Validation of sea ice concentration - Full domain
Bulletin date: 2024-03-28
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-03-22:
| 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 |
56278 |
13704 |
115 |
118 |
56 |
4 |
0 |
0 |
| OW |
729 |
1437 |
243 |
317 |
146 |
41 |
1 |
0 |
| VODI |
1746 |
560 |
206 |
456 |
340 |
168 |
36 |
0 |
| ODI |
1875 |
177 |
100 |
295 |
464 |
465 |
145 |
0 |
| CDI |
0 |
127 |
88 |
285 |
483 |
1126 |
1987 |
13 |
| VCDI |
0 |
11 |
21 |
206 |
663 |
2467 |
32946 |
60165 |
|
...date precedes bulletin
|
Date: 2024-03-24:
| 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 |
56759 |
13167 |
118 |
57 |
17 |
6 |
0 |
0 |
| OW |
694 |
1440 |
263 |
292 |
124 |
21 |
3 |
0 |
| VODI |
1745 |
631 |
210 |
441 |
322 |
126 |
56 |
0 |
| ODI |
1877 |
240 |
111 |
315 |
373 |
449 |
172 |
0 |
| CDI |
0 |
190 |
112 |
311 |
680 |
1153 |
1655 |
0 |
| VCDI |
0 |
12 |
19 |
150 |
514 |
2982 |
32229 |
60774 |
|
...date precedes bulletin
|
Date: 2024-03-26:
| 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 |
56176 |
13860 |
151 |
106 |
28 |
8 |
2 |
0 |
| OW |
678 |
1406 |
284 |
238 |
56 |
11 |
7 |
0 |
| VODI |
1739 |
363 |
228 |
621 |
431 |
66 |
3 |
0 |
| ODI |
1884 |
76 |
80 |
293 |
596 |
377 |
44 |
0 |
| CDI |
0 |
51 |
42 |
202 |
761 |
1687 |
1192 |
0 |
| VCDI |
0 |
8 |
14 |
89 |
376 |
3224 |
33055 |
60297 |
|
...date precedes bulletin
|
Date: 2024-03-28:
| 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 |
56343 |
13594 |
73 |
61 |
36 |
3 |
0 |
0 |
| OW |
687 |
1310 |
290 |
291 |
81 |
11 |
0 |
0 |
| VODI |
1740 |
373 |
203 |
539 |
412 |
98 |
1 |
0 |
| ODI |
1884 |
126 |
92 |
280 |
401 |
489 |
86 |
0 |
| CDI |
0 |
54 |
62 |
315 |
789 |
1547 |
2195 |
9 |
| VCDI |
0 |
13 |
12 |
96 |
456 |
2931 |
34356 |
58471 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
56345 |
13677 |
81 |
66 |
33 |
2 |
0 |
0 |
| OW |
685 |
1236 |
285 |
302 |
95 |
13 |
0 |
0 |
| VODI |
1740 |
369 |
200 |
524 |
391 |
102 |
1 |
0 |
| ODI |
1884 |
119 |
95 |
266 |
417 |
497 |
90 |
0 |
| CDI |
0 |
52 |
56 |
326 |
785 |
1556 |
2170 |
12 |
| VCDI |
0 |
17 |
15 |
98 |
454 |
2909 |
34377 |
58468 |
|
Date: 2024-03-30:
| 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 |
55868 |
13881 |
76 |
108 |
37 |
7 |
0 |
0 |
| OW |
699 |
1374 |
236 |
305 |
83 |
12 |
1 |
0 |
| VODI |
1745 |
531 |
189 |
466 |
392 |
110 |
15 |
0 |
| ODI |
1878 |
247 |
126 |
329 |
569 |
403 |
47 |
0 |
| CDI |
0 |
219 |
138 |
396 |
626 |
1613 |
1247 |
1 |
| VCDI |
0 |
40 |
31 |
194 |
617 |
3549 |
37730 |
54675 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
55868 |
13968 |
90 |
108 |
34 |
