Validation of sea ice concentration - European sector
Bulletin date: 2023-03-23
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-03-17:
| 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 |
61025 |
20940 |
1879 |
641 |
229 |
86 |
39 |
0 |
| OW |
52 |
366 |
221 |
334 |
180 |
101 |
14 |
0 |
| VODI |
0 |
136 |
98 |
286 |
352 |
189 |
29 |
0 |
| ODI |
0 |
82 |
30 |
133 |
305 |
309 |
85 |
0 |
| CDI |
0 |
49 |
23 |
79 |
224 |
855 |
417 |
0 |
| VCDI |
0 |
18 |
21 |
67 |
449 |
2516 |
9472 |
6769 |
|
...date precedes bulletin
|
Date: 2023-03-19:
| 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 |
56945 |
24542 |
2389 |
576 |
202 |
80 |
44 |
0 |
| OW |
52 |
307 |
247 |
346 |
178 |
77 |
19 |
0 |
| VODI |
0 |
136 |
77 |
337 |
297 |
172 |
42 |
0 |
| ODI |
0 |
82 |
34 |
124 |
292 |
310 |
90 |
0 |
| CDI |
0 |
28 |
18 |
62 |
226 |
746 |
355 |
0 |
| VCDI |
0 |
23 |
21 |
67 |
284 |
2100 |
14510 |
2663 |
|
...date precedes bulletin
|
Date: 2023-03-21:
| 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 |
55068 |
24547 |
4395 |
604 |
181 |
54 |
13 |
0 |
| OW |
54 |
174 |
218 |
367 |
223 |
55 |
12 |
0 |
| VODI |
0 |
163 |
98 |
255 |
324 |
156 |
32 |
0 |
| ODI |
0 |
72 |
35 |
130 |
257 |
238 |
52 |
0 |
| CDI |
0 |
44 |
24 |
65 |
269 |
599 |
184 |
0 |
| VCDI |
0 |
29 |
22 |
86 |
264 |
2824 |
13265 |
3648 |
|
...date precedes bulletin
|
Date: 2023-03-23:
| 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 |
57519 |
22201 |
3929 |
683 |
214 |
61 |
13 |
0 |
| OW |
54 |
265 |
169 |
326 |
282 |
93 |
9 |
0 |
| VODI |
0 |
187 |
90 |
207 |
324 |
210 |
29 |
0 |
| ODI |
0 |
60 |
55 |
124 |
212 |
258 |
91 |
0 |
| CDI |
0 |
30 |
22 |
101 |
257 |
499 |
332 |
0 |
| VCDI |
0 |
6 |
18 |
90 |
211 |
2810 |
11725 |
5334 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
57519 |
22195 |
3942 |
685 |
261 |
66 |
14 |
0 |
| OW |
54 |
279 |
150 |
313 |
246 |
85 |
8 |
0 |
| VODI |
0 |
181 |
93 |
213 |
313 |
210 |
31 |
0 |
| ODI |
0 |
52 |
52 |
119 |
206 |
246 |
100 |
0 |
| CDI |
0 |
29 |
25 |
104 |
259 |
519 |
330 |
0 |
| VCDI |
0 |
13 |
21 |
97 |
215 |
2805 |
11716 |
5334 |
|
Date: 2023-03-25:
| 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 |
59565 |
21862 |
2132 |
588 |
246 |
123 |
27 |
0 |
| OW |
55 |
262 |
181 |
346 |
207 |
130 |
27 |
0 |
| VODI |
0 |
151 |
85 |
241 |
297 |
203 |
75 |
0 |
| ODI |
0 |
66 |
35 |
112 |
235 |
264 |
111 |
0 |
| CDI |
0 |
20 |
21 |
91 |
283 |
499 |
413 |
0 |
| VCDI |
0 |
3 |
6 |
53 |
420 |
2644 |
10939 |
6082 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
59564 |
21875 |
2136 |
598 |
279 |
138 |
29 |
0 |
| OW |
56 |
257 |
171 |
325 |
186 |
124 |
28 |
0 |
| VODI |
0 |
158 |
89 |
241 |
285 |
190 |
76 |
0 |
| ODI |
0 |
41 |
35 |
113 |
229 |
265 |
118 |
0 |
| CDI |
0 |
27 |
20 |
94 |
272 |
506 |
409 |
0 |
| VCDI |
0 |
6 |
9 |
60 |
437 |
2640 |
10932 |
6082 |
|
Date: 2023-03-27:
| 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 |
59514 |
22041 |
1910 |
531 |
243 |
98 |
11 |
0 |
| OW |
62 |
261 |
183 |
367 |
201 |
96 |
11 |
0 |
| VODI |
0 |
111 |
82 |
305 |
357 |
195 |
56 |
0 |
| ODI |
0 |
31 |
12 |
101 |
324 |
338 |
101 |
0 |
| CDI |
0 |
14 |
8 |
40 |
257 |
831 |
423 |
0 |
| VCDI |
0 |
0 |
0 |
23 |
200 |
2393 |
11184 |
6185 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
59514 |
21989 |
1904 |
638 |
346 |
162 |
23 |
0 |
| OW |
62 |
271 |
156 |
251 |
188 |
136 |
33 |
0 |
| VODI |
0 |
124 |
91 |
245 |
282 |
229 |
94 |
0 |
| ODI |
0 |
39 |
28 |
124 |
236 |
288 |
151 |
0 |
| CDI |
0 |
34 |
15 |
71 |
266 |
686 |
507 |
0 |
| VCDI |
0 |
1 |
1 |
38 |
264 |
2450 |
10978 |
6185 |
|
Date: 2023-03-29:
| 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 |
60717 |
20265 |
2365 |
630 |
307 |
135 |
36 |
0 |
| OW |
62 |
199 |
232 |
294 |
205 |
100 |
44 |
0 |
| VODI |
0 |
93 |
83 |
242 |
326 |
198 |
90 |
0 |
| ODI |
0 |
26 |
10 |
106 |
246 |
283 |
135 |
0 |
| CDI |
0 |
17 |
5 |
60 |
277 |
689 |
467 |
0 |
| VCDI |
0 |
3 |
2 |
53 |
320 |
2614 |
10435 |
6729 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
60717 |
20195 |
2292 |
650 |
386 |
193 |
63 |
0 |
| OW |
62 |
223 |
218 |
232 |
190 |
112 |
72 |
0 |
| VODI |
0 |
96 |
125 |
208 |
283 |
231 |
133 |
0 |
| ODI |
0 |
33 |
45 |
130 |
216 |
239 |
181 |
0 |
| CDI |
0 |
56 |
17 |
99 |
287 |
658 |
464 |
0 |
| VCDI |
0 |
0 |
0 |
66 |
319 |
2586 |
10294 |
6729 |
|
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 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
58483 |
21511 |
3211 |
644 |
354 |
110 |
37 |
0 |
| OW |
62 |
263 |
257 |
256 |
177 |
100 |
56 |
0 |
| VODI |
0 |
116 |
158 |
235 |
282 |
174 |
121 |
0 |
| ODI |
0 |
58 |
52 |
137 |
264 |
210 |
205 |
0 |
| CDI |
0 |
31 |
45 |
121 |
339 |
565 |
712 |
0 |
| VCDI |
0 |
6 |
6 |
53 |
464 |
1750 |
10599 |
6876 |
|
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