Validation of sea ice concentration - American sector
Bulletin date: 2022-05-05
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2022-04-29:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
1 |
0 |
0 |
3 |
1 |
0 |
0 |
| VODI |
0 |
6 |
0 |
8 |
11 |
5 |
1 |
0 |
| ODI |
0 |
14 |
5 |
18 |
29 |
13 |
24 |
0 |
| CDI |
0 |
16 |
7 |
37 |
113 |
139 |
176 |
10 |
| VCDI |
0 |
15 |
21 |
94 |
625 |
1793 |
16066 |
26615 |
|
...date precedes bulletin
|
Date: 2022-05-01:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
1 |
1 |
0 |
0 |
| VODI |
0 |
5 |
2 |
8 |
1 |
6 |
3 |
0 |
| ODI |
0 |
8 |
3 |
19 |
21 |
24 |
40 |
0 |
| CDI |
0 |
10 |
17 |
73 |
135 |
151 |
319 |
0 |
| VCDI |
0 |
12 |
21 |
166 |
725 |
2214 |
16284 |
25597 |
|
...date precedes bulletin
|
Date: 2022-05-03:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
4 |
1 |
9 |
13 |
4 |
3 |
0 |
| ODI |
0 |
1 |
6 |
52 |
62 |
33 |
25 |
0 |
| CDI |
0 |
9 |
14 |
124 |
269 |
368 |
292 |
29 |
| VCDI |
0 |
17 |
37 |
188 |
758 |
2014 |
17266 |
24268 |
|
...date precedes bulletin
|
Date: 2022-05-05:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
4 |
0 |
0 |
0 |
| VODI |
0 |
3 |
13 |
12 |
15 |
0 |
0 |
0 |
| ODI |
0 |
3 |
12 |
58 |
75 |
29 |
0 |
0 |
| CDI |
0 |
10 |
11 |
101 |
229 |
332 |
173 |
38 |
| VCDI |
0 |
6 |
53 |
287 |
805 |
2289 |
19792 |
21516 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
1 |
0 |
0 |
2 |
0 |
0 |
0 |
| VODI |
0 |
2 |
13 |
13 |
19 |
2 |
0 |
0 |
| ODI |
0 |
1 |
10 |
63 |
65 |
43 |
0 |
0 |
| CDI |
0 |
12 |
12 |
100 |
255 |
328 |
177 |
40 |
| VCDI |
0 |
6 |
54 |
282 |
787 |
2277 |
19788 |
21514 |
|
Date: 2022-05-07:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
0 |
| VODI |
0 |
6 |
4 |
12 |
3 |
4 |
0 |
0 |
| ODI |
0 |
8 |
21 |
48 |
32 |
40 |
35 |
0 |
| CDI |
0 |
15 |
28 |
147 |
256 |
297 |
359 |
51 |
| VCDI |
0 |
33 |
61 |
311 |
847 |
2857 |
19607 |
20783 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
1 |
1 |
0 |
0 |
| VODI |
0 |
5 |
7 |
11 |
9 |
6 |
0 |
0 |
| ODI |
0 |
8 |
16 |
52 |
33 |
48 |
37 |
0 |
| CDI |
0 |
15 |
27 |
147 |
246 |
282 |
345 |
57 |
| VCDI |
0 |
34 |
64 |
308 |
850 |
2861 |
19619 |
20777 |
|
Date: 2022-05-09:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
4 |
6 |
33 |
59 |
59 |
9 |
0 |
| ODI |
0 |
13 |
23 |
67 |
192 |
159 |
27 |
0 |
| CDI |
0 |
28 |
45 |
237 |
513 |
609 |
282 |
13 |
| VCDI |
0 |
22 |
139 |
309 |
1403 |
5218 |
17104 |
19293 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
2 |
5 |
0 |
| VODI |
0 |
0 |
2 |
27 |
64 |
70 |
16 |
0 |
| ODI |
0 |
7 |
5 |
31 |
145 |
131 |
77 |
0 |
| CDI |
0 |
23 |
34 |
151 |
366 |
470 |
422 |
74 |
| VCDI |
0 |
37 |
172 |
437 |
1592 |
5372 |
16902 |
19232 |
|
Date: 2022-05-11:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
8 |
5 |
1 |
0 |
0 |
| VODI |
0 |
10 |
6 |
69 |
127 |
108 |
7 |
0 |
| ODI |
0 |
17 |
3 |
51 |
227 |
228 |
27 |
0 |
| CDI |
0 |
15 |
38 |
194 |
424 |
819 |
200 |
36 |
| VCDI |
0 |
114 |
72 |
381 |
1264 |
6189 |
17599 |
17627 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
7 |
16 |
20 |
4 |
0 |
| VODI |
0 |
4 |
3 |
57 |
89 |
133 |
13 |
0 |
| ODI |
0 |
15 |
6 |
52 |
214 |
250 |
35 |
4 |
| CDI |
0 |
16 |
23 |
122 |
406 |
711 |
189 |
63 |
| VCDI |
0 |
121 |
87 |
465 |
1322 |
6231 |
17592 |
17596 |
|
Date: 2022-05-13:
| 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 |
0 |
1 |
1 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
7 |
14 |
22 |
26 |
21 |
9 |
0 |
| VODI |
0 |
23 |
7 |
69 |
118 |
85 |
54 |
0 |
| ODI |
0 |
18 |
6 |
38 |
129 |
201 |
157 |
0 |
| CDI |
0 |
34 |
37 |
198 |
272 |
531 |
813 |
27 |
| VCDI |
0 |
142 |
97 |
387 |
1008 |
5500 |
17809 |
18005 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
2 |
1 |
6 |
3 |
3 |
2 |
0 |
| OW |
0 |
4 |
6 |
6 |
12 |
35 |
19 |
0 |
| VODI |
0 |
23 |
16 |
76 |
98 |
80 |
71 |
0 |
| ODI |
0 |
13 |
5 |
51 |
134 |
163 |
195 |
5 |
| CDI |
0 |
26 |
28 |
119 |
236 |
536 |
751 |
73 |
| VCDI |
0 |
157 |
106 |
456 |
1070 |
5521 |
17804 |
17954 |
|
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