |
1172 |
2454 |
275 |
0 |
| VCDI |
0 |
134 |
39 |
124 |
601 |
5915 |
32895 |
33730 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
76024 |
12960 |
334 |
439 |
281 |
70 |
0 |
0 |
| OW |
1079 |
1860 |
190 |
371 |
370 |
290 |
3 |
0 |
| VODI |
2731 |
1068 |
208 |
490 |
426 |
484 |
15 |
0 |
| ODI |
708 |
467 |
124 |
367 |
501 |
417 |
24 |
0 |
| CDI |
0 |
347 |
162 |
541 |
1107 |
1715 |
152 |
2 |
| VCDI |
0 |
279 |
72 |
203 |
770 |
6430 |
33001 |
33728 |
|
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 |
74911 |
13629 |
360 |
488 |
219 |
90 |
0 |
0 |
| OW |
1042 |
1877 |
431 |
761 |
357 |
158 |
3 |
0 |
| VODI |
2692 |
758 |
285 |
629 |
549 |
425 |
50 |
0 |
| ODI |
716 |
222 |
141 |
476 |
600 |
640 |
68 |
0 |
| CDI |
0 |
117 |
68 |
236 |
619 |
2050 |
724 |
1 |
| VCDI |
0 |
29 |
30 |
188 |
668 |
5499 |
32814 |
35190 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
74674 |
12403 |
370 |
585 |
264 |
98 |
5 |
0 |
| OW |
1206 |
1839 |
280 |
571 |
276 |
325 |
40 |
0 |
| VODI |
2680 |
1333 |
244 |
471 |
495 |
533 |
84 |
0 |
| ODI |
801 |
593 |
190 |
409 |
435 |
478 |
75 |
0 |
| CDI |
0 |
361 |
167 |
504 |
781 |
2054 |
807 |
4 |
| VCDI |
0 |
103 |
64 |
238 |
761 |
5374 |
32648 |
35187 |
|
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