Validation of sea ice concentration
Bulletin date: 2018-05-03
Model vs. observations, sea ice class contingency tables
Date: 2018-04-27:
| 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 |
14051 |
5838 |
659 |
487 |
209 |
120 |
85 |
0 |
| OW |
0 |
22 |
112 |
146 |
90 |
103 |
99 |
0 |
| VODI |
0 |
2 |
45 |
125 |
110 |
163 |
241 |
0 |
| ODI |
0 |
0 |
7 |
31 |
81 |
128 |
304 |
0 |
| CDI |
0 |
0 |
3 |
20 |
53 |
157 |
731 |
71 |
| VCDI |
0 |
0 |
1 |
14 |
22 |
185 |
6368 |
7276 |
|
...date precedes bulletin
|
Date: 2018-05-01:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2018-05-03:
| 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 |
13587 |
6112 |
1117 |
613 |
241 |
172 |
154 |
0 |
| OW |
0 |
19 |
71 |
154 |
131 |
101 |
122 |
0 |
| VODI |
0 |
0 |
32 |
104 |
109 |
183 |
196 |
0 |
| ODI |
0 |
0 |
13 |
65 |
52 |
108 |
326 |
13 |
| CDI |
0 |
0 |
10 |
38 |
50 |
135 |
671 |
48 |
| VCDI |
0 |
0 |
33 |
27 |
35 |
194 |
7655 |
5468 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13587 |
6104 |
1124 |
636 |
249 |
179 |
159 |
0 |
| OW |
0 |
27 |
62 |
141 |
119 |
124 |
114 |
0 |
| VODI |
0 |
0 |
36 |
96 |
114 |
153 |
191 |
1 |
| ODI |
0 |
0 |
11 |
63 |
51 |
102 |
299 |
10 |
| CDI |
0 |
0 |
8 |
35 |
48 |
144 |
677 |
51 |
| VCDI |
0 |
0 |
35 |
30 |
37 |
191 |
7684 |
5467 |
|
Date: 2018-05-07:
| 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 |
14428 |
6284 |
990 |
588 |
192 |
67 |
50 |
0 |
| OW |
0 |
30 |
85 |
187 |
190 |
77 |
95 |
0 |
| VODI |
0 |
6 |
65 |
158 |
194 |
148 |
89 |
2 |
| ODI |
0 |
0 |
25 |
75 |
186 |
260 |
221 |
4 |
| CDI |
0 |
0 |
19 |
54 |
121 |
392 |
875 |
13 |
| VCDI |
0 |
359 |
17 |
37 |
115 |
413 |
8141 |
2907 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14428 |
6282 |
914 |
603 |
277 |
103 |
100 |
0 |
| OW |
0 |
29 |
152 |
164 |
165 |
109 |
93 |
0 |
| VODI |
0 |
7 |
52 |
126 |
145 |
160 |
163 |
3 |
| ODI |
0 |
2 |
17 |
52 |
112 |
158 |
231 |
5 |
| CDI |
0 |
0 |
42 |
74 |
137 |
294 |
766 |
17 |
| VCDI |
0 |
359 |
24 |
80 |
162 |
533 |
8118 |
2901 |
|
Date: 2018-05-09:
| 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 |
14607 |
6370 |
1125 |
598 |
127 |
41 |
44 |
0 |
| OW |
0 |
26 |
87 |
218 |
150 |
68 |
63 |
0 |
| VODI |
0 |
9 |
51 |
167 |
219 |
149 |
128 |
0 |
| ODI |
0 |
2 |
18 |
95 |
165 |
185 |
238 |
3 |
| CDI |
0 |
0 |
28 |
67 |
120 |
416 |
1080 |
8 |
| VCDI |
0 |
209 |
10 |
27 |
110 |
327 |
7563 |
3241 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14607 |
6343 |
1044 |
595 |
180 |
85 |
104 |
0 |
| OW |
0 |
43 |
130 |
196 |
143 |
61 |
73 |
0 |
| VODI |
0 |
17 |
54 |
136 |
150 |
119 |
178 |
3 |
| ODI |
0 |
4 |
31 |
89 |
115 |
153 |
265 |
4 |
| CDI |
0 |
0 |
37 |
87 |
142 |
281 |
981 |
20 |
| VCDI |
0 |
209 |
23 |
69 |
161 |
487 |
7515 |
3225 |
|
Date: 2018-05-11:
| 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 |
14963 |
6321 |
1118 |
492 |
160 |
61 |
50 |
0 |
| OW |
0 |
13 |
148 |
153 |
122 |
56 |
62 |
0 |
| VODI |
0 |
7 |
54 |
178 |
180 |
123 |
139 |
0 |
| ODI |
0 |
0 |
17 |
103 |
176 |
152 |
270 |
0 |
| CDI |
0 |
0 |
7 |
111 |
319 |
610 |
940 |
53 |
| VCDI |
0 |
0 |
6 |
32 |
131 |
493 |
5779 |
4560 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14963 |
6298 |
1072 |
493 |
176 |
83 |
149 |
0 |
| OW |
0 |
32 |
153 |
144 |
124 |
82 |
76 |
0 |
| VODI |
0 |
9 |
81 |
140 |
147 |
105 |
194 |
0 |
| ODI |
0 |
2 |
30 |
126 |
174 |
138 |
261 |
0 |
| CDI |
0 |
0 |
9 |
64 |
189 |
352 |
969 |
4 |
| VCDI |
0 |
0 |
5 |
102 |
278 |
735 |
5591 |
4609 |
|
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