Validation of sea ice concentration - American sector
Bulletin date: 2022-09-22
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2022-09-16:
| 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 |
17646 |
8232 |
731 |
399 |
47 |
9 |
0 |
0 |
| OW |
12 |
291 |
339 |
379 |
79 |
6 |
0 |
0 |
| VODI |
0 |
42 |
110 |
738 |
431 |
37 |
0 |
0 |
| ODI |
0 |
2 |
4 |
319 |
869 |
473 |
6 |
0 |
| CDI |
0 |
2 |
0 |
10 |
444 |
2168 |
546 |
0 |
| VCDI |
0 |
6 |
0 |
12 |
24 |
2866 |
8143 |
444 |
|
...date precedes bulletin
|
Date: 2022-09-18:
| 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 |
18710 |
7080 |
494 |
342 |
41 |
0 |
0 |
0 |
| OW |
0 |
498 |
305 |
370 |
166 |
13 |
0 |
0 |
| VODI |
0 |
126 |
145 |
700 |
447 |
113 |
0 |
0 |
| ODI |
0 |
1 |
14 |
312 |
485 |
525 |
21 |
0 |
| CDI |
0 |
3 |
1 |
26 |
345 |
1701 |
590 |
0 |
| VCDI |
0 |
4 |
3 |
8 |
10 |
2198 |
8920 |
1149 |
|
...date precedes bulletin
|
Date: 2022-09-20:
| 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 |
18669 |
6959 |
776 |
602 |
102 |
1 |
0 |
0 |
| OW |
0 |
144 |
240 |
399 |
172 |
13 |
0 |
0 |
| VODI |
0 |
15 |
60 |
540 |
590 |
80 |
0 |
0 |
| ODI |
0 |
0 |
1 |
109 |
686 |
248 |
2 |
0 |
| CDI |
0 |
2 |
0 |
19 |
167 |
1681 |
152 |
0 |
| VCDI |
0 |
5 |
0 |
17 |
48 |
1866 |
10112 |
1389 |
|
...date precedes bulletin
|
Date: 2022-09-22:
| 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 |
18582 |
6697 |
657 |
505 |
120 |
30 |
8 |
0 |
| OW |
1 |
370 |
252 |
502 |
132 |
2 |
0 |
0 |
| VODI |
0 |
11 |
67 |
694 |
502 |
47 |
0 |
0 |
| ODI |
0 |
0 |
3 |
138 |
653 |
199 |
5 |
0 |
| CDI |
0 |
0 |
0 |
22 |
250 |
1315 |
245 |
0 |
| VCDI |
0 |
5 |
1 |
20 |
32 |
1441 |
10849 |
1509 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18583 |
6825 |
707 |
534 |
152 |
30 |
8 |
0 |
| OW |
0 |
241 |
220 |
420 |
93 |
3 |
0 |
0 |
| VODI |
0 |
12 |
51 |
675 |
419 |
53 |
0 |
0 |
| ODI |
0 |
0 |
1 |
220 |
681 |
175 |
9 |
0 |
| CDI |
0 |
0 |
0 |
12 |
277 |
1176 |
243 |
0 |
| VCDI |
0 |
5 |
1 |
20 |
67 |
1597 |
10847 |
1509 |
|
Date: 2022-09-24:
| 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 |
18354 |
6069 |
450 |
598 |
174 |
6 |
1 |
0 |
| OW |
2 |
636 |
225 |
369 |
352 |
22 |
0 |
0 |
| VODI |
0 |
52 |
68 |
478 |
601 |
92 |
0 |
0 |
| ODI |
0 |
0 |
0 |
98 |
648 |
353 |
0 |
0 |
| CDI |
0 |
0 |
0 |
2 |
239 |
1102 |
82 |
0 |
| VCDI |
0 |
5 |
1 |
3 |
93 |
4509 |
9837 |
345 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18355 |
6244 |
485 |
644 |
273 |
6 |
0 |
0 |
