Validation of sea ice concentration - Full domain
Bulletin date: 2023-04-13
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-04-07:
| 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 |
60393 |
21051 |
2498 |
708 |
240 |
70 |
24 |
0 |
| OW |
52 |
199 |
271 |
328 |
189 |
98 |
35 |
0 |
| VODI |
0 |
80 |
190 |
299 |
306 |
180 |
91 |
0 |
| ODI |
0 |
33 |
79 |
162 |
279 |
231 |
164 |
0 |
| CDI |
0 |
33 |
25 |
137 |
320 |
522 |
465 |
19 |
| VCDI |
0 |
26 |
45 |
157 |
648 |
4251 |
28502 |
63648 |
|
...date precedes bulletin
|
Date: 2023-04-09:
| 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 |
56031 |
19708 |
8062 |
920 |
299 |
80 |
16 |
0 |
| OW |
52 |
265 |
203 |
315 |
230 |
74 |
30 |
0 |
| VODI |
0 |
155 |
129 |
272 |
330 |
169 |
59 |
0 |
| ODI |
0 |
66 |
76 |
188 |
317 |
233 |
140 |
7 |
| CDI |
0 |
61 |
30 |
142 |
397 |
643 |
517 |
71 |
| VCDI |
0 |
26 |
30 |
119 |
754 |
5290 |
31976 |
58566 |
|
...date precedes bulletin
|
Date: 2023-04-11:
| 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 |
62367 |
19820 |
1685 |
976 |
282 |
60 |
14 |
0 |
| OW |
52 |
247 |
155 |
354 |
243 |
67 |
29 |
0 |
| VODI |
0 |
127 |
114 |
263 |
446 |
178 |
60 |
0 |
| ODI |
0 |
78 |
45 |
163 |
383 |
341 |
136 |
0 |
| CDI |
0 |
52 |
17 |
87 |
427 |
1333 |
804 |
3 |
| VCDI |
0 |
32 |
17 |
79 |
606 |
5261 |
31146 |
58499 |
|
...date precedes bulletin
|
Date: 2023-04-13:
| 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 |
61800 |
20489 |
1873 |
928 |
287 |
81 |
17 |
0 |
| OW |
52 |
237 |
143 |
370 |
253 |
120 |
46 |
0 |
| VODI |
0 |
99 |
107 |
263 |
364 |
287 |
79 |
0 |
| ODI |
0 |
36 |
41 |
194 |
302 |
330 |
141 |
0 |
| CDI |
0 |
33 |
25 |
96 |
442 |
1029 |
861 |
6 |
| VCDI |
0 |
7 |
12 |
72 |
541 |
5425 |
29453 |
60107 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
61800 |
20529 |
1895 |
958 |
300 |
96 |
33 |
0 |
| OW |
52 |
196 |
127 |
351 |
239 |
120 |
33 |
0 |
| VODI |
0 |
100 |
103 |
266 |
370 |
273 |
81 |
0 |
| ODI |
0 |
35 |
39 |
183 |
293 |
337 |
134 |
0 |
| CDI |
0 |
33 |
26 |
89 |
420 |
976 |
835 |
7 |
| VCDI |
0 |
8 |
11 |
76 |
567 |
5470 |
29481 |
60106 |
|
Date: 2023-04-15:
| 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 |
64779 |
18088 |
1634 |
820 |
289 |
78 |
39 |
0 |
| OW |
52 |
248 |
163 |
350 |
220 |
147 |
37 |
0 |
| VODI |
0 |
163 |
108 |
274 |
316 |
245 |
85 |
0 |
| ODI |
0 |
79 |
54 |
151 |
292 |
312 |
144 |
0 |
| CDI |
0 |
62 |
22 |
105 |
403 |
939 |
913 |
8 |
| VCDI |
0 |
10 |
13 |
102 |
596 |
4929 |
28667 |
61112 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
64779 |
18146 |
1659 |
864 |
315 |
107 |
