Validation of sea ice concentration
Bulletin date: 2020-01-30
Model vs. observations, sea ice class contingency tables
Date: 2020-01-24:
| 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 |
13405 |
6224 |
808 |
492 |
121 |
30 |
7 |
0 |
| OW |
0 |
151 |
235 |
191 |
76 |
32 |
19 |
0 |
| VODI |
0 |
47 |
108 |
193 |
116 |
85 |
59 |
0 |
| ODI |
0 |
14 |
49 |
175 |
114 |
93 |
127 |
18 |
| CDI |
0 |
2 |
48 |
149 |
159 |
115 |
436 |
69 |
| VCDI |
0 |
2 |
32 |
186 |
307 |
363 |
7517 |
5785 |
|
...date precedes bulletin
|
Date: 2020-01-28:
| 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 |
13666 |
5910 |
639 |
444 |
204 |
151 |
41 |
0 |
| OW |
0 |
127 |
150 |
142 |
117 |
100 |
36 |
0 |
| VODI |
0 |
30 |
87 |
108 |
141 |
171 |
108 |
0 |
| ODI |
0 |
14 |
33 |
43 |
81 |
192 |
213 |
0 |
| CDI |
0 |
15 |
32 |
27 |
60 |
268 |
422 |
33 |
| VCDI |
0 |
1 |
29 |
60 |
99 |
414 |
6507 |
7244 |
|
...date precedes bulletin
|
Date: 2020-01-30:
| 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 |
13765 |
5705 |
619 |
265 |
172 |
141 |
71 |
0 |
| OW |
0 |
84 |
287 |
117 |
70 |
68 |
84 |
0 |
| VODI |
0 |
15 |
185 |
123 |
134 |
128 |
158 |
0 |
| ODI |
0 |
6 |
86 |
89 |
99 |
174 |
251 |
0 |
| CDI |
0 |
4 |
41 |
51 |
91 |
206 |
603 |
32 |
| VCDI |
0 |
0 |
38 |
47 |
58 |
177 |
6462 |
7453 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13765 |
5684 |
622 |
274 |
173 |
153 |
76 |
0 |
| OW |
0 |
99 |
266 |
102 |
67 |
74 |
80 |
0 |
| VODI |
0 |
21 |
197 |
135 |
128 |
125 |
159 |
0 |
| ODI |
0 |
5 |
86 |
73 |
105 |
152 |
241 |
0 |
| CDI |
0 |
4 |
43 |
57 |
90 |
203 |
563 |
36 |
| VCDI |
0 |
1 |
42 |
51 |
61 |
187 |
6510 |
7449 |
|
Date: 2020-02-03:
| 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 |
13608 |
5770 |
569 |
304 |
87 |
37 |
12 |
0 |
| OW |
0 |
92 |
218 |
187 |
87 |
53 |
11 |
0 |
| VODI |
0 |
59 |
186 |
302 |
175 |
109 |
28 |
0 |
| ODI |
0 |
4 |
93 |
307 |
302 |
229 |
114 |
11 |
| CDI |
0 |
0 |
22 |
261 |
213 |
314 |
615 |
128 |
| VCDI |
0 |
0 |
13 |
186 |
235 |
478 |
6544 |
6196 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13608 |
5729 |
553 |
308 |
90 |
52 |
14 |
0 |
| OW |
0 |
119 |
160 |
130 |
72 |
47 |
12 |
0 |
| VODI |
0 |
66 |
197 |
240 |
135 |
80 |
33 |
0 |
| ODI |
0 |
10 |
115 |
271 |
201 |
166 |
96 |
16 |
| CDI |
0 |
1 |
48 |
271 |
246 |
193 |
417 |
138 |
| VCDI |
0 |
0 |
28 |
327 |
355 |
682 |
6752 |
6181 |
|
Date: 2020-02-05:
| 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 |
13173 |
5672 |
863 |
280 |
117 |
61 |
17 |
0 |
| OW |
0 |
5 |
167 |
168 |
114 |
66 |
15 |
0 |
| VODI |
0 |
0 |
78 |
182 |
224 |
162 |
47 |
0 |
| ODI |
0 |
0 |
32 |
97 |
222 |
294 |
92 |
11 |
| CDI |
0 |
0 |
18 |
85 |
246 |
483 |
462 |
72 |
| VCDI |
0 |
0 |
2 |
62 |
341 |
713 |
7350 |
6166 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13173 |
5667 |
800 |
321 |
163 |
91 |
27 |
0 |
| OW |
0 |
8 |
161 |
107 |
111 |
80 |
25 |
0 |
| VODI |
0 |
2 |
119 |
160 |
141 |
162 |
46 |
0 |
| ODI |
0 |
0 |
52 |
109 |
254 |
255 |
132 |
45 |
| CDI |
0 |
0 |
26 |
63 |
254 |
341 |
386 |
134 |
| VCDI |
0 |
0 |
2 |
114 |
341 |
850 |
7367 |
6070 |
|
Date: 2020-02-07:
| 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 |
13053 |
5622 |
1184 |
220 |
147 |
32 |
2 |
0 |
| OW |
0 |
3 |
206 |
126 |
85 |
82 |
12 |
0 |
| VODI |
0 |
1 |
97 |
145 |
156 |
148 |
41 |
0 |
| ODI |
0 |
0 |
30 |
48 |
154 |
286 |
136 |
5 |
| CDI |
0 |
0 |
18 |
43 |
121 |
473 |
457 |
58 |
| VCDI |
0 |
0 |
12 |
29 |
83 |
822 |
7333 |
6689 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13053 |
5625 |
1079 |
232 |
163 |
108 |
15 |
0 |
| OW |
0 |
1 |
223 |
98 |
92 |
95 |
21 |
0 |
| VODI |
0 |
0 |
153 |
107 |
125 |
165 |
81 |
0 |
| ODI |
0 |
0 |
53 |
78 |
139 |
267 |
93 |
9 |
| CDI |
0 |
0 |
24 |
56 |
117 |
424 |
397 |
102 |
| VCDI |
0 |
0 |
15 |
40 |
110 |
784 |
7374 |
6641 |
|
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