Validation of sea ice concentration
Bulletin date: 2017-09-07
Model vs. observations, sea ice class contingency tables
Date: 2017-09-01:
| 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 |
23972 |
4751 |
1238 |
950 |
338 |
47 |
7 |
0 |
| OW |
0 |
13 |
41 |
170 |
120 |
46 |
10 |
0 |
| VODI |
0 |
3 |
20 |
116 |
361 |
119 |
40 |
0 |
| ODI |
0 |
0 |
4 |
18 |
162 |
580 |
814 |
0 |
| CDI |
0 |
0 |
0 |
0 |
7 |
126 |
1987 |
46 |
| VCDI |
0 |
0 |
0 |
1 |
3 |
5 |
562 |
1482 |
|
...date precedes bulletin
|
Date: 2017-09-05:
| 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 |
24077 |
5011 |
1196 |
1026 |
187 |
27 |
9 |
0 |
| OW |
0 |
7 |
31 |
143 |
134 |
43 |
10 |
0 |
| VODI |
0 |
5 |
13 |
118 |
319 |
113 |
42 |
0 |
| ODI |
0 |
0 |
1 |
23 |
143 |
519 |
790 |
2 |
| CDI |
0 |
0 |
0 |
0 |
8 |
146 |
1612 |
170 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
9 |
649 |
1574 |
|
...date precedes bulletin
|
Date: 2017-09-07:
| 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 |
24333 |
4929 |
1215 |
913 |
162 |
35 |
7 |
0 |
| OW |
0 |
5 |
36 |
136 |
150 |
49 |
18 |
0 |
| VODI |
0 |
0 |
14 |
96 |
337 |
118 |
49 |
0 |
| ODI |
0 |
0 |
0 |
22 |
127 |
511 |
623 |
0 |
| CDI |
0 |
0 |
0 |
4 |
14 |
133 |
1752 |
146 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
7 |
595 |
1621 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24333 |
4932 |
1213 |
929 |
199 |
46 |
9 |
0 |
| OW |
0 |
2 |
33 |
106 |
96 |
37 |
14 |
0 |
| VODI |
0 |
0 |
19 |
107 |
324 |
114 |
43 |
0 |
| ODI |
0 |
0 |
0 |
24 |
157 |
540 |
757 |
1 |
| CDI |
0 |
0 |
0 |
5 |
14 |
109 |
1622 |
152 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
7 |
599 |
1614 |
|
Date: 2017-09-11:
| 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 |
24670 |
5308 |
1009 |
717 |
227 |
13 |
3 |
0 |
| OW |
0 |
2 |
62 |
110 |
175 |
36 |
10 |
0 |
| VODI |
0 |
0 |
17 |
91 |
300 |
125 |
46 |
0 |
| ODI |
0 |
0 |
1 |
23 |
138 |
552 |
600 |
0 |
| CDI |
0 |
0 |
0 |
4 |
23 |
167 |
1857 |
3 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
14 |
682 |
1174 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24670 |
5265 |
972 |
628 |
157 |
37 |
10 |
0 |
| OW |
0 |
45 |
84 |
126 |
136 |
29 |
20 |
0 |
| VODI |
0 |
0 |
30 |
148 |
326 |
109 |
50 |
0 |
| ODI |
0 |
0 |
3 |
33 |
205 |
469 |
539 |
0 |
| CDI |
0 |
0 |
0 |
9 |
37 |
252 |
1617 |
1 |
| VCDI |
0 |
0 |
0 |
1 |
2 |
11 |
962 |
1176 |
|
Date: 2017-09-13:
| 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 |
25067 |
5080 |
1111 |
603 |
195 |
10 |
2 |
0 |
| OW |
0 |
3 |
45 |
106 |
174 |
69 |
5 |
0 |
| VODI |
0 |
0 |
11 |
99 |
216 |
175 |
45 |
0 |
| ODI |
0 |
0 |
2 |
15 |
171 |
438 |
458 |
0 |
| CDI |
0 |
0 |
0 |
8 |
31 |
286 |
1774 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
13 |
761 |
1186 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
25067 |
5010 |
1024 |
512 |
50 |
24 |
2 |
0 |
| OW |
0 |
70 |
105 |
152 |
150 |
57 |
10 |
0 |
| VODI |
0 |
3 |
35 |
132 |
352 |
167 |
49 |
0 |
| ODI |
0 |
0 |
3 |
17 |
164 |
409 |
477 |
0 |
| CDI |
0 |
0 |
2 |
11 |
57 |
294 |
1353 |
0 |
| VCDI |
0 |
0 |
0 |
7 |
14 |
40 |
1154 |
1186 |
|
Date: 2017-09-15:
| 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 |
24985 |
5330 |
999 |
503 |
159 |
11 |
3 |
0 |
| OW |
0 |
52 |
79 |
135 |
152 |
49 |
7 |
0 |
| VODI |
0 |
12 |
23 |
83 |
242 |
115 |
61 |
0 |
| ODI |
0 |
0 |
2 |
28 |
179 |
338 |
385 |
0 |
| CDI |
0 |
0 |
0 |
0 |
24 |
301 |
1841 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
21 |
820 |
1220 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24985 |
5234 |
953 |
387 |
49 |
14 |
2 |
0 |
| OW |
0 |
109 |
83 |
168 |
98 |
36 |
8 |
0 |
| VODI |
0 |
51 |
54 |
161 |
336 |
135 |
67 |
0 |
| ODI |
0 |
0 |
7 |
16 |
188 |
275 |
382 |
0 |
| CDI |
0 |
0 |
6 |
17 |
72 |
316 |
1409 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
13 |
59 |
1249 |
1220 |
|
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