Validation of sea ice concentration
Bulletin date: 2018-03-15
Model vs. observations, sea ice class contingency tables
Date: 2018-03-09:
| 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 |
13745 |
6525 |
1037 |
328 |
185 |
88 |
1 |
0 |
| OW |
0 |
33 |
192 |
141 |
97 |
73 |
17 |
0 |
| VODI |
0 |
6 |
99 |
144 |
126 |
172 |
82 |
0 |
| ODI |
0 |
0 |
11 |
103 |
109 |
169 |
146 |
0 |
| CDI |
0 |
0 |
0 |
30 |
71 |
223 |
473 |
32 |
| VCDI |
0 |
0 |
1 |
8 |
40 |
636 |
8466 |
4550 |
|
...date precedes bulletin
|
Date: 2018-03-13:
| 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 |
13758 |
6349 |
909 |
441 |
168 |
87 |
14 |
0 |
| OW |
0 |
12 |
131 |
172 |
94 |
88 |
16 |
0 |
| VODI |
0 |
1 |
54 |
145 |
120 |
148 |
75 |
0 |
| ODI |
0 |
0 |
4 |
52 |
111 |
189 |
158 |
0 |
| CDI |
0 |
0 |
1 |
24 |
59 |
271 |
512 |
30 |
| VCDI |
0 |
0 |
0 |
8 |
21 |
430 |
8382 |
5125 |
|
...date precedes bulletin
|
Date: 2018-03-15:
| 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 |
13815 |
6173 |
853 |
341 |
150 |
146 |
38 |
0 |
| OW |
0 |
14 |
154 |
123 |
83 |
95 |
28 |
0 |
| VODI |
0 |
0 |
84 |
95 |
110 |
167 |
89 |
0 |
| ODI |
0 |
0 |
18 |
46 |
71 |
170 |
197 |
1 |
| CDI |
0 |
0 |
11 |
34 |
50 |
193 |
619 |
57 |
| VCDI |
0 |
0 |
2 |
11 |
21 |
228 |
7692 |
6180 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13815 |
6179 |
859 |
355 |
159 |
159 |
42 |
0 |
| OW |
0 |
8 |
164 |
116 |
83 |
96 |
24 |
0 |
| VODI |
0 |
0 |
72 |
95 |
104 |
170 |
96 |
0 |
| ODI |
0 |
0 |
16 |
43 |
66 |
164 |
208 |
0 |
| CDI |
0 |
0 |
9 |
31 |
49 |
176 |
610 |
59 |
| VCDI |
0 |
0 |
2 |
10 |
24 |
234 |
7683 |
6179 |
|
Date: 2018-03-19:
| 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 |
13757 |
6060 |
1124 |
441 |
258 |
42 |
0 |
0 |
| OW |
0 |
29 |
185 |
130 |
120 |
81 |
1 |
0 |
| VODI |
0 |
10 |
95 |
158 |
167 |
169 |
10 |
0 |
| ODI |
0 |
7 |
54 |
108 |
153 |
232 |
81 |
4 |
| CDI |
0 |
0 |
16 |
51 |
139 |
397 |
546 |
86 |
| VCDI |
0 |
0 |
1 |
32 |
115 |
780 |
6020 |
6500 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13757 |
6049 |
1026 |
352 |
202 |
42 |
0 |
0 |
| OW |
0 |
25 |
193 |
103 |
133 |
49 |
1 |
0 |
| VODI |
0 |
22 |
127 |
145 |
124 |
109 |
7 |
0 |
| ODI |
0 |
8 |
70 |
113 |
126 |
166 |
35 |
7 |
| CDI |
0 |
2 |
50 |
115 |
161 |
370 |
401 |
84 |
| VCDI |
0 |
0 |
9 |
92 |
206 |
965 |
6214 |
6499 |
|
Date: 2018-03-21:
| 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 |
13418 |
6375 |
972 |
477 |
150 |
53 |
3 |
0 |
| OW |
0 |
21 |
139 |
197 |
93 |
74 |
9 |
0 |
| VODI |
0 |
11 |
71 |
133 |
163 |
124 |
33 |
0 |
| ODI |
0 |
2 |
26 |
78 |
117 |
162 |
104 |
0 |
| CDI |
0 |
2 |
19 |
72 |
102 |
273 |
526 |
52 |
| VCDI |
0 |
0 |
8 |
50 |
91 |
552 |
6780 |
6627 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13418 |
6326 |
855 |
414 |
121 |
51 |
5 |
0 |
| OW |
0 |
48 |
136 |
167 |
74 |
55 |
8 |
0 |
| VODI |
0 |
26 |
103 |
161 |
136 |
98 |
35 |
0 |
| ODI |
0 |
9 |
59 |
70 |
131 |
135 |
91 |
1 |
| CDI |
0 |
2 |
47 |
67 |
116 |
255 |
416 |
54 |
| VCDI |
0 |
0 |
35 |
128 |
138 |
644 |
6900 |
6624 |
|
Date: 2018-03-23:
| 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 |
13794 |
6321 |
768 |
357 |
95 |
37 |
16 |
0 |
| OW |
0 |
22 |
170 |
140 |
93 |
57 |
23 |
0 |
| VODI |
0 |
11 |
86 |
126 |
112 |
105 |
47 |
0 |
| ODI |
0 |
1 |
32 |
81 |
108 |
159 |
163 |
9 |
| CDI |
0 |
0 |
9 |
51 |
124 |
295 |
591 |
92 |
| VCDI |
0 |
0 |
2 |
43 |
74 |
392 |
7399 |
6154 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13794 |
6266 |
662 |
283 |
78 |
29 |
23 |
0 |
| OW |
0 |
51 |
173 |
130 |
77 |
44 |
14 |
0 |
| VODI |
0 |
27 |
127 |
136 |
111 |
95 |
48 |
0 |
| ODI |
0 |
7 |
56 |
99 |
87 |
131 |
153 |
1 |
| CDI |
0 |
2 |
34 |
62 |
129 |
242 |
449 |
68 |
| VCDI |
0 |
2 |
15 |
88 |
124 |
504 |
7552 |
6186 |
|
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