Validation of sea ice concentration - Full domain
Bulletin date: 2025-01-16
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-01-10:
| 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 |
63966 |
14055 |
245 |
270 |
79 |
4 |
0 |
0 |
| OW |
829 |
1093 |
206 |
409 |
324 |
157 |
5 |
0 |
| VODI |
1892 |
406 |
162 |
452 |
533 |
563 |
86 |
0 |
| ODI |
1790 |
104 |
67 |
266 |
510 |
595 |
228 |
0 |
| CDI |
0 |
87 |
60 |
197 |
640 |
2005 |
1478 |
2 |
| VCDI |
0 |
16 |
12 |
73 |
310 |
2823 |
28575 |
55236 |
|
...date precedes bulletin
|
Date: 2025-01-12:
| 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 |
66547 |
11026 |
270 |
77 |
17 |
0 |
0 |
0 |
| OW |
905 |
1347 |
251 |
403 |
220 |
32 |
6 |
0 |
| VODI |
1869 |
443 |
171 |
457 |
620 |
226 |
140 |
0 |
| ODI |
1814 |
166 |
64 |
277 |
556 |
449 |
386 |
0 |
| CDI |
0 |
122 |
47 |
272 |
679 |
1533 |
964 |
59 |
| VCDI |
0 |
115 |
64 |
201 |
548 |
3040 |
30890 |
53537 |
|
...date precedes bulletin
|
Date: 2025-01-14:
| 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 |
65408 |
12385 |
153 |
134 |
23 |
3 |
0 |
0 |
| OW |
811 |
1317 |
260 |
419 |
171 |
32 |
2 |
0 |
| VODI |
1845 |
357 |
144 |
415 |
500 |
186 |
31 |
0 |
| ODI |
1839 |
121 |
55 |
218 |
443 |
422 |
77 |
0 |
| CDI |
0 |
90 |
57 |
209 |
769 |
1637 |
1282 |
4 |
| VCDI |
0 |
43 |
44 |
139 |
418 |
2853 |
36216 |
49278 |
|
...date precedes bulletin
|
Date: 2025-01-16:
| 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 |
64391 |
12782 |
173 |
167 |
10 |
2 |
2 |
0 |
| OW |
814 |
1395 |
189 |
303 |
157 |
35 |
7 |
0 |
| VODI |
1823 |
480 |
167 |
401 |
387 |
188 |
43 |
0 |
| ODI |
1862 |
198 |
67 |
210 |
385 |
338 |
86 |
0 |
| CDI |
0 |
133 |
82 |
220 |
615 |
1327 |
1174 |
30 |
| VCDI |
0 |
38 |
34 |
109 |
489 |
2483 |
30485 |
56529 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
64417 |
13242 |
219 |
202 |
26 |
2 |
3 |
0 |
| OW |
788 |
1098 |
193 |
370 |
206 |
54 |
10 |
0 |
| VODI |
1845 |
417 |
153 |
386 |
402 |
241 |
68 |
0 |
| ODI |
1840 |
153 |
62 |
206 |
414 |
432 |
170 |
2 |
| CDI |
0 |
85 |
61 |
162 |
622 |
1354 |
1513 |
46 |
| VCDI |
0 |
31 |
24 |
84 |
373 |
2290 |
30033 |
56511 |
|
Date: 2025-01-18:
| 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 |
62267 |
14338 |
173 |
193 |
18 |
4 |
1 |
0 |
| OW |
815 |
1263 |
199 |
338 |
125 |
37 |
1 |
0 |
| VODI |
1809 |
651 |
162 |
423 |
319 |
165 |
24 |
0 |
| ODI |
1884 |
191 |
115 |
265 |
405 |
291 |
61 |
0 |
| CDI |
0 |
101 |
96 |
292 |
598 |
1185 |
900 |
33 |
| VCDI |
0 |
12 |
14 |
128 |
468 |
3105 |
27676 |
59665 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
62291 |
14899 |
237 |