2 |
0 |
0 |
| OW |
700 |
1300 |
223 |
316 |
91 |
19 |
2 |
0 |
| VODI |
1744 |
528 |
189 |
451 |
372 |
106 |
15 |
0 |
| ODI |
1878 |
242 |
121 |
327 |
601 |
412 |
40 |
0 |
| CDI |
0 |
218 |
144 |
405 |
622 |
1636 |
1311 |
5 |
| VCDI |
0 |
36 |
29 |
191 |
604 |
3519 |
37672 |
54671 |
|
Date: 2024-04-01:
| 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 |
56474 |
13769 |
50 |
37 |
20 |
5 |
0 |
0 |
| OW |
708 |
1547 |
229 |
193 |
59 |
9 |
0 |
0 |
| VODI |
1745 |
394 |
311 |
695 |
378 |
43 |
8 |
0 |
| ODI |
1878 |
66 |
90 |
353 |
858 |
332 |
51 |
0 |
| CDI |
0 |
40 |
64 |
323 |
811 |
1943 |
859 |
3 |
| VCDI |
0 |
11 |
20 |
94 |
592 |
3367 |
31724 |
60657 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
56474 |
13240 |
57 |
37 |
12 |
0 |
0 |
0 |
| OW |
709 |
1384 |
210 |
283 |
111 |
25 |
3 |
0 |
| VODI |
1744 |
687 |
190 |
420 |
450 |
135 |
21 |
0 |
| ODI |
1878 |
334 |
137 |
343 |
556 |
538 |
61 |
0 |
| CDI |
0 |
136 |
112 |
398 |
825 |
1331 |
1605 |
18 |
| VCDI |
0 |
46 |
58 |
214 |
764 |
3670 |
30952 |
60642 |
|
Date: 2024-04-03:
| 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 |
56124 |
13787 |
49 |
30 |
17 |
3 |
1 |
0 |
| OW |
726 |
1469 |
192 |
194 |
70 |
16 |
11 |
0 |
| VODI |
1744 |
614 |
294 |
552 |
267 |
36 |
15 |
0 |
| ODI |
1878 |
142 |
102 |
441 |
773 |
311 |
97 |
10 |
| CDI |
0 |
76 |
99 |
384 |
1023 |
2129 |
1842 |
71 |
| VCDI |
0 |
13 |
10 |
52 |
296 |
2358 |
28750 |
63742 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
56124 |
13042 |
55 |
41 |
12 |
3 |
0 |
0 |
| OW |
725 |
1463 |
197 |
294 |
92 |
18 |
14 |
0 |
| VODI |
1745 |
874 |
151 |
363 |
434 |
121 |
42 |
0 |
| ODI |
1878 |
465 |
148 |
326 |
585 |
385 |
105 |
8 |
| CDI |
0 |
240 |
178 |
557 |
961 |
1766 |
2242 |
30 |
| VCDI |
0 |
17 |
17 |
72 |
362 |
2560 |
28313 |
63785 |
|
Date: 2024-04-05:
| 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 |
56456 |
13238 |
35 |
34 |
6 |
4 |
0 |
0 |
| OW |
733 |
1532 |
202 |
223 |
93 |
20 |
1 |
0 |
| VODI |
1747 |
619 |
278 |
559 |
317 |
73 |
16 |
0 |
| ODI |
1874 |
171 |
111 |
409 |
504 |
423 |
73 |
3 |
| CDI |
0 |
59 |
78 |
413 |
939 |
2007 |
2313 |
41 |
| VCDI |
0 |
2 |
2 |
34 |
359 |
2224 |
26146 |
66439 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
56456 |
12553 |
75 |
82 |
10 |
4 |
0 |
0 |
| OW |
733 |
1513 |
179 |
278 |
107 |
20 |
0 |
0 |
| VODI |
1747 |
874 |
150 |
401 |
393 |
214 |
12 |
0 |
| ODI |
1874 |
486 |
150 |
287 |
355 |
489 |
139 |
1 |
| CDI |
0 |
192 |
149 |
590 |
906 |
1578 |
2250 |
27 |
| VCDI |
0 |
3 |
3 |
34 |
447 |
2446 |
26148 |
66455 |
|
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