Validation of sea ice concentration - European sector
Bulletin date: 2023-10-19
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-10-13:
| 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 |
82886 |
4321 |
46 |
19 |
0 |
0 |
0 |
0 |
| OW |
1789 |
331 |
80 |
100 |
6 |
0 |
0 |
0 |
| VODI |
2138 |
127 |
38 |
156 |
138 |
23 |
0 |
0 |
| ODI |
0 |
81 |
35 |
69 |
93 |
94 |
6 |
0 |
| CDI |
0 |
37 |
46 |
155 |
172 |
267 |
62 |
0 |
| VCDI |
0 |
0 |
1 |
29 |
135 |
1349 |
6334 |
1699 |
|
...date precedes bulletin
|
Date: 2023-10-15:
| 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 |
83069 |
4030 |
57 |
38 |
0 |
0 |
0 |
0 |
| OW |
1754 |
300 |
52 |
76 |
44 |
1 |
0 |
0 |
| VODI |
2181 |
193 |
34 |
63 |
140 |
58 |
2 |
0 |
| ODI |
0 |
121 |
32 |
64 |
55 |
78 |
2 |
0 |
| CDI |
0 |
78 |
56 |
184 |
113 |
287 |
59 |
0 |
| VCDI |
0 |
15 |
22 |
85 |
182 |
1542 |
5835 |
1960 |
|
...date precedes bulletin
|
Date: 2023-10-17:
| 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 |
82772 |
4375 |
66 |
46 |
0 |
0 |
0 |
0 |
| OW |
1626 |
276 |
75 |
116 |
32 |
0 |
0 |
0 |
| VODI |
2383 |
100 |
41 |
188 |
64 |
12 |
0 |
0 |
| ODI |
0 |
43 |
30 |
76 |
143 |
84 |
3 |
0 |
| CDI |
0 |
9 |
30 |
129 |
217 |
360 |
119 |
0 |
| VCDI |
0 |
0 |
0 |
16 |
158 |
1440 |
5641 |
2192 |
|
...date precedes bulletin
|
Date: 2023-10-19:
| 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 |
80834 |
5936 |
155 |
93 |
8 |
0 |
0 |
0 |
| OW |
1570 |
273 |
71 |
105 |
26 |
0 |
0 |
0 |
| VODI |
2448 |
124 |
43 |
148 |
79 |
5 |
0 |
0 |
| ODI |
0 |
83 |
15 |
91 |
167 |
29 |
0 |
0 |
| CDI |
0 |
28 |
25 |
108 |
418 |
537 |
43 |
0 |
| VCDI |
0 |
7 |
11 |
39 |
180 |
2331 |
5126 |
1706 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
80834 |
5987 |
152 |
94 |
10 |
0 |
0 |
0 |
| OW |
1573 |
230 |
76 |
115 |
32 |
0 |
0 |
0 |
| VODI |
2445 |
131 |
40 |
137 |
83 |
6 |
0 |
0 |
| ODI |
0 |
72 |
16 |
95 |
160 |
38 |
0 |
0 |
| CDI |
0 |
24 |
27 |
107 |
425 |
563 |
43 |
0 |
| VCDI |
0 |
7 |
9 |
36 |
168 |
2295 |
5126 |
1706 |
|
Date: 2023-10-21:
| 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 |
82152 |
4174 |
108 |
33 |
6 |
0 |
0 |
0 |
| OW |
1467 |
345 |
85 |
72 |
29 |
0 |
0 |
0 |
| VODI |
2629 |
224 |
74 |
139 |
78 |
3 |
0 |
0 |
| ODI |
0 |
82 |
65 |
185 |
133 |
49 |
0 |
0 |
| CDI |
0 |
50 |
39 |
251 |
380 |
553 |
30 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
161 |
2388 |
5610 |
1266 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
82152 |
4224 |
111 |
38 |
5 |
0 |
0 |
0 |
| OW |
1470 |
326 |
88 |
74 |
35 |
0 |
0 |
0 |
| VODI |
2626 |
199 |
72 |
133 |
88 |
3 |
0 |
0 |
| ODI |
0 |
80 |
61 |
173 |
123 |
76 |
4 |
0 |
| CDI |
0 |
46 |
39 |
264 |
378 |
520 |
21 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
158 |
2394 |
5615 |
1266 |
|
Date: 2023-10-23:
| 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 |
81950 |
4395 |
38 |
29 |
12 |
0 |
0 |
0 |
| OW |
1418 |
659 |
105 |
165 |
56 |
2 |
0 |
0 |
| VODI |
2686 |
143 |
84 |
205 |
96 |
34 |
0 |
0 |
| ODI |
0 |
16 |
13 |
148 |
250 |
163 |
8 |
0 |
| CDI |
0 |
0 |
0 |
14 |
224 |
857 |
92 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
7 |
1840 |
6854 |
299 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
81946 |
4271 |
49 |
57 |
13 |
0 |
0 |
0 |
| OW |
1440 |
382 |
44 |
77 |
43 |
0 |
0 |
0 |
| VODI |
2668 |
285 |
44 |
106 |
63 |
14 |
1 |
0 |
| ODI |
0 |
137 |
50 |
113 |
84 |
50 |
5 |
0 |
| CDI |
0 |
138 |
52 |
207 |
340 |
483 |
57 |
0 |
| VCDI |
0 |
0 |
1 |
1 |
102 |
2349 |
6891 |
299 |
|
Date: 2023-10-25:
| 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 |
81548 |
4693 |
55 |
64 |
13 |
0 |
0 |
0 |
| OW |
1378 |
464 |
156 |
218 |
86 |
18 |
0 |
0 |
| VODI |
2744 |
79 |
64 |
268 |
83 |
28 |
1 |
0 |
| ODI |
0 |
33 |
28 |
155 |
129 |
92 |
4 |
0 |
| CDI |
0 |
6 |
7 |
67 |
367 |
767 |
50 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
57 |
2082 |
5370 |
1688 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
81513 |
4527 |
72 |
69 |
20 |
0 |
0 |
0 |
| OW |
1441 |
345 |
49 |
80 |
39 |
18 |
0 |
0 |
| VODI |
2716 |
225 |
81 |
136 |
70 |
11 |
0 |
0 |
| ODI |
0 |
85 |
41 |
145 |
74 |
45 |
4 |
0 |
| CDI |
0 |
93 |
66 |
319 |
301 |
560 |
32 |
0 |
| VCDI |
0 |
0 |
1 |
23 |
231 |
2353 |
5389 |
1688 |
|
Date: 2023-10-27:
| 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 |
81116 |
4798 |
73 |
98 |
28 |
2 |
0 |
0 |
| OW |
1335 |
485 |
134 |
219 |
95 |
10 |
0 |
0 |
| VODI |
2800 |
78 |
55 |
268 |
56 |
31 |
1 |
0 |
| ODI |
0 |
22 |
21 |
224 |
116 |
58 |
3 |
0 |
| CDI |
0 |
14 |
13 |
93 |
274 |
692 |
239 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
86 |
1683 |
5801 |
1836 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
81070 |
4663 |
47 |
69 |
41 |
6 |
0 |
0 |
| OW |
1391 |
396 |
58 |
79 |
41 |
1 |
0 |
0 |
| VODI |
2790 |
194 |
97 |
184 |
49 |
14 |
0 |
0 |
| ODI |
0 |
72 |
34 |
142 |
56 |
32 |
4 |
0 |
| CDI |
0 |
63 |
38 |
262 |
187 |
289 |
96 |
0 |
| VCDI |
0 |
9 |
22 |
171 |
281 |
2134 |
5944 |
1836 |
|
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