Validation of sea ice concentration - American sector
Bulletin date: 2021-09-16
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2021-09-10:
| 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 |
12949 |
8110 |
113 |
320 |
16 |
0 |
0 |
0 |
| OW |
0 |
1538 |
108 |
1235 |
83 |
1 |
0 |
0 |
| VODI |
0 |
276 |
50 |
1615 |
1118 |
9 |
0 |
0 |
| ODI |
0 |
62 |
2 |
209 |
1543 |
119 |
4 |
0 |
| CDI |
0 |
64 |
1 |
26 |
947 |
3610 |
416 |
0 |
| VCDI |
0 |
14 |
1 |
10 |
55 |
2153 |
6515 |
2574 |
|
...date precedes bulletin
|
Date: 2021-09-12:
| 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 |
13661 |
7328 |
102 |
332 |
23 |
0 |
0 |
0 |
| OW |
0 |
1870 |
115 |
1037 |
117 |
0 |
0 |
0 |
| VODI |
0 |
334 |
47 |
1566 |
1018 |
24 |
12 |
0 |
| ODI |
0 |
61 |
7 |
199 |
1123 |
417 |
47 |
0 |
| CDI |
0 |
78 |
1 |
27 |
588 |
3147 |
1086 |
0 |
| VCDI |
0 |
1 |
0 |
4 |
57 |
1179 |
6477 |
3781 |
|
...date precedes bulletin
|
Date: 2021-09-14:
| 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 |
12764 |
9210 |
144 |
621 |
30 |
0 |
0 |
0 |
| OW |
0 |
727 |
101 |
974 |
82 |
0 |
0 |
0 |
| VODI |
0 |
140 |
39 |
1539 |
943 |
1 |
0 |
0 |
| ODI |
0 |
82 |
4 |
103 |
1557 |
254 |
11 |
0 |
| CDI |
0 |
33 |
0 |
9 |
305 |
3302 |
332 |
80 |
| VCDI |
0 |
0 |
0 |
4 |
45 |
1259 |
5263 |
5908 |
|
...date precedes bulletin
|
Date: 2021-09-16:
| 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 |
13235 |
8564 |
119 |
511 |
43 |
0 |
0 |
0 |
| OW |
0 |
881 |
112 |
1113 |
116 |
0 |
0 |
0 |
| VODI |
0 |
121 |
32 |
1466 |
977 |
29 |
0 |
0 |
| ODI |
0 |
72 |
6 |
130 |
1223 |
422 |
12 |
1 |
| CDI |
0 |
29 |
0 |
18 |
252 |
2393 |
821 |
92 |
| VCDI |
0 |
0 |
0 |
0 |
9 |
1744 |
6570 |
4753 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13235 |
8850 |
143 |
763 |
57 |
0 |
0 |
0 |
| OW |
0 |
537 |
79 |
934 |
110 |
2 |
0 |
0 |
| VODI |
0 |
181 |
41 |
1385 |
1062 |
25 |
0 |
0 |
| ODI |
0 |
71 |
6 |
134 |
1132 |
495 |
13 |
2 |
| CDI |
0 |
28 |
0 |
22 |
246 |
2406 |
771 |
120 |
| VCDI |
0 |
0 |
0 |
0 |
13 |
1660 |
6619 |
4724 |
|
Date: 2021-09-18:
| 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 |
13611 |
7757 |
108 |
537 |
89 |
0 |
0 |
0 |
| OW |
0 |
992 |
100 |
1180 |
229 |
0 |
0 |
0 |
| VODI |
0 |
163 |
36 |
1314 |
1108 |
21 |
0 |
0 |
| ODI |
0 |
103 |
2 |
181 |
1217 |
312 |
15 |
1 |
| CDI |
0 |
29 |
1 |
25 |
364 |
2043 |
697 |
49 |
| VCDI |
0 |
0 |
0 |
0 |
17 |
1668 |
7435 |
4462 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13611 |
7999 |
138 |
836 |
108 |
0 |
0 |
0 |
