Validation of sea ice concentration - European sector
Bulletin date: 2024-04-25
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-04-19:
| 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 |
57109 |
12935 |
44 |
56 |
17 |
1 |
0 |
0 |
| OW |
747 |
1628 |
203 |
195 |
54 |
13 |
10 |
0 |
| VODI |
1785 |
538 |
279 |
557 |
406 |
117 |
51 |
0 |
| ODI |
1824 |
140 |
86 |
328 |
599 |
482 |
80 |
0 |
| CDI |
0 |
123 |
65 |
207 |
765 |
1794 |
1396 |
0 |
| VCDI |
0 |
26 |
16 |
69 |
199 |
1313 |
9639 |
6966 |
|
...date precedes bulletin
|
Date: 2024-04-21:
| 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 |
57769 |
11756 |
46 |
113 |
29 |
0 |
0 |
0 |
| OW |
742 |
1865 |
121 |
175 |
116 |
19 |
0 |
0 |
| VODI |
1786 |
863 |
270 |
573 |
364 |
163 |
7 |
0 |
| ODI |
1823 |
307 |
95 |
336 |
546 |
421 |
34 |
0 |
| CDI |
0 |
252 |
78 |
279 |
1055 |
1844 |
842 |
0 |
| VCDI |
0 |
175 |
44 |
119 |
321 |
1577 |
9876 |
6061 |
|
...date precedes bulletin
|
Date: 2024-04-23:
| 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 |
57720 |
12476 |
72 |
92 |
10 |
0 |
0 |
0 |
| OW |
726 |
2199 |
203 |
210 |
32 |
8 |
0 |
0 |
| VODI |
1803 |
548 |
292 |
767 |
396 |
47 |
4 |
0 |
| ODI |
1802 |
145 |
88 |
396 |
767 |
279 |
24 |
0 |
| CDI |
0 |
268 |
57 |
234 |
1266 |
2296 |
1037 |
0 |
| VCDI |
0 |
87 |
44 |
115 |
258 |
2153 |
8572 |
5369 |
|
...date precedes bulletin
|
Date: 2024-04-25:
| 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 |
58321 |
12164 |
55 |
46 |
17 |
0 |
0 |
0 |
| OW |
812 |
1952 |
192 |
177 |
41 |
24 |
1 |
0 |
| VODI |
1813 |
767 |
215 |
680 |
355 |
54 |
9 |
0 |
| ODI |
1789 |
309 |
108 |
391 |
584 |
229 |
33 |
0 |
| CDI |
0 |
450 |
126 |
483 |
1122 |
2354 |
1318 |
0 |
| VCDI |
0 |
64 |
64 |
319 |
412 |
1761 |
8078 |
5173 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
58318 |
12255 |
60 |
51 |
17 |
0 |
0 |
0 |
| OW |
815 |
1841 |
183 |
181 |
41 |
16 |
1 |
0 |
| VODI |
1810 |
761 |
207 |
651 |
348 |
60 |
6 |
0 |
| ODI |
1792 |
324 |
115 |
379 |
515 |
241 |
35 |
0 |
| CDI |
0 |
479 |
138 |
531 |
1208 |
2360 |
1315 |
0 |
| VCDI |
0 |
46 |
57 |
303 |
402 |
1745 |
8082 |
5173 |
|
Date: 2024-04-27:
| 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 |
58063 |
12478 |
50 |
41 |
8 |
0 |
0 |
0 |
| OW |
756 |
1869 |
242 |
228 |
61 |
13 |
5 |
0 |
| VODI |
1825 |
785 |
223 |
641 |
302 |
102 |
24 |
0 |
| ODI |
1771 |
380 |
120 |
465 |
617 |
222 |
58 |
0 |
| CDI |
0 |
445 |
179 |
608 |
1326 |
2447 |
1385 |
0 |
| VCDI |
0 |
49 |
32 |
198 |
410 |
1961 |
9141 |
3332 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
58063 |
12553 |
54 |
44 |
