Validation of sea ice concentration
Bulletin date: 2022-01-13
Model vs. observations, sea ice class contingency tables
Date: 2022-01-07:
| 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 |
13188 |
5692 |
769 |
407 |
252 |
108 |
81 |
4 |
| OW |
0 |
45 |
144 |
122 |
89 |
107 |
50 |
0 |
| VODI |
0 |
12 |
110 |
137 |
98 |
143 |
76 |
0 |
| ODI |
0 |
0 |
49 |
74 |
98 |
159 |
135 |
0 |
| CDI |
0 |
0 |
16 |
70 |
97 |
231 |
449 |
10 |
| VCDI |
0 |
0 |
7 |
34 |
130 |
454 |
7160 |
7352 |
|
...date precedes bulletin
|
Date: 2022-01-11:
| 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 |
13402 |
5834 |
947 |
357 |
168 |
52 |
29 |
0 |
| OW |
0 |
11 |
179 |
121 |
87 |
42 |
20 |
0 |
| VODI |
0 |
3 |
136 |
137 |
142 |
85 |
41 |
0 |
| ODI |
0 |
0 |
78 |
114 |
123 |
145 |
106 |
0 |
| CDI |
0 |
0 |
20 |
87 |
114 |
229 |
350 |
13 |
| VCDI |
0 |
0 |
5 |
47 |
104 |
587 |
6156 |
8088 |
|
...date precedes bulletin
|
Date: 2022-01-13:
| 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 |
13900 |
6046 |
535 |
173 |
70 |
27 |
33 |
0 |
| OW |
0 |
136 |
185 |
97 |
59 |
30 |
19 |
0 |
| VODI |
0 |
54 |
159 |
151 |
135 |
113 |
42 |
0 |
| ODI |
0 |
10 |
89 |
131 |
152 |
170 |
115 |
0 |
| CDI |
0 |
0 |
38 |
81 |
138 |
210 |
526 |
40 |
| VCDI |
0 |
0 |
17 |
119 |
182 |
403 |
8460 |
5314 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13900 |
6063 |
565 |
192 |
77 |
30 |
28 |
0 |
| OW |
0 |
111 |
161 |
84 |
53 |
30 |
29 |
0 |
| VODI |
0 |
62 |
154 |
152 |
132 |
106 |
40 |
0 |
| ODI |
0 |
9 |
90 |
103 |
153 |
174 |
125 |
0 |
| CDI |
0 |
1 |
37 |
101 |
135 |
201 |
525 |
49 |
| VCDI |
0 |
0 |
16 |
120 |
186 |
412 |
8448 |
5305 |
|
Date: 2022-01-17:
| 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 |
13065 |
5938 |
843 |
402 |
135 |
49 |
3 |
0 |
| OW |
0 |
67 |
150 |
181 |
109 |
45 |
26 |
0 |
| VODI |
0 |
34 |
140 |
227 |
149 |
98 |
19 |
0 |
| ODI |
0 |
9 |
72 |
123 |
179 |
203 |
97 |
8 |
| CDI |
0 |
8 |
25 |
83 |
109 |
322 |
404 |
87 |
| VCDI |
0 |
13 |
51 |
179 |
161 |
600 |
7152 |
6594 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13065 |
5879 |
808 |
389 |
166 |
62 |
10 |
0 |
| OW |
0 |
68 |
115 |
124 |
83 |
50 |
26 |
0 |
| VODI |
0 |
60 |
130 |
151 |
117 |
107 |
48 |
0 |
| ODI |
0 |
21 |
90 |
162 |
140 |
204 |
98 |
36 |
| CDI |
0 |
14 |
51 |
100 |
116 |
235 |
332 |
121 |
| VCDI |
0 |
27 |
87 |
269 |
220 |
659 |
7187 |
6532 |
|
Date: 2022-01-19:
| 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 |
13100 |
5942 |
754 |
293 |
115 |
65 |
3 |
0 |
| OW |
0 |
50 |
179 |
164 |
95 |
78 |
22 |
0 |
| VODI |
0 |
21 |
125 |
179 |
180 |
141 |
43 |
0 |
| ODI |
0 |
10 |
42 |
87 |
164 |
217 |
106 |
0 |
| CDI |
0 |
16 |
24 |
53 |
141 |
269 |
389 |
9 |
| VCDI |
0 |
41 |
53 |
89 |
298 |
671 |
8845 |
5086 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13100 |
5895 |
731 |
277 |
115 |
113 |
11 |
0 |
| OW |
0 |
60 |
119 |
117 |
75 |
87 |
32 |
0 |
| VODI |
0 |
37 |
111 |
146 |
125 |
116 |
86 |
0 |
| ODI |
0 |
16 |
67 |
100 |
167 |
213 |
132 |
0 |
| CDI |
0 |
14 |
62 |
65 |
135 |
238 |
315 |
22 |
| VCDI |
0 |
58 |
87 |
160 |
376 |
674 |
8832 |
5073 |
|
Date: 2022-01-21:
| 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 |
12909 |
5815 |
891 |
372 |
207 |
58 |
6 |
0 |
| OW |
0 |
40 |
168 |
137 |
136 |
71 |
29 |
0 |
| VODI |
0 |
10 |
123 |
163 |
224 |
132 |
74 |
0 |
| ODI |
0 |
1 |
51 |
96 |
202 |
228 |
90 |
0 |
| CDI |
0 |
0 |
29 |
74 |
147 |
310 |
394 |
2 |
| VCDI |
0 |
0 |
72 |
96 |
253 |
556 |
8629 |
5364 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12909 |
5780 |
851 |
411 |
240 |
86 |
12 |
0 |
| OW |
0 |
46 |
124 |
73 |
113 |
104 |
49 |
0 |
| VODI |
0 |
26 |
108 |
97 |
156 |
159 |
114 |
0 |
| ODI |
0 |
13 |
85 |
112 |
192 |
204 |
148 |
0 |
| CDI |
0 |
1 |
64 |
87 |
151 |
235 |
411 |
8 |
| VCDI |
0 |
0 |
102 |
158 |
317 |
567 |
8488 |
5358 |
|
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