53 |
0 |
| OW |
52 |
208 |
152 |
312 |
209 |
134 |
27 |
0 |
| VODI |
0 |
141 |
97 |
289 |
296 |
239 |
89 |
0 |
| ODI |
0 |
82 |
47 |
129 |
295 |
300 |
143 |
0 |
| CDI |
0 |
62 |
26 |
107 |
402 |
968 |
1007 |
8 |
| VCDI |
0 |
11 |
13 |
101 |
599 |
4902 |
28566 |
61112 |
|
Date: 2023-04-17:
| 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 |
60571 |
20401 |
3600 |
845 |
241 |
43 |
22 |
0 |
| OW |
52 |
193 |
326 |
408 |
242 |
58 |
28 |
0 |
| VODI |
0 |
80 |
168 |
426 |
388 |
191 |
25 |
0 |
| ODI |
0 |
22 |
48 |
180 |
415 |
413 |
109 |
0 |
| CDI |
0 |
11 |
18 |
119 |
531 |
1475 |
665 |
4 |
| VCDI |
0 |
21 |
22 |
160 |
790 |
4876 |
25375 |
63486 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
60571 |
20380 |
3667 |
969 |
321 |
89 |
68 |
0 |
| OW |
52 |
161 |
215 |
317 |
223 |
76 |
32 |
0 |
| VODI |
0 |
78 |
152 |
319 |
329 |
197 |
49 |
0 |
| ODI |
0 |
59 |
59 |
161 |
292 |
359 |
143 |
0 |
| CDI |
0 |
43 |
54 |
133 |
446 |
1049 |
727 |
8 |
| VCDI |
0 |
7 |
35 |
239 |
996 |
5286 |
25205 |
63482 |
|
Date: 2023-04-19:
| 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 |
59498 |
21992 |
3477 |
946 |
249 |
29 |
40 |
0 |
| OW |
51 |
217 |
218 |
367 |
258 |
86 |
23 |
0 |
| VODI |
0 |
84 |
103 |
323 |
380 |
219 |
39 |
0 |
| ODI |
0 |
30 |
36 |
200 |
343 |
341 |
176 |
0 |
| CDI |
0 |
32 |
18 |
162 |
539 |
1128 |
767 |
12 |
| VCDI |
0 |
14 |
14 |
203 |
1022 |
5406 |
31257 |
56749 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
59498 |
21879 |
3436 |
993 |
316 |
75 |
67 |
0 |
| OW |
51 |
209 |
180 |
265 |
220 |
94 |
34 |
0 |
| VODI |
0 |
146 |
136 |
262 |
271 |
238 |
110 |
0 |
| ODI |
0 |
83 |
44 |
192 |
305 |
302 |
255 |
1 |
| CDI |
0 |
47 |
44 |
234 |
509 |
885 |
747 |
17 |
| VCDI |
0 |
5 |
26 |
255 |
1170 |
5615 |
31089 |
56743 |
|
Date: 2023-04-21:
| 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 |
60725 |
20130 |
3811 |
1021 |
252 |
81 |
38 |
0 |
| OW |
51 |
301 |
189 |
329 |
300 |
101 |
27 |
0 |
| VODI |
0 |
168 |
99 |
280 |
357 |
213 |
103 |
0 |
| ODI |
0 |
54 |
64 |
225 |
323 |
364 |
208 |
0 |
| CDI |
0 |
37 |
37 |
200 |
582 |
1049 |
888 |
7 |
| VCDI |
0 |
14 |
27 |
207 |
1319 |
6361 |
32057 |
54449 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
60725 |
19990 |
3774 |
1065 |
363 |
114 |
72 |
0 |
| OW |
51 |
289 |
173 |
238 |
253 |
104 |
70 |
0 |
| VODI |
0 |
199 |
100 |
266 |
292 |
259 |
153 |
0 |
| ODI |
0 |
148 |
48 |
211 |
323 |
325 |
186 |
1 |
| CDI |
0 |
64 |
91 |
235 |
538 |
924 |
820 |
32 |
| VCDI |
0 |
14 |
41 |
247 |
1364 |
6443 |
32020 |
54423 |
|
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