Validation of sea ice concentration - European sector
Bulletin date: 2023-09-21
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-09-15:
| 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 |
85120 |
3437 |
80 |
119 |
17 |
0 |
0 |
0 |
| OW |
2915 |
722 |
157 |
191 |
43 |
0 |
0 |
0 |
| VODI |
740 |
89 |
126 |
605 |
502 |
7 |
0 |
0 |
| ODI |
0 |
0 |
1 |
160 |
1259 |
370 |
2 |
0 |
| CDI |
0 |
0 |
0 |
4 |
582 |
2923 |
1 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
2549 |
140 |
0 |
|
...date precedes bulletin
|
Date: 2023-09-17:
| 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 |
84891 |
3504 |
79 |
117 |
0 |
0 |
0 |
0 |
| OW |
2784 |
712 |
208 |
254 |
51 |
0 |
0 |
0 |
| VODI |
940 |
60 |
105 |
519 |
495 |
31 |
0 |
0 |
| ODI |
0 |
1 |
4 |
169 |
710 |
733 |
1 |
0 |
| CDI |
0 |
0 |
0 |
21 |
84 |
3095 |
76 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
2732 |
486 |
0 |
|
...date precedes bulletin
|
Date: 2023-09-19:
| 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 |
84798 |
3658 |
103 |
124 |
3 |
0 |
0 |
0 |
| OW |
2617 |
604 |
145 |
143 |
12 |
0 |
0 |
0 |
| VODI |
1137 |
59 |
100 |
365 |
271 |
21 |
0 |
0 |
| ODI |
0 |
1 |
7 |
162 |
392 |
169 |
3 |
0 |
| CDI |
0 |
0 |
0 |
31 |
349 |
2050 |
36 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
11 |
4349 |
1142 |
0 |
|
...date precedes bulletin
|
Date: 2023-09-21:
| 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 |
84224 |
4049 |
105 |
103 |
2 |
0 |
0 |
0 |
| OW |
2584 |
573 |
166 |
168 |
10 |
0 |
0 |
0 |
| VODI |
1176 |
60 |
98 |
391 |
245 |
4 |
0 |
0 |
| ODI |
0 |
3 |
12 |
180 |
428 |
54 |
3 |
0 |
| CDI |
0 |
0 |
0 |
51 |
468 |
2037 |
167 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
8 |
4342 |
1151 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
84280 |
4035 |
107 |
99 |
2 |
0 |
0 |
0 |
| OW |
2641 |
600 |
172 |
173 |
14 |
0 |
0 |
0 |
| VODI |
1063 |
50 |
92 |
409 |
250 |
4 |
0 |
0 |
| ODI |
0 |
0 |
10 |
178 |
435 |
53 |
2 |
0 |
| CDI |
0 |
0 |
0 |
34 |
450 |
1981 |
149 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
10 |
4399 |
1170 |
0 |
|
Date: 2023-09-23:
| 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 |
84186 |
3899 |
117 |
109 |
2 |
0 |
0 |
0 |
| OW |
2450 |
497 |
183 |
230 |
37 |
1 |
0 |
0 |
| VODI |
1386 |
83 |
73 |
326 |
259 |
14 |
0 |
0 |
| ODI |
0 |
5 |
12 |
130 |
355 |
99 |
3 |
0 |
| CDI |
0 |
0 |
1 |
69 |
418 |
1238 |
90 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
3596 |
2990 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
84186 |
3888 |
111 |
121 |
5 |
0 |
0 |
0 |
| OW |
2447 |
526 |
198 |
201 |
27 |
1 |
0 |
0 |
| VODI |
1389 |
67 |
68 |
342 |
283 |
13 |
0 |
0 |
| ODI |
0 |
3 |
9 |
144 |
345 |
131 |
0 |
0 |
| CDI |
0 |
0 |
0 |
56 |
401 |
1252 |
112 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
14 |
3551 |
2971 |
0 |
|
Date: 2023-09-25:
| 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 |
83945 |
3979 |
113 |
162 |
29 |
0 |
0 |
0 |
| OW |
2252 |
399 |
110 |
138 |
18 |
1 |
0 |
0 |
| VODI |
1623 |
77 |
113 |
371 |
177 |
12 |
0 |
0 |
| ODI |
0 |
0 |
5 |
197 |
531 |
91 |
0 |
0 |
| CDI |
0 |
0 |
0 |
8 |
231 |
715 |
27 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
3783 |
3755 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
83965 |
3907 |
111 |
169 |
44 |
1 |
0 |
0 |
| OW |
2355 |
457 |
151 |
266 |
57 |
7 |
0 |
0 |
| VODI |
1500 |
89 |
70 |
263 |
261 |
51 |
0 |
0 |
| ODI |
0 |
2 |
8 |
127 |
302 |
150 |
11 |
0 |
| CDI |
0 |
0 |
1 |
51 |
291 |
948 |
381 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
31 |
3445 |
3390 |
0 |
|
Date: 2023-09-27:
| 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 |
84235 |
3616 |
78 |
102 |
23 |
0 |
0 |
0 |
| OW |
2287 |
394 |
125 |
135 |
22 |
0 |
0 |
0 |
| VODI |
1532 |
113 |
119 |
355 |
147 |
13 |
0 |
0 |
| ODI |
0 |
8 |
11 |
240 |
436 |
85 |
0 |
0 |
| CDI |
0 |
0 |
0 |
5 |
267 |
665 |
95 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
13 |
3744 |
3997 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
84310 |
3574 |
90 |
138 |
38 |
0 |
0 |
0 |
| OW |
2416 |
453 |
152 |
212 |
44 |
8 |
0 |
0 |
| VODI |
1328 |
94 |
85 |
314 |
199 |
39 |
0 |
0 |
| ODI |
0 |
10 |
4 |
118 |
312 |
140 |
4 |
0 |
| CDI |
0 |
0 |
2 |
55 |
302 |
882 |
380 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
13 |
3438 |
3708 |
0 |
|
Date: 2023-09-29:
| 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 |
83931 |
3860 |
125 |
139 |
15 |
2 |
0 |
0 |
| OW |
2286 |
330 |
91 |
231 |
41 |
6 |
0 |
0 |
| VODI |
1487 |
136 |
80 |
237 |
182 |
21 |
0 |
0 |
| ODI |
0 |
15 |
15 |
101 |
354 |
122 |
0 |
0 |
| CDI |
0 |
0 |
6 |
41 |
227 |
501 |
115 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
32 |
1845 |
6288 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
83943 |
3700 |
98 |
137 |
32 |
7 |
0 |
0 |
| OW |
2361 |
436 |
101 |
166 |
40 |
5 |
0 |
0 |
| VODI |
1400 |
178 |
87 |
284 |
188 |
21 |
0 |
0 |
| ODI |
0 |
27 |
25 |
116 |
263 |
175 |
3 |
0 |
| CDI |
0 |
0 |
6 |
45 |
284 |
495 |
810 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
44 |
1794 |
5590 |
0 |
|
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