| OW |
0 |
689 |
65 |
1010 |
226 |
0 |
0 |
0 |
| VODI |
0 |
219 |
40 |
1166 |
1242 |
17 |
2 |
0 |
| ODI |
0 |
99 |
3 |
197 |
1110 |
364 |
15 |
1 |
| CDI |
0 |
38 |
1 |
28 |
309 |
1981 |
687 |
49 |
| VCDI |
0 |
0 |
0 |
0 |
29 |
1682 |
7443 |
4462 |
|
Date: 2021-09-20:
| 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 |
13268 |
8058 |
124 |
470 |
48 |
0 |
0 |
0 |
| OW |
0 |
632 |
94 |
981 |
75 |
0 |
0 |
0 |
| VODI |
0 |
151 |
35 |
2074 |
579 |
1 |
0 |
0 |
| ODI |
0 |
118 |
5 |
106 |
1887 |
30 |
10 |
0 |
| CDI |
0 |
0 |
0 |
17 |
461 |
2812 |
95 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
12 |
1868 |
8061 |
3790 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13268 |
7867 |
135 |
1012 |
111 |
0 |
0 |
0 |
| OW |
0 |
679 |
64 |
1034 |
200 |
0 |
0 |
0 |
| VODI |
0 |
257 |
50 |
1255 |
1119 |
7 |
8 |
0 |
| ODI |
0 |
122 |
9 |
295 |
1147 |
354 |
15 |
0 |
| CDI |
0 |
34 |
0 |
52 |
420 |
1672 |
327 |
2 |
| VCDI |
0 |
0 |
0 |
4 |
65 |
2678 |
7816 |
3788 |
|
Date: 2021-09-22:
| 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 |
13192 |
7770 |
118 |
426 |
1 |
0 |
0 |
0 |
| OW |
0 |
591 |
92 |
1300 |
55 |
0 |
0 |
0 |
| VODI |
0 |
230 |
42 |
1774 |
612 |
6 |
0 |
0 |
| ODI |
0 |
135 |
7 |
219 |
1524 |
77 |
16 |
0 |
| CDI |
0 |
0 |
1 |
61 |
722 |
2033 |
108 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
88 |
3599 |
9264 |
1803 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13192 |
7282 |
121 |
889 |
10 |
0 |
0 |
0 |
| OW |
0 |
845 |
67 |
984 |
123 |
0 |
0 |
0 |
| VODI |
0 |
412 |
60 |
1425 |
1049 |
52 |
5 |
0 |
| ODI |
0 |
164 |
10 |
410 |
1141 |
392 |
21 |
0 |
| CDI |
0 |
23 |
2 |
72 |
543 |
1311 |
208 |
7 |
| VCDI |
0 |
0 |
0 |
0 |
136 |
3960 |
9154 |
1796 |
|
Date: 2021-09-24:
| 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 |
12021 |
8200 |
136 |
572 |
48 |
0 |
0 |
0 |
| OW |
0 |
297 |
44 |
1296 |
466 |
0 |
0 |
0 |
| VODI |
0 |
143 |
17 |
732 |
2051 |
19 |
0 |
0 |
| ODI |
0 |
68 |
3 |
94 |
1079 |
610 |
0 |
0 |
| CDI |
0 |
1 |
2 |
42 |
316 |
1758 |
234 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
105 |
2702 |
10782 |
2024 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12021 |
7737 |
121 |
763 |
208 |
0 |
0 |
0 |
| OW |
0 |
611 |
37 |
894 |
564 |
0 |
0 |
0 |
| VODI |
0 |
261 |
37 |
864 |
1834 |
335 |
0 |
0 |
| ODI |
0 |
72 |
5 |
167 |
888 |
1009 |
34 |
0 |
| CDI |
0 |
28 |
2 |
45 |
372 |
1102 |
312 |
0 |
| VCDI |
0 |
0 |
0 |
7 |
199 |
2643 |
10670 |
2024 |
|
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