Validation of sea ice concentration - Full domain
Bulletin date: 2022-12-22
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2022-12-16:
| 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 |
67103 |
18927 |
5973 |
553 |
280 |
319 |
28 |
0 |
| OW |
60 |
433 |
369 |
477 |
332 |
56 |
43 |
0 |
| VODI |
0 |
175 |
282 |
510 |
590 |
360 |
102 |
0 |
| ODI |
0 |
72 |
156 |
455 |
781 |
789 |
61 |
0 |
| CDI |
0 |
19 |
74 |
216 |
861 |
1822 |
278 |
0 |
| VCDI |
0 |
41 |
36 |
186 |
1501 |
11356 |
30982 |
40390 |
|
...date precedes bulletin
|
Date: 2022-12-18:
| 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 |
66743 |
19042 |
5803 |
548 |
338 |
261 |
21 |
0 |
| OW |
61 |
428 |
401 |
386 |
356 |
80 |
23 |
0 |
| VODI |
0 |
180 |
305 |
522 |
598 |
337 |
151 |
0 |
| ODI |
0 |
87 |
155 |
397 |
624 |
568 |
274 |
0 |
| CDI |
0 |
34 |
94 |
212 |
563 |
1305 |
870 |
1 |
| VCDI |
0 |
21 |
72 |
330 |
950 |
10967 |
32850 |
40090 |
|
...date precedes bulletin
|
Date: 2022-12-20:
| 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 |
65272 |
22093 |
4064 |
525 |
255 |
238 |
9 |
0 |
| OW |
61 |
257 |
359 |
444 |
223 |
57 |
2 |
0 |
| VODI |
0 |
135 |
279 |
643 |
757 |
143 |
11 |
0 |
| ODI |
0 |
38 |
79 |
418 |
1096 |
566 |
58 |
0 |
| CDI |
0 |
17 |
42 |
171 |
557 |
1366 |
471 |
4 |
| VCDI |
0 |
6 |
56 |
208 |
744 |
8698 |
32997 |
43629 |
|
...date precedes bulletin
|
Date: 2022-12-22:
| 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 |
64433 |
21539 |
5038 |
363 |
193 |
362 |
48 |
0 |
| OW |
63 |
321 |
288 |
387 |
152 |
66 |
32 |
0 |
| VODI |
0 |
142 |
282 |
524 |
364 |
137 |
26 |
0 |
| ODI |
0 |
51 |
74 |
377 |
848 |
564 |
76 |
0 |
| CDI |
0 |
22 |
26 |
236 |
692 |
1145 |
517 |
15 |
| VCDI |
0 |
5 |
19 |
170 |
975 |
8306 |
36344 |
41826 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
64433 |
21581 |
5079 |
404 |
208 |
378 |
52 |
0 |
| OW |
63 |
290 |
275 |
360 |
151 |
60 |
29 |
0 |
| VODI |
0 |
127 |
251 |
540 |
431 |
174 |
26 |
0 |
| ODI |
0 |
57 |
78 |
348 |
802 |
617 |
59 |
0 |
| CDI |
0 |
21 |
27 |
239 |
694 |
1116 |
449 |
21 |
| VCDI |
0 |
4 |
17 |
166 |
938 |
8235 |
36428 |
41820 |
|
Date: 2022-12-24:
| 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 |
65308 |
19673 |
5340 |
352 |
195 |
407 |
42 |
0 |
| OW |
57 |
417 |
346 |
332 |
129 |
46 |
39 |
0 |
| VODI |
0 |
166 |
209 |
517 |
304 |
92 |
25 |
0 |
| ODI |
0 |
45 |
108 |
638 |
616 |
227 |
36 |
0 |
| CDI |
0 |
35 |
43 |
400 |
1089 |
868 |
184 |
15 |
| VCDI |
0 |
4 |
53 |
230 |
1020 |
8461 |
32771 |
46209 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
65309 |
19765 |
5346 |
349 |
202 |
