Validation of sea ice concentration - American sector
Bulletin date: 2022-12-01
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2022-11-25:
| 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 |
666 |
5263 |
1197 |
513 |
196 |
0 |
0 |
0 |
| OW |
45 |
543 |
469 |
307 |
187 |
9 |
0 |
0 |
| VODI |
11 |
175 |
107 |
298 |
297 |
35 |
0 |
0 |
| ODI |
0 |
41 |
3 |
92 |
364 |
143 |
0 |
0 |
| CDI |
0 |
14 |
4 |
33 |
302 |
286 |
86 |
5 |
| VCDI |
0 |
0 |
3 |
42 |
390 |
4525 |
11634 |
17581 |
|
...date precedes bulletin
|
Date: 2022-11-27:
| 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 |
424 |
5199 |
649 |
298 |
276 |
2 |
0 |
0 |
| OW |
41 |
607 |
432 |
402 |
279 |
80 |
0 |
0 |
| VODI |
30 |
241 |
87 |
146 |
260 |
322 |
0 |
0 |
| ODI |
0 |
57 |
16 |
74 |
117 |
376 |
32 |
0 |
| CDI |
0 |
31 |
9 |
22 |
118 |
454 |
179 |
0 |
| VCDI |
0 |
1 |
5 |
33 |
260 |
3524 |
14301 |
16482 |
|
...date precedes bulletin
|
Date: 2022-11-29:
| 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 |
147 |
4270 |
1372 |
356 |
60 |
6 |
0 |
0 |
| OW |
39 |
435 |
366 |
286 |
258 |
52 |
0 |
0 |
| VODI |
10 |
209 |
172 |
432 |
389 |
133 |
0 |
0 |
| ODI |
0 |
40 |
9 |
164 |
362 |
318 |
0 |
0 |
| CDI |
0 |
13 |
5 |
41 |
174 |
679 |
34 |
0 |
| VCDI |
0 |
3 |
3 |
15 |
207 |
3732 |
15280 |
15795 |
|
...date precedes bulletin
|
Date: 2022-12-01:
| 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 |
0 |
2738 |
2618 |
144 |
19 |
0 |
0 |
0 |
| OW |
0 |
421 |
531 |
387 |
139 |
69 |
0 |
0 |
| VODI |
0 |
157 |
308 |
459 |
374 |
168 |
13 |
0 |
| ODI |
0 |
30 |
75 |
201 |
320 |
194 |
11 |
0 |
| CDI |
0 |
15 |
15 |
66 |
273 |
622 |
26 |
0 |
| VCDI |
0 |
13 |
15 |
39 |
217 |
2949 |
14042 |
18198 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
2875 |
2807 |
263 |
34 |
1 |
0 |
0 |
| OW |
0 |
293 |
434 |
370 |
140 |
76 |
0 |
0 |
| VODI |
0 |
147 |
241 |
396 |
383 |
147 |
12 |
0 |
| ODI |
0 |
32 |
55 |
154 |
300 |
157 |
9 |
0 |
| CDI |
0 |
14 |
13 |
76 |
264 |
595 |
27 |
0 |
| VCDI |
0 |
13 |
12 |
37 |
221 |
3026 |
14044 |
18198 |
|
Date: 2022-12-03:
| 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 |
2 |
3880 |
544 |
120 |
112 |
32 |
0 |
0 |
| OW |
4 |
755 |
413 |
308 |
253 |
95 |
0 |
0 |
| VODI |
9 |
231 |
249 |
299 |
410 |
422 |
24 |
0 |
| ODI |
2 |
71 |
76 |
162 |
170 |
377 |
92 |
0 |
| CDI |
0 |
21 |
13 |
104 |
136 |
565 |
268 |
4 |
| VCDI |
0 |
9 |
1 |
60 |
272 |
4381 |
16673 |
14247 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2 |
4034 |
699 |
218 |
218 |
