Validation of sea ice concentration
Bulletin date: 2020-04-02
Model vs. observations, sea ice class contingency tables
Date: 2020-03-27:
| 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 |
12585 |
5932 |
927 |
659 |
270 |
36 |
30 |
0 |
| OW |
0 |
34 |
259 |
213 |
137 |
53 |
13 |
0 |
| VODI |
0 |
7 |
162 |
226 |
165 |
151 |
55 |
0 |
| ODI |
0 |
1 |
49 |
127 |
120 |
175 |
92 |
0 |
| CDI |
0 |
1 |
28 |
37 |
163 |
274 |
607 |
25 |
| VCDI |
0 |
0 |
16 |
33 |
86 |
418 |
8885 |
5108 |
|
...date precedes bulletin
|
Date: 2020-03-31:
| 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 |
11655 |
5789 |
1245 |
758 |
539 |
210 |
102 |
0 |
| OW |
0 |
1 |
186 |
133 |
150 |
133 |
73 |
0 |
| VODI |
0 |
0 |
37 |
64 |
170 |
203 |
129 |
0 |
| ODI |
0 |
0 |
12 |
49 |
140 |
257 |
226 |
0 |
| CDI |
0 |
0 |
7 |
27 |
52 |
205 |
638 |
4 |
| VCDI |
0 |
0 |
7 |
7 |
50 |
173 |
7827 |
6901 |
|
...date precedes bulletin
|
Date: 2020-04-02:
| 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 |
11493 |
5689 |
1304 |
811 |
390 |
226 |
133 |
0 |
| OW |
0 |
1 |
142 |
149 |
191 |
147 |
98 |
0 |
| VODI |
0 |
0 |
26 |
88 |
185 |
224 |
155 |
0 |
| ODI |
0 |
0 |
10 |
36 |
101 |
201 |
198 |
0 |
| CDI |
0 |
0 |
4 |
21 |
70 |
207 |
743 |
66 |
| VCDI |
0 |
0 |
9 |
24 |
82 |
225 |
8389 |
6321 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11493 |
5690 |
1366 |
832 |
424 |
267 |
142 |
0 |
| OW |
0 |
0 |
81 |
142 |
175 |
134 |
89 |
0 |
| VODI |
0 |
0 |
27 |
72 |
163 |
222 |
148 |
0 |
| ODI |
0 |
0 |
9 |
37 |
106 |
205 |
209 |
0 |
| CDI |
0 |
0 |
3 |
23 |
65 |
176 |
664 |
62 |
| VCDI |
0 |
0 |
9 |
23 |
86 |
226 |
8464 |
6325 |
|
Date: 2020-04-06:
| 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 |
11711 |
6018 |
831 |
979 |
226 |
125 |
96 |
0 |
| OW |
0 |
75 |
63 |
184 |
145 |
79 |
51 |
0 |
| VODI |
0 |
10 |
32 |
120 |
173 |
159 |
151 |
0 |
| ODI |
0 |
5 |
5 |
43 |
124 |
182 |
266 |
10 |
| CDI |
0 |
0 |
2 |
16 |
60 |
215 |
518 |
81 |
| VCDI |
0 |
0 |
2 |
4 |
20 |
351 |
7595 |
7432 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11711 |
6001 |
796 |
994 |
282 |
198 |
139 |
0 |
| OW |
0 |
89 |
84 |
122 |
91 |
99 |
94 |
0 |
| VODI |
0 |
12 |
39 |
131 |
142 |
113 |
197 |
0 |
| ODI |
0 |
6 |
9 |
59 |
108 |
113 |
217 |
2 |
| CDI |
0 |
0 |
3 |
29 |
79 |
183 |
473 |
40 |
| VCDI |
0 |
0 |
4 |
11 |
46 |
405 |
7557 |
7481 |
|
Date: 2020-04-08:
| 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 |
12289 |
6002 |
817 |
906 |
150 |
59 |
70 |
0 |
| OW |
0 |
50 |
54 |
238 |
133 |
51 |
67 |
0 |
| VODI |
0 |
8 |
12 |
129 |
129 |
95 |
157 |
0 |
| ODI |
0 |
5 |
6 |
73 |
103 |
97 |
256 |
0 |
| CDI |
0 |
0 |
3 |
18 |
63 |
140 |
540 |
65 |
| VCDI |
0 |
0 |
1 |
10 |
22 |
198 |
7748 |
7395 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12289 |
5929 |
770 |
814 |
161 |
87 |
138 |
0 |
| OW |
0 |
106 |
74 |
206 |
75 |
46 |
93 |
0 |
| VODI |
0 |
28 |
40 |
195 |
120 |
77 |
181 |
0 |
| ODI |
0 |
2 |
2 |
103 |
106 |
90 |
237 |
0 |
| CDI |
0 |
0 |
5 |
41 |
88 |
120 |
535 |
29 |
| VCDI |
0 |
0 |
2 |
15 |
50 |
220 |
7654 |
7431 |
|
Date: 2020-04-10:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
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