Validation of sea ice concentration - European sector
Bulletin date: 2023-10-26
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-10-20:
| 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 |
81591 |
4912 |
199 |
48 |
1 |
0 |
0 |
0 |
| OW |
1545 |
251 |
104 |
108 |
42 |
1 |
0 |
0 |
| VODI |
2478 |
130 |
66 |
148 |
103 |
2 |
0 |
0 |
| ODI |
0 |
59 |
18 |
147 |
216 |
37 |
0 |
0 |
| CDI |
0 |
48 |
30 |
105 |
487 |
548 |
5 |
0 |
| VCDI |
0 |
5 |
4 |
20 |
117 |
2926 |
5428 |
933 |
|
...date precedes bulletin
|
Date: 2023-10-22:
| 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 |
82131 |
4125 |
36 |
18 |
2 |
0 |
0 |
0 |
| OW |
1445 |
399 |
54 |
67 |
28 |
6 |
0 |
0 |
| VODI |
2656 |
264 |
69 |
119 |
69 |
9 |
0 |
0 |
| ODI |
0 |
158 |
73 |
152 |
114 |
68 |
4 |
0 |
| CDI |
0 |
98 |
46 |
183 |
386 |
544 |
47 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
121 |
1999 |
6218 |
1154 |
|
...date precedes bulletin
|
Date: 2023-10-24:
| 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 |
81812 |
4486 |
52 |
41 |
11 |
0 |
0 |
0 |
| OW |
1403 |
540 |
143 |
222 |
57 |
5 |
0 |
0 |
| VODI |
2716 |
61 |
97 |
274 |
90 |
26 |
0 |
0 |
| ODI |
0 |
20 |
19 |
135 |
148 |
110 |
4 |
0 |
| CDI |
0 |
2 |
2 |
52 |
324 |
835 |
39 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
27 |
2063 |
6308 |
738 |
|
...date precedes bulletin
|
Date: 2023-10-26:
| 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 |
81344 |
4765 |
65 |
83 |
29 |
1 |
0 |
0 |
| OW |
1354 |
447 |
134 |
220 |
72 |
25 |
6 |
0 |
| VODI |
2775 |
75 |
85 |
241 |
82 |
33 |
0 |
0 |
| ODI |
0 |
31 |
22 |
204 |
107 |
70 |
5 |
0 |
| CDI |
0 |
13 |
12 |
102 |
277 |
746 |
222 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
85 |
1597 |
4871 |
2662 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
81340 |
4798 |
92 |
107 |
40 |
2 |
0 |
0 |
| OW |
1356 |
413 |
108 |
209 |
62 |
23 |
6 |
0 |
| VODI |
2777 |
79 |
83 |
244 |
76 |
42 |
1 |
0 |
| ODI |
0 |
30 |
25 |
186 |
112 |
61 |
6 |
0 |
| CDI |
0 |
11 |
10 |
104 |
284 |
755 |
231 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
78 |
1589 |
4860 |
2662 |
|
Date: 2023-10-28:
| 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 |
80788 |
4923 |
84 |
85 |
34 |
11 |
0 |
0 |
| OW |
1252 |
499 |
105 |
228 |
87 |
19 |
0 |
0 |
| VODI |
2956 |
72 |
61 |
236 |
74 |
26 |
1 |
0 |
| ODI |
0 |
24 |
23 |
231 |
131 |
57 |
8 |
0 |
| CDI |
0 |
14 |
10 |
86 |
218 |
609 |
246 |
0 |
| VCDI |
0 |
0 |
1 |
23 |
96 |
1602 |
5457 |
2485 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
80852 |
4990 |
91 |
94 |
38 |
13 |
0 |
0 |
| OW |
1316 |
426 |
104 |
253 |
85 |
18 |
0 |
0 |
| VODI |
2828 |
81 |
52 |
228 |
74 |
36 |
2 |
0 |
| ODI |
0 |
21 |
27 |
209 |
124 |
50 |
10 |
0 |
| CDI |
0 |
14 |
9 |
80 |
231 |
622 |
275 |
0 |
| VCDI |
0 |
0 |
1 |
25 |
88 |
1585 |
5425 |
2485 |
|
Date: 2023-10-30:
| 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 |
80111 |
5415 |
129 |
125 |
44 |
12 |
0 |
0 |
| OW |
1199 |
400 |
86 |
183 |
99 |
22 |
0 |
0 |
| VODI |
3025 |
82 |
117 |
291 |
200 |
31 |
0 |
0 |
| ODI |
0 |
12 |
24 |
184 |
223 |
171 |
4 |
0 |
| CDI |
0 |
0 |
0 |
28 |
185 |
598 |
127 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
51 |
905 |
6524 |
2250 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
80105 |
5131 |
106 |
124 |
40 |
14 |
0 |
0 |
| OW |
1222 |
569 |
99 |
190 |
171 |
20 |
0 |
0 |
| VODI |
3008 |
143 |
66 |
147 |
100 |
69 |
12 |
0 |
| ODI |
0 |
46 |
47 |
185 |
103 |
63 |
20 |
0 |
| CDI |
0 |
19 |
38 |
145 |
225 |
574 |
346 |
0 |
| VCDI |
0 |
1 |
0 |
25 |
163 |
999 |
6277 |
2250 |
|
Date: 2023-11-01:
| 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 |
79475 |
5770 |
132 |
104 |
41 |
21 |
0 |
0 |
| OW |
1173 |
404 |
123 |
168 |
92 |
38 |
6 |
0 |
| VODI |
3065 |
131 |
91 |
265 |
145 |
40 |
2 |
0 |
| ODI |
0 |
20 |
33 |
208 |
161 |
105 |
12 |
0 |
| CDI |
0 |
1 |
9 |
86 |
179 |
463 |
168 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
59 |
898 |
7443 |
1729 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
79457 |
5356 |
125 |
98 |
25 |
18 |
0 |
0 |
| OW |
1212 |
647 |
102 |
197 |
123 |
42 |
4 |
0 |
| VODI |
3044 |
197 |
64 |
147 |
122 |
63 |
25 |
0 |
| ODI |
0 |
92 |
54 |
155 |
98 |
58 |
22 |
0 |
| CDI |
0 |
33 |
39 |
203 |
193 |
520 |
414 |
0 |
| VCDI |
0 |
1 |
4 |
33 |
116 |
864 |
7166 |
1729 |
|
Date: 2023-11-03:
| 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 |
78973 |
6027 |
130 |
131 |
29 |
26 |
2 |
0 |
| OW |
1164 |
339 |
131 |
184 |
114 |
62 |
2 |
0 |
| VODI |
3092 |
44 |
60 |
178 |
221 |
76 |
5 |
0 |
| ODI |
0 |
5 |
11 |
106 |
249 |
99 |
13 |
0 |
| CDI |
0 |
0 |
7 |
56 |
285 |
342 |
149 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
51 |
662 |
6697 |
3139 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
78975 |
5602 |
119 |
109 |
10 |
17 |
1 |
0 |
| OW |
1175 |
567 |
99 |
189 |
156 |
79 |
3 |
0 |
| VODI |
3079 |
180 |
63 |
128 |
140 |
95 |
15 |
0 |
| ODI |
0 |
65 |
31 |
114 |
184 |
68 |
18 |
0 |
| CDI |
0 |
1 |
27 |
106 |
368 |
315 |
313 |
0 |
| VCDI |
0 |
0 |
0 |
10 |
91 |
693 |
6518 |
3139 |
|
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