Validation of sea ice concentration - American sector
Bulletin date: 2022-08-25
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2022-08-19:
| 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 |
13918 |
5891 |
68 |
275 |
31 |
0 |
0 |
0 |
| OW |
0 |
1139 |
54 |
363 |
22 |
0 |
0 |
0 |
| VODI |
0 |
546 |
78 |
2231 |
414 |
0 |
0 |
0 |
| ODI |
0 |
19 |
10 |
943 |
2729 |
751 |
0 |
0 |
| CDI |
0 |
0 |
1 |
4 |
1889 |
3870 |
2239 |
120 |
| VCDI |
0 |
1 |
1 |
0 |
29 |
305 |
3089 |
4836 |
|
...date precedes bulletin
|
Date: 2022-08-21:
| 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 |
13908 |
6074 |
67 |
246 |
32 |
0 |
0 |
0 |
| OW |
0 |
1286 |
71 |
407 |
9 |
0 |
0 |
0 |
| VODI |
0 |
585 |
89 |
2134 |
282 |
0 |
0 |
0 |
| ODI |
0 |
55 |
9 |
829 |
2500 |
674 |
0 |
0 |
| CDI |
0 |
0 |
1 |
25 |
1608 |
4383 |
2272 |
0 |
| VCDI |
0 |
3 |
1 |
12 |
59 |
376 |
3954 |
3915 |
|
...date precedes bulletin
|
Date: 2022-08-23:
| 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 |
13912 |
7890 |
64 |
212 |
10 |
0 |
0 |
0 |
| OW |
3 |
932 |
78 |
315 |
10 |
0 |
0 |
0 |
| VODI |
0 |
531 |
75 |
1968 |
398 |
1 |
0 |
0 |
| ODI |
0 |
0 |
0 |
217 |
2223 |
554 |
0 |
0 |
| CDI |
0 |
0 |
2 |
9 |
1041 |
4592 |
935 |
0 |
| VCDI |
0 |
2 |
1 |
2 |
36 |
498 |
5029 |
4326 |
|
...date precedes bulletin
|
Date: 2022-08-25:
| 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 |
14367 |
8103 |
43 |
168 |
5 |
0 |
0 |
0 |
| OW |
0 |
1113 |
62 |
245 |
4 |
0 |
0 |
0 |
| VODI |
0 |
560 |
73 |
1788 |
277 |
0 |
0 |
0 |
| ODI |
0 |
0 |
1 |
340 |
2168 |
154 |
0 |
0 |
| CDI |
0 |
1 |
0 |
13 |
1732 |
4030 |
608 |
0 |
| VCDI |
0 |
3 |
0 |
6 |
43 |
1940 |
5080 |
2939 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14367 |
8217 |
43 |
179 |
5 |
0 |
0 |
0 |
| OW |
0 |
1062 |
80 |
300 |
4 |
0 |
0 |
0 |
| VODI |
0 |
497 |
55 |
1673 |
259 |
0 |
0 |
0 |
| ODI |
0 |
0 |
1 |
389 |
2155 |
146 |
0 |
0 |
| CDI |
0 |
3 |
0 |
13 |
1766 |
4089 |
634 |
0 |
| VCDI |
0 |
1 |
0 |
6 |
40 |
1889 |
5054 |
2939 |
|
Date: 2022-08-27:
| 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 |
15223 |
7500 |
47 |
129 |
5 |
0 |
0 |
0 |
| OW |
0 |
1321 |
59 |
266 |
6 |
0 |
0 |
0 |
| VODI |
0 |
559 |
70 |
1749 |
95 |
4 |
0 |
0 |
| ODI |
0 |
1 |
0 |
569 |
2003 |
119 |
16 |
0 |
| CDI |
0 |
2 |
0 |
8 |
1883 |
3774 |
581 |
3 |
| VCDI |
0 |
2 |
0 |
4 |
19 |
1028 |
6189 |
2632 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15223 |
7764 |
50 |
136 |
5 |
