Validation of sea ice concentration - American sector
Bulletin date: 2024-07-18
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-07-12:
| 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 |
3705 |
6163 |
84 |
85 |
31 |
16 |
0 |
0 |
| OW |
11 |
1636 |
289 |
376 |
97 |
30 |
1 |
0 |
| VODI |
9 |
453 |
334 |
1183 |
889 |
148 |
2 |
0 |
| ODI |
8 |
48 |
33 |
511 |
3099 |
1871 |
0 |
0 |
| CDI |
15 |
20 |
11 |
55 |
1722 |
16608 |
23 |
0 |
| VCDI |
0 |
17 |
6 |
39 |
630 |
5579 |
29 |
0 |
|
...date precedes bulletin
|
Date: 2024-07-14:
| 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 |
4739 |
5565 |
75 |
72 |
33 |
6 |
0 |
0 |
| OW |
3 |
1818 |
256 |
270 |
99 |
33 |
0 |
0 |
| VODI |
10 |
669 |
377 |
1280 |
1235 |
87 |
0 |
0 |
| ODI |
13 |
50 |
40 |
528 |
3212 |
196 |
0 |
0 |
| CDI |
10 |
31 |
7 |
43 |
3626 |
18258 |
418 |
0 |
| VCDI |
0 |
16 |
12 |
77 |
643 |
1937 |
122 |
0 |
|
...date precedes bulletin
|
Date: 2024-07-16:
| 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 |
5272 |
6264 |
68 |
69 |
28 |
1 |
0 |
0 |
| OW |
43 |
1476 |
252 |
293 |
62 |
19 |
0 |
0 |
| VODI |
0 |
411 |
357 |
1289 |
832 |
52 |
0 |
0 |
| ODI |
2 |
10 |
18 |
681 |
4206 |
476 |
5 |
0 |
| CDI |
6 |
86 |
19 |
44 |
5490 |
15204 |
586 |
0 |
| VCDI |
0 |
3 |
4 |
67 |
218 |
1671 |
282 |
0 |
|
...date precedes bulletin
|
Date: 2024-07-18:
| 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 |
5375 |
6326 |
81 |
50 |
2 |
0 |
0 |
0 |
| OW |
14 |
1564 |
249 |
294 |
68 |
6 |
0 |
0 |
| VODI |
1 |
491 |
396 |
1605 |
1053 |
42 |
0 |
0 |
| ODI |
2 |
24 |
37 |
794 |
3866 |
114 |
0 |
0 |
| CDI |
5 |
97 |
29 |
77 |
6375 |
14704 |
9 |
0 |
| VCDI |
0 |
4 |
2 |
52 |
680 |
1291 |
87 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
5372 |
6274 |
86 |
58 |
2 |
0 |
0 |
0 |
| OW |
17 |
1553 |
246 |
271 |
76 |
8 |
0 |
0 |
| VODI |
1 |
552 |
399 |
1643 |
1100 |
44 |
0 |
0 |
| ODI |
2 |
29 |
33 |
775 |
3576 |
81 |
0 |
0 |
| CDI |
5 |
57 |
21 |
57 |
6610 |
14618 |
13 |
0 |
| VCDI |
0 |
41 |
9 |
68 |
680 |
1406 |
83 |
0 |
|
Date: 2024-07-20:
| 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 |
5550 |
6400 |
83 |
42 |
0 |
0 |
0 |
0 |
| OW |
1 |
1512 |
265 |
411 |
100 |
10 |
0 |
0 |
| VODI |
2 |
610 |
389 |
2040 |
1059 |
139 |
9 |
0 |
| ODI |
2 |
37 |
43 |
580 |
3291 |
198 |
7 |
0 |
| CDI |
3 |
127 |
16 |
62 |
6517 |
13182 |
136 |
0 |
| VCDI |
0 |
39 |
13 |
44 |
991 |
1939 |
17 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
5550 |
6381 |
89 |
51 |