10 |
0 |
0 |
0 |
| OW |
756 |
1757 |
222 |
221 |
50 |
10 |
4 |
0 |
| VODI |
1825 |
796 |
236 |
626 |
309 |
105 |
27 |
0 |
| ODI |
1771 |
382 |
116 |
450 |
566 |
240 |
61 |
0 |
| CDI |
0 |
485 |
192 |
652 |
1406 |
2401 |
1296 |
0 |
| VCDI |
0 |
33 |
26 |
188 |
383 |
1989 |
9225 |
3332 |
|
Date: 2024-04-29:
| 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 |
57839 |
13301 |
114 |
64 |
16 |
0 |
0 |
0 |
| OW |
810 |
2178 |
360 |
324 |
53 |
2 |
0 |
0 |
| VODI |
1865 |
453 |
322 |
815 |
345 |
48 |
5 |
0 |
| ODI |
1720 |
289 |
152 |
578 |
972 |
341 |
46 |
0 |
| CDI |
0 |
46 |
29 |
304 |
1348 |
3454 |
1592 |
0 |
| VCDI |
0 |
20 |
16 |
49 |
180 |
1959 |
7930 |
2923 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
57837 |
12672 |
103 |
36 |
9 |
1 |
0 |
0 |
| OW |
805 |
1674 |
216 |
266 |
90 |
13 |
4 |
0 |
| VODI |
1833 |
891 |
284 |
506 |
240 |
69 |
36 |
0 |
| ODI |
1759 |
452 |
165 |
473 |
537 |
207 |
111 |
0 |
| CDI |
0 |
543 |
196 |
732 |
1653 |
2909 |
2050 |
0 |
| VCDI |
0 |
55 |
29 |
121 |
385 |
2605 |
7372 |
2923 |
|
Date: 2024-05-01:
| 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 |
58812 |
12384 |
76 |
50 |
5 |
0 |
0 |
0 |
| OW |
916 |
2076 |
292 |
310 |
51 |
4 |
0 |
0 |
| VODI |
1877 |
568 |
301 |
719 |
311 |
46 |
3 |
0 |
| ODI |
1707 |
215 |
145 |
578 |
860 |
332 |
104 |
0 |
| CDI |
0 |
47 |
39 |
339 |
1526 |
3761 |
2010 |
0 |
| VCDI |
0 |
22 |
23 |
57 |
158 |
1413 |
5974 |
4751 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
58697 |
11727 |
66 |
27 |
3 |
0 |
0 |
0 |
| OW |
990 |
1533 |
161 |
197 |
45 |
10 |
1 |
0 |
| VODI |
1881 |
1053 |
233 |
443 |
228 |
84 |
23 |
0 |
| ODI |
1744 |
495 |
196 |
526 |
545 |
292 |
148 |
0 |
| CDI |
0 |
448 |
190 |
781 |
1878 |
3288 |
2067 |
0 |
| VCDI |
0 |
56 |
30 |
79 |
212 |
1882 |
5852 |
4751 |
|
Date: 2024-05-03:
| 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 |
58830 |
12642 |
93 |
85 |
10 |
0 |
0 |
0 |
| OW |
814 |
2057 |
273 |
304 |
54 |
15 |
0 |
0 |
| VODI |
1890 |
642 |
325 |
637 |
340 |
68 |
4 |
0 |
| ODI |
1691 |
144 |
117 |
558 |
725 |
288 |
56 |
0 |
| CDI |
0 |
78 |
51 |
367 |
1676 |
3461 |
2057 |
1 |
| VCDI |
0 |
38 |
17 |
66 |
159 |
1223 |
6632 |
4374 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
58826 |
11502 |
75 |
50 |
3 |
0 |
0 |
0 |
| OW |
814 |
1822 |
130 |
212 |
61 |
21 |
0 |
0 |
| VODI |
1859 |
1220 |
240 |
399 |
232 |
105 |
39 |
0 |
| ODI |
1726 |
561 |
208 |
481 |
603 |
386 |
215 |
0 |
| CDI |
0 |
430 |
193 |
753 |
1820 |
3085 |
2003 |
0 |
| VCDI |
0 |
66 |
30 |
122 |
245 |
1458 |
6492 |
4375 |
|
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