| OW |
1 |
460 |
167 |
339 |
225 |
20 |
1 |
0 |
| VODI |
0 |
53 |
91 |
445 |
589 |
69 |
0 |
0 |
| ODI |
0 |
0 |
0 |
115 |
650 |
300 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
278 |
968 |
80 |
0 |
| VCDI |
0 |
5 |
1 |
5 |
92 |
4721 |
9839 |
345 |
|
Date: 2022-09-26:
| 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 |
18017 |
6185 |
517 |
639 |
74 |
2 |
0 |
0 |
| OW |
1 |
75 |
93 |
427 |
187 |
14 |
1 |
0 |
| VODI |
0 |
72 |
54 |
338 |
535 |
104 |
0 |
0 |
| ODI |
0 |
1 |
0 |
71 |
919 |
296 |
0 |
0 |
| CDI |
0 |
0 |
0 |
1 |
197 |
1409 |
103 |
0 |
| VCDI |
0 |
2 |
1 |
1 |
22 |
5058 |
10121 |
329 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18018 |
5714 |
373 |
554 |
178 |
60 |
1 |
0 |
| OW |
0 |
497 |
189 |
396 |
301 |
86 |
0 |
0 |
| VODI |
0 |
121 |
97 |
442 |
483 |
183 |
0 |
0 |
| ODI |
0 |
1 |
5 |
83 |
718 |
349 |
12 |
0 |
| CDI |
0 |
0 |
0 |
0 |
229 |
752 |
86 |
0 |
| VCDI |
0 |
2 |
1 |
2 |
25 |
5453 |
10126 |
329 |
|
Date: 2022-09-28:
| 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 |
17469 |
6177 |
397 |
395 |
190 |
182 |
0 |
0 |
| OW |
0 |
186 |
102 |
305 |
251 |
191 |
0 |
0 |
| VODI |
0 |
22 |
32 |
202 |
589 |
299 |
0 |
0 |
| ODI |
0 |
1 |
0 |
24 |
417 |
646 |
6 |
0 |
| CDI |
0 |
0 |
0 |
5 |
160 |
916 |
364 |
0 |
| VCDI |
0 |
1 |
1 |
4 |
23 |
5339 |
10946 |
24 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17469 |
5592 |
219 |
255 |
249 |
298 |
0 |
0 |
| OW |
0 |
530 |
115 |
213 |
374 |
258 |
3 |
0 |
| VODI |
0 |
263 |
193 |
371 |
359 |
379 |
46 |
0 |
| ODI |
0 |
1 |
4 |
89 |
490 |
508 |
87 |
0 |
| CDI |
0 |
0 |
0 |
3 |
135 |
739 |
306 |
0 |
| VCDI |
0 |
1 |
1 |
4 |
23 |
5391 |
10874 |
24 |
|
Date: 2022-09-30:
| 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 |
17344 |
6038 |
372 |
409 |
220 |
33 |
0 |
0 |
| OW |
9 |
335 |
148 |
319 |
311 |
52 |
0 |
0 |
| VODI |
0 |
42 |
64 |
281 |
591 |
142 |
9 |
0 |
| ODI |
0 |
2 |
4 |
83 |
569 |
317 |
6 |
0 |
| CDI |
0 |
0 |
0 |
11 |
360 |
900 |
106 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
109 |
6154 |
10469 |
54 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17343 |
5309 |
193 |
267 |
486 |
123 |
0 |
0 |
| OW |
10 |
664 |
151 |
147 |
311 |
66 |
8 |
0 |
| VODI |
0 |
383 |
191 |
358 |
425 |
411 |
29 |
0 |
| ODI |
0 |
61 |
53 |
307 |
357 |
377 |
51 |
0 |
| CDI |
0 |
0 |
0 |
24 |
426 |
527 |
236 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
155 |
6094 |
10266 |
54 |
|
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