Validation of sea ice concentration
Bulletin date: 2020-02-27
Model vs. observations, sea ice class contingency tables
Date: 2020-02-21:
| 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 |
13467 |
5749 |
761 |
311 |
198 |
87 |
10 |
0 |
| OW |
0 |
77 |
337 |
156 |
164 |
46 |
9 |
0 |
| VODI |
0 |
21 |
239 |
215 |
194 |
135 |
18 |
1 |
| ODI |
0 |
0 |
98 |
147 |
192 |
195 |
108 |
49 |
| CDI |
0 |
0 |
50 |
152 |
220 |
291 |
388 |
100 |
| VCDI |
0 |
0 |
54 |
173 |
268 |
467 |
7455 |
5557 |
|
...date precedes bulletin
|
Date: 2020-02-25:
| 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 |
13324 |
6105 |
639 |
647 |
157 |
58 |
15 |
0 |
| OW |
0 |
74 |
494 |
274 |
77 |
46 |
19 |
0 |
| VODI |
0 |
45 |
280 |
332 |
98 |
64 |
75 |
0 |
| ODI |
0 |
16 |
98 |
257 |
104 |
78 |
155 |
0 |
| CDI |
0 |
7 |
82 |
286 |
173 |
171 |
437 |
0 |
| VCDI |
0 |
3 |
13 |
96 |
159 |
448 |
8579 |
4174 |
|
...date precedes bulletin
|
Date: 2020-02-27:
| 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 |
13018 |
5801 |
877 |
629 |
239 |
121 |
31 |
0 |
| OW |
0 |
25 |
230 |
250 |
176 |
94 |
35 |
0 |
| VODI |
0 |
4 |
237 |
317 |
284 |
140 |
81 |
0 |
| ODI |
0 |
1 |
33 |
149 |
213 |
139 |
153 |
0 |
| CDI |
0 |
0 |
14 |
141 |
178 |
223 |
409 |
2 |
| VCDI |
0 |
0 |
0 |
38 |
155 |
486 |
8282 |
4954 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13018 |
5806 |
941 |
653 |
241 |
122 |
31 |
0 |
| OW |
0 |
20 |
206 |
263 |
153 |
82 |
38 |
0 |
| VODI |
0 |
3 |
191 |
295 |
292 |
145 |
96 |
0 |
| ODI |
0 |
2 |
37 |
141 |
214 |
147 |
147 |
0 |
| CDI |
0 |
0 |
15 |
132 |
170 |
226 |
404 |
1 |
| VCDI |
0 |
0 |
1 |
40 |
175 |
481 |
8275 |
4955 |
|
Date: 2020-03-02:
| 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 |
13058 |
6003 |
604 |
530 |
164 |
102 |
25 |
0 |
| OW |
0 |
33 |
117 |
249 |
121 |
64 |
19 |
0 |
| VODI |
0 |
9 |
87 |
305 |
332 |
241 |
118 |
0 |
| ODI |
0 |
3 |
19 |
165 |
156 |
224 |
341 |
0 |
| CDI |
0 |
9 |
16 |
105 |
157 |
213 |
628 |
3 |
| VCDI |
0 |
1 |
15 |
69 |
123 |
516 |
8011 |
5204 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13058 |
5992 |
571 |
474 |
184 |
143 |
43 |
0 |
| OW |
0 |
38 |
136 |
199 |
79 |
70 |
36 |
0 |
| VODI |
0 |
8 |
78 |
292 |
283 |
146 |
89 |
0 |
| ODI |
0 |
5 |
24 |
193 |
168 |
247 |
304 |
0 |
| CDI |
0 |
3 |
20 |
108 |
138 |
178 |
512 |
2 |
| VCDI |
0 |
12 |
29 |
157 |
201 |
576 |
8158 |
5205 |
|
Date: 2020-03-04:
| 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 |
13127 |
5845 |
707 |
473 |
133 |
93 |
60 |
0 |
| OW |
0 |
59 |
140 |
223 |
80 |
45 |
25 |
0 |
| VODI |
0 |
15 |
90 |
244 |
232 |
117 |
78 |
0 |
| ODI |
0 |
4 |
46 |
129 |
128 |
125 |
221 |
0 |
| CDI |
0 |
5 |
13 |
135 |
200 |
140 |
740 |
9 |
| VCDI |
0 |
6 |
13 |
133 |
192 |
370 |
8378 |
5386 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13127 |
5848 |
655 |
437 |
152 |
148 |
92 |
0 |
| OW |
0 |
63 |
190 |
183 |
31 |
24 |
54 |
0 |
| VODI |
0 |
7 |
106 |
277 |
189 |
74 |
100 |
0 |
| ODI |
0 |
3 |
33 |
171 |
160 |
116 |
201 |
0 |
| CDI |
0 |
2 |
7 |
89 |
192 |
132 |
674 |
10 |
| VCDI |
0 |
11 |
18 |
180 |
241 |
396 |
8381 |
5385 |
|
Date: 2020-03-06:
| 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 |
13101 |
5882 |
895 |
282 |
127 |
83 |
51 |
0 |
| OW |
0 |
15 |
181 |
136 |
108 |
83 |
52 |
0 |
| VODI |
0 |
3 |
115 |
119 |
164 |
294 |
103 |
0 |
| ODI |
0 |
1 |
33 |
72 |
90 |
288 |
149 |
0 |
| CDI |
0 |
0 |
10 |
45 |
99 |
260 |
492 |
8 |
| VCDI |
0 |
0 |
6 |
51 |
116 |
309 |
7640 |
6696 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13101 |
5842 |
725 |
245 |
138 |
109 |
137 |
0 |
| OW |
0 |
58 |
260 |
108 |
74 |
41 |
53 |
0 |
| VODI |
0 |
0 |
172 |
145 |
128 |
187 |
99 |
0 |
| ODI |
0 |
1 |
66 |
110 |
132 |
310 |
155 |
0 |
| CDI |
0 |
0 |
8 |
48 |
107 |
345 |
489 |
12 |
| VCDI |
0 |
0 |
9 |
49 |
125 |
325 |
7554 |
6692 |
|
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