Validation of sea ice concentration - European sector
Bulletin date: 2023-12-14
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-12-08:
| 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 |
69181 |
10552 |
271 |
277 |
99 |
52 |
2 |
0 |
| OW |
868 |
548 |
162 |
280 |
219 |
70 |
0 |
0 |
| VODI |
2346 |
121 |
76 |
245 |
311 |
210 |
12 |
0 |
| ODI |
1230 |
37 |
32 |
110 |
168 |
410 |
93 |
0 |
| CDI |
0 |
37 |
21 |
106 |
188 |
892 |
506 |
0 |
| VCDI |
0 |
67 |
25 |
110 |
162 |
1134 |
9041 |
2591 |
|
...date precedes bulletin
|
Date: 2023-12-10:
| 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 |
68960 |
10092 |
301 |
290 |
96 |
22 |
13 |
0 |
| OW |
936 |
628 |
141 |
306 |
231 |
44 |
11 |
0 |
| VODI |
2396 |
272 |
98 |
274 |
332 |
138 |
24 |
0 |
| ODI |
1047 |
83 |
34 |
153 |
239 |
395 |
52 |
0 |
| CDI |
0 |
129 |
31 |
93 |
267 |
1047 |
619 |
0 |
| VCDI |
0 |
125 |
51 |
159 |
271 |
1029 |
9162 |
2271 |
|
...date precedes bulletin
|
Date: 2023-12-12:
| 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 |
68012 |
10764 |
215 |
212 |
67 |
5 |
0 |
0 |
| OW |
918 |
611 |
193 |
358 |
117 |
44 |
1 |
0 |
| VODI |
2328 |
290 |
140 |
495 |
325 |
124 |
8 |
0 |
| ODI |
1136 |
65 |
36 |
207 |
367 |
224 |
32 |
0 |
| CDI |
0 |
75 |
34 |
173 |
400 |
1394 |
689 |
0 |
| VCDI |
0 |
16 |
16 |
40 |
242 |
935 |
8428 |
3126 |
|
...date precedes bulletin
|
Date: 2023-12-14:
| 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 |
67571 |
10522 |
166 |
161 |
33 |
4 |
1 |
0 |
| OW |
837 |
813 |
172 |
306 |
209 |
15 |
2 |
0 |
| VODI |
2140 |
335 |
180 |
312 |
427 |
149 |
3 |
0 |
| ODI |
1467 |
108 |
89 |
300 |
276 |
206 |
13 |
0 |
| CDI |
0 |
112 |
80 |
340 |
661 |
1215 |
582 |
0 |
| VCDI |
0 |
1 |
4 |
15 |
139 |
2109 |
8375 |
2412 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67571 |
10522 |
173 |
159 |
39 |
4 |
1 |
0 |
| OW |
837 |
830 |
167 |
296 |
206 |
22 |
2 |
0 |
| VODI |
2143 |
335 |
187 |
355 |
435 |
139 |
6 |
0 |
| ODI |
1464 |
109 |
96 |
323 |
270 |
223 |
16 |
0 |
| CDI |
0 |
94 |
65 |
285 |
640 |
1241 |
553 |
0 |
| VCDI |
0 |
1 |
3 |
16 |
155 |
2069 |
8398 |
2412 |
|
Date: 2023-12-16:
| 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 |
67286 |
10219 |
772 |
120 |
39 |
12 |
5 |
0 |
| OW |
900 |
842 |
195 |
240 |
105 |
27 |
8 |
0 |
| VODI |
2220 |
408 |
88 |
348 |
389 |
154 |
32 |
0 |
| ODI |
1264 |
201 |
75 |
169 |
340 |
306 |
61 |
0 |
| CDI |
0 |
223 |
95 |
351 |
542 |
807 |
642 |
0 |
| VCDI |
0 |
26 |
24 |
79 |
186 |
2480 |
8177 |
2405 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67285 |
10293 |
776 |
120 |
33 |
11 |
4 |
0 |
| OW |
901 |
795 |
204 |
243 |
108 |
30 |
7 |
0 |
| VODI |
2218 |
413 |
78 |
339 |
384 |
152 |
36 |
0 |
| ODI |
1266 |
186 |
81 |
222 |
344 |
279 |
60 |
0 |
| CDI |
0 |
207 |
83 |
302 |
512 |
801 |
602 |
0 |
| VCDI |
0 |
25 |
27 |
81 |
220 |
2513 |
8216 |
2405 |
|
Date: 2023-12-18:
| 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 |
67796 |
10203 |
116 |
93 |
19 |
15 |
7 |
0 |
| OW |
816 |
1162 |
174 |
164 |
45 |
25 |
6 |
0 |
| VODI |
2038 |
290 |
228 |
562 |
238 |
62 |
18 |
0 |
| ODI |
1599 |
56 |
41 |
248 |
500 |
185 |
24 |
0 |
| CDI |
0 |
73 |
48 |
234 |
503 |
1399 |
398 |
0 |
| VCDI |
0 |
2 |
0 |
7 |
118 |
2120 |
6811 |
4419 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67788 |
9975 |
125 |
108 |
22 |
15 |
3 |
0 |
| OW |
827 |
877 |
148 |
223 |
103 |
40 |
16 |
0 |
| VODI |
2046 |
550 |
136 |
271 |
211 |
155 |
30 |
0 |
| ODI |
1588 |
166 |
92 |
287 |
302 |
238 |
51 |
0 |
| CDI |
0 |
191 |
78 |
318 |
552 |
929 |
504 |
0 |
| VCDI |
0 |
27 |
28 |
101 |
233 |
2429 |
6660 |
4419 |
|
Date: 2023-12-20:
| 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 |
67245 |
10309 |
146 |
117 |
16 |
0 |
0 |
0 |
| OW |
809 |
842 |
190 |
285 |
111 |
11 |
0 |
0 |
| VODI |
1983 |
259 |
159 |
412 |
290 |
45 |
5 |
0 |
| ODI |
1665 |
54 |
45 |
308 |
501 |
251 |
17 |
0 |
| CDI |
0 |
22 |
34 |
180 |
628 |
1409 |
427 |
0 |
| VCDI |
0 |
0 |
2 |
23 |
275 |
2635 |
8370 |
2782 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67221 |
9795 |
139 |
127 |
28 |
0 |
0 |
0 |
| OW |
833 |
882 |
145 |
229 |
146 |
28 |
0 |
0 |
| VODI |
1984 |
525 |
126 |
304 |
237 |
153 |
18 |
0 |
| ODI |
1664 |
176 |
82 |
312 |
358 |
318 |
45 |
0 |
| CDI |
0 |
91 |
68 |
241 |
627 |
987 |
447 |
0 |
| VCDI |
0 |
17 |
16 |
112 |
425 |
2865 |
8309 |
2782 |
|
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 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
66168 |
10282 |
163 |
212 |
61 |
9 |
0 |
0 |
| OW |
845 |
852 |
145 |
201 |
184 |
33 |
5 |
0 |
| VODI |
1937 |
506 |
125 |
216 |
257 |
138 |
40 |
0 |
| ODI |
1725 |
164 |
73 |
221 |
298 |
237 |
64 |
0 |
| CDI |
0 |
74 |
86 |
247 |
508 |
1060 |
715 |
0 |
| VCDI |
0 |
3 |
5 |
99 |
502 |
3875 |
7429 |
3098 |
|
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