Validation of sea ice concentration - European sector
Bulletin date: 2023-12-28
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-12-22:
| 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 |
66211 |
10744 |
172 |
135 |
35 |
0 |
0 |
0 |
| OW |
802 |
792 |
167 |
259 |
129 |
10 |
0 |
0 |
| VODI |
1937 |
256 |
155 |
330 |
254 |
55 |
12 |
0 |
| ODI |
1725 |
77 |
59 |
210 |
349 |
158 |
30 |
0 |
| CDI |
0 |
12 |
43 |
226 |
695 |
1616 |
887 |
0 |
| VCDI |
0 |
0 |
1 |
36 |
348 |
3513 |
7324 |
3098 |
|
...date precedes bulletin
|
Date: 2023-12-24:
| 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 |
66598 |
10112 |
110 |
67 |
11 |
2 |
0 |
0 |
| OW |
804 |
843 |
177 |
241 |
102 |
17 |
0 |
0 |
| VODI |
1897 |
340 |
144 |
269 |
249 |
63 |
0 |
0 |
| ODI |
1771 |
142 |
70 |
178 |
313 |
130 |
11 |
0 |
| CDI |
0 |
77 |
78 |
227 |
504 |
1206 |
728 |
0 |
| VCDI |
0 |
0 |
1 |
49 |
312 |
3418 |
7840 |
3761 |
|
...date precedes bulletin
|
Date: 2023-12-26:
| 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 |
66284 |
10463 |
87 |
79 |
16 |
0 |
0 |
0 |
| OW |
859 |
1185 |
123 |
149 |
58 |
24 |
0 |
0 |
| VODI |
1873 |
415 |
213 |
296 |
154 |
51 |
3 |
0 |
| ODI |
1809 |
51 |
78 |
258 |
307 |
106 |
6 |
0 |
| CDI |
0 |
24 |
35 |
186 |
520 |
1041 |
313 |
0 |
| VCDI |
0 |
2 |
2 |
39 |
410 |
3406 |
7938 |
3999 |
|
...date precedes bulletin
|
Date: 2023-12-28:
| 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 |
66097 |
10566 |
75 |
73 |
8 |
1 |
0 |
0 |
| OW |
899 |
1155 |
111 |
140 |
68 |
24 |
0 |
0 |
| VODI |
1849 |
517 |
191 |
224 |
116 |
65 |
4 |
0 |
| ODI |
1836 |
148 |
63 |
245 |
255 |
112 |
10 |
0 |
| CDI |
0 |
82 |
51 |
198 |
442 |
891 |
433 |
0 |
| VCDI |
0 |
15 |
36 |
113 |
500 |
3490 |
8523 |
3236 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
66093 |
10642 |
85 |
76 |
6 |
1 |
0 |
0 |
| OW |
904 |
1090 |
107 |
134 |
68 |
25 |
0 |
0 |
| VODI |
1846 |
521 |
175 |
221 |
120 |
67 |
4 |
0 |
| ODI |
1838 |
138 |
71 |
254 |
249 |
103 |
10 |
0 |
| CDI |
0 |
78 |
52 |
209 |
455 |
909 |
440 |
0 |
| VCDI |
0 |
14 |
37 |
99 |
491 |
3478 |
8516 |
3236 |
|
Date: 2023-12-30:
| 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 |
65536 |
10851 |
123 |
110 |
30 |
2 |
0 |
0 |
| OW |
934 |
992 |
107 |
162 |
84 |
22 |
4 |
0 |
| VODI |
1828 |
540 |
161 |
245 |
130 |
66 |
10 |
0 |
| ODI |
1859 |
225 |
52 |
202 |
301 |
120 |
20 |
0 |
| CDI |
0 |
190 |
68 |
200 |
451 |
889 |
615 |
0 |
| VCDI |
0 |
89 |
66 |
231 |
586 |
3250 |
8268 |
3243 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
65529 |
10894 |
122 |
128 |
32 |
1 |
0 |
