Validation of sea ice concentration - Full domain
Bulletin date: 2023-12-07
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
84588 |
15447 |
580 |
825 |
489 |
445 |
51 |
0 |
| OW |
139 |
1403 |
362 |
625 |
219 |
68 |
10 |
0 |
| VODI |
0 |
481 |
230 |
686 |
520 |
235 |
45 |
0 |
| ODI |
0 |
126 |
83 |
375 |
694 |
562 |
67 |
0 |
| CDI |
0 |
24 |
43 |
178 |
535 |
1534 |
348 |
8 |
| VCDI |
0 |
23 |
17 |
89 |
555 |
6018 |
33138 |
35183 |
|
...date precedes bulletin
|
Date: 2023-12-03:
| 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 |
82436 |
15077 |
636 |
1044 |
476 |
399 |
23 |
0 |
| OW |
122 |
1975 |
404 |
1013 |
377 |
78 |
9 |
0 |
| VODI |
4 |
506 |
208 |
717 |
632 |
321 |
29 |
0 |
| ODI |
0 |
157 |
72 |
331 |
713 |
642 |
53 |
0 |
| CDI |
0 |
73 |
58 |
201 |
497 |
1337 |
426 |
8 |
| VCDI |
0 |
24 |
25 |
108 |
660 |
5371 |
30125 |
39681 |
|
...date precedes bulletin
|
Date: 2023-12-05:
| 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 |
81409 |
17394 |
765 |
1303 |
516 |
255 |
34 |
16 |
| OW |
266 |
684 |
242 |
580 |
324 |
53 |
7 |
8 |
| VODI |
16 |
219 |
197 |
638 |
687 |
220 |
14 |
7 |
| ODI |
0 |
51 |
55 |
332 |
801 |
491 |
47 |
2 |
| CDI |
0 |
16 |
12 |
147 |
758 |
1662 |
376 |
7 |
| VCDI |
0 |
9 |
7 |
48 |
268 |
4232 |
32279 |
39594 |
|
...date precedes bulletin
|
Date: 2023-12-07:
| 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 |
80246 |
17355 |
687 |
1082 |
453 |
310 |
98 |
13 |
| OW |
132 |
1190 |
289 |
656 |
320 |
88 |
15 |
8 |
| VODI |
2 |
505 |
192 |
598 |
562 |
314 |
22 |
4 |
| ODI |
0 |
141 |
90 |
392 |
583 |
482 |
53 |
0 |
| CDI |
0 |
35 |
26 |
184 |
561 |
1472 |
303 |
0 |
| VCDI |
0 |
31 |
17 |
61 |
372 |
4131 |
30365 |
42608 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
80212 |
17286 |
684 |
1203 |
492 |
316 |
101 |
14 |
| OW |
145 |
1151 |
288 |
507 |
264 |
75 |
12 |
6 |
| VODI |
23 |
571 |
175 |
545 |
571 |
278 |
17 |
5 |
| ODI |
0 |
176 |
102 |
430 |
531 |
498 |
45 |
0 |
| CDI |
0 |
45 |
35 |
223 |
568 |
1383 |
322 |
1 |
| VCDI |
0 |
28 |
17 |
65 |
425 |
4247 |
30359 |
42607 |
|
Date: 2023-12-09:
| 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 |
80166 |
15271 |
536 |
844 |
685 |
465 |
203 |
7 |
| OW |
74 |
1462 |
233 |
757 |
731 |
166 |
21 |
13 |
| VODI |
40 |
807 |
285 |
586 |
590 |
505 |
24 |
3 |
| ODI |
12 |
144 |
64 |
344 |
387 |
748 |
22 |
2 |
| CDI |
0 |
35 |
31 |
166 |
395 |
1590 |
245 |
0 |
| VCDI |
0 |
73 |
23 |
81 |
305 |
3521 |
27167 |
47219 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
80171 |
15368 |
528 |
895 |
896 |
490 |
207 |
8 |
| OW |
72 |
1180 |
220 |
