Validation of sea ice concentration - American sector
Bulletin date: 2023-10-12
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-10-06:
| 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 |
19942 |
5969 |
261 |
350 |
75 |
0 |
0 |
0 |
| OW |
0 |
340 |
210 |
633 |
333 |
32 |
0 |
0 |
| VODI |
0 |
50 |
44 |
351 |
620 |
199 |
3 |
0 |
| ODI |
0 |
16 |
9 |
107 |
438 |
416 |
32 |
0 |
| CDI |
0 |
0 |
3 |
51 |
338 |
1113 |
421 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
124 |
1618 |
10829 |
937 |
|
...date precedes bulletin
|
Date: 2023-10-08:
| 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 |
19026 |
5746 |
234 |
334 |
70 |
0 |
0 |
0 |
| OW |
0 |
719 |
201 |
460 |
377 |
20 |
0 |
0 |
| VODI |
0 |
58 |
67 |
343 |
826 |
138 |
0 |
0 |
| ODI |
0 |
17 |
21 |
75 |
424 |
546 |
12 |
0 |
| CDI |
0 |
0 |
2 |
18 |
154 |
932 |
274 |
1 |
| VCDI |
0 |
0 |
0 |
0 |
8 |
845 |
9934 |
3984 |
|
...date precedes bulletin
|
Date: 2023-10-10:
| 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 |
18228 |
5964 |
219 |
252 |
31 |
0 |
0 |
0 |
| OW |
0 |
322 |
166 |
527 |
181 |
14 |
0 |
0 |
| VODI |
0 |
44 |
66 |
435 |
358 |
78 |
0 |
0 |
| ODI |
0 |
6 |
18 |
197 |
493 |
200 |
5 |
0 |
| CDI |
0 |
0 |
2 |
39 |
706 |
960 |
221 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
35 |
873 |
8869 |
6357 |
|
...date precedes bulletin
|
Date: 2023-10-12:
| 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 |
18033 |
5364 |
167 |
200 |
18 |
0 |
0 |
0 |
| OW |
0 |
738 |
156 |
516 |
172 |
20 |
0 |
0 |
| VODI |
0 |
120 |
92 |
322 |
455 |
80 |
4 |
0 |
| ODI |
0 |
55 |
34 |
147 |
402 |
239 |
10 |
0 |
| CDI |
0 |
12 |
13 |
57 |
416 |
1241 |
298 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
27 |
1356 |
7937 |
7163 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18033 |
5417 |
207 |
289 |
45 |
0 |
0 |
0 |
| OW |
0 |
659 |
106 |
426 |
172 |
19 |
0 |
0 |
| VODI |
0 |
146 |
100 |
313 |
420 |
98 |
3 |
0 |
| ODI |
0 |
51 |
32 |
132 |
451 |
256 |
13 |
0 |
| CDI |
0 |
16 |
17 |
80 |
365 |
1301 |
378 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
37 |
1262 |
7855 |
7163 |
|
Date: 2023-10-14:
| 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 |
17284 |
5523 |
124 |
174 |
45 |
5 |
0 |
0 |
| OW |
0 |
610 |
189 |
445 |
368 |
82 |
0 |
0 |
| VODI |
0 |
135 |
86 |
201 |
549 |
227 |
31 |
0 |
| ODI |
0 |
35 |
39 |
111 |
350 |
328 |
22 |
0 |
| CDI |
0 |
9 |
16 |
90 |
382 |
1060 |
174 |
0 |
| VCDI |
0 |
0 |
0 |
30 |
145 |
1835 |
7744 |
7418 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17284 |
5634 |
189 |
292 |
113 |
39 |
0 |
0 |
| OW |
0 |
488 |
114 |
271 |
284 |
86 |
3 |
0 |
| VODI |
0 |
148 |
91 |
236 |
539 |
194 |
34 |
0 |
| ODI |
0 |
28 |
45 |
112 |
366 |
319 |
17 |
0 |
| CDI |
0 |
13 |
11 |
106 |
381 |
1162 |
254 |
0 |
| VCDI |
0 |
1 |
4 |
34 |
156 |
1737 |
7663 |
7418 |
|
Date: 2023-10-16:
| 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 |
16491 |
5814 |
170 |
226 |
18 |
0 |
0 |
0 |
| OW |
0 |
615 |
163 |
240 |
73 |
6 |
0 |
0 |
| VODI |
0 |
84 |
108 |
427 |
306 |
53 |
3 |
0 |
| ODI |
0 |
4 |
9 |
181 |
745 |
196 |
12 |
0 |
| CDI |
0 |
1 |
7 |
66 |
713 |
1881 |
115 |
0 |
| VCDI |
0 |
0 |
0 |
21 |
140 |
1409 |
9312 |
6257 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16491 |
5617 |
212 |
327 |
96 |
14 |
10 |
0 |
| OW |
0 |
503 |
100 |
265 |
236 |
124 |
13 |
0 |
| VODI |
0 |
273 |
60 |
213 |
504 |
321 |
29 |
0 |
| ODI |
0 |
100 |
48 |
98 |
368 |
537 |
22 |
0 |
| CDI |
0 |
24 |
30 |
199 |
588 |
1143 |
720 |
0 |
| VCDI |
0 |
1 |
7 |
59 |
203 |
1406 |
8648 |
6257 |
|
Date: 2023-10-18:
| 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 |
15379 |
6200 |
224 |
406 |
170 |
0 |
0 |
0 |
| OW |
0 |
412 |
186 |
356 |
124 |
14 |
0 |
0 |
| VODI |
0 |
59 |
74 |
367 |
339 |
91 |
5 |
0 |
| ODI |
0 |
9 |
10 |
126 |
470 |
347 |
47 |
0 |
| CDI |
0 |
0 |
5 |
28 |
423 |
1697 |
531 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
64 |
1200 |
7211 |
9292 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15369 |
5623 |
228 |
420 |
159 |
17 |
0 |
0 |
| OW |
10 |
514 |
105 |
334 |
280 |
72 |
10 |
0 |
| VODI |
0 |
387 |
56 |
242 |
400 |
242 |
29 |
0 |
| ODI |
0 |
134 |
76 |
99 |
208 |
646 |
70 |
0 |
| CDI |
0 |
22 |
34 |
170 |
320 |
912 |
659 |
0 |
| VCDI |
0 |
0 |
0 |
18 |
223 |
1460 |
7026 |
9292 |
|
Date: 2023-10-20:
| 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 |
14583 |
6271 |
269 |
349 |
166 |
7 |
0 |
0 |
| OW |
0 |
361 |
122 |
304 |
324 |
76 |
0 |
0 |
| VODI |
0 |
70 |
59 |
229 |
506 |
125 |
0 |
0 |
| ODI |
0 |
17 |
18 |
77 |
353 |
358 |
4 |
0 |
| CDI |
0 |
9 |
11 |
36 |
199 |
1997 |
529 |
0 |
| VCDI |
0 |
0 |
5 |
10 |
130 |
2393 |
10788 |
5111 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14552 |
5079 |
158 |
264 |
187 |
16 |
0 |
0 |
| OW |
27 |
747 |
61 |
128 |
263 |
64 |
0 |
0 |
| VODI |
4 |
630 |
123 |
215 |
443 |
252 |
0 |
0 |
| ODI |
0 |
181 |
73 |
209 |
240 |
448 |
10 |
0 |
| CDI |
0 |
90 |
60 |
148 |
271 |
1327 |
301 |
0 |
| VCDI |
0 |
1 |
9 |
41 |
274 |
2849 |
11010 |
5111 |
|
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