Validation of sea ice concentration - American sector
Bulletin date: 2023-10-26
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
29485 |
6031 |
349 |
623 |
134 |
0 |
0 |
0 |
| OW |
1 |
285 |
95 |
472 |
388 |
9 |
0 |
0 |
| VODI |
0 |
49 |
28 |
291 |
614 |
71 |
0 |
0 |
| ODI |
0 |
0 |
6 |
76 |
429 |
328 |
0 |
0 |
| CDI |
0 |
0 |
0 |
54 |
227 |
1870 |
660 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
122 |
1624 |
7196 |
9710 |
|
...date precedes bulletin
|
Date: 2023-10-22:
| 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 |
28603 |
6084 |
254 |
409 |
57 |
0 |
0 |
0 |
| OW |
2 |
333 |
183 |
728 |
264 |
18 |
0 |
0 |
| VODI |
0 |
50 |
33 |
423 |
624 |
80 |
0 |
0 |
| ODI |
0 |
12 |
10 |
100 |
553 |
162 |
2 |
0 |
| CDI |
0 |
9 |
10 |
43 |
319 |
987 |
174 |
0 |
| VCDI |
0 |
0 |
2 |
34 |
151 |
3391 |
7830 |
9297 |
|
...date precedes bulletin
|
Date: 2023-10-24:
| 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 |
29134 |
5672 |
185 |
129 |
12 |
0 |
0 |
0 |
| OW |
0 |
419 |
242 |
500 |
43 |
0 |
0 |
0 |
| VODI |
0 |
43 |
79 |
795 |
384 |
21 |
0 |
0 |
| ODI |
0 |
3 |
3 |
213 |
785 |
124 |
0 |
0 |
| CDI |
0 |
1 |
1 |
36 |
643 |
731 |
4 |
0 |
| VCDI |
0 |
0 |
0 |
15 |
207 |
3318 |
8141 |
9348 |
|
...date precedes bulletin
|
Date: 2023-10-26:
| 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 |
28696 |
5357 |
136 |
167 |
34 |
2 |
0 |
0 |
| OW |
1 |
461 |
236 |
568 |
140 |
13 |
0 |
0 |
| VODI |
0 |
103 |
95 |
713 |
316 |
121 |
0 |
0 |
| ODI |
0 |
5 |
12 |
240 |
431 |
392 |
0 |
0 |
| CDI |
0 |
1 |
1 |
36 |
580 |
912 |
94 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
405 |
4031 |
7788 |
9138 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
28692 |
5316 |
174 |
233 |
30 |
1 |
0 |
0 |
| OW |
1 |
503 |
198 |
488 |
134 |
9 |
0 |
0 |
| VODI |
4 |
101 |
96 |
757 |
338 |
100 |
0 |
0 |
| ODI |
0 |
6 |
11 |
212 |
499 |
306 |
0 |
0 |
| CDI |
0 |
1 |
1 |
37 |
534 |
917 |
34 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
371 |
4138 |
7848 |
9138 |
|
Date: 2023-10-28:
| 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 |
27345 |
5615 |
211 |
365 |
7 |
0 |
0 |
0 |
| OW |
0 |
398 |
193 |
682 |
193 |
31 |
0 |
0 |
| VODI |
0 |
52 |
67 |
610 |
583 |
106 |
0 |
0 |
| ODI |
0 |
5 |
5 |
163 |
633 |
330 |
2 |
0 |
| CDI |
0 |
0 |
0 |
35 |
462 |
1091 |
21 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
86 |
4516 |
7800 |
9624 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
27342 |
5586 |
245 |
465 |
17 |
0 |
0 |
0 |
| OW |
0 |
403 |
165 |
581 |
236 |
25 |
0 |
0 |
| VODI |
3 |
76 |
60 |
612 |
577 |
90 |
0 |
0 |
| ODI |
0 |
3 |
5 |
172 |
573 |
284 |
2 |
0 |
| CDI |
0 |
2 |
1 |
25 |
501 |
1157 |
48 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
60 |
4518 |
7773 |
9624 |
|
Date: 2023-10-30:
| 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 |
26194 |
5568 |
285 |
324 |
15 |
0 |
0 |
0 |
| OW |
0 |
211 |
195 |
697 |
133 |
0 |
0 |
0 |
| VODI |
0 |
0 |
19 |
789 |
564 |
16 |
0 |
0 |
| ODI |
0 |
0 |
0 |
68 |
1181 |
246 |
0 |
0 |
| CDI |
0 |
0 |
0 |
3 |
544 |
1372 |
42 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
2723 |
9117 |
10923 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
26187 |
5432 |
302 |
612 |
154 |
0 |
0 |
0 |
| OW |
4 |
305 |
163 |
676 |
307 |
46 |
0 |
0 |
| VODI |
3 |
40 |
32 |
452 |
663 |
159 |
0 |
0 |
| ODI |
0 |
2 |
2 |
123 |
688 |
318 |
1 |
0 |
| CDI |
0 |
0 |
0 |
18 |
480 |
1037 |
122 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
147 |
2797 |
9036 |
10923 |
|
Date: 2023-11-01:
| 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 |
25686 |
4702 |
351 |
465 |
82 |
0 |
0 |
0 |
| OW |
0 |
306 |
175 |
700 |
361 |
23 |
0 |
0 |
| VODI |
0 |
31 |
21 |
426 |
648 |
160 |
0 |
0 |
| ODI |
0 |
0 |
1 |
122 |
577 |
386 |
0 |
0 |
| CDI |
0 |
0 |
0 |
14 |
646 |
1038 |
35 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
97 |
2005 |
6022 |
16151 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
25676 |
4567 |
360 |
551 |
94 |
0 |
0 |
0 |
| OW |
6 |
396 |
151 |
693 |
593 |
33 |
0 |
0 |
| VODI |
4 |
72 |
30 |
367 |
808 |
236 |
0 |
0 |
| ODI |
0 |
4 |
7 |
87 |
430 |
547 |
0 |
0 |
| CDI |
0 |
0 |
0 |
29 |
310 |
985 |
62 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
176 |
1811 |
5995 |
16151 |
|
Date: 2023-11-03:
| 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 |
25392 |
4072 |
330 |
556 |
39 |
0 |
0 |
0 |
| OW |
1 |
401 |
153 |
516 |
398 |
24 |
0 |
0 |
| VODI |
0 |
48 |
44 |
473 |
674 |
265 |
0 |
0 |
| ODI |
0 |
2 |
3 |
168 |
666 |
280 |
4 |
0 |
| CDI |
0 |
0 |
0 |
53 |
545 |
540 |
41 |
0 |
| VCDI |
0 |
0 |
0 |
14 |
563 |
2146 |
7293 |
15527 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
25374 |
3788 |
363 |
755 |
248 |
9 |
0 |
0 |
| OW |
15 |
540 |
85 |
384 |
472 |
56 |
0 |
0 |
| VODI |
4 |
186 |
76 |
441 |
787 |
384 |
0 |
0 |
| ODI |
0 |
9 |
6 |
140 |
524 |
553 |
1 |
0 |
| CDI |
0 |
0 |
0 |
46 |
400 |
579 |
142 |
0 |
| VCDI |
0 |
0 |
0 |
14 |
454 |
1674 |
7195 |
15527 |
|
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