Validation of sea ice concentration
Bulletin date: 2022-03-10
Model vs. observations, sea ice class contingency tables
Date: 2022-03-04:
| 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 |
13164 |
5666 |
677 |
343 |
136 |
92 |
125 |
0 |
| OW |
0 |
82 |
142 |
111 |
111 |
51 |
33 |
0 |
| VODI |
0 |
27 |
110 |
152 |
172 |
133 |
71 |
0 |
| ODI |
0 |
12 |
72 |
103 |
137 |
198 |
162 |
0 |
| CDI |
0 |
7 |
78 |
98 |
169 |
331 |
454 |
16 |
| VCDI |
0 |
26 |
95 |
161 |
225 |
815 |
6904 |
6698 |
|
...date precedes bulletin
|
Date: 2022-03-08:
| 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 |
13278 |
5649 |
778 |
218 |
142 |
73 |
85 |
0 |
| OW |
0 |
83 |
195 |
115 |
72 |
45 |
31 |
0 |
| VODI |
0 |
18 |
171 |
144 |
130 |
103 |
56 |
0 |
| ODI |
0 |
0 |
57 |
130 |
143 |
226 |
109 |
0 |
| CDI |
0 |
0 |
28 |
97 |
171 |
521 |
651 |
0 |
| VCDI |
0 |
0 |
37 |
126 |
195 |
427 |
7085 |
6770 |
|
...date precedes bulletin
|
Date: 2022-03-10:
| 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 |
13389 |
5664 |
842 |
223 |
98 |
45 |
67 |
0 |
| OW |
0 |
75 |
198 |
136 |
48 |
23 |
33 |
0 |
| VODI |
0 |
29 |
176 |
172 |
103 |
59 |
59 |
0 |
| ODI |
0 |
13 |
63 |
133 |
135 |
141 |
142 |
0 |
| CDI |
0 |
8 |
42 |
115 |
181 |
275 |
580 |
5 |
| VCDI |
0 |
2 |
116 |
183 |
269 |
507 |
8005 |
5805 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13389 |
5680 |
865 |
238 |
110 |
48 |
72 |
0 |
| OW |
0 |
64 |
200 |
121 |
50 |
23 |
33 |
0 |
| VODI |
0 |
29 |
153 |
183 |
101 |
61 |
52 |
0 |
| ODI |
0 |
10 |
65 |
131 |
121 |
140 |
140 |
0 |
| CDI |
0 |
6 |
41 |
113 |
175 |
252 |
545 |
6 |
| VCDI |
0 |
2 |
113 |
176 |
277 |
526 |
8044 |
5804 |
|
Date: 2022-03-14:
| 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 |
14211 |
5807 |
576 |
170 |
70 |
16 |
64 |
0 |
| OW |
0 |
127 |
250 |
113 |
52 |
12 |
32 |
0 |
| VODI |
0 |
33 |
154 |
172 |
127 |
52 |
92 |
0 |
| ODI |
0 |
12 |
62 |
161 |
157 |
117 |
175 |
5 |
| CDI |
0 |
15 |
14 |
164 |
266 |
307 |
603 |
19 |
| VCDI |
0 |
70 |
69 |
365 |
359 |
1053 |
7103 |
4933 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14211 |
5657 |
418 |
134 |
63 |
17 |
89 |
0 |
| OW |
0 |
192 |
222 |
79 |
39 |
15 |
30 |
0 |
| VODI |
0 |
70 |
208 |
132 |
96 |
26 |
102 |
0 |
| ODI |
0 |
28 |
115 |
139 |
141 |
94 |
141 |
2 |
| CDI |
0 |
16 |
84 |
203 |
301 |
359 |
566 |
60 |
| VCDI |
0 |
101 |
78 |
458 |
391 |
1046 |
7141 |
4895 |
|
Date: 2022-03-16:
| 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 |
14151 |
5785 |
921 |
221 |
79 |
27 |
53 |
0 |
| OW |
0 |
48 |
370 |
118 |
65 |
31 |
42 |
0 |
| VODI |
0 |
13 |
199 |
176 |
108 |
63 |
128 |
0 |
| ODI |
0 |
6 |
82 |
159 |
163 |
113 |
154 |
2 |
| CDI |
0 |
10 |
44 |
151 |
164 |
233 |
697 |
28 |
| VCDI |
0 |
16 |
143 |
484 |
303 |
594 |
7407 |
4608 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14151 |
5679 |
734 |
158 |
57 |
26 |
94 |
0 |
| OW |
0 |
109 |
304 |
120 |
42 |
18 |
36 |
0 |
| VODI |
0 |
32 |
292 |
167 |
106 |
38 |
104 |
0 |
| ODI |
0 |
12 |
157 |
176 |
158 |
134 |
163 |
0 |
| CDI |
0 |
12 |
111 |
163 |
197 |
241 |
699 |
41 |
| VCDI |
0 |
34 |
161 |
525 |
322 |
604 |
7385 |
4597 |
|
Date: 2022-03-18:
| 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 |
14504 |
5621 |
618 |
189 |
94 |
25 |
37 |
0 |
| OW |
0 |
260 |
262 |
140 |
63 |
25 |
44 |
0 |
| VODI |
0 |
66 |
211 |
293 |
105 |
66 |
123 |
0 |
| ODI |
0 |
15 |
121 |
216 |
146 |
93 |
192 |
0 |
| CDI |
0 |
18 |
73 |
169 |
183 |
190 |
636 |
52 |
| VCDI |
0 |
59 |
337 |
440 |
328 |
546 |
7477 |
4122 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14504 |
5596 |
546 |
167 |
83 |
27 |
71 |
0 |
| OW |
0 |
229 |
225 |
110 |
39 |
18 |
43 |
0 |
| VODI |
0 |
102 |
238 |
313 |
99 |
63 |
108 |
0 |
| ODI |
0 |
22 |
161 |
226 |
164 |
98 |
205 |
0 |
| CDI |
0 |
17 |
105 |
180 |
202 |
195 |
657 |
24 |
| VCDI |
0 |
73 |
347 |
451 |
332 |
544 |
7425 |
4150 |
|
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