0 |
0 |
0 |
| OW |
0 |
1088 |
56 |
277 |
3 |
0 |
0 |
0 |
| VODI |
0 |
528 |
70 |
1673 |
97 |
8 |
0 |
0 |
| ODI |
0 |
1 |
0 |
626 |
1902 |
141 |
16 |
0 |
| CDI |
0 |
4 |
0 |
9 |
1986 |
3747 |
610 |
2 |
| VCDI |
0 |
0 |
0 |
4 |
18 |
1029 |
6160 |
2633 |
|
Date: 2022-08-29:
| 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 |
15857 |
8341 |
58 |
150 |
20 |
0 |
0 |
0 |
| OW |
0 |
823 |
83 |
370 |
3 |
0 |
0 |
0 |
| VODI |
0 |
299 |
45 |
1865 |
156 |
2 |
0 |
0 |
| ODI |
0 |
0 |
0 |
244 |
3151 |
104 |
17 |
0 |
| CDI |
0 |
2 |
1 |
6 |
823 |
3320 |
327 |
10 |
| VCDI |
0 |
0 |
0 |
0 |
12 |
2741 |
4614 |
2422 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15847 |
7398 |
56 |
166 |
20 |
0 |
0 |
0 |
| OW |
10 |
1059 |
28 |
237 |
4 |
2 |
0 |
0 |
| VODI |
0 |
979 |
91 |
1116 |
84 |
20 |
3 |
0 |
| ODI |
0 |
27 |
11 |
1014 |
1542 |
94 |
62 |
0 |
| CDI |
0 |
2 |
1 |
101 |
2497 |
3185 |
447 |
27 |
| VCDI |
0 |
0 |
0 |
1 |
18 |
2866 |
4446 |
2405 |
|
Date: 2022-08-31:
| 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 |
15559 |
9244 |
49 |
95 |
16 |
0 |
0 |
0 |
| OW |
9 |
776 |
60 |
285 |
5 |
0 |
0 |
0 |
| VODI |
1 |
446 |
72 |
1490 |
134 |
9 |
0 |
0 |
| ODI |
0 |
0 |
0 |
548 |
2532 |
249 |
7 |
0 |
| CDI |
0 |
1 |
2 |
19 |
998 |
2881 |
343 |
4 |
| VCDI |
0 |
0 |
0 |
0 |
23 |
3445 |
4916 |
1648 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15525 |
8105 |
53 |
147 |
16 |
0 |
0 |
0 |
| OW |
41 |
1050 |
18 |
134 |
8 |
9 |
0 |
0 |
| VODI |
3 |
1184 |
82 |
811 |
115 |
41 |
5 |
0 |
| ODI |
0 |
127 |
28 |
1048 |
1286 |
122 |
52 |
0 |
| CDI |
0 |
1 |
2 |
294 |
2244 |
2932 |
410 |
8 |
| VCDI |
0 |
0 |
0 |
3 |
39 |
3480 |
4799 |
1644 |
|
Date: 2022-09-02:
| 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 |
16596 |
8354 |
51 |
140 |
23 |
1 |
0 |
0 |
| OW |
3 |
918 |
37 |
216 |
5 |
0 |
0 |
0 |
| VODI |
0 |
734 |
81 |
1065 |
129 |
12 |
0 |
0 |
| ODI |
0 |
1 |
1 |
861 |
1823 |
445 |
0 |
0 |
| CDI |
0 |
1 |
2 |
30 |
1363 |
2375 |
389 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
79 |
3725 |
4550 |
1856 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16549 |
7227 |
49 |
173 |
27 |
1 |
0 |
0 |
| OW |
50 |
911 |
15 |
163 |
24 |
14 |
0 |
0 |
| VODI |
0 |
1507 |
58 |
499 |
113 |
59 |
0 |
0 |
| ODI |
0 |
356 |
45 |
987 |
830 |
250 |
2 |
0 |
| CDI |
0 |
7 |
5 |
490 |
2267 |
2286 |
451 |
25 |
| VCDI |
0 |
0 |
0 |
0 |
161 |
3948 |
4486 |
1831 |
|
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