267 |
34 |
4 |
1 |
0 |
| OW |
798 |
970 |
194 |
377 |
192 |
67 |
4 |
0 |
| VODI |
1826 |
479 |
170 |
410 |
369 |
219 |
59 |
0 |
| ODI |
1860 |
136 |
95 |
267 |
413 |
367 |
148 |
0 |
| CDI |
0 |
58 |
52 |
218 |
509 |
1198 |
1197 |
57 |
| VCDI |
0 |
14 |
11 |
100 |
416 |
2932 |
27254 |
59641 |
|
Date: 2025-01-20:
| 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 |
63377 |
13038 |
507 |
97 |
30 |
1 |
0 |
0 |
| OW |
843 |
1264 |
178 |
252 |
88 |
28 |
1 |
0 |
| VODI |
1809 |
485 |
234 |
551 |
336 |
88 |
9 |
0 |
| ODI |
1885 |
100 |
72 |
282 |
629 |
274 |
60 |
0 |
| CDI |
0 |
30 |
31 |
135 |
612 |
1436 |
779 |
2 |
| VCDI |
0 |
6 |
4 |
61 |
457 |
4067 |
32022 |
54650 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
63355 |
12959 |
567 |
192 |
36 |
3 |
0 |
0 |
| OW |
868 |
918 |
155 |
261 |
183 |
44 |
5 |
0 |
| VODI |
1813 |
598 |
116 |
352 |
308 |
147 |
46 |
0 |
| ODI |
1878 |
279 |
86 |
235 |
431 |
357 |
95 |
0 |
| CDI |
0 |
127 |
82 |
213 |
552 |
1243 |
1103 |
22 |
| VCDI |
0 |
42 |
20 |
125 |
642 |
4100 |
31622 |
54630 |
|
Date: 2025-01-22:
| 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 |
62787 |
13518 |
155 |
108 |
20 |
8 |
3 |
0 |
| OW |
813 |
950 |
214 |
261 |
70 |
9 |
1 |
0 |
| VODI |
1796 |
383 |
136 |
403 |
336 |
70 |
4 |
0 |
| ODI |
1914 |
199 |
67 |
198 |
477 |
425 |
34 |
0 |
| CDI |
0 |
104 |
56 |
198 |
618 |
1793 |
967 |
7 |
| VCDI |
0 |
22 |
16 |
80 |
419 |
3853 |
34332 |
52986 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
62786 |
13050 |
152 |
107 |
24 |
10 |
3 |
0 |
| OW |
809 |
942 |
185 |
266 |
77 |
13 |
1 |
0 |
| VODI |
1797 |
569 |
106 |
277 |
281 |
126 |
11 |
0 |
| ODI |
1918 |
340 |
92 |
197 |
367 |
417 |
77 |
1 |
| CDI |
0 |
216 |
82 |
298 |
635 |
1589 |
1144 |
64 |
| VCDI |
0 |
59 |
27 |
103 |
556 |
4003 |
34105 |
52928 |
|
Date: 2025-01-24:
| 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 |
62079 |
13653 |
88 |
77 |
25 |
4 |
0 |
0 |
| OW |
825 |
1108 |
263 |
264 |
68 |
24 |
11 |
0 |
| VODI |
1798 |
564 |
137 |
418 |
330 |
92 |
29 |
0 |
| ODI |
1920 |
249 |
78 |
192 |
411 |
413 |
75 |
0 |
| CDI |
0 |
125 |
49 |
204 |
446 |
1260 |
1762 |
1 |
| VCDI |
0 |
36 |
33 |
97 |
545 |
3231 |
33420 |
54406 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
62026 |
12813 |
86 |
94 |
37 |
17 |
2 |
0 |
| OW |
824 |
1228 |
177 |
184 |
55 |
23 |
18 |
0 |
| VODI |
1828 |
822 |
151 |
343 |
227 |
87 |
27 |
0 |
| ODI |
1944 |
439 |
75 |
203 |
361 |
283 |
107 |
0 |
| CDI |
0 |
362 |
106 |
265 |
407 |
1050 |
1513 |
22 |
| VCDI |
0 |
71 |
53 |
163 |
738 |
3564 |
33630 |
54385 |
|
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