Validation of sea ice concentration - Full domain
Bulletin date: 2023-03-30
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-03-24:
| 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 |
57701 |
22833 |
3230 |
674 |
247 |
88 |
13 |
0 |
| OW |
54 |
322 |
176 |
348 |
245 |
127 |
13 |
0 |
| VODI |
0 |
187 |
101 |
261 |
311 |
232 |
43 |
0 |
| ODI |
0 |
79 |
46 |
132 |
315 |
304 |
111 |
0 |
| CDI |
0 |
35 |
26 |
95 |
405 |
552 |
378 |
34 |
| VCDI |
0 |
4 |
25 |
76 |
707 |
4664 |
33868 |
57986 |
|
...date precedes bulletin
|
Date: 2023-03-26:
| 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 |
60305 |
20864 |
2500 |
610 |
262 |
143 |
15 |
0 |
| OW |
56 |
336 |
181 |
312 |
230 |
133 |
32 |
0 |
| VODI |
0 |
158 |
93 |
278 |
302 |
227 |
92 |
0 |
| ODI |
0 |
68 |
35 |
129 |
269 |
328 |
161 |
0 |
| CDI |
0 |
34 |
21 |
94 |
373 |
762 |
675 |
6 |
| VCDI |
0 |
2 |
4 |
63 |
534 |
4697 |
38167 |
53497 |
|
...date precedes bulletin
|
Date: 2023-03-28:
| 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 |
59306 |
19661 |
4539 |
649 |
297 |
110 |
23 |
0 |
| OW |
62 |
225 |
219 |
364 |
235 |
100 |
25 |
0 |
| VODI |
0 |
103 |
80 |
282 |
384 |
214 |
75 |
0 |
| ODI |
0 |
21 |
17 |
121 |
281 |
354 |
130 |
0 |
| CDI |
0 |
13 |
5 |
52 |
305 |
914 |
680 |
33 |
| VCDI |
0 |
0 |
0 |
28 |
544 |
4006 |
37829 |
54762 |
|
...date precedes bulletin
|
Date: 2023-03-30:
| 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 |
59425 |
20198 |
3774 |
673 |
347 |
147 |
44 |
0 |
| OW |
62 |
228 |
270 |
300 |
214 |
119 |
36 |
0 |
| VODI |
0 |
112 |
103 |
287 |
280 |
249 |
110 |
0 |
| ODI |
0 |
32 |
15 |
146 |
251 |
287 |
191 |
0 |
| CDI |
0 |
13 |
3 |
61 |
336 |
789 |
622 |
53 |
| VCDI |
0 |
6 |
3 |
33 |
431 |
3742 |
31069 |
61987 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
59425 |
20257 |
3800 |
693 |
345 |
149 |
45 |
0 |
| OW |
62 |
191 |
240 |
287 |
212 |
116 |
30 |
0 |
| VODI |
0 |
96 |
99 |
281 |
294 |
265 |
125 |
0 |
| ODI |
0 |
28 |
24 |
133 |
258 |
295 |
194 |
0 |
| CDI |
0 |
11 |
2 |
75 |
323 |
771 |
601 |
73 |
| VCDI |
0 |
6 |
3 |
31 |
427 |
3737 |
31077 |
61967 |
|
Date: 2023-04-01:
| 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 |
60922 |
19245 |
3404 |
764 |
319 |
107 |
46 |
0 |
| OW |
62 |
243 |
224 |
343 |
184 |
101 |
39 |
0 |
| VODI |
0 |
142 |
125 |
266 |
276 |
186 |
137 |
0 |
| ODI |
0 |
38 |
43 |
165 |
284 |
318 |
212 |
0 |
| CDI |
0 |
7 |
7 |
110 |
371 |
643 |
624 |
16 |
| VCDI |
0 |
0 |
0 |
20 |
614 |
3189 |
27780 |
65472 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
60922 |
19288 |
3440 |
776 |
320 |
99 |
49 |
0 |
| OW |
62 |
221 |
182 |
327 |
169 |
111 |
31 |
0 |
| VODI |
0 |
129 |
128 |
267 |
300 |
186 |
149 |
0 |
| ODI |
0 |
32 |
47 |
170 |
275 |
312 |
231 |
1 |
| CDI |
0 |
5 |
6 |
110 |
384 |
651 |
617 |
16 |
| VCDI |
0 |
0 |
0 |
18 |
600 |
3185 |
27761 |
65471 |
|
Date: 2023-04-03:
| 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 |
56251 |
23101 |
4245 |
745 |
196 |
63 |
5 |
0 |
| OW |
53 |
254 |
335 |
366 |
185 |
72 |
9 |
0 |
| VODI |
0 |
108 |
164 |
357 |
322 |
187 |
38 |
0 |
| ODI |
0 |
24 |
50 |
194 |
313 |
305 |
102 |
0 |
| CDI |
0 |
9 |
6 |
77 |
370 |
754 |
551 |
6 |
| VCDI |
0 |
0 |
0 |
35 |
432 |
3480 |
33010 |
60274 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
56251 |
23079 |
4307 |
922 |
309 |
110 |
18 |
0 |
| OW |
53 |
240 |
246 |
281 |
186 |
118 |
68 |
0 |
| VODI |
0 |
140 |
155 |
243 |
289 |
215 |
133 |
0 |
| ODI |
0 |
27 |
73 |
157 |
219 |
296 |
207 |
0 |
| CDI |
0 |
10 |
19 |
120 |
316 |
639 |
482 |
11 |
| VCDI |
0 |
0 |
0 |
51 |
499 |
3483 |
32807 |
60269 |
|
Date: 2023-04-05:
| 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 |
55065 |
22725 |
6201 |
638 |
204 |
102 |
25 |
0 |
| OW |
53 |
163 |
364 |
302 |
184 |
85 |
12 |
0 |
| VODI |
0 |
67 |
186 |
300 |
268 |
176 |
43 |
0 |
| ODI |
0 |
25 |
79 |
171 |
259 |
249 |
115 |
0 |
| CDI |
0 |
11 |
32 |
125 |
284 |
434 |
471 |
10 |
| VCDI |
0 |
5 |
41 |
109 |
596 |
3617 |
25504 |
67748 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
55065 |
22678 |
6147 |
721 |
279 |
149 |
43 |
0 |
| OW |
53 |
176 |
353 |
255 |
163 |
114 |
77 |
0 |
| VODI |
0 |
81 |
215 |
243 |
251 |
216 |
150 |
0 |
| ODI |
0 |
36 |
95 |
152 |
218 |
219 |
214 |
2 |
| CDI |
0 |
19 |
47 |
142 |
280 |
374 |
454 |
6 |
| VCDI |
0 |
6 |
46 |
132 |
604 |
3591 |
25232 |
67750 |
|
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 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
60393 |
20930 |
2454 |
802 |
316 |
106 |
59 |
0 |
| OW |
52 |
259 |
266 |
243 |
218 |
125 |
100 |
0 |
| VODI |
0 |
102 |
183 |
250 |
261 |
208 |
191 |
0 |
| ODI |
0 |
39 |
99 |
130 |
231 |
229 |
215 |
2 |
| CDI |
0 |
53 |
42 |
157 |
292 |
474 |
348 |
14 |
| VCDI |
0 |
39 |
64 |
209 |
664 |
4210 |
28368 |
63651 |
|
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