410 |
49 |
0 |
| OW |
56 |
350 |
348 |
344 |
108 |
39 |
32 |
0 |
| VODI |
0 |
137 |
192 |
537 |
345 |
101 |
28 |
0 |
| ODI |
0 |
48 |
105 |
569 |
567 |
285 |
36 |
0 |
| CDI |
0 |
35 |
52 |
334 |
1054 |
829 |
204 |
15 |
| VCDI |
0 |
5 |
56 |
336 |
1077 |
8437 |
32748 |
46209 |
|
Date: 2022-12-26:
| 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 |
67108 |
19939 |
3607 |
321 |
134 |
342 |
23 |
0 |
| OW |
63 |
334 |
389 |
288 |
126 |
65 |
15 |
0 |
| VODI |
0 |
224 |
296 |
847 |
345 |
97 |
29 |
0 |
| ODI |
0 |
113 |
107 |
541 |
610 |
297 |
32 |
0 |
| CDI |
0 |
31 |
38 |
198 |
749 |
848 |
128 |
6 |
| VCDI |
0 |
9 |
102 |
233 |
832 |
6495 |
34583 |
46504 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67101 |
19563 |
3434 |
291 |
178 |
406 |
39 |
0 |
| OW |
70 |
576 |
375 |
250 |
113 |
50 |
27 |
0 |
| VODI |
0 |
260 |
368 |
507 |
269 |
148 |
24 |
0 |
| ODI |
0 |
149 |
161 |
516 |
451 |
242 |
40 |
0 |
| CDI |
0 |
75 |
83 |
503 |
626 |
643 |
176 |
0 |
| VCDI |
0 |
27 |
118 |
361 |
1159 |
6655 |
34504 |
46510 |
|
Date: 2022-12-28:
| 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 |
62310 |
24121 |
3641 |
398 |
162 |
361 |
30 |
0 |
| OW |
73 |
558 |
261 |
268 |
125 |
102 |
11 |
0 |
| VODI |
2 |
223 |
257 |
478 |
298 |
141 |
15 |
0 |
| ODI |
0 |
83 |
110 |
449 |
548 |
362 |
35 |
0 |
| CDI |
0 |
45 |
44 |
227 |
507 |
834 |
301 |
3 |
| VCDI |
0 |
40 |
62 |
262 |
1042 |
7095 |
32088 |
49076 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
62309 |
23704 |
3576 |
359 |
205 |
490 |
48 |
0 |
| OW |
74 |
681 |
169 |
190 |
90 |
91 |
22 |
0 |
| VODI |
2 |
407 |
294 |
385 |
248 |
259 |
60 |
0 |
| ODI |
0 |
111 |
162 |
427 |
329 |
226 |
99 |
0 |
| CDI |
0 |
81 |
77 |
380 |
547 |
664 |
351 |
6 |
| VCDI |
0 |
86 |
97 |
341 |
1263 |
7165 |
31900 |
49073 |
|
Date: 2022-12-30:
| 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 |
64976 |
20942 |
3657 |
366 |
202 |
355 |
59 |
0 |
| OW |
110 |
783 |
204 |
173 |
105 |
109 |
17 |
0 |
| VODI |
3 |
439 |
249 |
358 |
283 |
129 |
15 |
0 |
| ODI |
0 |
171 |
159 |
345 |
452 |
287 |
19 |
0 |
| CDI |
0 |
75 |
106 |
283 |
674 |
784 |
183 |
18 |
| VCDI |
0 |
40 |
236 |
393 |
1254 |
7069 |
33200 |
47766 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
64892 |
20464 |
3649 |
397 |
265 |
463 |
75 |
0 |
| OW |
161 |
616 |
159 |
150 |
108 |
133 |
17 |
0 |
| VODI |
36 |
563 |
150 |
249 |
237 |
230 |
51 |
0 |
| ODI |
0 |
327 |
156 |
209 |
325 |
258 |
77 |
0 |
| CDI |
0 |
252 |
123 |
280 |
522 |
676 |
256 |
44 |
| VCDI |
0 |
228 |
374 |
633 |
1513 |
6973 |
33017 |
47740 |
|
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