Validation of sea ice concentration - American sector
Bulletin date: 2021-08-12
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2021-08-06:
| 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 |
11352 |
5500 |
78 |
321 |
6 |
0 |
0 |
0 |
| OW |
0 |
425 |
42 |
573 |
34 |
0 |
0 |
0 |
| VODI |
0 |
88 |
22 |
594 |
854 |
16 |
0 |
0 |
| ODI |
0 |
7 |
4 |
127 |
4755 |
1013 |
0 |
0 |
| CDI |
0 |
35 |
1 |
9 |
1612 |
6640 |
649 |
0 |
| VCDI |
0 |
9 |
7 |
39 |
230 |
4610 |
6109 |
105 |
|
...date precedes bulletin
|
Date: 2021-08-08:
| 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 |
11771 |
4984 |
83 |
396 |
71 |
0 |
0 |
0 |
| OW |
0 |
370 |
47 |
444 |
189 |
0 |
0 |
0 |
| VODI |
0 |
114 |
27 |
541 |
1186 |
0 |
0 |
0 |
| ODI |
0 |
9 |
2 |
136 |
4707 |
820 |
0 |
0 |
| CDI |
0 |
33 |
5 |
8 |
1644 |
7119 |
275 |
0 |
| VCDI |
0 |
6 |
4 |
60 |
353 |
4504 |
4986 |
972 |
|
...date precedes bulletin
|
Date: 2021-08-10:
| 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 |
11429 |
5688 |
106 |
386 |
10 |
0 |
0 |
0 |
| OW |
0 |
169 |
47 |
443 |
51 |
0 |
0 |
0 |
| VODI |
0 |
25 |
14 |
783 |
521 |
0 |
0 |
0 |
| ODI |
0 |
13 |
0 |
85 |
6152 |
356 |
0 |
0 |
| CDI |
0 |
17 |
4 |
7 |
1148 |
7809 |
1636 |
0 |
| VCDI |
0 |
12 |
6 |
82 |
205 |
3110 |
5552 |
0 |
|
...date precedes bulletin
|
Date: 2021-08-12:
| 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 |
11218 |
5877 |
101 |
420 |
45 |
0 |
0 |
0 |
| OW |
0 |
185 |
39 |
524 |
68 |
0 |
0 |
0 |
| VODI |
0 |
37 |
18 |
783 |
996 |
0 |
0 |
0 |
| ODI |
0 |
16 |
0 |
111 |
5616 |
527 |
0 |
0 |
| CDI |
0 |
17 |
1 |
11 |
1058 |
8108 |
1635 |
0 |
| VCDI |
0 |
28 |
5 |
112 |
235 |
1714 |
5928 |
433 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11218 |
5884 |
103 |
482 |
49 |
0 |
0 |
0 |
| OW |
0 |
171 |
32 |
472 |
68 |
0 |
0 |
0 |
| VODI |
0 |
40 |
23 |
781 |
1087 |
0 |
0 |
0 |
| ODI |
0 |
9 |
0 |
102 |
5371 |
505 |
3 |
0 |
| CDI |
0 |
23 |
0 |
9 |
1207 |
7914 |
1657 |
0 |
| VCDI |
0 |
33 |
6 |
115 |
236 |
1930 |
5903 |
433 |
|
Date: 2021-08-14:
| 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 |
10932 |
6470 |
87 |
330 |
30 |
0 |
0 |
0 |
| OW |
0 |
234 |
48 |
565 |
100 |
0 |
0 |
0 |
| VODI |
0 |
52 |
10 |
816 |
1354 |
3 |
0 |
0 |
| ODI |
0 |
17 |
0 |
272 |
4962 |
648 |
7 |
0 |
| CDI |
0 |
16 |
0 |
10 |
1199 |
7606 |
2866 |
54 |
| VCDI |
0 |
51 |
8 |
92 |
157 |
1840 |
4047 |
983 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10932 |
6454 |
93 |
392 |
38 |