70 |
0 |
0 |
| OW |
4 |
612 |
327 |
273 |
191 |
87 |
1 |
0 |
| VODI |
9 |
243 |
200 |
288 |
391 |
365 |
16 |
0 |
| ODI |
2 |
53 |
55 |
138 |
172 |
385 |
76 |
0 |
| CDI |
0 |
15 |
14 |
87 |
117 |
540 |
257 |
2 |
| VCDI |
0 |
10 |
1 |
49 |
264 |
4425 |
16707 |
14249 |
|
Date: 2022-12-05:
| 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 |
27 |
2742 |
1295 |
80 |
10 |
0 |
0 |
0 |
| OW |
27 |
427 |
577 |
444 |
145 |
5 |
0 |
0 |
| VODI |
9 |
250 |
425 |
649 |
444 |
123 |
6 |
0 |
| ODI |
0 |
114 |
105 |
175 |
322 |
471 |
118 |
0 |
| CDI |
0 |
43 |
53 |
83 |
204 |
834 |
326 |
0 |
| VCDI |
0 |
11 |
16 |
93 |
579 |
5295 |
16038 |
13301 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17 |
2784 |
1088 |
177 |
127 |
47 |
13 |
0 |
| OW |
31 |
417 |
610 |
271 |
136 |
78 |
32 |
0 |
| VODI |
15 |
285 |
510 |
556 |
304 |
249 |
80 |
0 |
| ODI |
0 |
70 |
148 |
285 |
275 |
260 |
146 |
0 |
| CDI |
0 |
16 |
80 |
93 |
231 |
458 |
114 |
0 |
| VCDI |
0 |
15 |
35 |
142 |
631 |
5636 |
16103 |
13301 |
|
Date: 2022-12-07:
| 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 |
0 |
1291 |
704 |
395 |
93 |
0 |
0 |
0 |
| OW |
0 |
390 |
563 |
640 |
499 |
25 |
0 |
0 |
| VODI |
0 |
155 |
258 |
493 |
979 |
296 |
12 |
0 |
| ODI |
0 |
41 |
54 |
197 |
416 |
393 |
101 |
0 |
| CDI |
0 |
16 |
27 |
107 |
166 |
749 |
498 |
7 |
| VCDI |
0 |
5 |
7 |
125 |
602 |
5470 |
16213 |
13879 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
1368 |
754 |
540 |
327 |
11 |
0 |
0 |
| OW |
0 |
296 |
513 |
513 |
418 |
125 |
13 |
0 |
| VODI |
0 |
196 |
254 |
418 |
855 |
369 |
159 |
0 |
| ODI |
0 |
32 |
52 |
226 |
445 |
543 |
220 |
0 |
| CDI |
0 |
0 |
35 |
98 |
205 |
660 |
284 |
6 |
| VCDI |
0 |
6 |
5 |
162 |
505 |
5225 |
16148 |
13880 |
|
Date: 2022-12-09:
| 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 |
0 |
519 |
250 |
97 |
199 |
84 |
0 |
0 |
| OW |
0 |
160 |
314 |
380 |
572 |
204 |
0 |
0 |
| VODI |
0 |
92 |
38 |
248 |
873 |
730 |
72 |
0 |
| ODI |
0 |
54 |
21 |
99 |
637 |
893 |
140 |
0 |
| CDI |
0 |
9 |
11 |
31 |
170 |
1064 |
394 |
1 |
| VCDI |
0 |
2 |
1 |
7 |
228 |
3464 |
18154 |
15654 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
518 |
335 |
253 |
423 |
242 |
0 |
0 |
| OW |
0 |
144 |
166 |
282 |
495 |
301 |
28 |
0 |
| VODI |
0 |
109 |
75 |
199 |
1003 |
806 |
125 |
0 |
| ODI |
0 |
48 |
56 |
110 |
379 |
969 |
377 |
0 |
| CDI |
0 |
15 |
2 |
11 |
201 |
1037 |
464 |
3 |
| VCDI |
0 |
2 |
1 |
7 |
178 |
3084 |
17766 |
15652 |
|
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