Validation of sea ice concentration
Bulletin date: 2022-09-15
Model vs. observations, sea ice class contingency tables
Date: 2022-09-09:
| 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 |
24347 |
5501 |
568 |
506 |
119 |
39 |
5 |
0 |
| OW |
0 |
11 |
22 |
173 |
93 |
20 |
12 |
0 |
| VODI |
0 |
1 |
12 |
113 |
126 |
43 |
34 |
0 |
| ODI |
0 |
0 |
4 |
33 |
154 |
295 |
231 |
0 |
| CDI |
0 |
0 |
0 |
60 |
89 |
263 |
1838 |
803 |
| VCDI |
0 |
0 |
0 |
39 |
43 |
70 |
1224 |
1268 |
|
...date precedes bulletin
|
Date: 2022-09-13:
| 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 |
24255 |
5135 |
925 |
343 |
260 |
24 |
2 |
0 |
| OW |
0 |
0 |
25 |
111 |
121 |
32 |
7 |
0 |
| VODI |
0 |
0 |
10 |
59 |
177 |
94 |
11 |
0 |
| ODI |
0 |
0 |
4 |
32 |
96 |
383 |
154 |
0 |
| CDI |
0 |
0 |
0 |
29 |
91 |
259 |
1599 |
823 |
| VCDI |
0 |
0 |
0 |
8 |
17 |
20 |
1071 |
1982 |
|
...date precedes bulletin
|
Date: 2022-09-15:
| 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 |
24373 |
5176 |
780 |
372 |
139 |
15 |
1 |
0 |
| OW |
0 |
0 |
44 |
165 |
74 |
36 |
2 |
0 |
| VODI |
0 |
0 |
20 |
110 |
143 |
51 |
21 |
0 |
| ODI |
0 |
0 |
8 |
43 |
126 |
186 |
130 |
0 |
| CDI |
0 |
0 |
0 |
15 |
72 |
497 |
1526 |
741 |
| VCDI |
0 |
0 |
0 |
6 |
21 |
21 |
1128 |
2117 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24373 |
5176 |
788 |
392 |
146 |
22 |
2 |
0 |
| OW |
0 |
0 |
40 |
136 |
82 |
37 |
2 |
0 |
| VODI |
0 |
0 |
16 |
107 |
118 |
48 |
20 |
0 |
| ODI |
0 |
0 |
8 |
50 |
125 |
137 |
98 |
0 |
| CDI |
0 |
0 |
0 |
20 |
82 |
524 |
1594 |
811 |
| VCDI |
0 |
0 |
0 |
6 |
22 |
38 |
1092 |
2047 |
|
Date: 2022-09-19:
| 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 |
24011 |
5324 |
964 |
372 |
85 |
17 |
0 |
0 |
| OW |
0 |
0 |
135 |
85 |
48 |
16 |
1 |
0 |
| VODI |
0 |
0 |
79 |
100 |
124 |
95 |
29 |
0 |
| ODI |
0 |
0 |
8 |
51 |
91 |
246 |
213 |
0 |
| CDI |
0 |
0 |
2 |
0 |
24 |
111 |
1412 |
335 |
| VCDI |
0 |
0 |
10 |
2 |
6 |
7 |
1098 |
3058 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24011 |
5321 |
922 |
342 |
104 |
25 |
0 |
0 |
| OW |
0 |
3 |
119 |
81 |
32 |
29 |
5 |
0 |
| VODI |
0 |
0 |
125 |
108 |
63 |
65 |
22 |
0 |
| ODI |
0 |
0 |
18 |
64 |
95 |
77 |
57 |
0 |
| CDI |
0 |
0 |
3 |
13 |
64 |
207 |
1282 |
391 |
| VCDI |
0 |
0 |
11 |
2 |
20 |
89 |
1387 |
3002 |
|
Date: 2022-09-21:
| 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 |
23831 |
5439 |
1061 |
210 |
176 |
56 |
22 |
0 |
| OW |
0 |
1 |
89 |
50 |
57 |
49 |
9 |
0 |
| VODI |
0 |
0 |
116 |
75 |
57 |
117 |
69 |
0 |
| ODI |
0 |
0 |
40 |
41 |
51 |
148 |
240 |
0 |
| CDI |
0 |
0 |
9 |
16 |
49 |
139 |
906 |
33 |
| VCDI |
0 |
0 |
11 |
2 |
34 |
42 |
1645 |
3269 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
23831 |
5424 |
974 |
202 |
139 |
62 |
23 |
0 |
| OW |
0 |
16 |
112 |
33 |
58 |
23 |
10 |
0 |
| VODI |
0 |
0 |
128 |
65 |
70 |
48 |
37 |
0 |
| ODI |
0 |
0 |
85 |
63 |
59 |
108 |
55 |
0 |
| CDI |
0 |
0 |
15 |
29 |
47 |
179 |
776 |
48 |
| VCDI |
0 |
0 |
12 |
2 |
51 |
131 |
1990 |
3254 |
|
Date: 2022-09-23:
| 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 |
23458 |
5616 |
1346 |
239 |
180 |
60 |
5 |
0 |
| OW |
0 |
1 |
111 |
47 |
54 |
57 |
16 |
0 |
| VODI |
0 |
0 |
65 |
45 |
57 |
170 |
27 |
0 |
| ODI |
0 |
0 |
26 |
20 |
69 |
236 |
77 |
0 |
| CDI |
0 |
0 |
2 |
11 |
36 |
215 |
360 |
5 |
| VCDI |
0 |
0 |
0 |
19 |
81 |
129 |
2347 |
2972 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
23458 |
5616 |
1211 |
236 |
150 |
52 |
4 |
0 |
| OW |
0 |
1 |
128 |
20 |
42 |
28 |
8 |
0 |
| VODI |
0 |
0 |
104 |
37 |
49 |
80 |
16 |
0 |
| ODI |
0 |
0 |
67 |
30 |
73 |
188 |
42 |
0 |
| CDI |
0 |
0 |
40 |
37 |
63 |
214 |
235 |
0 |
| VCDI |
0 |
0 |
0 |
21 |
100 |
305 |
2527 |
2977 |
|
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