Validation of sea ice concentration
Bulletin date: 2020-01-23
Model vs. observations, sea ice class contingency tables
Date: 2020-01-17:
| 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 |
13624 |
6122 |
751 |
381 |
307 |
151 |
19 |
0 |
| OW |
0 |
64 |
177 |
75 |
94 |
80 |
21 |
0 |
| VODI |
0 |
24 |
102 |
108 |
134 |
135 |
44 |
0 |
| ODI |
0 |
10 |
58 |
32 |
90 |
135 |
139 |
0 |
| CDI |
0 |
2 |
56 |
56 |
76 |
216 |
446 |
2 |
| VCDI |
0 |
0 |
49 |
106 |
175 |
450 |
6695 |
6953 |
|
...date precedes bulletin
|
Date: 2020-01-21:
| 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 |
13420 |
6110 |
1128 |
380 |
213 |
84 |
34 |
0 |
| OW |
0 |
15 |
192 |
140 |
86 |
72 |
40 |
0 |
| VODI |
0 |
1 |
73 |
116 |
142 |
128 |
86 |
0 |
| ODI |
0 |
0 |
35 |
90 |
143 |
180 |
145 |
3 |
| CDI |
0 |
0 |
15 |
43 |
110 |
165 |
555 |
90 |
| VCDI |
0 |
0 |
4 |
15 |
60 |
214 |
6546 |
7286 |
|
...date precedes bulletin
|
Date: 2020-01-23:
| 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 |
13536 |
6078 |
824 |
553 |
154 |
57 |
7 |
0 |
| OW |
0 |
86 |
196 |
190 |
98 |
70 |
16 |
0 |
| VODI |
0 |
20 |
76 |
175 |
116 |
118 |
79 |
0 |
| ODI |
0 |
6 |
56 |
129 |
112 |
99 |
142 |
24 |
| CDI |
0 |
0 |
23 |
147 |
120 |
154 |
418 |
100 |
| VCDI |
0 |
0 |
12 |
177 |
186 |
363 |
7145 |
6297 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13536 |
6081 |
824 |
565 |
160 |
61 |
9 |
0 |
| OW |
0 |
77 |
193 |
183 |
88 |
66 |
27 |
0 |
| VODI |
0 |
22 |
78 |
160 |
126 |
112 |
74 |
0 |
| ODI |
0 |
9 |
53 |
136 |
101 |
104 |
140 |
23 |
| CDI |
0 |
1 |
26 |
147 |
121 |
141 |
380 |
98 |
| VCDI |
0 |
0 |
13 |
180 |
190 |
377 |
7177 |
6300 |
|
Date: 2020-01-27:
| 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 |
13611 |
5880 |
648 |
578 |
225 |
126 |
41 |
0 |
| OW |
0 |
53 |
196 |
157 |
113 |
95 |
31 |
0 |
| VODI |
0 |
13 |
74 |
156 |
148 |
185 |
84 |
0 |
| ODI |
0 |
12 |
37 |
53 |
111 |
208 |
215 |
0 |
| CDI |
0 |
4 |
21 |
63 |
101 |
325 |
435 |
48 |
| VCDI |
0 |
0 |
27 |
50 |
93 |
310 |
6222 |
7410 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13611 |
5683 |
580 |
557 |
234 |
138 |
59 |
0 |
| OW |
0 |
183 |
133 |
112 |
83 |
85 |
55 |
0 |
| VODI |
0 |
63 |
149 |
137 |
107 |
120 |
129 |
0 |
| ODI |
0 |
13 |
52 |
80 |
79 |
169 |
180 |
0 |
| CDI |
0 |
9 |
35 |
69 |
125 |
210 |
299 |
51 |
| VCDI |
0 |
11 |
54 |
102 |
163 |
527 |
6306 |
7407 |
|
Date: 2020-01-29:
| 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 |
13672 |
5862 |
597 |
393 |
202 |
130 |
49 |
0 |
| OW |
0 |
150 |
181 |
132 |
93 |
84 |
48 |
0 |
| VODI |
0 |
57 |
154 |
125 |
100 |
153 |
140 |
0 |
| ODI |
0 |
22 |
57 |
64 |
64 |
170 |
216 |
0 |
| CDI |
0 |
19 |
44 |
42 |
66 |
244 |
460 |
27 |
| VCDI |
0 |
0 |
29 |
44 |
36 |
404 |
6508 |
7321 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13672 |
5692 |
557 |
372 |
207 |
177 |
64 |
0 |
| OW |
0 |
211 |
116 |
113 |
88 |
69 |
68 |
0 |
| VODI |
0 |
141 |
173 |
87 |
58 |
127 |
190 |
0 |
| ODI |
0 |
38 |
107 |
106 |
54 |
148 |
235 |
0 |
| CDI |
0 |
22 |
54 |
58 |
91 |
199 |
347 |
21 |
| VCDI |
0 |
6 |
55 |
64 |
63 |
465 |
6517 |
7327 |
|
Date: 2020-01-31:
| 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 |
13641 |
5584 |
566 |
366 |
213 |
163 |
97 |
0 |
| OW |
0 |
93 |
227 |
92 |
69 |
97 |
94 |
0 |
| VODI |
0 |
31 |
178 |
121 |
116 |
165 |
141 |
0 |
| ODI |
0 |
7 |
88 |
96 |
105 |
162 |
274 |
1 |
| CDI |
0 |
4 |
54 |
58 |
115 |
230 |
671 |
27 |
| VCDI |
0 |
4 |
48 |
57 |
70 |
239 |
6337 |
7458 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13641 |
5507 |
561 |
367 |
213 |
199 |
112 |
0 |
| OW |
0 |
102 |
183 |
91 |
75 |
100 |
96 |
0 |
| VODI |
0 |
67 |
173 |
99 |
109 |
130 |
196 |
0 |
| ODI |
0 |
28 |
100 |
85 |
87 |
147 |
300 |
2 |
| CDI |
0 |
11 |
76 |
82 |
111 |
198 |
485 |
46 |
| VCDI |
0 |
8 |
68 |
66 |
93 |
282 |
6425 |
7438 |
|
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