Validation of sea ice concentration - European sector
Bulletin date: 2023-04-06
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-03-31:
| 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 |
58483 |
21629 |
3352 |
657 |
297 |
90 |
30 |
0 |
| OW |
62 |
200 |
228 |
343 |
192 |
80 |
27 |
0 |
| VODI |
0 |
109 |
120 |
228 |
313 |
170 |
113 |
0 |
| ODI |
0 |
38 |
26 |
140 |
291 |
229 |
190 |
0 |
| CDI |
0 |
8 |
3 |
69 |
361 |
574 |
539 |
0 |
| VCDI |
0 |
1 |
0 |
9 |
426 |
1766 |
10831 |
6876 |
|
...date precedes bulletin
|
Date: 2023-04-02:
| 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 |
61047 |
18960 |
3466 |
729 |
332 |
139 |
41 |
0 |
| OW |
54 |
292 |
207 |
274 |
197 |
115 |
56 |
0 |
| VODI |
0 |
125 |
133 |
236 |
264 |
174 |
165 |
0 |
| ODI |
0 |
42 |
62 |
154 |
209 |
268 |
185 |
0 |
| CDI |
0 |
5 |
15 |
101 |
267 |
468 |
523 |
0 |
| VCDI |
0 |
0 |
0 |
29 |
381 |
1982 |
11351 |
6052 |
|
...date precedes bulletin
|
Date: 2023-04-04:
| 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 |
56839 |
22410 |
4571 |
630 |
161 |
38 |
20 |
0 |
| OW |
53 |
142 |
386 |
326 |
176 |
45 |
12 |
0 |
| VODI |
0 |
70 |
185 |
352 |
261 |
139 |
27 |
0 |
| ODI |
0 |
37 |
42 |
172 |
228 |
242 |
109 |
0 |
| CDI |
0 |
15 |
11 |
104 |
271 |
404 |
375 |
0 |
| VCDI |
0 |
8 |
17 |
55 |
311 |
2311 |
10771 |
6774 |
|
...date precedes bulletin
|
Date: 2023-04-06:
| 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 |
57037 |
24065 |
2836 |
616 |
225 |
102 |
23 |
0 |
| OW |
54 |
234 |
281 |
272 |
143 |
82 |
27 |
0 |
| VODI |
0 |
82 |
197 |
280 |
240 |
160 |
66 |
0 |
| ODI |
0 |
26 |
102 |
137 |
202 |
222 |
149 |
0 |
| CDI |
0 |
19 |
55 |
126 |
238 |
381 |
323 |
0 |
| VCDI |
0 |
25 |
47 |
121 |
371 |
2712 |
9911 |
6911 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
57037 |
24088 |
2819 |
610 |
222 |
110 |
25 |
0 |
| OW |
54 |
209 |
278 |
256 |
143 |
78 |
25 |
0 |
| VODI |
0 |
83 |
221 |
277 |
229 |
152 |
66 |
0 |
| ODI |
0 |
31 |
95 |
150 |
204 |
218 |
148 |
0 |
| CDI |
0 |
16 |
50 |
133 |
227 |
373 |
324 |
0 |
| VCDI |
0 |
24 |
55 |
126 |
394 |
2728 |
9911 |
6911 |
|
Date: 2023-04-08:
| 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 |
57018 |
21123 |
5892 |
628 |
221 |
71 |
15 |
0 |
| OW |
52 |
216 |
257 |
315 |
178 |
64 |
15 |
0 |
| VODI |
0 |
97 |
150 |
311 |
309 |
126 |
53 |
0 |
| ODI |
0 |
34 |
71 |
148 |
292 |
225 |
97 |
0 |
| CDI |
0 |
39 |
32 |
126 |
291 |
491 |
237 |
0 |
| VCDI |
0 |
22 |
60 |
89 |
399 |
3444 |
10806 |
5086 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
57018 |
21123 |
5898 |
637 |
