Validation of sea ice concentration
Bulletin date: 2022-02-03
Model vs. observations, sea ice class contingency tables
Date: 2022-01-28:
| 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 |
12591 |
5972 |
1123 |
435 |
140 |
39 |
4 |
0 |
| OW |
0 |
53 |
123 |
199 |
110 |
65 |
7 |
0 |
| VODI |
0 |
54 |
104 |
245 |
225 |
213 |
32 |
0 |
| ODI |
0 |
48 |
43 |
207 |
168 |
280 |
143 |
4 |
| CDI |
0 |
33 |
35 |
194 |
204 |
322 |
458 |
6 |
| VCDI |
0 |
49 |
236 |
572 |
533 |
1077 |
8728 |
3085 |
|
...date precedes bulletin
|
Date: 2022-02-01:
| 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 |
12763 |
6146 |
760 |
536 |
97 |
16 |
13 |
0 |
| OW |
0 |
43 |
116 |
184 |
95 |
36 |
35 |
0 |
| VODI |
0 |
24 |
75 |
227 |
145 |
91 |
78 |
0 |
| ODI |
0 |
13 |
29 |
194 |
189 |
195 |
136 |
20 |
| CDI |
0 |
6 |
35 |
96 |
232 |
393 |
509 |
98 |
| VCDI |
0 |
2 |
69 |
163 |
274 |
1022 |
8129 |
4875 |
|
...date precedes bulletin
|
Date: 2022-02-03:
| 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 |
12800 |
5929 |
809 |
421 |
171 |
63 |
20 |
0 |
| OW |
0 |
91 |
120 |
104 |
105 |
68 |
28 |
0 |
| VODI |
0 |
37 |
131 |
108 |
147 |
118 |
74 |
0 |
| ODI |
0 |
1 |
74 |
63 |
143 |
196 |
164 |
8 |
| CDI |
0 |
0 |
63 |
50 |
121 |
301 |
624 |
119 |
| VCDI |
0 |
0 |
58 |
203 |
251 |
808 |
8412 |
5156 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12800 |
5931 |
805 |
429 |
194 |
76 |
24 |
0 |
| OW |
0 |
84 |
115 |
93 |
86 |
74 |
33 |
0 |
| VODI |
0 |
42 |
133 |
104 |
148 |
127 |
64 |
0 |
| ODI |
0 |
1 |
75 |
63 |
120 |
180 |
155 |
8 |
| CDI |
0 |
0 |
61 |
52 |
133 |
259 |
626 |
109 |
| VCDI |
0 |
0 |
66 |
208 |
257 |
838 |
8420 |
5166 |
|
Date: 2022-02-07:
| 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 |
13468 |
5819 |
920 |
315 |
58 |
57 |
16 |
0 |
| OW |
0 |
96 |
183 |
149 |
32 |
51 |
15 |
0 |
| VODI |
0 |
26 |
183 |
189 |
47 |
127 |
37 |
0 |
| ODI |
0 |
3 |
102 |
246 |
86 |
233 |
123 |
3 |
| CDI |
0 |
5 |
124 |
226 |
68 |
208 |
519 |
84 |
| VCDI |
0 |
0 |
127 |
212 |
93 |
491 |
7384 |
6034 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13468 |
5673 |
831 |
278 |
51 |
60 |
26 |
0 |
| OW |
0 |
142 |
128 |
118 |
31 |
50 |
23 |
0 |
| VODI |
0 |
84 |
142 |
171 |
47 |
96 |
48 |
0 |
| ODI |
0 |
28 |
95 |
220 |
81 |
200 |
111 |
4 |
| CDI |
0 |
9 |
129 |
176 |
47 |
193 |
349 |
88 |
| VCDI |
0 |
13 |
314 |
374 |
127 |
568 |
7537 |
6029 |
|
Date: 2022-02-09:
| 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 |
13392 |
5918 |
850 |
249 |
116 |
80 |
21 |
0 |
| OW |
0 |
148 |
216 |
76 |
45 |
56 |
13 |
0 |
| VODI |
0 |
80 |
215 |
132 |
115 |
137 |
36 |
0 |
| ODI |
0 |
33 |
107 |
138 |
180 |
227 |
94 |
14 |
| CDI |
0 |
28 |
102 |
165 |
134 |
256 |
384 |
55 |
| VCDI |
0 |
80 |
197 |
240 |
336 |
864 |
7759 |
4871 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13392 |
5795 |
763 |
217 |
119 |
84 |
41 |
0 |
| OW |
0 |
165 |
190 |
89 |
43 |
55 |
21 |
0 |
| VODI |
0 |
99 |
177 |
113 |
104 |
177 |
48 |
0 |
| ODI |
0 |
51 |
103 |
124 |
155 |
198 |
111 |
20 |
| CDI |
0 |
39 |
111 |
125 |
130 |
204 |
288 |
60 |
| VCDI |
0 |
138 |
343 |
332 |
375 |
902 |
7798 |
4860 |
|
Date: 2022-02-11:
| 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 |
13349 |
5815 |
779 |
287 |
125 |
59 |
15 |
0 |
| OW |
0 |
200 |
198 |
106 |
60 |
34 |
18 |
0 |
| VODI |
0 |
146 |
217 |
211 |
185 |
154 |
36 |
0 |
| ODI |
0 |
76 |
117 |
187 |
206 |
185 |
122 |
0 |
| CDI |
0 |
50 |
91 |
185 |
217 |
230 |
418 |
6 |
| VCDI |
0 |
86 |
217 |
269 |
333 |
863 |
8279 |
4028 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13349 |
5708 |
731 |
281 |
153 |
75 |
35 |
0 |
| OW |
0 |
217 |
159 |
82 |
67 |
49 |
24 |
0 |
| VODI |
0 |
133 |
194 |
160 |
175 |
174 |
58 |
0 |
| ODI |
0 |
66 |
105 |
128 |
167 |
157 |
147 |
1 |
| CDI |
0 |
48 |
91 |
151 |
136 |
196 |
385 |
6 |
| VCDI |
0 |
201 |
339 |
443 |
428 |
874 |
8239 |
4027 |
|
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