Validation of sea ice concentration - European sector
Bulletin date: 2023-12-07
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-12-01:
| 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 |
72114 |
8233 |
116 |
155 |
181 |
89 |
0 |
0 |
| OW |
968 |
986 |
122 |
135 |
60 |
98 |
0 |
0 |
| VODI |
2688 |
410 |
148 |
282 |
168 |
125 |
2 |
0 |
| ODI |
716 |
126 |
102 |
299 |
278 |
256 |
21 |
0 |
| CDI |
0 |
51 |
25 |
132 |
357 |
1130 |
355 |
0 |
| VCDI |
0 |
25 |
15 |
55 |
151 |
1240 |
7441 |
3007 |
|
...date precedes bulletin
|
Date: 2023-12-03:
| 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 |
71068 |
8886 |
195 |
248 |
185 |
68 |
0 |
0 |
| OW |
893 |
703 |
178 |
231 |
126 |
55 |
0 |
0 |
| VODI |
2486 |
249 |
158 |
338 |
325 |
122 |
6 |
0 |
| ODI |
1062 |
63 |
52 |
297 |
270 |
261 |
10 |
0 |
| CDI |
0 |
28 |
21 |
160 |
353 |
1110 |
349 |
0 |
| VCDI |
0 |
24 |
17 |
44 |
133 |
1293 |
8151 |
2644 |
|
...date precedes bulletin
|
Date: 2023-12-05:
| 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 |
70933 |
9210 |
204 |
195 |
140 |
36 |
0 |
0 |
| OW |
926 |
575 |
166 |
311 |
126 |
9 |
0 |
0 |
| VODI |
2424 |
149 |
113 |
342 |
408 |
98 |
0 |
0 |
| ODI |
1135 |
17 |
23 |
181 |
464 |
281 |
18 |
0 |
| CDI |
0 |
11 |
8 |
72 |
343 |
1057 |
376 |
0 |
| VCDI |
0 |
14 |
8 |
15 |
93 |
1355 |
8546 |
2480 |
|
...date precedes bulletin
|
Date: 2023-12-07:
| 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 |
68932 |
11107 |
276 |
226 |
61 |
46 |
0 |
0 |
| OW |
869 |
527 |
175 |
361 |
130 |
32 |
0 |
0 |
| VODI |
2376 |
106 |
99 |
292 |
347 |
130 |
8 |
0 |
| ODI |
1200 |
27 |
26 |
134 |
250 |
367 |
61 |
0 |
| CDI |
0 |
15 |
12 |
119 |
213 |
813 |
455 |
0 |
| VCDI |
0 |
46 |
15 |
50 |
152 |
1333 |
8001 |
3473 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
68923 |
11208 |
288 |
256 |
71 |
52 |
0 |
0 |
| OW |
878 |
424 |
155 |
321 |
131 |
34 |
0 |
0 |
| VODI |
2380 |
112 |
105 |
291 |
326 |
125 |
3 |
0 |
| ODI |
1196 |
26 |
31 |
153 |
262 |
346 |
57 |
0 |
| CDI |
0 |
13 |
9 |
115 |
215 |
837 |
421 |
0 |
| VCDI |
0 |
45 |
15 |
46 |
148 |
1327 |
8044 |
3473 |
|
Date: 2023-12-09:
| 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 |
69224 |
10124 |
265 |
327 |
161 |
42 |
8 |
0 |
| OW |
944 |
548 |
149 |
289 |
215 |
115 |
0 |
0 |
| VODI |
2429 |
164 |
91 |
223 |
282 |
256 |
21 |
0 |
| ODI |
1010 |
70 |
26 |
100 |
186 |
422 |
72 |
0 |
| CDI |
0 |
78 |
25 |
77 |
248 |
1041 |
547 |
0 |
| VCDI |
0 |
111 |
41 |
154 |
166 |
1036 |
7733 |
3842 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
69214 |
10199 |
273 |
344 |
186 |
55 |
8 |
0 |
| OW |
955 |
464 |
138 |
255 |
202 |
109 |
0 |
0 |
| VODI |
2436 |
164 |
95 |
229 |
256 |
235 |
16 |
0 |
| ODI |
1002 |
79 |
24 |
121 |
181 |
428 |
64 |
0 |
| CDI |
0 |
72 |
28 |
77 |
270 |
1069 |
593 |
0 |
| VCDI |
0 |
117 |
39 |
144 |
163 |
1016 |
7700 |
3842 |
|
Date: 2023-12-11:
| 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 |
68414 |
10570 |
298 |
222 |
72 |
21 |
4 |
0 |
| OW |
928 |
735 |
212 |
275 |
80 |
19 |
9 |
0 |
| VODI |
2357 |
279 |
151 |
464 |
318 |
48 |
14 |
0 |
| ODI |
1101 |
64 |
32 |
192 |
372 |
260 |
24 |
0 |
| CDI |
0 |
98 |
37 |
162 |
253 |
1446 |
502 |
0 |
| VCDI |
0 |
2 |
2 |
46 |
174 |
790 |
9639 |
2176 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
68358 |
10399 |
349 |
290 |
128 |
28 |
16 |
0 |
| OW |
852 |
639 |
143 |
306 |
160 |
60 |
18 |
0 |
| VODI |
2254 |
313 |
115 |
253 |
239 |
165 |
28 |
0 |
| ODI |
1336 |
122 |
52 |
184 |
226 |
423 |
64 |
0 |
| CDI |
0 |
178 |
34 |
155 |
273 |
1001 |
648 |
0 |
| VCDI |
0 |
97 |
39 |
173 |
243 |
907 |
9418 |
2176 |
|
Date: 2023-12-13:
| 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 |
67605 |
10656 |
177 |
200 |
42 |
7 |
0 |
0 |
| OW |
841 |
665 |
224 |
348 |
168 |
38 |
0 |
0 |
| VODI |
2173 |
257 |
142 |
404 |
406 |
129 |
4 |
0 |
| ODI |
1430 |
69 |
60 |
275 |
384 |
229 |
25 |
0 |
| CDI |
0 |
40 |
42 |
188 |
619 |
1770 |
588 |
0 |
| VCDI |
0 |
2 |
5 |
15 |
77 |
1462 |
8670 |
2426 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67667 |
10422 |
166 |
204 |
89 |
50 |
1 |
0 |
| OW |
914 |
742 |
174 |
289 |
251 |
97 |
12 |
0 |
| VODI |
2304 |
309 |
160 |
337 |
320 |
208 |
38 |
0 |
| ODI |
1164 |
89 |
63 |
242 |
292 |
424 |
56 |
0 |
| CDI |
0 |
99 |
63 |
262 |
532 |
1458 |
757 |
0 |
| VCDI |
0 |
28 |
24 |
96 |
212 |
1398 |
8423 |
2426 |
|
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 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
68412 |
9160 |
120 |
141 |
112 |
42 |
5 |
0 |
| OW |
910 |
976 |
130 |
185 |
120 |
97 |
33 |
0 |
| VODI |
2235 |
666 |
125 |
306 |
386 |
214 |
56 |
0 |
| ODI |
1247 |
275 |
75 |
216 |
288 |
353 |
204 |
0 |
| CDI |
0 |
254 |
100 |
318 |
351 |
689 |
867 |
0 |
| VCDI |
0 |
72 |
49 |
191 |
300 |
2654 |
8102 |
1826 |
|
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