Validation of sea ice concentration
Bulletin date: 2020-02-13
Model vs. observations, sea ice class contingency tables
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 |
|
...date precedes bulletin
|
Date: 2020-02-11:
| 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 |
13627 |
5875 |
837 |
385 |
95 |
23 |
3 |
0 |
| OW |
0 |
37 |
173 |
215 |
103 |
57 |
11 |
0 |
| VODI |
0 |
16 |
128 |
203 |
134 |
112 |
54 |
0 |
| ODI |
0 |
3 |
73 |
265 |
143 |
120 |
171 |
0 |
| CDI |
0 |
0 |
29 |
233 |
176 |
164 |
511 |
22 |
| VCDI |
0 |
0 |
11 |
185 |
325 |
493 |
8564 |
4583 |
|
...date precedes bulletin
|
Date: 2020-02-13:
| 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 |
13538 |
5840 |
968 |
388 |
148 |
74 |
16 |
0 |
| OW |
0 |
42 |
223 |
181 |
99 |
61 |
16 |
0 |
| VODI |
0 |
29 |
157 |
211 |
167 |
133 |
60 |
0 |
| ODI |
0 |
8 |
77 |
150 |
118 |
127 |
200 |
4 |
| CDI |
0 |
0 |
43 |
119 |
144 |
258 |
515 |
24 |
| VCDI |
0 |
0 |
46 |
195 |
210 |
612 |
7872 |
5086 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13538 |
5852 |
971 |
381 |
157 |
79 |
15 |
0 |
| OW |
0 |
34 |
224 |
169 |
85 |
65 |
19 |
0 |
| VODI |
0 |
26 |
150 |
234 |
170 |
137 |
68 |
0 |
| ODI |
0 |
7 |
75 |
147 |
124 |
117 |
215 |
5 |
| CDI |
0 |
0 |
48 |
120 |
135 |
252 |
513 |
19 |
| VCDI |
0 |
0 |
46 |
193 |
215 |
615 |
7849 |
5090 |
|
Date: 2020-02-17:
| 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 |
13766 |
5780 |
867 |
254 |
155 |
68 |
4 |
0 |
| OW |
0 |
77 |
335 |
222 |
126 |
87 |
17 |
0 |
| VODI |
0 |
7 |
161 |
323 |
244 |
236 |
51 |
9 |
| ODI |
0 |
1 |
46 |
150 |
177 |
202 |
167 |
68 |
| CDI |
0 |
0 |
38 |
103 |
132 |
254 |
410 |
175 |
| VCDI |
0 |
0 |
7 |
54 |
72 |
297 |
6276 |
6741 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13766 |
5773 |
843 |
243 |
145 |
74 |
15 |
0 |
| OW |
0 |
61 |
258 |
151 |
78 |
54 |
13 |
0 |
| VODI |
0 |
26 |
171 |
228 |
196 |
159 |
72 |
0 |
| ODI |
0 |
4 |
80 |
148 |
114 |
204 |
169 |
43 |
| CDI |
0 |
1 |
42 |
153 |
141 |
188 |
323 |
109 |
| VCDI |
0 |
0 |
60 |
183 |
232 |
465 |
6333 |
6841 |
|
Date: 2020-02-19:
| 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 |
13615 |
5782 |
903 |
348 |
180 |
86 |
17 |
0 |
| OW |
0 |
76 |
317 |
195 |
77 |
62 |
13 |
0 |
| VODI |
0 |
18 |
200 |
360 |
152 |
95 |
43 |
30 |
| ODI |
0 |
0 |
148 |
242 |
151 |
115 |
89 |
104 |
| CDI |
0 |
0 |
63 |
170 |
181 |
216 |
426 |
125 |
| VCDI |
0 |
0 |
37 |
171 |
174 |
461 |
6971 |
5746 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13615 |
5684 |
785 |
292 |
161 |
86 |
24 |
0 |
| OW |
0 |
121 |
252 |
165 |
80 |
40 |
14 |
0 |
| VODI |
0 |
58 |
257 |
299 |
126 |
106 |
50 |
27 |
| ODI |
0 |
13 |
127 |
207 |
128 |
112 |
129 |
78 |
| CDI |
0 |
0 |
99 |
185 |
175 |
175 |
398 |
112 |
| VCDI |
0 |
0 |
148 |
338 |
245 |
516 |
6944 |
5788 |
|
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 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13467 |
5697 |
707 |
309 |
203 |
92 |
9 |
0 |
| OW |
0 |
93 |
205 |
116 |
111 |
43 |
13 |
0 |
| VODI |
0 |
35 |
262 |
174 |
184 |
114 |
28 |
0 |
| ODI |
0 |
21 |
163 |
138 |
184 |
173 |
160 |
28 |
| CDI |
0 |
1 |
88 |
119 |
170 |
242 |
453 |
82 |
| VCDI |
0 |
0 |
114 |
298 |
384 |
557 |
7325 |
5597 |
|
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