Validation of sea ice concentration
Bulletin date: 2017-09-21
Model vs. observations, sea ice class contingency tables
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 |
|
...date precedes bulletin
|
Date: 2017-09-19:
| 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 |
24950 |
5588 |
923 |
408 |
196 |
30 |
0 |
0 |
| OW |
0 |
0 |
83 |
80 |
100 |
30 |
3 |
0 |
| VODI |
0 |
0 |
15 |
64 |
156 |
119 |
26 |
0 |
| ODI |
0 |
0 |
0 |
9 |
149 |
232 |
211 |
0 |
| CDI |
0 |
0 |
0 |
0 |
16 |
258 |
1510 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
36 |
1631 |
1336 |
|
...date precedes bulletin
|
Date: 2017-09-21:
| 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 |
25047 |
5554 |
631 |
427 |
97 |
13 |
0 |
0 |
| OW |
0 |
10 |
74 |
134 |
60 |
23 |
1 |
0 |
| VODI |
0 |
0 |
22 |
128 |
139 |
62 |
17 |
0 |
| ODI |
0 |
0 |
5 |
52 |
172 |
149 |
95 |
0 |
| CDI |
0 |
0 |
0 |
10 |
70 |
398 |
424 |
6 |
| VCDI |
0 |
0 |
0 |
1 |
14 |
193 |
2075 |
2056 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
25047 |
5560 |
654 |
455 |
93 |
16 |
0 |
0 |
| OW |
0 |
4 |
50 |
115 |
81 |
20 |
2 |
0 |
| VODI |
0 |
0 |
22 |
109 |
119 |
58 |
17 |
0 |
| ODI |
0 |
0 |
6 |
55 |
142 |
164 |
108 |
0 |
| CDI |
0 |
0 |
0 |
14 |
87 |
415 |
387 |
5 |
| VCDI |
0 |
0 |
0 |
4 |
30 |
165 |
2098 |
2057 |
|
Date: 2017-09-25:
| 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 |
25297 |
5050 |
610 |
472 |
154 |
27 |
0 |
0 |
| OW |
0 |
1 |
16 |
85 |
117 |
30 |
0 |
0 |
| VODI |
0 |
0 |
13 |
50 |
122 |
85 |
13 |
0 |
| ODI |
0 |
0 |
0 |
25 |
87 |
200 |
70 |
0 |
| CDI |
0 |
0 |
0 |
2 |
55 |
374 |
496 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
10 |
226 |
2289 |
2183 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
25297 |
5047 |
577 |
468 |
163 |
31 |
0 |
0 |
| OW |
0 |
4 |
49 |
68 |
90 |
47 |
0 |
0 |
| VODI |
0 |
0 |
11 |
65 |
142 |
98 |
8 |
0 |
| ODI |
0 |
0 |
2 |
20 |
66 |
136 |
75 |
0 |
| CDI |
0 |
0 |
0 |
13 |
58 |
305 |
377 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
26 |
325 |
2408 |
2183 |
|
Date: 2017-09-27:
| 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 |
24681 |
5603 |
676 |
383 |
205 |
78 |
0 |
0 |
| OW |
0 |
0 |
13 |
59 |
89 |
81 |
0 |
0 |
| VODI |
0 |
0 |
2 |
41 |
67 |
150 |
30 |
0 |
| ODI |
0 |
0 |
0 |
10 |
19 |
149 |
110 |
0 |
| CDI |
0 |
0 |
0 |
2 |
17 |
236 |
562 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
239 |
2246 |
2409 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24681 |
5603 |
632 |
359 |
197 |
84 |
0 |
0 |
| OW |
0 |
0 |
56 |
65 |
67 |
75 |
1 |
0 |
| VODI |
0 |
0 |
2 |
46 |
90 |
164 |
30 |
0 |
| ODI |
0 |
0 |
1 |
15 |
24 |
123 |
137 |
0 |
| CDI |
0 |
0 |
0 |
10 |
18 |
195 |
492 |
4 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
292 |
2288 |
2405 |
|
Date: 2017-09-29:
| 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 |
24253 |
5970 |
856 |
387 |
137 |
38 |
3 |
0 |
| OW |
0 |
0 |
26 |
83 |
94 |
51 |
11 |
0 |
| VODI |
0 |
0 |
1 |
49 |
101 |
110 |
39 |
0 |
| ODI |
0 |
0 |
0 |
9 |
42 |
113 |
138 |
0 |
| CDI |
0 |
0 |
0 |
0 |
15 |
126 |
566 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
156 |
1735 |
3049 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24253 |
5964 |
804 |
368 |
119 |
33 |
2 |
0 |
| OW |
0 |
6 |
70 |
67 |
87 |
42 |
7 |
0 |
| VODI |
0 |
0 |
9 |
68 |
104 |
118 |
46 |
0 |
| ODI |
0 |
0 |
0 |
14 |
50 |
110 |
142 |
0 |
| CDI |
0 |
0 |
0 |
11 |
21 |
112 |
506 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
9 |
179 |
1789 |
3049 |
|
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