Validation of sea ice concentration
Bulletin date: 2019-08-29
Model vs. observations, sea ice class contingency tables
Date: 2019-08-23:
| 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 |
23357 |
5239 |
1295 |
445 |
125 |
41 |
7 |
0 |
| OW |
0 |
19 |
170 |
281 |
105 |
32 |
19 |
0 |
| VODI |
0 |
1 |
60 |
267 |
225 |
109 |
65 |
0 |
| ODI |
0 |
0 |
7 |
56 |
107 |
216 |
327 |
0 |
| CDI |
0 |
0 |
3 |
6 |
18 |
286 |
2147 |
472 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
6 |
560 |
2082 |
|
...date precedes bulletin
|
Date: 2019-08-27:
| 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 |
24016 |
4945 |
1287 |
453 |
69 |
23 |
1 |
0 |
| OW |
0 |
13 |
133 |
330 |
93 |
35 |
0 |
0 |
| VODI |
0 |
5 |
49 |
210 |
212 |
109 |
26 |
0 |
| ODI |
0 |
0 |
9 |
45 |
150 |
318 |
260 |
0 |
| CDI |
0 |
0 |
4 |
3 |
34 |
372 |
2046 |
567 |
| VCDI |
0 |
0 |
0 |
1 |
4 |
32 |
954 |
1351 |
|
...date precedes bulletin
|
Date: 2019-08-29:
| 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 |
24246 |
4792 |
1196 |
588 |
135 |
32 |
0 |
0 |
| OW |
0 |
10 |
109 |
342 |
118 |
34 |
2 |
0 |
| VODI |
0 |
5 |
46 |
197 |
186 |
118 |
41 |
0 |
| ODI |
0 |
0 |
8 |
48 |
136 |
268 |
241 |
0 |
| CDI |
0 |
0 |
2 |
5 |
41 |
194 |
2289 |
645 |
| VCDI |
0 |
0 |
0 |
1 |
0 |
17 |
759 |
1308 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24246 |
4788 |
1189 |
593 |
137 |
33 |
0 |
0 |
| OW |
0 |
12 |
108 |
325 |
117 |
36 |
2 |
0 |
| VODI |
0 |
7 |
53 |
208 |
192 |
137 |
47 |
0 |
| ODI |
0 |
0 |
11 |
47 |
133 |
240 |
266 |
0 |
| CDI |
0 |
0 |
0 |
7 |
36 |
200 |
2203 |
546 |
| VCDI |
0 |
0 |
0 |
1 |
1 |
17 |
814 |
1407 |
|
Date: 2019-09-02:
| 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 |
24378 |
5075 |
1138 |
721 |
147 |
30 |
20 |
0 |
| OW |
0 |
11 |
107 |
208 |
86 |
23 |
9 |
0 |
| VODI |
0 |
0 |
31 |
142 |
160 |
48 |
29 |
0 |
| ODI |
0 |
0 |
6 |
62 |
84 |
151 |
269 |
0 |
| CDI |
0 |
0 |
0 |
8 |
64 |
272 |
2213 |
541 |
| VCDI |
0 |
0 |
0 |
2 |
0 |
24 |
992 |
1108 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24378 |
5025 |
1057 |
572 |
96 |
28 |
21 |
0 |
| OW |
0 |
48 |
103 |
257 |
95 |
24 |
9 |
0 |
| VODI |
0 |
13 |
94 |
176 |
174 |
50 |
31 |
0 |
| ODI |
0 |
0 |
27 |
114 |
91 |
153 |
271 |
0 |
| CDI |
0 |
0 |
1 |
22 |
79 |
265 |
2262 |
335 |
| VCDI |
0 |
0 |
0 |
2 |
6 |
28 |
938 |
1314 |
|
Date: 2019-09-04:
| 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 |
24566 |
5020 |
1263 |
483 |
122 |
19 |
6 |
0 |
| OW |
0 |
24 |
145 |
149 |
52 |
7 |
7 |
0 |
| VODI |
0 |
8 |
60 |
130 |
120 |
48 |
24 |
0 |
| ODI |
0 |
0 |
10 |
67 |
94 |
142 |
161 |
0 |
| CDI |
0 |
0 |
0 |
16 |
61 |
83 |
1757 |
992 |
| VCDI |
0 |
0 |
0 |
2 |
25 |
32 |
1211 |
1253 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24566 |
4953 |
1102 |
325 |
72 |
10 |
2 |
0 |
| OW |
0 |
52 |
227 |
207 |
75 |
15 |
14 |
0 |
| VODI |
0 |
40 |
97 |
172 |
114 |
72 |
31 |
0 |
| ODI |
0 |
7 |
52 |
110 |
109 |
118 |
183 |
0 |
| CDI |
0 |
0 |
0 |
30 |
55 |
74 |
1575 |
643 |
| VCDI |
0 |
0 |
0 |
3 |
49 |
42 |
1361 |
1602 |
|
Date: 2019-09-06:
| 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 |
24399 |
5110 |
1186 |
459 |
161 |
26 |
3 |
0 |
| OW |
0 |
13 |
119 |
151 |
69 |
17 |
8 |
0 |
| VODI |
0 |
4 |
43 |
117 |
134 |
66 |
38 |
0 |
| ODI |
0 |
0 |
9 |
31 |
104 |
156 |
136 |
0 |
| CDI |
0 |
0 |
0 |
11 |
25 |
76 |
1703 |
764 |
| VCDI |
0 |
0 |
0 |
5 |
8 |
5 |
1107 |
1896 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24399 |
5046 |
948 |
309 |
83 |
16 |
1 |
0 |
| OW |
0 |
52 |
244 |
188 |
96 |
22 |
12 |
0 |
| VODI |
0 |
23 |
120 |
166 |
148 |
60 |
27 |
0 |
| ODI |
0 |
6 |
43 |
78 |
116 |
158 |
161 |
0 |
| CDI |
0 |
0 |
2 |
33 |
47 |
79 |
1506 |
337 |
| VCDI |
0 |
0 |
0 |
0 |
11 |
11 |
1288 |
2323 |
|
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