Validation of sea ice concentration
Bulletin date: 2018-06-21
Model vs. observations, sea ice class contingency tables
Date: 2018-06-15:
| 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 |
16351 |
6537 |
1706 |
1121 |
418 |
65 |
97 |
0 |
| OW |
0 |
0 |
63 |
188 |
228 |
129 |
85 |
0 |
| VODI |
0 |
0 |
53 |
143 |
227 |
328 |
275 |
0 |
| ODI |
0 |
0 |
22 |
75 |
134 |
448 |
687 |
0 |
| CDI |
0 |
0 |
2 |
7 |
35 |
279 |
2796 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
5 |
9 |
2103 |
3541 |
|
...date precedes bulletin
|
Date: 2018-06-19:
| 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 |
17007 |
6708 |
1622 |
988 |
305 |
62 |
99 |
0 |
| OW |
0 |
0 |
73 |
169 |
185 |
100 |
81 |
0 |
| VODI |
0 |
0 |
27 |
132 |
247 |
274 |
221 |
3 |
| ODI |
0 |
0 |
10 |
36 |
90 |
543 |
941 |
2 |
| CDI |
0 |
0 |
1 |
9 |
18 |
137 |
3115 |
18 |
| VCDI |
0 |
0 |
0 |
7 |
4 |
31 |
1827 |
3067 |
|
...date precedes bulletin
|
Date: 2018-06-21:
| 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 |
17158 |
6748 |
1952 |
771 |
270 |
58 |
120 |
0 |
| OW |
0 |
0 |
97 |
233 |
234 |
75 |
116 |
0 |
| VODI |
0 |
0 |
33 |
129 |
280 |
283 |
495 |
0 |
| ODI |
0 |
0 |
5 |
40 |
102 |
326 |
1001 |
0 |
| CDI |
0 |
0 |
0 |
30 |
39 |
119 |
2719 |
15 |
| VCDI |
0 |
0 |
0 |
7 |
4 |
20 |
1650 |
3030 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17158 |
6748 |
1977 |
890 |
357 |
69 |
150 |
0 |
| OW |
0 |
0 |
73 |
133 |
183 |
81 |
108 |
0 |
| VODI |
0 |
0 |
31 |
107 |
242 |
267 |
420 |
0 |
| ODI |
0 |
0 |
6 |
40 |
102 |
347 |
1075 |
0 |
| CDI |
0 |
0 |
0 |
33 |
42 |
96 |
2728 |
29 |
| VCDI |
0 |
0 |
0 |
7 |
3 |
21 |
1620 |
3016 |
|
Date: 2018-06-25:
| 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 |
17123 |
7266 |
1600 |
1223 |
166 |
48 |
133 |
0 |
| OW |
0 |
40 |
173 |
292 |
114 |
34 |
60 |
0 |
| VODI |
0 |
10 |
97 |
308 |
304 |
125 |
138 |
0 |
| ODI |
0 |
0 |
13 |
77 |
285 |
490 |
583 |
0 |
| CDI |
0 |
0 |
1 |
36 |
59 |
328 |
2276 |
30 |
| VCDI |
0 |
0 |
0 |
7 |
1 |
18 |
1793 |
2908 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17123 |
7299 |
1670 |
1428 |
241 |
70 |
166 |
0 |
| OW |
0 |
10 |
124 |
211 |
221 |
99 |
125 |
0 |
| VODI |
0 |
7 |
70 |
185 |
318 |
475 |
412 |
0 |
| ODI |
0 |
0 |
19 |
82 |
102 |
274 |
853 |
0 |
| CDI |
0 |
0 |
1 |
30 |
40 |
102 |
2510 |
21 |
| VCDI |
0 |
0 |
0 |
7 |
7 |
23 |
917 |
2917 |
|
Date: 2018-06-27:
| 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 |
17515 |
7348 |
1473 |
966 |
279 |
72 |
147 |
0 |
| OW |
0 |
8 |
154 |
237 |
257 |
83 |
77 |
0 |
| VODI |
0 |
0 |
57 |
175 |
344 |
211 |
372 |
0 |
| ODI |
0 |
0 |
7 |
55 |
145 |
241 |
1279 |
4 |
| CDI |
0 |
0 |
1 |
13 |
30 |
117 |
1930 |
15 |
| VCDI |
0 |
0 |
0 |
12 |
20 |
106 |
1741 |
2668 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17515 |
7354 |
1526 |
1100 |
440 |
171 |
229 |
0 |
| OW |
0 |
2 |
103 |
141 |
303 |
125 |
274 |
0 |
| VODI |
0 |
0 |
57 |
120 |
208 |
204 |
889 |
0 |
| ODI |
0 |
0 |
6 |
72 |
76 |
165 |
1168 |
5 |
| CDI |
0 |
0 |
0 |
18 |
39 |
91 |
2326 |
202 |
| VCDI |
0 |
0 |
0 |
7 |
9 |
74 |
660 |
2480 |
|
Date: 2018-06-29:
| 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 |
17281 |
7325 |
1529 |
1063 |
398 |
136 |
205 |
0 |
| OW |
0 |
14 |
160 |
236 |
270 |
113 |
119 |
0 |
| VODI |
0 |
1 |
55 |
169 |
287 |
321 |
560 |
0 |
| ODI |
0 |
0 |
7 |
73 |
98 |
328 |
1644 |
0 |
| CDI |
0 |
0 |
1 |
12 |
43 |
194 |
996 |
0 |
| VCDI |
0 |
0 |
0 |
13 |
20 |
114 |
1718 |
2656 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17281 |
7339 |
1639 |
1247 |
614 |
265 |
351 |
0 |
| OW |
0 |
1 |
83 |
142 |
216 |
216 |
460 |
0 |
| VODI |
0 |
0 |
30 |
123 |
159 |
287 |
838 |
0 |
| ODI |
0 |
0 |
0 |
33 |
78 |
252 |
1323 |
0 |
| CDI |
0 |
0 |
0 |
15 |
47 |
164 |
1723 |
427 |
| VCDI |
0 |
0 |
0 |
6 |
2 |
22 |
547 |
2229 |
|
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