Validation of sea ice concentration - American sector
Bulletin date: 2024-06-27
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-06-21:
| 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 |
15061 |
3738 |
28 |
73 |
6 |
0 |
0 |
0 |
| OW |
12 |
1654 |
245 |
393 |
61 |
10 |
1 |
0 |
| VODI |
5 |
590 |
130 |
905 |
623 |
60 |
5 |
0 |
| ODI |
2 |
223 |
53 |
595 |
1022 |
309 |
35 |
0 |
| CDI |
1 |
62 |
20 |
292 |
2074 |
5398 |
844 |
0 |
| VCDI |
0 |
0 |
4 |
175 |
2019 |
16092 |
6868 |
1543 |
|
...date precedes bulletin
|
Date: 2024-06-23:
| 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 |
15801 |
3158 |
28 |
68 |
2 |
1 |
0 |
0 |
| OW |
45 |
1582 |
234 |
402 |
50 |
22 |
0 |
0 |
| VODI |
6 |
631 |
137 |
954 |
539 |
101 |
0 |
0 |
| ODI |
1 |
280 |
86 |
559 |
945 |
422 |
25 |
0 |
| CDI |
1 |
68 |
24 |
491 |
2278 |
4447 |
828 |
0 |
| VCDI |
0 |
4 |
6 |
106 |
2002 |
16654 |
6847 |
1396 |
|
...date precedes bulletin
|
Date: 2024-06-25:
| 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 |
16442 |
3582 |
47 |
58 |
1 |
2 |
0 |
0 |
| OW |
61 |
1610 |
370 |
380 |
31 |
11 |
0 |
0 |
| VODI |
22 |
187 |
151 |
1580 |
372 |
51 |
0 |
0 |
| ODI |
1 |
27 |
14 |
577 |
1810 |
334 |
5 |
0 |
| CDI |
1 |
7 |
3 |
107 |
1380 |
7556 |
600 |
0 |
| VCDI |
0 |
15 |
2 |
42 |
1756 |
16086 |
5945 |
5 |
|
...date precedes bulletin
|
Date: 2024-06-27:
| 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 |
16357 |
4092 |
58 |
25 |
2 |
1 |
0 |
0 |
| OW |
17 |
1573 |
346 |
391 |
37 |
14 |
0 |
0 |
| VODI |
10 |
347 |
174 |
1277 |
521 |
69 |
0 |
0 |
| ODI |
2 |
39 |
40 |
957 |
1800 |
617 |
0 |
0 |
| CDI |
0 |
15 |
4 |
240 |
2244 |
5303 |
149 |
0 |
| VCDI |
0 |
13 |
0 |
42 |
1627 |
20997 |
1825 |
6 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16365 |
4245 |
74 |
33 |
3 |
1 |
0 |
0 |
| OW |
9 |
1419 |
314 |
427 |
38 |
14 |
0 |
0 |
| VODI |
9 |
344 |
196 |
1252 |
500 |
83 |
0 |
0 |
| ODI |
2 |
42 |
34 |
940 |
1851 |
657 |
1 |
0 |
| CDI |
1 |
9 |
3 |
234 |
2171 |
5313 |
170 |
0 |
| VCDI |
0 |
20 |
1 |
46 |
1668 |
20933 |
1803 |
6 |
|
Date: 2024-06-29:
| 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 |
16437 |
4320 |
61 |
34 |
4 |
0 |
0 |
0 |
| OW |
23 |
1635 |
282 |
371 |
30 |
18 |
0 |
0 |
| VODI |
13 |
470 |
181 |
1225 |
439 |
50 |
0 |
0 |
| ODI |
3 |
71 |
91 |
1055 |
1871 |
752 |
0 |
0 |
| CDI |
0 |
34 |
2 |
229 |
3419 |
3957 |
17 |
0 |
| VCDI |
0 |
17 |
1 |
40 |
1434 |
21820 |
822 |
3 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16442 |
4476 |
76 |