653 |
499 |
159 |
16 |
11 |
| VODI |
31 |
916 |
291 |
601 |
523 |
442 |
22 |
4 |
| ODI |
18 |
225 |
78 |
330 |
432 |
704 |
19 |
2 |
| CDI |
0 |
38 |
28 |
196 |
438 |
1557 |
249 |
2 |
| VCDI |
0 |
65 |
27 |
103 |
305 |
3643 |
27169 |
47217 |
|
Date: 2023-12-11:
| 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 |
78380 |
17088 |
687 |
781 |
315 |
271 |
260 |
0 |
| OW |
72 |
1042 |
357 |
735 |
282 |
25 |
9 |
0 |
| VODI |
3 |
376 |
242 |
854 |
770 |
116 |
19 |
0 |
| ODI |
0 |
66 |
67 |
408 |
1449 |
569 |
32 |
0 |
| CDI |
0 |
27 |
30 |
160 |
623 |
2158 |
374 |
4 |
| VCDI |
0 |
59 |
26 |
129 |
300 |
3637 |
27204 |
47042 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
78395 |
15771 |
615 |
908 |
495 |
379 |
288 |
0 |
| OW |
60 |
1312 |
225 |
514 |
527 |
118 |
29 |
0 |
| VODI |
0 |
969 |
274 |
712 |
1000 |
410 |
51 |
0 |
| ODI |
0 |
286 |
114 |
324 |
631 |
503 |
71 |
0 |
| CDI |
0 |
163 |
89 |
301 |
550 |
1154 |
285 |
5 |
| VCDI |
0 |
157 |
92 |
308 |
536 |
4212 |
27174 |
47041 |
|
Date: 2023-12-13:
| 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 |
78158 |
15139 |
556 |
985 |
481 |
345 |
119 |
0 |
| OW |
52 |
1057 |
265 |
665 |
550 |
120 |
18 |
0 |
| VODI |
0 |
664 |
202 |
540 |
954 |
270 |
23 |
0 |
| ODI |
0 |
208 |
110 |
429 |
680 |
546 |
33 |
0 |
| CDI |
0 |
82 |
60 |
302 |
669 |
1710 |
137 |
4 |
| VCDI |
0 |
93 |
59 |
240 |
767 |
6347 |
26917 |
46492 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
78158 |
14689 |
470 |
790 |
675 |
519 |
158 |
0 |
| OW |
52 |
1006 |
215 |
572 |
453 |
227 |
15 |
2 |
| VODI |
0 |
822 |
262 |
709 |
911 |
718 |
17 |
17 |
| ODI |
0 |
417 |
111 |
414 |
628 |
886 |
52 |
3 |
| CDI |
0 |
167 |
118 |
301 |
503 |
1047 |
174 |
3 |
| VCDI |
0 |
142 |
76 |
375 |
931 |
5941 |
26831 |
46471 |
|
Date: 2023-12-15:
| 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 |
78778 |
13883 |
500 |
771 |
563 |
223 |
194 |
0 |
| OW |
56 |
1061 |
283 |
534 |
626 |
193 |
17 |
0 |
| VODI |
0 |
616 |
218 |
596 |
872 |
460 |
34 |
0 |
| ODI |
0 |
205 |
101 |
386 |
648 |
547 |
40 |
0 |
| CDI |
0 |
158 |
73 |
288 |
768 |
1197 |
165 |
2 |
| VCDI |
0 |
159 |
78 |
282 |
1088 |
7946 |
24252 |
48187 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
78751 |
13364 |
417 |
604 |
663 |
397 |
223 |
0 |
| OW |
83 |
1114 |
212 |
419 |
461 |
234 |
35 |
0 |
| VODI |
0 |
746 |
254 |
597 |
656 |
533 |
46 |
15 |
| ODI |
0 |
382 |
167 |
417 |
711 |
856 |
67 |
7 |
| CDI |
0 |
278 |
98 |
384 |
772 |
1015 |
144 |
7 |
| VCDI |
0 |
198 |
105 |
436 |
1302 |
7531 |
24187 |
48160 |
|
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