Validation of sea ice concentration - European sector
Bulletin date: 2023-11-30
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-11-24:
| 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 |
72936 |
7685 |
127 |
188 |
202 |
11 |
0 |
0 |
| OW |
972 |
845 |
66 |
136 |
151 |
53 |
4 |
0 |
| VODI |
2855 |
552 |
105 |
217 |
247 |
116 |
29 |
0 |
| ODI |
535 |
224 |
127 |
210 |
151 |
94 |
39 |
0 |
| CDI |
0 |
109 |
88 |
428 |
638 |
781 |
49 |
0 |
| VCDI |
0 |
58 |
22 |
98 |
232 |
2361 |
7828 |
1293 |
|
...date precedes bulletin
|
Date: 2023-11-26:
| 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 |
71460 |
8804 |
152 |
251 |
120 |
6 |
0 |
0 |
| OW |
968 |
798 |
62 |
225 |
142 |
95 |
0 |
0 |
| VODI |
2782 |
511 |
114 |
191 |
246 |
229 |
18 |
0 |
| ODI |
614 |
236 |
117 |
213 |
186 |
177 |
15 |
0 |
| CDI |
0 |
106 |
86 |
430 |
622 |
898 |
133 |
0 |
| VCDI |
0 |
61 |
19 |
74 |
185 |
2288 |
6638 |
2590 |
|
...date precedes bulletin
|
Date: 2023-11-28:
| 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 |
72001 |
8076 |
181 |
313 |
138 |
30 |
0 |
0 |
| OW |
968 |
1036 |
122 |
195 |
135 |
71 |
0 |
0 |
| VODI |
2795 |
377 |
136 |
272 |
222 |
93 |
4 |
0 |
| ODI |
600 |
98 |
81 |
309 |
436 |
297 |
9 |
0 |
| CDI |
0 |
70 |
54 |
196 |
791 |
1434 |
240 |
0 |
| VCDI |
0 |
35 |
21 |
45 |
135 |
3195 |
6110 |
1541 |
|
...date precedes bulletin
|
Date: 2023-11-30:
| 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 |
72531 |
7844 |
99 |
163 |
147 |
44 |
0 |
0 |
| OW |
990 |
1098 |
119 |
104 |
92 |
54 |
1 |
0 |
| VODI |
2733 |
457 |
172 |
312 |
138 |
66 |
1 |
0 |
| ODI |
666 |
109 |
70 |
412 |
361 |
170 |
10 |
0 |
| CDI |
0 |
56 |
41 |
202 |
619 |
1071 |
320 |
0 |
| VCDI |
0 |
16 |
16 |
43 |
146 |
1445 |
7175 |
2749 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
72522 |
7957 |
104 |
168 |
146 |
44 |
0 |
0 |
| OW |
1000 |
996 |
116 |
105 |
92 |
59 |
1 |
0 |
| VODI |
2737 |
455 |
171 |
325 |
158 |
66 |
2 |
0 |
| ODI |
661 |
113 |
77 |
414 |
337 |
164 |
8 |
0 |
| CDI |
0 |
44 |
32 |
180 |
621 |
1049 |
308 |
0 |
| VCDI |
0 |
15 |
17 |
44 |
149 |
1468 |
7188 |
2749 |
|
Date: 2023-12-02:
| 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 |
71601 |
8526 |
178 |
204 |
206 |
78 |
0 |
0 |
| OW |
888 |
844 |
111 |
201 |
95 |
74 |
0 |
0 |
| VODI |
2522 |
366 |
149 |
291 |
197 |
163 |
2 |
0 |
| ODI |
1024 |
122 |
102 |
269 |
205 |
280 |
11 |
0 |
| CDI |
0 |
64 |
29 |
134 |
302 |
1080 |
357 |
0 |
| VCDI |
0 |
36 |
18 |
44 |
141 |
1059 |
8115 |
2774 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
71655 |
8596 |
192 |
225 |
200 |
74 |
0 |
0 |
| OW |
968 |
777 |
105 |
188 |
101 |
92 |
0 |
0 |
| VODI |
2652 |
360 |
140 |
277 |
212 |
151 |
2 |
0 |
| ODI |
760 |
146 |
110 |
283 |
189 |
272 |
10 |
0 |
| CDI |
0 |
49 |
25 |
131 |
318 |
1066 |
345 |
0 |
| VCDI |
0 |
30 |
15 |
39 |
126 |
1079 |
8128 |
2774 |
|
Date: 2023-12-04:
| 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 |
70851 |
9361 |
150 |
153 |
130 |
36 |
0 |
0 |
| OW |
917 |
655 |
195 |
249 |
67 |
14 |
0 |
0 |
| VODI |
2451 |
134 |
161 |
544 |
341 |
90 |
0 |
0 |
| ODI |
1102 |
9 |
11 |
136 |
635 |
318 |
11 |
0 |
| CDI |
0 |
14 |
8 |
59 |
355 |
1368 |
340 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
38 |
1448 |
8302 |
2209 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
70868 |
9184 |
168 |
190 |
158 |
40 |
0 |
0 |
| OW |
900 |
649 |
150 |
234 |
111 |
58 |
0 |
0 |
| VODI |
2450 |
230 |
133 |
331 |
279 |
171 |
4 |
0 |
| ODI |
1103 |
66 |
44 |
215 |
434 |
238 |
9 |
0 |
| CDI |
0 |
38 |
26 |
134 |
411 |
909 |
340 |
0 |
| VCDI |
0 |
6 |
4 |
37 |
173 |
1858 |
8300 |
2209 |
|
Date: 2023-12-06:
| 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 |
69693 |
10392 |
256 |
235 |
107 |
30 |
0 |
0 |
| OW |
936 |
521 |
145 |
353 |
118 |
28 |
0 |
0 |
| VODI |
2398 |
109 |
129 |
291 |
371 |
113 |
6 |
0 |
| ODI |
1170 |
25 |
29 |
126 |
397 |
297 |
45 |
0 |
| CDI |
0 |
13 |
4 |
91 |
388 |
875 |
388 |
0 |
| VCDI |
0 |
28 |
16 |
28 |
100 |
1492 |
7593 |
3526 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
69756 |
10123 |
231 |
211 |
118 |
38 |
0 |
0 |
| OW |
868 |
571 |
127 |
260 |
119 |
54 |
6 |
0 |
| VODI |
2391 |
236 |
112 |
273 |
267 |
193 |
27 |
0 |
| ODI |
1182 |
84 |
51 |
172 |
435 |
261 |
44 |
0 |
| CDI |
0 |
36 |
40 |
150 |
321 |
641 |
436 |
0 |
| VCDI |
0 |
38 |
18 |
58 |
221 |
1648 |
7519 |
3526 |
|
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 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
69188 |
10308 |
233 |
221 |
74 |
52 |
2 |
0 |
| OW |
859 |
581 |
116 |
236 |
163 |
58 |
12 |
0 |
| VODI |
2333 |
251 |
112 |
224 |
285 |
257 |
75 |
0 |
| ODI |
1245 |
87 |
64 |
161 |
217 |
561 |
93 |
0 |
| CDI |
0 |
75 |
39 |
182 |
229 |
700 |
508 |
0 |
| VCDI |
0 |
60 |
23 |
104 |
179 |
1140 |
8964 |
2591 |
|
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