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 |
68415 |
9764 |
134 |
127 |
42 |
6 |
4 |
0 |
| OW |
907 |
863 |
158 |
243 |
167 |
21 |
6 |
0 |
| VODI |
2252 |
393 |
119 |
336 |
421 |
188 |
11 |
0 |
| ODI |
1230 |
189 |
65 |
218 |
291 |
244 |
31 |
0 |
| CDI |
0 |
186 |
113 |
383 |
474 |
953 |
657 |
0 |
| VCDI |
0 |
8 |
10 |
50 |
162 |
2637 |
8558 |
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 |
68339 |
9659 |
129 |
107 |
28 |
12 |
3 |
0 |
| OW |
823 |
892 |
129 |
212 |
119 |
33 |
6 |
0 |
| VODI |
2078 |
492 |
113 |
277 |
293 |
145 |
34 |
0 |
| ODI |
1550 |
233 |
65 |
166 |
284 |
329 |
74 |
0 |
| CDI |
0 |
252 |
86 |
313 |
498 |
811 |
575 |
0 |
| VCDI |
0 |
40 |
36 |
98 |
220 |
2702 |
7887 |
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 |
68210 |
9563 |
119 |
135 |
22 |
2 |
0 |
0 |
| OW |
816 |
949 |
231 |
219 |
76 |
23 |
0 |
0 |
| VODI |
2010 |
275 |
138 |
558 |
278 |
63 |
10 |
0 |
| ODI |
1632 |
48 |
53 |
246 |
435 |
213 |
24 |
0 |
| CDI |
0 |
49 |
33 |
185 |
606 |
1458 |
460 |
0 |
| VCDI |
0 |
4 |
9 |
47 |
235 |
2378 |
7846 |
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 |
66704 |
10462 |
201 |
182 |
23 |
0 |
0 |
0 |
| OW |
803 |
776 |
162 |
269 |
159 |
8 |
0 |
0 |
| VODI |
1956 |
263 |
161 |
309 |
292 |
53 |
10 |
0 |
| ODI |
1700 |
48 |
58 |
235 |
417 |
247 |
29 |
0 |
| CDI |
0 |
11 |
33 |
185 |
743 |
1427 |
784 |
0 |
| VCDI |
0 |
0 |
2 |
25 |
267 |
3276 |
7530 |
3052 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
66704 |
10441 |
201 |
173 |
35 |
0 |
0 |
0 |
| OW |
802 |
778 |
165 |
276 |
147 |
9 |
0 |
0 |
| VODI |
1949 |
281 |
157 |
322 |
300 |
60 |
11 |
0 |
| ODI |
1708 |
51 |
59 |
229 |
396 |
249 |
34 |
0 |
| CDI |
0 |
9 |
34 |
179 |
750 |
1432 |
777 |
0 |
| VCDI |
0 |
0 |
1 |
26 |
273 |
3261 |
7531 |
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 |
65946 |
10853 |
170 |
103 |
26 |
2 |
0 |
0 |
| OW |
805 |
828 |
142 |
256 |
120 |
10 |
0 |
0 |
| VODI |
1913 |
297 |
137 |
273 |
299 |
53 |
0 |
0 |
| ODI |
1750 |
107 |
73 |
181 |
334 |
151 |
16 |
0 |
| CDI |
0 |
43 |
47 |
245 |
635 |
1292 |
792 |
0 |
| VCDI |
0 |
0 |
1 |
22 |
343 |
3564 |
7730 |
3303 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
65946 |
10841 |
170 |
113 |
37 |
1 |
0 |
0 |
| OW |
804 |
820 |
159 |
244 |
111 |
13 |
0 |
0 |
| VODI |
1911 |
301 |
120 |
296 |
285 |
50 |
0 |
0 |
| ODI |
1753 |
106 |
71 |
156 |
323 |
142 |
15 |
0 |
| CDI |
0 |
60 |
49 |
246 |
645 |
1349 |
800 |
0 |
| VCDI |
0 |
0 |
1 |
25 |
356 |
3517 |
7723 |
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 |
66209 |
10599 |
94 |
60 |
9 |
2 |
0 |
0 |
| OW |
827 |
1081 |
173 |
188 |
44 |
20 |
0 |
0 |
| VODI |
1885 |
222 |
200 |
413 |
273 |
35 |
1 |
0 |
| ODI |
1793 |
39 |
29 |
203 |
401 |
223 |
12 |
0 |
| CDI |
0 |
13 |
24 |
130 |
426 |
1368 |
535 |
0 |
| VCDI |
0 |
0 |
1 |
1 |
104 |
2962 |
7976 |
4287 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
66223 |
10285 |
110 |
69 |
8 |
0 |
0 |
0 |
| OW |
818 |
893 |
137 |
205 |
79 |
25 |
0 |
0 |
| VODI |
1880 |
470 |
134 |
258 |
222 |
72 |
7 |
0 |
| ODI |
1793 |
173 |
65 |
194 |
259 |
165 |
27 |
0 |
| CDI |
0 |
125 |
73 |
249 |
435 |
1071 |
807 |
0 |
| VCDI |
0 |
8 |
2 |
20 |
254 |
3277 |
7683 |
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 |
65826 |
10926 |
92 |
67 |
11 |
0 |
0 |
0 |
| OW |
878 |
1137 |
123 |
149 |
78 |
16 |
0 |
0 |
| VODI |
1858 |
509 |
163 |
250 |
169 |
49 |
2 |
0 |
| ODI |
1825 |
112 |
85 |
225 |
281 |
117 |
5 |
0 |
| CDI |
0 |
63 |
49 |
239 |
437 |
960 |
222 |
0 |
| VCDI |
0 |
4 |
20 |
84 |
539 |
3603 |
7984 |
3705 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
65775 |
10247 |
103 |
72 |
12 |
0 |
0 |
0 |
| OW |
903 |
1029 |
83 |
149 |
72 |
15 |
1 |
0 |
| VODI |
1873 |
734 |
108 |
184 |
183 |
59 |
4 |
0 |
| ODI |
1836 |
433 |
81 |
147 |
177 |
112 |
11 |
0 |
| CDI |
0 |
268 |
111 |
279 |
441 |
843 |
353 |
0 |
| VCDI |
0 |
40 |
46 |
183 |
630 |
3716 |
7844 |
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 |
65575 |
10864 |
152 |
117 |
18 |
0 |
0 |
0 |
| OW |
938 |
999 |
108 |
203 |
83 |
28 |
0 |
0 |
| VODI |
1841 |
482 |
161 |
232 |
164 |
60 |
18 |
0 |
| ODI |
1848 |
173 |
51 |
215 |
309 |
110 |
21 |
0 |
| CDI |
0 |
132 |
49 |
149 |
449 |
834 |
625 |
0 |
| VCDI |
0 |
59 |
41 |
167 |
517 |
3243 |
8255 |
3572 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
65357 |
10181 |
153 |
143 |
27 |
2 |
0 |
0 |
| OW |
986 |
901 |
76 |
153 |
79 |
33 |
4 |
0 |
| VODI |
1928 |
664 |
112 |
190 |
158 |
65 |
26 |
0 |
| ODI |
1931 |
338 |
73 |
161 |
161 |
135 |
26 |
0 |
| CDI |
0 |
377 |
60 |
200 |
472 |
707 |
687 |
0 |
| VCDI |
0 |
248 |
88 |
236 |
643 |
3333 |
8176 |
3572 |
|
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