Validation of sea ice concentration
Bulletin date: 2017-11-02
Model vs. observations, sea ice class contingency tables
Date: 2017-10-27:
| 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 |
20902 |
6811 |
962 |
456 |
213 |
107 |
6 |
0 |
| OW |
0 |
32 |
110 |
151 |
225 |
142 |
22 |
0 |
| VODI |
0 |
4 |
23 |
53 |
164 |
218 |
67 |
0 |
| ODI |
0 |
2 |
5 |
20 |
69 |
171 |
151 |
0 |
| CDI |
0 |
0 |
5 |
6 |
44 |
153 |
281 |
0 |
| VCDI |
0 |
0 |
0 |
10 |
24 |
250 |
3122 |
3178 |
|
...date precedes bulletin
|
Date: 2017-10-31:
| 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 |
21410 |
6380 |
1087 |
419 |
219 |
198 |
73 |
0 |
| OW |
0 |
25 |
93 |
95 |
59 |
100 |
40 |
0 |
| VODI |
0 |
6 |
53 |
93 |
89 |
126 |
55 |
0 |
| ODI |
0 |
0 |
15 |
44 |
63 |
105 |
109 |
0 |
| CDI |
0 |
0 |
8 |
34 |
40 |
127 |
196 |
0 |
| VCDI |
0 |
0 |
0 |
38 |
52 |
499 |
3468 |
2741 |
|
...date precedes bulletin
|
Date: 2017-11-02:
| 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 |
19987 |
7260 |
1145 |
475 |
236 |
182 |
160 |
0 |
| OW |
0 |
15 |
169 |
100 |
163 |
37 |
40 |
0 |
| VODI |
0 |
0 |
99 |
104 |
114 |
115 |
60 |
0 |
| ODI |
0 |
0 |
28 |
71 |
51 |
84 |
118 |
0 |
| CDI |
0 |
0 |
9 |
61 |
72 |
74 |
206 |
1 |
| VCDI |
0 |
0 |
0 |
30 |
70 |
248 |
3675 |
2900 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
19987 |
7256 |
1158 |
515 |
319 |
197 |
149 |
0 |
| OW |
0 |
17 |
125 |
64 |
112 |
49 |
50 |
0 |
| VODI |
0 |
2 |
133 |
94 |
85 |
105 |
71 |
0 |
| ODI |
0 |
0 |
29 |
77 |
47 |
72 |
108 |
0 |
| CDI |
0 |
0 |
5 |
61 |
67 |
69 |
196 |
1 |
| VCDI |
0 |
0 |
0 |
30 |
76 |
248 |
3685 |
2900 |
|
Date: 2017-11-06:
| 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 |
20741 |
6109 |
985 |
478 |
275 |
296 |
31 |
0 |
| OW |
0 |
5 |
169 |
176 |
164 |
129 |
23 |
0 |
| VODI |
0 |
0 |
41 |
145 |
262 |
286 |
42 |
0 |
| ODI |
0 |
0 |
4 |
25 |
120 |
212 |
73 |
0 |
| CDI |
0 |
0 |
3 |
16 |
59 |
203 |
199 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
22 |
365 |
3166 |
3329 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20741 |
6059 |
874 |
432 |
283 |
315 |
38 |
0 |
| OW |
0 |
40 |
191 |
161 |
114 |
147 |
30 |
0 |
| VODI |
0 |
15 |
94 |
133 |
203 |
228 |
43 |
0 |
| ODI |
0 |
0 |
27 |
49 |
143 |
197 |
65 |
0 |
| CDI |
0 |
0 |
14 |
47 |
82 |
163 |
119 |
0 |
| VCDI |
0 |
0 |
2 |
24 |
77 |
441 |
3239 |
3329 |
|
Date: 2017-11-08:
| 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 |
20234 |
5888 |
1065 |
345 |
296 |
303 |
11 |
0 |
| OW |
0 |
20 |
72 |
113 |
231 |
494 |
17 |
0 |
| VODI |
0 |
3 |
33 |
33 |
105 |
509 |
53 |
0 |
| ODI |
0 |
0 |
7 |
16 |
63 |
465 |
100 |
0 |
| CDI |
0 |
0 |
0 |
5 |
20 |
290 |
283 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
5 |
359 |
3426 |
3295 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20234 |
5835 |
1006 |
349 |
322 |
332 |
13 |
0 |
| OW |
0 |
45 |
67 |
63 |
168 |
371 |
16 |
0 |
| VODI |
0 |
26 |
50 |
51 |
104 |
624 |
51 |
0 |
| ODI |
0 |
5 |
35 |
26 |
50 |
416 |
107 |
0 |
| CDI |
0 |
0 |
18 |
20 |
65 |
301 |
257 |
0 |
| VCDI |
0 |
0 |
1 |
3 |
11 |
376 |
3446 |
3295 |
|
Date: 2017-11-10:
| 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 |
19366 |
6681 |
929 |
340 |
247 |
106 |
51 |
0 |
| OW |
0 |
25 |
147 |
112 |
216 |
171 |
3 |
0 |
| VODI |
0 |
4 |
75 |
70 |
125 |
682 |
53 |
0 |
| ODI |
0 |
0 |
21 |
49 |
56 |
383 |
119 |
0 |
| CDI |
0 |
0 |
19 |
36 |
33 |
216 |
491 |
0 |
| VCDI |
0 |
0 |
1 |
21 |
20 |
243 |
3407 |
3641 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
19366 |
6634 |
930 |
380 |
384 |
225 |
50 |
0 |
| OW |
0 |
56 |
114 |
63 |
119 |
309 |
14 |
0 |
| VODI |
0 |
16 |
83 |
67 |
96 |
484 |
61 |
0 |
| ODI |
0 |
4 |
43 |
59 |
51 |
374 |
266 |
0 |
| CDI |
0 |
0 |
20 |
38 |
31 |
226 |
409 |
0 |
| VCDI |
0 |
0 |
2 |
21 |
16 |
183 |
3324 |
3641 |
|
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