228 |
82 |
15 |
0 |
| OW |
52 |
204 |
233 |
289 |
153 |
62 |
15 |
0 |
| VODI |
0 |
110 |
153 |
309 |
300 |
126 |
64 |
0 |
| ODI |
0 |
36 |
80 |
145 |
293 |
221 |
87 |
0 |
| CDI |
0 |
32 |
40 |
126 |
260 |
438 |
226 |
0 |
| VCDI |
0 |
26 |
58 |
111 |
456 |
3492 |
10816 |
5086 |
|
Date: 2023-04-10:
| 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 |
59950 |
20354 |
3399 |
851 |
272 |
44 |
2 |
0 |
| OW |
52 |
299 |
208 |
353 |
196 |
59 |
14 |
0 |
| VODI |
0 |
138 |
133 |
290 |
393 |
119 |
41 |
0 |
| ODI |
0 |
54 |
59 |
169 |
415 |
276 |
103 |
0 |
| CDI |
0 |
49 |
18 |
75 |
332 |
896 |
579 |
0 |
| VCDI |
0 |
21 |
27 |
64 |
328 |
3390 |
9780 |
5298 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
59950 |
20289 |
3448 |
940 |
345 |
100 |
22 |
0 |
| OW |
52 |
274 |
128 |
279 |
205 |
74 |
31 |
0 |
| VODI |
0 |
196 |
101 |
204 |
343 |
173 |
67 |
0 |
| ODI |
0 |
80 |
78 |
156 |
249 |
208 |
147 |
0 |
| CDI |
0 |
60 |
46 |
124 |
359 |
735 |
540 |
0 |
| VCDI |
0 |
16 |
43 |
99 |
435 |
3494 |
9712 |
5298 |
|
Date: 2023-04-12:
| 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 |
63946 |
18486 |
1404 |
1018 |
285 |
76 |
23 |
0 |
| OW |
52 |
270 |
100 |
349 |
247 |
86 |
50 |
0 |
| VODI |
0 |
142 |
113 |
218 |
373 |
235 |
92 |
0 |
| ODI |
0 |
55 |
57 |
150 |
266 |
328 |
132 |
0 |
| CDI |
0 |
64 |
27 |
82 |
403 |
946 |
749 |
0 |
| VCDI |
0 |
11 |
13 |
79 |
367 |
3052 |
9170 |
5584 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
63946 |
18298 |
1385 |
1018 |
347 |
125 |
72 |
0 |
| OW |
52 |
303 |
78 |
296 |
212 |
113 |
63 |
0 |
| VODI |
0 |
214 |
82 |
181 |
292 |
270 |
124 |
0 |
| ODI |
0 |
98 |
85 |
147 |
212 |
298 |
186 |
0 |
| CDI |
0 |
86 |
54 |
156 |
423 |
755 |
759 |
0 |
| VCDI |
0 |
29 |
30 |
98 |
455 |
3162 |
9012 |
5584 |
|
Date: 2023-04-14:
| 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 |
62843 |
19858 |
1621 |
845 |
307 |
70 |
23 |
0 |
| OW |
52 |
246 |
133 |
325 |
245 |
116 |
52 |
0 |
| VODI |
0 |
122 |
109 |
256 |
324 |
215 |
87 |
0 |
| ODI |
0 |
54 |
47 |
142 |
297 |
293 |
136 |
0 |
| CDI |
0 |
62 |
20 |
79 |
339 |
901 |
983 |
0 |
| VCDI |
0 |
12 |
10 |
76 |
493 |
3330 |
8968 |
5009 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
62843 |
19666 |
1581 |
882 |
364 |
133 |
57 |
0 |
| OW |
52 |
264 |
118 |
259 |
216 |
133 |
69 |
0 |
| VODI |
0 |
186 |
88 |
197 |
287 |
263 |
142 |
0 |
| ODI |
0 |
123 |
75 |
144 |
216 |
293 |
152 |
0 |
| CDI |
0 |
89 |
57 |
124 |
345 |
655 |
651 |
0 |
| VCDI |
0 |
26 |
21 |
117 |
577 |
3448 |
9178 |
5009 |
|
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