Validation of sea ice concentration - European sector
Bulletin date: 2023-12-21
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-12-15:
| 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 |
78452 |
11181 |
287 |
378 |
222 |
205 |
194 |
0 |
| OW |
56 |
377 |
121 |
284 |
180 |
69 |
17 |
0 |
| VODI |
0 |
179 |
80 |
291 |
326 |
159 |
33 |
0 |
| ODI |
0 |
83 |
37 |
166 |
247 |
162 |
37 |
0 |
| CDI |
0 |
52 |
35 |
129 |
320 |
310 |
103 |
0 |
| VCDI |
0 |
65 |
39 |
109 |
262 |
3144 |
8883 |
1826 |
|
...date precedes bulletin
|
Date: 2023-12-17:
| 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 |
78501 |
10905 |
247 |
324 |
235 |
205 |
248 |
0 |
| OW |
61 |
520 |
106 |
209 |
125 |
73 |
26 |
0 |
| VODI |
0 |
275 |
81 |
240 |
290 |
159 |
46 |
0 |
| ODI |
0 |
129 |
30 |
141 |
255 |
133 |
49 |
0 |
| CDI |
0 |
96 |
41 |
93 |
185 |
340 |
106 |
0 |
| VCDI |
0 |
109 |
53 |
166 |
352 |
3122 |
8104 |
2720 |
|
...date precedes bulletin
|
Date: 2023-12-19:
| 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 |
78126 |
10939 |
290 |
407 |
189 |
234 |
246 |
0 |
| OW |
61 |
333 |
124 |
287 |
124 |
66 |
11 |
0 |
| VODI |
0 |
181 |
79 |
327 |
273 |
130 |
10 |
0 |
| ODI |
0 |
79 |
35 |
135 |
360 |
143 |
14 |
0 |
| CDI |
0 |
54 |
36 |
143 |
332 |
497 |
103 |
0 |
| VCDI |
0 |
21 |
19 |
91 |
374 |
3067 |
7956 |
3204 |
|
...date precedes bulletin
|
Date: 2023-12-21:
| 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 |
76334 |
11904 |
351 |
393 |
200 |
203 |
276 |
0 |
| OW |
62 |
305 |
90 |
285 |
190 |
63 |
22 |
0 |
| VODI |
0 |
180 |
61 |
208 |
402 |
109 |
26 |
0 |
| ODI |
0 |
71 |
42 |
84 |
346 |
166 |
16 |
0 |
| CDI |
0 |
75 |
25 |
77 |
265 |
406 |
84 |
0 |
| VCDI |
0 |
30 |
48 |
158 |
498 |
4064 |
7929 |
3052 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
76334 |
11912 |
349 |
419 |
213 |
215 |
281 |
0 |
| OW |
62 |
295 |
97 |
262 |
189 |
62 |
20 |
0 |
| VODI |
0 |
177 |
56 |
197 |
431 |
112 |
25 |
0 |
| ODI |
0 |
69 |
38 |
93 |
340 |
196 |
16 |
0 |
| CDI |
0 |
76 |
29 |
74 |
248 |
395 |
78 |
0 |
| VCDI |
0 |
36 |
48 |
160 |
480 |
4031 |
7933 |
3052 |
|
Date: 2023-12-23:
| 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 |
75733 |
12113 |
338 |
384 |
237 |
181 |
220 |
0 |
| OW |
67 |
383 |
61 |
182 |
211 |
55 |
22 |
0 |
| VODI |
1 |
227 |
73 |
161 |
318 |
142 |
13 |
0 |
| ODI |
0 |
103 |
32 |
94 |
269 |
182 |
11 |
0 |
| CDI |
0 |
68 |
22 |
61 |
233 |
405 |
44 |
0 |
| VCDI |
0 |
85 |
44 |
198 |
489 |
4107 |
8228 |
3303 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
75727 |
12178 |
340 |