0 |
| OW |
942 |
952 |
114 |
144 |
84 |
26 |
4 |
0 |
| VODI |
1825 |
537 |
148 |
239 |
127 |
64 |
11 |
0 |
| ODI |
1861 |
215 |
62 |
198 |
290 |
105 |
22 |
0 |
| CDI |
0 |
206 |
65 |
201 |
463 |
885 |
644 |
0 |
| VCDI |
0 |
83 |
66 |
240 |
586 |
3268 |
8236 |
3243 |
|
Date: 2024-01-01:
| 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 |
64619 |
11751 |
138 |
123 |
13 |
0 |
0 |
0 |
| OW |
934 |
1491 |
136 |
123 |
84 |
8 |
0 |
0 |
| VODI |
1819 |
416 |
213 |
330 |
183 |
53 |
12 |
0 |
| ODI |
1873 |
125 |
54 |
195 |
302 |
188 |
18 |
0 |
| CDI |
0 |
194 |
84 |
241 |
527 |
1265 |
311 |
0 |
| VCDI |
0 |
14 |
23 |
127 |
305 |
2095 |
10538 |
1937 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
64611 |
11298 |
138 |
133 |
36 |
0 |
0 |
0 |
| OW |
931 |
1081 |
94 |
101 |
108 |
10 |
1 |
0 |
| VODI |
1807 |
712 |
149 |
196 |
141 |
59 |
9 |
0 |
| ODI |
1896 |
369 |
83 |
185 |
209 |
141 |
16 |
0 |
| CDI |
0 |
332 |
83 |
251 |
492 |
1006 |
423 |
0 |
| VCDI |
0 |
199 |
101 |
273 |
428 |
2393 |
10430 |
1937 |
|
Date: 2024-01-03:
| 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 |
64144 |
11907 |
118 |
85 |
6 |
0 |
0 |
0 |
| OW |
958 |
1179 |
177 |
267 |
69 |
7 |
0 |
0 |
| VODI |
1857 |
446 |
191 |
329 |
168 |
61 |
13 |
0 |
| ODI |
1896 |
193 |
74 |
250 |
282 |
98 |
20 |
0 |
| CDI |
0 |
63 |
65 |
282 |
780 |
923 |
427 |
0 |
| VCDI |
0 |
7 |
5 |
84 |
335 |
2454 |
10890 |
1752 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
64229 |
11068 |
108 |
61 |
6 |
0 |
0 |
0 |
| OW |
886 |
1233 |
124 |
219 |
52 |
7 |
0 |
0 |
| VODI |
1815 |
787 |
131 |
237 |
156 |
46 |
6 |
0 |
| ODI |
1925 |
374 |
118 |
277 |
215 |
87 |
19 |
0 |
| CDI |
0 |
281 |
112 |
367 |
806 |
660 |
472 |
0 |
| VCDI |
0 |
52 |
37 |
136 |
405 |
2743 |
10853 |
1752 |
|
Date: 2024-01-05:
| 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 |
62338 |
12504 |
370 |
138 |
13 |
1 |
0 |
0 |
| OW |
891 |
1101 |
206 |
265 |
123 |
18 |
0 |
0 |
| VODI |
1892 |
469 |
162 |
314 |
296 |
81 |
16 |
0 |
| ODI |
1978 |
218 |
66 |
202 |
307 |
176 |
15 |
0 |
| CDI |
0 |
174 |
56 |
246 |
559 |
1025 |
688 |
4 |
| VCDI |
0 |
0 |
6 |
71 |
248 |
2367 |
10788 |
2470 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
62422 |
11410 |
336 |
133 |
25 |
0 |
0 |
0 |
| OW |
965 |
1437 |
131 |
154 |
105 |
14 |
0 |
0 |
| VODI |
1977 |
763 |
163 |
261 |
182 |
102 |
9 |
0 |
| ODI |
1735 |
393 |
97 |
244 |
328 |
176 |
25 |
0 |
| CDI |
0 |
395 |
107 |
310 |
654 |
1161 |
707 |
0 |
| VCDI |
0 |
68 |
32 |
134 |
252 |
2215 |
10766 |
2474 |
|
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