Validation of sea ice concentration
Bulletin date: 2019-03-28
Model vs. observations, sea ice class contingency tables
Date: 2019-03-22:
| 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 |
13213 |
5944 |
708 |
335 |
161 |
97 |
37 |
0 |
| OW |
0 |
77 |
140 |
163 |
167 |
126 |
60 |
0 |
| VODI |
0 |
21 |
80 |
189 |
205 |
154 |
158 |
0 |
| ODI |
0 |
2 |
22 |
84 |
154 |
190 |
271 |
8 |
| CDI |
0 |
0 |
10 |
53 |
130 |
262 |
706 |
109 |
| VCDI |
0 |
0 |
1 |
35 |
100 |
433 |
7094 |
6460 |
|
...date precedes bulletin
|
Date: 2019-03-26:
| 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 |
13221 |
5879 |
1006 |
535 |
113 |
58 |
70 |
0 |
| OW |
0 |
16 |
267 |
280 |
117 |
76 |
85 |
0 |
| VODI |
0 |
9 |
161 |
314 |
178 |
139 |
140 |
0 |
| ODI |
0 |
0 |
43 |
193 |
161 |
143 |
270 |
6 |
| CDI |
0 |
0 |
25 |
158 |
204 |
286 |
684 |
20 |
| VCDI |
0 |
0 |
25 |
116 |
138 |
422 |
7462 |
5139 |
|
...date precedes bulletin
|
Date: 2019-03-28:
| 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 |
13380 |
5915 |
1000 |
430 |
68 |
42 |
74 |
0 |
| OW |
0 |
24 |
291 |
287 |
109 |
60 |
75 |
0 |
| VODI |
0 |
8 |
134 |
308 |
153 |
162 |
142 |
0 |
| ODI |
0 |
2 |
57 |
159 |
131 |
139 |
272 |
9 |
| CDI |
0 |
0 |
21 |
115 |
137 |
179 |
692 |
44 |
| VCDI |
0 |
0 |
11 |
120 |
136 |
426 |
7720 |
5127 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13380 |
5909 |
1043 |
459 |
81 |
45 |
95 |
0 |
| OW |
0 |
25 |
246 |
279 |
95 |
67 |
79 |
0 |
| VODI |
0 |
13 |
132 |
288 |
159 |
154 |
135 |
2 |
| ODI |
0 |
2 |
59 |
164 |
138 |
139 |
254 |
10 |
| CDI |
0 |
0 |
22 |
118 |
132 |
186 |
665 |
45 |
| VCDI |
0 |
0 |
12 |
111 |
129 |
417 |
7747 |
5123 |
|
Date: 2019-04-01:
| 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 |
13055 |
6196 |
1202 |
350 |
133 |
104 |
84 |
0 |
| OW |
0 |
15 |
370 |
233 |
138 |
76 |
70 |
0 |
| VODI |
0 |
0 |
260 |
341 |
212 |
167 |
154 |
0 |
| ODI |
0 |
0 |
46 |
146 |
186 |
192 |
296 |
6 |
| CDI |
0 |
0 |
19 |
72 |
151 |
250 |
755 |
17 |
| VCDI |
0 |
0 |
19 |
53 |
90 |
307 |
6930 |
5464 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13055 |
6157 |
1070 |
371 |
155 |
126 |
120 |
0 |
| OW |
0 |
48 |
359 |
177 |
95 |
54 |
88 |
0 |
| VODI |
0 |
6 |
295 |
250 |
165 |
139 |
147 |
0 |
| ODI |
0 |
0 |
124 |
172 |
129 |
148 |
206 |
7 |
| CDI |
0 |
0 |
34 |
108 |
156 |
193 |
548 |
18 |
| VCDI |
0 |
0 |
34 |
117 |
210 |
436 |
7180 |
5462 |
|
Date: 2019-04-03:
| 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 |
12751 |
6035 |
1466 |
520 |
300 |
122 |
108 |
0 |
| OW |
0 |
1 |
219 |
301 |
147 |
95 |
71 |
0 |
| VODI |
0 |
0 |
78 |
298 |
229 |
250 |
162 |
0 |
| ODI |
0 |
0 |
52 |
110 |
146 |
180 |
284 |
4 |
| CDI |
0 |
0 |
22 |
61 |
127 |
202 |
723 |
13 |
| VCDI |
0 |
0 |
30 |
75 |
122 |
235 |
7864 |
4756 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12751 |
5986 |
1236 |
465 |
269 |
141 |
147 |
0 |
| OW |
0 |
49 |
346 |
210 |
114 |
88 |
66 |
0 |
| VODI |
0 |
1 |
148 |
290 |
182 |
202 |
184 |
0 |
| ODI |
0 |
0 |
59 |
169 |
142 |
150 |
254 |
4 |
| CDI |
0 |
0 |
41 |
101 |
144 |
207 |
585 |
24 |
| VCDI |
0 |
0 |
37 |
130 |
220 |
296 |
7976 |
4745 |
|
Date: 2019-04-05:
| 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 |
12575 |
6329 |
1178 |
565 |
375 |
144 |
80 |
0 |
| OW |
0 |
21 |
247 |
254 |
149 |
104 |
100 |
0 |
| VODI |
0 |
0 |
90 |
217 |
215 |
244 |
176 |
0 |
| ODI |
0 |
0 |
36 |
151 |
160 |
186 |
308 |
1 |
| CDI |
0 |
0 |
24 |
86 |
150 |
251 |
920 |
37 |
| VCDI |
0 |
0 |
26 |
57 |
136 |
227 |
7750 |
4590 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12575 |
6258 |
1079 |
565 |
372 |
175 |
134 |
0 |
| OW |
0 |
88 |
226 |
196 |
113 |
74 |
75 |
0 |
| VODI |
0 |
4 |
168 |
232 |
194 |
205 |
214 |
0 |
| ODI |
0 |
0 |
50 |
125 |
157 |
168 |
273 |
0 |
| CDI |
0 |
0 |
44 |
87 |
152 |
240 |
705 |
20 |
| VCDI |
0 |
0 |
34 |
125 |
197 |
294 |
7933 |
4608 |
|
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