56 |
7 |
0 |
0 |
0 |
| OW |
16 |
1489 |
270 |
387 |
35 |
16 |
0 |
0 |
| VODI |
14 |
469 |
189 |
1204 |
440 |
68 |
0 |
0 |
| ODI |
4 |
59 |
80 |
1008 |
1862 |
741 |
0 |
0 |
| CDI |
0 |
25 |
1 |
256 |
3414 |
4039 |
6 |
0 |
| VCDI |
0 |
29 |
2 |
43 |
1439 |
21733 |
833 |
3 |
|
Date: 2024-07-01:
| 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 |
16549 |
4958 |
61 |
34 |
3 |
0 |
0 |
0 |
| OW |
10 |
1981 |
473 |
334 |
30 |
0 |
0 |
0 |
| VODI |
13 |
110 |
80 |
2100 |
477 |
4 |
0 |
0 |
| ODI |
2 |
8 |
1 |
253 |
3824 |
406 |
0 |
0 |
| CDI |
36 |
0 |
0 |
75 |
1635 |
10469 |
69 |
0 |
| VCDI |
14 |
0 |
0 |
20 |
1370 |
14760 |
1070 |
2 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16551 |
4428 |
51 |
27 |
16 |
0 |
0 |
0 |
| OW |
11 |
1564 |
261 |
368 |
110 |
1 |
0 |
0 |
| VODI |
8 |
664 |
167 |
1178 |
603 |
89 |
0 |
0 |
| ODI |
4 |
396 |
133 |
880 |
1683 |
376 |
0 |
0 |
| CDI |
3 |
5 |
3 |
339 |
3198 |
5017 |
60 |
0 |
| VCDI |
47 |
0 |
0 |
24 |
1729 |
20156 |
1079 |
2 |
|
Date: 2024-07-03:
| 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 |
17046 |
4678 |
47 |
52 |
3 |
0 |
0 |
0 |
| OW |
67 |
2027 |
254 |
360 |
111 |
5 |
0 |
0 |
| VODI |
9 |
245 |
161 |
1882 |
820 |
47 |
0 |
0 |
| ODI |
1 |
27 |
1 |
376 |
3566 |
455 |
0 |
0 |
| CDI |
32 |
12 |
3 |
89 |
4244 |
7022 |
200 |
0 |
| VCDI |
17 |
0 |
0 |
40 |
1505 |
14003 |
1822 |
2 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17001 |
4132 |
37 |
25 |
50 |
1 |
0 |
0 |
| OW |
109 |
1562 |
185 |
450 |
149 |
16 |
0 |
0 |
| VODI |
10 |
827 |
128 |
1165 |
971 |
223 |
0 |
0 |
| ODI |
2 |
454 |
109 |
721 |
1415 |
307 |
0 |
0 |
| CDI |
3 |
14 |
7 |
390 |
4765 |
2765 |
7 |
0 |
| VCDI |
47 |
0 |
0 |
48 |
2899 |
18220 |
2015 |
2 |
|
Date: 2024-07-05:
| 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 |
17977 |
3977 |
53 |
43 |
13 |
0 |
0 |
0 |
| OW |
179 |
2159 |
213 |
352 |
122 |
10 |
0 |
0 |
| VODI |
22 |
311 |
241 |
1694 |
942 |
42 |
0 |
0 |
| ODI |
1 |
44 |
10 |
547 |
3902 |
396 |
0 |
0 |
| CDI |
33 |
13 |
1 |
78 |
4152 |
8271 |
0 |
0 |
| VCDI |
16 |
0 |
0 |
36 |
907 |
12600 |
1872 |
2 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17846 |
3433 |
38 |
54 |
55 |
6 |
0 |
0 |
| OW |
308 |
1549 |
158 |
313 |
157 |
24 |
0 |
0 |
| VODI |
22 |
1158 |
180 |
1164 |
922 |
115 |
0 |
0 |
| ODI |
2 |
338 |
124 |
738 |
1524 |
253 |
0 |
0 |
| CDI |
7 |
26 |
18 |
445 |
5926 |
5051 |
0 |
0 |
| VCDI |
43 |
0 |
0 |
36 |
1454 |
15870 |
1872 |
2 |
|
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