Validation of sea ice concentration
Bulletin date: 2018-05-31
Model vs. observations, sea ice class contingency tables
Date: 2018-05-25:
| 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 |
15968 |
6453 |
1075 |
747 |
391 |
130 |
70 |
0 |
| OW |
0 |
1 |
80 |
137 |
304 |
122 |
49 |
0 |
| VODI |
0 |
3 |
37 |
73 |
198 |
213 |
262 |
22 |
| ODI |
0 |
0 |
27 |
56 |
78 |
163 |
374 |
3 |
| CDI |
0 |
0 |
6 |
69 |
55 |
152 |
1104 |
0 |
| VCDI |
0 |
0 |
0 |
13 |
23 |
140 |
5675 |
3886 |
|
...date precedes bulletin
|
Date: 2018-05-29:
| 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 |
16190 |
6178 |
1040 |
987 |
432 |
91 |
96 |
0 |
| OW |
0 |
11 |
51 |
168 |
258 |
95 |
52 |
7 |
| VODI |
0 |
3 |
25 |
105 |
224 |
167 |
163 |
17 |
| ODI |
0 |
0 |
7 |
82 |
147 |
233 |
293 |
1 |
| CDI |
0 |
0 |
0 |
27 |
69 |
265 |
1324 |
0 |
| VCDI |
0 |
0 |
0 |
20 |
32 |
189 |
5140 |
3970 |
|
...date precedes bulletin
|
Date: 2018-05-31:
| 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 |
15684 |
6452 |
1097 |
1158 |
503 |
136 |
82 |
0 |
| OW |
0 |
8 |
47 |
168 |
239 |
133 |
87 |
13 |
| VODI |
0 |
1 |
15 |
120 |
207 |
174 |
212 |
11 |
| ODI |
0 |
0 |
1 |
54 |
115 |
220 |
426 |
1 |
| CDI |
0 |
0 |
0 |
27 |
52 |
191 |
1453 |
0 |
| VCDI |
0 |
0 |
0 |
13 |
44 |
141 |
4899 |
3975 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15684 |
6454 |
1101 |
1173 |
542 |
173 |
96 |
0 |
| OW |
0 |
6 |
40 |
149 |
226 |
107 |
78 |
10 |
| VODI |
0 |
1 |
18 |
114 |
193 |
192 |
228 |
14 |
| ODI |
0 |
0 |
1 |
58 |
95 |
205 |
442 |
1 |
| CDI |
0 |
0 |
0 |
33 |
57 |
182 |
1494 |
2 |
| VCDI |
0 |
0 |
0 |
13 |
47 |
136 |
4821 |
3973 |
|
Date: 2018-06-04:
| 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 |
15954 |
6685 |
1056 |
1119 |
423 |
93 |
44 |
1 |
| OW |
0 |
12 |
72 |
203 |
176 |
54 |
59 |
14 |
| VODI |
0 |
0 |
39 |
159 |
266 |
120 |
102 |
9 |
| ODI |
0 |
0 |
9 |
82 |
219 |
252 |
243 |
1 |
| CDI |
0 |
0 |
1 |
54 |
117 |
425 |
1596 |
0 |
| VCDI |
0 |
0 |
0 |
8 |
17 |
183 |
4473 |
3819 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15954 |
6691 |
1066 |
1181 |
566 |
136 |
88 |
20 |
| OW |
0 |
6 |
47 |
144 |
191 |
95 |
91 |
2 |
| VODI |
0 |
0 |
35 |
135 |
198 |
220 |
203 |
2 |
| ODI |
0 |
0 |
18 |
72 |
100 |
142 |
392 |
1 |
| CDI |
0 |
0 |
11 |
70 |
116 |
258 |
1240 |
3 |
| VCDI |
0 |
0 |
0 |
23 |
47 |
276 |
4503 |
3816 |
|
Date: 2018-06-06:
| 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 |
16382 |
6329 |
1037 |
1290 |
316 |
49 |
66 |
7 |
| OW |
0 |
24 |
58 |
205 |
202 |
73 |
49 |
15 |
| VODI |
0 |
0 |
28 |
176 |
273 |
166 |
156 |
2 |
| ODI |
0 |
0 |
10 |
85 |
147 |
219 |
351 |
1 |
| CDI |
0 |
0 |
8 |
65 |
93 |
322 |
1792 |
1 |
| VCDI |
0 |
0 |
2 |
10 |
15 |
97 |
4315 |
3723 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16382 |
6341 |
1028 |
1345 |
477 |
119 |
117 |
21 |
| OW |
0 |
8 |
39 |
154 |
170 |
112 |
103 |
1 |
| VODI |
0 |
4 |
35 |
131 |
147 |
181 |
303 |
2 |
| ODI |
0 |
0 |
25 |
91 |
87 |
88 |
417 |
1 |
| CDI |
0 |
0 |
14 |
83 |
129 |
224 |
1611 |
4 |
| VCDI |
0 |
0 |
2 |
27 |
36 |
202 |
4178 |
3720 |
|
Date: 2018-06-08:
| 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 |
16119 |
6402 |
1335 |
1187 |
384 |
65 |
58 |
15 |
| OW |
0 |
1 |
96 |
235 |
199 |
100 |
74 |
7 |
| VODI |
0 |
0 |
48 |
200 |
270 |
200 |
214 |
2 |
| ODI |
0 |
0 |
28 |
108 |
129 |
231 |
425 |
1 |
| CDI |
0 |
0 |
6 |
111 |
149 |
327 |
1972 |
1 |
| VCDI |
0 |
0 |
0 |
9 |
9 |
111 |
3682 |
3649 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16119 |
6378 |
1246 |
1292 |
576 |
204 |
147 |
22 |
| OW |
0 |
16 |
51 |
96 |
145 |
120 |
129 |
0 |
| VODI |
0 |
6 |
59 |
69 |
79 |
189 |
378 |
2 |
| ODI |
0 |
3 |
59 |
67 |
37 |
73 |
394 |
1 |
| CDI |
0 |
0 |
62 |
165 |
204 |
259 |
1610 |
1 |
| VCDI |
0 |
0 |
36 |
161 |
99 |
189 |
3767 |
3649 |
|
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