Validation of sea ice concentration - American sector
Bulletin date: 2021-05-06
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2021-04-30:
| 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 |
10 |
28 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
44 |
67 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
58 |
81 |
8 |
0 |
0 |
| ODI |
0 |
0 |
0 |
36 |
154 |
57 |
6 |
0 |
| CDI |
0 |
0 |
0 |
25 |
397 |
258 |
212 |
21 |
| VCDI |
0 |
0 |
0 |
22 |
343 |
2922 |
12975 |
28142 |
|
...date precedes bulletin
|
Date: 2021-05-02:
| 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 |
0 |
5 |
2 |
42 |
27 |
0 |
0 |
0 |
| OW |
0 |
38 |
3 |
82 |
34 |
0 |
0 |
0 |
| VODI |
0 |
39 |
3 |
41 |
54 |
7 |
0 |
0 |
| ODI |
0 |
13 |
2 |
30 |
117 |
36 |
35 |
5 |
| CDI |
0 |
0 |
1 |
17 |
326 |
271 |
199 |
121 |
| VCDI |
0 |
0 |
0 |
10 |
461 |
2425 |
10586 |
30834 |
|
...date precedes bulletin
|
Date: 2021-05-04:
| 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 |
52 |
4 |
54 |
50 |
0 |
0 |
0 |
| OW |
0 |
114 |
6 |
63 |
48 |
0 |
0 |
0 |
| VODI |
0 |
44 |
3 |
10 |
100 |
9 |
0 |
0 |
| ODI |
0 |
0 |
0 |
3 |
125 |
54 |
27 |
0 |
| CDI |
0 |
0 |
0 |
9 |
406 |
329 |
130 |
25 |
| VCDI |
0 |
1 |
1 |
23 |
321 |
2305 |
10119 |
31431 |
|
...date precedes bulletin
|
Date: 2021-05-06:
| 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 |
145 |
14 |
63 |
43 |
0 |
0 |
0 |
| OW |
0 |
122 |
2 |
25 |
43 |
2 |
0 |
0 |
| VODI |
0 |
1 |
0 |
11 |
96 |
23 |
2 |
0 |
| ODI |
0 |
1 |
0 |
13 |
121 |
66 |
22 |
0 |
| CDI |
0 |
7 |
2 |
37 |
414 |
281 |
215 |
13 |
| VCDI |
0 |
4 |
2 |
21 |
400 |
2148 |
11898 |
29609 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
185 |
15 |
68 |
51 |
0 |
0 |
0 |
| OW |
0 |
82 |
1 |
21 |
39 |
0 |
0 |
0 |
| VODI |
0 |
1 |
0 |
11 |
87 |
22 |
0 |
0 |
| ODI |
0 |
2 |
0 |
12 |
130 |
72 |
9 |
0 |
| CDI |
0 |
6 |
2 |
37 |
408 |
237 |
240 |
12 |
| VCDI |
0 |
4 |
2 |
21 |
402 |
2189 |
11888 |
29610 |
|
Date: 2021-05-08:
| 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 |
235 |
9 |
70 |
35 |
0 |
0 |
0 |
| OW |
0 |
53 |
1 |
29 |
48 |
4 |
0 |
0 |
| VODI |
0 |
0 |
0 |
13 |
129 |
36 |
8 |
0 |
| ODI |
0 |
0 |
0 |
19 |
192 |
86 |
32 |
0 |
| CDI |
0 |
4 |
1 |
28 |
422 |
429 |
384 |
0 |
| VCDI |
0 |
3 |
0 |
31 |
530 |
2682 |
12336 |
28017 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
286 |
9 |
75 |
36 |
0 |
0 |
0 |
| OW |
0 |
2 |
1 |
24 |
46 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
15 |
140 |
36 |
1 |
0 |
| ODI |
0 |
0 |
0 |
23 |
185 |
88 |
21 |
0 |
| CDI |
0 |
5 |
1 |
28 |
412 |
429 |
396 |
1 |
| VCDI |
0 |
2 |
0 |
25 |
537 |
2684 |
12342 |
28016 |
|
Date: 2021-05-10:
| 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 |
0 |
261 |
13 |
83 |
38 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
40 |
49 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
63 |
186 |
9 |
0 |
0 |
| ODI |
0 |
5 |
1 |
54 |
288 |
54 |
11 |
0 |
| CDI |
0 |
2 |
0 |
67 |
506 |
745 |
212 |
0 |
| VCDI |
0 |
0 |
0 |
13 |
390 |
2268 |
13154 |
27354 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
261 |
13 |
99 |
49 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
9 |
72 |
4 |
0 |
0 |
| VODI |
0 |
0 |
0 |
33 |
173 |
46 |
8 |
0 |
| ODI |
0 |
0 |
0 |
39 |
172 |
99 |
39 |
0 |
| CDI |
0 |
7 |
1 |
98 |
432 |
549 |
575 |
11 |
| VCDI |
0 |
0 |
0 |
42 |
559 |
2378 |
12755 |
27343 |
|
Date: 2021-05-12:
| 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 |
0 |
247 |
13 |
111 |
31 |
0 |
0 |
0 |
| OW |
0 |
0 |
1 |
57 |
95 |
2 |
0 |
0 |
| VODI |
0 |
4 |
1 |
67 |
205 |
25 |
0 |
0 |
| ODI |
0 |
8 |
0 |
41 |
251 |
137 |
10 |
0 |
| CDI |
0 |
6 |
3 |
71 |
386 |
596 |
236 |
25 |
| VCDI |
0 |
0 |
0 |
92 |
490 |
3262 |
12843 |
26550 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
247 |
13 |
111 |
68 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
10 |
83 |
18 |
0 |
0 |
| VODI |
0 |
1 |
2 |
64 |
195 |
55 |
3 |
0 |
| ODI |
0 |
8 |
0 |
68 |
143 |
102 |
46 |
0 |
| CDI |
0 |
8 |
3 |
72 |
416 |
557 |
336 |
72 |
| VCDI |
0 |
1 |
0 |
114 |
553 |
3290 |
12704 |
26503 |
|
Date: 2021-05-14:
| 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 |
0 |
237 |
16 |
123 |
16 |
0 |
0 |
0 |
| OW |
0 |
4 |
3 |
66 |
97 |
3 |
0 |
0 |
| VODI |
0 |
11 |
2 |
74 |
215 |
30 |
0 |
0 |
| ODI |
0 |
15 |
1 |
67 |
205 |
188 |
5 |
0 |
| CDI |
0 |
36 |
13 |
114 |
474 |
673 |
260 |
3 |
| VCDI |
0 |
21 |
2 |
111 |
646 |
3675 |
12011 |
26449 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
238 |
16 |
142 |
77 |
4 |
0 |
0 |
| OW |
0 |
5 |
3 |
25 |
68 |
15 |
0 |
0 |
| VODI |
0 |
16 |
2 |
67 |
202 |
89 |
9 |
0 |
| ODI |
0 |
21 |
4 |
78 |
159 |
169 |
86 |
0 |
| CDI |
0 |
33 |
8 |
82 |
396 |
550 |
215 |
0 |
| VCDI |
0 |
11 |
4 |
161 |
751 |
3742 |
11966 |
26452 |
|
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