1 |
0 |
0 |
0 |
| OW |
1 |
1496 |
256 |
404 |
90 |
24 |
0 |
0 |
| VODI |
2 |
644 |
385 |
2029 |
1121 |
125 |
13 |
0 |
| ODI |
1 |
37 |
49 |
593 |
2898 |
153 |
3 |
0 |
| CDI |
4 |
93 |
10 |
55 |
6871 |
13175 |
147 |
0 |
| VCDI |
0 |
74 |
20 |
47 |
977 |
1991 |
6 |
0 |
|
Date: 2024-07-22:
| 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 |
5984 |
6754 |
68 |
41 |
4 |
0 |
0 |
0 |
| OW |
3 |
1353 |
364 |
365 |
54 |
0 |
0 |
0 |
| VODI |
0 |
308 |
387 |
2463 |
865 |
21 |
0 |
0 |
| ODI |
0 |
50 |
12 |
249 |
6240 |
1078 |
0 |
0 |
| CDI |
0 |
122 |
26 |
45 |
3047 |
12710 |
161 |
0 |
| VCDI |
0 |
4 |
0 |
14 |
655 |
1782 |
637 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
5979 |
6150 |
75 |
34 |
1 |
0 |
0 |
0 |
| OW |
1 |
1558 |
286 |
455 |
111 |
19 |
0 |
0 |
| VODI |
2 |
655 |
401 |
2105 |
1259 |
112 |
0 |
0 |
| ODI |
2 |
38 |
61 |
497 |
2384 |
370 |
0 |
0 |
| CDI |
3 |
116 |
19 |
65 |
6296 |
12314 |
704 |
0 |
| VCDI |
0 |
74 |
15 |
21 |
814 |
2776 |
94 |
0 |
|
Date: 2024-07-24:
| 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 |
6070 |
6856 |
91 |
45 |
8 |
0 |
0 |
0 |
| OW |
2 |
1503 |
358 |
385 |
65 |
4 |
0 |
0 |
| VODI |
0 |
522 |
560 |
2552 |
504 |
21 |
0 |
0 |
| ODI |
0 |
69 |
16 |
1066 |
5705 |
638 |
0 |
0 |
| CDI |
0 |
112 |
17 |
53 |
3333 |
10066 |
1971 |
0 |
| VCDI |
0 |
6 |
2 |
30 |
733 |
1600 |
903 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6061 |
6175 |
93 |
60 |
9 |
0 |
0 |
0 |
| OW |
6 |
1724 |
295 |
502 |
165 |
23 |
0 |
0 |
| VODI |
1 |
863 |
545 |
2347 |
665 |
9 |
0 |
0 |
| ODI |
2 |
103 |
86 |
1015 |
1958 |
184 |
5 |
0 |
| CDI |
2 |
134 |
14 |
172 |
6808 |
10027 |
1659 |
0 |
| VCDI |
0 |
69 |
11 |
35 |
743 |
2086 |
1210 |
0 |
|
Date: 2024-07-26:
| 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 |
6427 |
6606 |
105 |
75 |
11 |
1 |
0 |
0 |
| OW |
0 |
1710 |
404 |
453 |
80 |
14 |
0 |
0 |
| VODI |
0 |
506 |
462 |
2492 |
837 |
33 |
0 |
0 |
| ODI |
0 |
61 |
25 |
809 |
5380 |
1462 |
2 |
0 |
| CDI |
0 |
118 |
11 |
79 |
2344 |
10060 |
2327 |
0 |
| VCDI |
0 |
11 |
11 |
78 |
590 |
1541 |
741 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6422 |
5931 |
123 |
119 |
33 |
11 |
0 |
0 |
| OW |
1 |
1926 |
336 |
629 |
201 |
31 |
0 |
0 |
| VODI |
1 |
862 |
455 |
2021 |
739 |
58 |
0 |
0 |
| ODI |
2 |
69 |
73 |
945 |
1917 |
491 |
48 |
0 |
| CDI |
1 |
169 |
19 |
213 |
5774 |
9731 |
1898 |
0 |
| VCDI |
0 |
55 |
12 |
59 |
578 |
2789 |
1124 |
0 |
|
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