0 |
0 |
0 |
| OW |
0 |
247 |
41 |
552 |
91 |
0 |
0 |
0 |
| VODI |
0 |
50 |
11 |
851 |
1372 |
7 |
0 |
0 |
| ODI |
0 |
14 |
0 |
187 |
4793 |
655 |
12 |
0 |
| CDI |
0 |
20 |
0 |
10 |
1350 |
7312 |
3015 |
61 |
| VCDI |
0 |
55 |
8 |
93 |
158 |
2123 |
3893 |
976 |
|
Date: 2021-08-16:
| 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 |
11024 |
6629 |
101 |
411 |
15 |
0 |
0 |
0 |
| OW |
0 |
218 |
51 |
431 |
43 |
0 |
0 |
0 |
| VODI |
0 |
32 |
20 |
1809 |
702 |
4 |
0 |
0 |
| ODI |
0 |
10 |
1 |
211 |
5603 |
190 |
0 |
0 |
| CDI |
0 |
0 |
0 |
30 |
1288 |
7444 |
525 |
0 |
| VCDI |
0 |
54 |
7 |
72 |
113 |
1866 |
6194 |
768 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11024 |
6519 |
106 |
508 |
21 |
0 |
0 |
0 |
| OW |
0 |
232 |
41 |
582 |
101 |
0 |
0 |
0 |
| VODI |
0 |
104 |
23 |
1084 |
1413 |
9 |
0 |
0 |
| ODI |
0 |
16 |
0 |
686 |
4096 |
353 |
15 |
0 |
| CDI |
0 |
17 |
2 |
12 |
1962 |
6677 |
3128 |
72 |
| VCDI |
0 |
55 |
8 |
92 |
171 |
2465 |
3576 |
696 |
|
Date: 2021-08-18:
| 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 |
11273 |
6408 |
88 |
520 |
23 |
0 |
0 |
0 |
| OW |
0 |
261 |
53 |
486 |
59 |
1 |
0 |
0 |
| VODI |
0 |
43 |
18 |
2063 |
1240 |
13 |
0 |
0 |
| ODI |
0 |
9 |
2 |
229 |
4436 |
530 |
0 |
0 |
| CDI |
0 |
0 |
0 |
12 |
1935 |
6104 |
2003 |
39 |
| VCDI |
0 |
35 |
6 |
63 |
143 |
1556 |
5693 |
522 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11273 |
6354 |
103 |
700 |
39 |
0 |
0 |
0 |
| OW |
0 |
206 |
32 |
489 |
226 |
0 |
0 |
0 |
| VODI |
0 |
128 |
23 |
1387 |
1514 |
61 |
0 |
0 |
| ODI |
0 |
23 |
0 |
711 |
3426 |
625 |
0 |
0 |
| CDI |
0 |
12 |
3 |
20 |
2385 |
5996 |
5371 |
561 |
| VCDI |
0 |
33 |
6 |
66 |
246 |
1522 |
2325 |
0 |
|
Date: 2021-08-20:
| 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 |
11399 |
6494 |
96 |
475 |
38 |
0 |
0 |
0 |
| OW |
0 |
306 |
50 |
579 |
63 |
4 |
0 |
0 |
| VODI |
0 |
60 |
30 |
2871 |
1166 |
11 |
0 |
0 |
| ODI |
0 |
7 |
1 |
367 |
3388 |
603 |
0 |
0 |
| CDI |
0 |
0 |
0 |
4 |
1723 |
5556 |
3435 |
719 |
| VCDI |
0 |
16 |
4 |
78 |
158 |
1379 |
4593 |
193 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11399 |
6359 |
112 |
692 |
65 |
3 |
0 |
0 |
| OW |
0 |
264 |
19 |
557 |
196 |
2 |
0 |
0 |
| VODI |
0 |
217 |
43 |
1995 |
1208 |
41 |
0 |
0 |
| ODI |
0 |
19 |
0 |
1015 |
2762 |
730 |
17 |
12 |
| CDI |
0 |
12 |
3 |
38 |
2089 |
5560 |
7371 |
823 |
| VCDI |
0 |
12 |
4 |
77 |
216 |
1217 |
640 |
77 |
|
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