Validation of sea ice concentration
Bulletin date: 2019-03-21
Model vs. observations, sea ice class contingency tables
Date: 2019-03-15:
| 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 |
12882 |
5823 |
730 |
400 |
171 |
114 |
103 |
0 |
| OW |
0 |
59 |
146 |
93 |
68 |
59 |
69 |
0 |
| VODI |
0 |
17 |
113 |
86 |
97 |
84 |
123 |
0 |
| ODI |
0 |
7 |
69 |
86 |
108 |
165 |
182 |
0 |
| CDI |
0 |
2 |
28 |
67 |
102 |
208 |
542 |
30 |
| VCDI |
0 |
0 |
10 |
68 |
140 |
306 |
6399 |
8403 |
|
...date precedes bulletin
|
Date: 2019-03-19:
| 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 |
13063 |
5983 |
818 |
388 |
129 |
92 |
92 |
0 |
| OW |
0 |
48 |
173 |
181 |
77 |
73 |
50 |
0 |
| VODI |
0 |
8 |
170 |
228 |
138 |
112 |
98 |
0 |
| ODI |
0 |
0 |
55 |
157 |
125 |
170 |
180 |
3 |
| CDI |
0 |
0 |
20 |
122 |
146 |
307 |
451 |
40 |
| VCDI |
0 |
0 |
13 |
65 |
108 |
509 |
8231 |
5536 |
|
...date precedes bulletin
|
Date: 2019-03-21:
| 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 |
13468 |
5805 |
687 |
277 |
129 |
93 |
76 |
0 |
| OW |
0 |
110 |
152 |
168 |
107 |
98 |
81 |
0 |
| VODI |
0 |
41 |
143 |
169 |
122 |
139 |
176 |
0 |
| ODI |
0 |
2 |
56 |
118 |
113 |
140 |
299 |
13 |
| CDI |
0 |
0 |
19 |
80 |
117 |
183 |
582 |
111 |
| VCDI |
0 |
0 |
4 |
45 |
107 |
254 |
7377 |
6498 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13468 |
5815 |
688 |
283 |
135 |
87 |
83 |
0 |
| OW |
0 |
109 |
175 |
164 |
113 |
99 |
71 |
0 |
| VODI |
0 |
31 |
123 |
172 |
124 |
151 |
185 |
0 |
| ODI |
0 |
3 |
50 |
118 |
104 |
130 |
302 |
12 |
| CDI |
0 |
0 |
20 |
70 |
112 |
185 |
596 |
113 |
| VCDI |
0 |
0 |
5 |
50 |
107 |
255 |
7354 |
6497 |
|
Date: 2019-03-25:
| 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 |
13172 |
5901 |
974 |
449 |
115 |
38 |
66 |
0 |
| OW |
0 |
33 |
272 |
232 |
122 |
69 |
64 |
0 |
| VODI |
0 |
5 |
226 |
310 |
229 |
199 |
176 |
0 |
| ODI |
0 |
0 |
53 |
141 |
187 |
219 |
336 |
13 |
| CDI |
0 |
0 |
25 |
107 |
170 |
276 |
709 |
43 |
| VCDI |
0 |
0 |
24 |
49 |
94 |
416 |
7214 |
5431 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13172 |
5887 |
909 |
408 |
123 |
50 |
76 |
0 |
| OW |
0 |
32 |
277 |
187 |
126 |
82 |
73 |
0 |
| VODI |
0 |
12 |
192 |
233 |
130 |
115 |
147 |
0 |
| ODI |
0 |
8 |
90 |
159 |
114 |
142 |
212 |
6 |
| CDI |
0 |
0 |
67 |
136 |
196 |
239 |
544 |
25 |
| VCDI |
0 |
0 |
39 |
165 |
228 |
589 |
7513 |
5456 |
|
Date: 2019-03-27:
| 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 |
13406 |
5869 |
1003 |
387 |
74 |
64 |
65 |
0 |
| OW |
0 |
24 |
274 |
264 |
109 |
78 |
85 |
0 |
| VODI |
0 |
12 |
146 |
327 |
162 |
142 |
123 |
0 |
| ODI |
0 |
0 |
53 |
219 |
143 |
158 |
243 |
8 |
| CDI |
0 |
0 |
20 |
140 |
170 |
248 |
710 |
21 |
| VCDI |
0 |
0 |
3 |
108 |
183 |
430 |
7648 |
5040 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13406 |
5811 |
877 |
284 |
50 |
56 |
46 |
0 |
| OW |
0 |
50 |
227 |
192 |
79 |
65 |
59 |
0 |
| VODI |
0 |
30 |
201 |
304 |
120 |
112 |
131 |
0 |
| ODI |
0 |
11 |
103 |
209 |
119 |
135 |
187 |
5 |
| CDI |
0 |
3 |
60 |
191 |
142 |
169 |
514 |
18 |
| VCDI |
0 |
0 |
31 |
265 |
331 |
583 |
7937 |
5046 |
|
Date: 2019-03-29:
| 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 |
13130 |
5983 |
1177 |
505 |
54 |
36 |
100 |
0 |
| OW |
0 |
41 |
320 |
267 |
112 |
78 |
81 |
0 |
| VODI |
0 |
8 |
167 |
261 |
159 |
175 |
143 |
0 |
| ODI |
0 |
1 |
51 |
140 |
111 |
149 |
226 |
5 |
| CDI |
0 |
0 |
22 |
120 |
140 |
212 |
641 |
35 |
| VCDI |
0 |
0 |
19 |
115 |
146 |
380 |
7665 |
5184 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13130 |
5905 |
976 |
389 |
39 |
25 |
42 |
0 |
| OW |
0 |
70 |
262 |
159 |
53 |
39 |
69 |
0 |
| VODI |
0 |
44 |
239 |
251 |
136 |
116 |
123 |
0 |
| ODI |
0 |
11 |
130 |
168 |
92 |
117 |
193 |
5 |
| CDI |
0 |
3 |
95 |
181 |
128 |
139 |
453 |
34 |
| VCDI |
0 |
0 |
54 |
260 |
274 |
594 |
7976 |
5185 |
|
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