389 |
251 |
197 |
217 |
0 |
| OW |
74 |
326 |
67 |
194 |
204 |
49 |
25 |
0 |
| VODI |
0 |
216 |
65 |
146 |
349 |
140 |
15 |
0 |
| ODI |
0 |
98 |
30 |
93 |
270 |
214 |
9 |
0 |
| CDI |
0 |
72 |
23 |
59 |
224 |
417 |
42 |
0 |
| VCDI |
0 |
89 |
45 |
199 |
459 |
4055 |
8230 |
3303 |
|
Date: 2023-12-25:
| 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 |
76108 |
12082 |
246 |
267 |
131 |
200 |
175 |
0 |
| OW |
65 |
325 |
122 |
224 |
115 |
31 |
9 |
0 |
| VODI |
2 |
157 |
70 |
226 |
284 |
109 |
19 |
0 |
| ODI |
1 |
86 |
21 |
109 |
256 |
246 |
37 |
0 |
| CDI |
0 |
74 |
46 |
92 |
200 |
653 |
112 |
0 |
| VCDI |
0 |
6 |
16 |
77 |
271 |
3371 |
8172 |
4287 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
76102 |
11698 |
258 |
304 |
176 |
251 |
200 |
0 |
| OW |
73 |
400 |
75 |
186 |
127 |
57 |
27 |
0 |
| VODI |
1 |
269 |
77 |
175 |
203 |
182 |
47 |
0 |
| ODI |
0 |
120 |
28 |
105 |
227 |
227 |
28 |
0 |
| CDI |
0 |
104 |
18 |
64 |
151 |
369 |
46 |
0 |
| VCDI |
0 |
139 |
65 |
161 |
373 |
3524 |
8176 |
4287 |
|
Date: 2023-12-27:
| 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 |
74783 |
13395 |
168 |
211 |
118 |
147 |
189 |
0 |
| OW |
70 |
561 |
107 |
127 |
72 |
13 |
24 |
0 |
| VODI |
2 |
329 |
133 |
194 |
153 |
43 |
18 |
0 |
| ODI |
2 |
132 |
42 |
189 |
202 |
82 |
23 |
0 |
| CDI |
0 |
77 |
45 |
132 |
279 |
238 |
43 |
0 |
| VCDI |
0 |
25 |
37 |
161 |
691 |
4222 |
7916 |
3705 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
74765 |
12901 |
156 |
199 |
162 |
172 |
246 |
0 |
| OW |
91 |
635 |
67 |
96 |
54 |
47 |
20 |
0 |
| VODI |
1 |
540 |
108 |
133 |
121 |
98 |
19 |
0 |
| ODI |
0 |
239 |
89 |
207 |
160 |
85 |
13 |
0 |
| CDI |
0 |
142 |
49 |
146 |
236 |
151 |
24 |
0 |
| VCDI |
0 |
62 |
63 |
233 |
782 |
4192 |
7891 |
3705 |
|
Date: 2023-12-29:
| 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 |
75759 |
12033 |
224 |
242 |
105 |
106 |
239 |
0 |
| OW |
75 |
595 |
99 |
161 |
69 |
18 |
38 |
0 |
| VODI |
0 |
363 |
107 |
203 |
156 |
53 |
30 |
0 |
| ODI |
0 |
153 |
56 |
168 |
207 |
74 |
30 |
0 |
| CDI |
0 |
92 |
33 |
136 |
265 |
242 |
104 |
0 |
| VCDI |
0 |
79 |
43 |
173 |
738 |
3782 |
8478 |
3572 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
75726 |
11477 |
199 |
240 |
134 |
130 |
304 |
0 |
| OW |
107 |
641 |
78 |
116 |
45 |
49 |
47 |
0 |
| VODI |
1 |
598 |
80 |
157 |
113 |
77 |
63 |
0 |
| ODI |
0 |
287 |
83 |
149 |
162 |
78 |
44 |
0 |
| CDI |
0 |
189 |
55 |
181 |
255 |
180 |
70 |
2 |
| VCDI |
0 |
123 |
67 |
240 |
831 |
3761 |
8391 |
3570 |
|
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