Validation of sea ice concentration - Full domain
Bulletin date: 2024-04-25
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-04-19:
| 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 |
57109 |
12935 |
44 |
56 |
17 |
1 |
0 |
0 |
| OW |
747 |
1631 |
204 |
198 |
55 |
13 |
10 |
0 |
| VODI |
1785 |
558 |
284 |
577 |
413 |
119 |
51 |
0 |
| ODI |
1824 |
176 |
95 |
356 |
615 |
498 |
81 |
0 |
| CDI |
0 |
189 |
91 |
291 |
915 |
1986 |
1772 |
1 |
| VCDI |
0 |
131 |
78 |
320 |
760 |
3818 |
33117 |
56889 |
|
...date precedes bulletin
|
Date: 2024-04-21:
| 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 |
57769 |
11756 |
46 |
115 |
29 |
0 |
0 |
0 |
| OW |
742 |
1871 |
121 |
184 |
118 |
19 |
0 |
0 |
| VODI |
1786 |
888 |
283 |
598 |
384 |
166 |
7 |
0 |
| ODI |
1823 |
330 |
114 |
366 |
570 |
430 |
34 |
0 |
| CDI |
0 |
292 |
95 |
363 |
1197 |
2021 |
1067 |
0 |
| VCDI |
0 |
212 |
68 |
305 |
996 |
3821 |
35180 |
54644 |
|
...date precedes bulletin
|
Date: 2024-04-23:
| 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 |
57720 |
12476 |
72 |
92 |
10 |
0 |
0 |
0 |
| OW |
726 |
2199 |
203 |
210 |
33 |
10 |
0 |
0 |
| VODI |
1803 |
551 |
300 |
792 |
411 |
56 |
4 |
0 |
| ODI |
1802 |
150 |
98 |
422 |
795 |
306 |
24 |
0 |
| CDI |
0 |
279 |
73 |
285 |
1432 |
2453 |
1094 |
0 |
| VCDI |
0 |
98 |
52 |
158 |
589 |
4581 |
35652 |
52799 |
|
...date precedes bulletin
|
Date: 2024-04-25:
| 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 |
58321 |
12164 |
55 |
46 |
17 |
0 |
0 |
0 |
| OW |
812 |
1952 |
192 |
179 |
43 |
24 |
1 |
0 |
| VODI |
1813 |
773 |
218 |
691 |
374 |
61 |
9 |
0 |
| ODI |
1789 |
324 |
114 |
413 |
615 |
243 |
43 |
0 |
| CDI |
0 |
475 |
152 |
568 |
1251 |
2516 |
1444 |
28 |
| VCDI |
0 |
94 |
85 |
473 |
980 |
4397 |
38046 |
49015 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
58318 |
12255 |
60 |
51 |
17 |
0 |
0 |
0 |
| OW |
815 |
1841 |
183 |
182 |
43 |
16 |
1 |
0 |
| VODI |
1810 |
765 |
210 |
665 |
370 |
67 |
6 |
0 |
| ODI |
1792 |
338 |
122 |
401 |
546 |
256 |
45 |
1 |
| CDI |
0 |
511 |
164 |
615 |
1345 |
2530 |
1472 |
30 |
| VCDI |
0 |
72 |
77 |
456 |
959 |
4372 |
38019 |
49012 |
|
Date: 2024-04-27:
| 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 |
58063 |
12478 |
50 |
41 |
8 |
0 |
0 |
0 |
| OW |
756 |
1869 |
242 |
228 |
63 |
14 |
5 |
0 |
| VODI |
1825 |
785 |
225 |
646 |
318 |
104 |
24 |
0 |
| ODI |
1771 |
394 |
134 |
491 |
663 |
242 |
67 |
0 |
| CDI |
0 |
486 |
206 |
726 |
1565 |
2651 |
1584 |
12 |
| VCDI |
0 |
63 |
55 |
317 |
1365 |
6008 |
36857 |
47409 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
58063 |
12553 |
54 |
44 |
10 |
0 |
0 |
0 |
| OW |
756 |
1757 |
222 |
221 |
51 |
10 |
4 |
0 |
| VODI |
1825 |
796 |
239 |
631 |
323 |
108 |
27 |
0 |
| ODI |
1771 |
393 |
127 |
477 |
616 |
262 |
73 |
0 |
| CDI |
0 |
535 |
227 |
785 |
1700 |
2684 |
1535 |
15 |
| VCDI |
0 |
41 |
43 |
291 |
1282 |
5955 |
36898 |
47406 |
|
Date: 2024-04-29:
| 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 |
57839 |
13301 |
114 |
64 |
16 |
0 |
0 |
0 |
| OW |
810 |
2179 |
360 |
328 |
54 |
2 |
0 |
0 |
| VODI |
1865 |
486 |
332 |
840 |
371 |
53 |
5 |
0 |
| ODI |
1720 |
314 |
168 |
632 |
1049 |
362 |
70 |
0 |
| CDI |
0 |
59 |
45 |
388 |
1854 |
3794 |
1879 |
3 |
| VCDI |
0 |
23 |
23 |
106 |
661 |
5340 |
38623 |
44678 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
57837 |
12672 |
103 |
36 |
9 |
1 |
0 |
0 |
| OW |
805 |
1675 |
216 |
268 |
90 |
13 |
4 |
0 |
| VODI |
1833 |
897 |
285 |
520 |
254 |
72 |
38 |
0 |
| ODI |
1759 |
466 |
169 |
495 |
590 |
238 |
147 |
0 |
| CDI |
0 |
588 |
222 |
807 |
1928 |
3147 |
2468 |
3 |
| VCDI |
0 |
64 |
47 |
232 |
1134 |
6080 |
37920 |
44678 |
|
Date: 2024-05-01:
| 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 |
58812 |
12386 |
76 |
50 |
5 |
0 |
0 |
0 |
| OW |
916 |
2079 |
299 |
315 |
51 |
4 |
2 |
0 |
| VODI |
1877 |
595 |
312 |
740 |
332 |
58 |
25 |
0 |
| ODI |
1707 |
236 |
163 |
602 |
921 |
381 |
160 |
0 |
| CDI |
0 |
73 |
54 |
446 |
1971 |
4222 |
2528 |
0 |
| VCDI |
0 |
22 |
26 |
114 |
976 |
5177 |
34367 |
47730 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
58697 |
11727 |
66 |
27 |
3 |
0 |
0 |
0 |
| OW |
990 |
1537 |
163 |
197 |
45 |
10 |
2 |
0 |
| VODI |
1881 |
1055 |
239 |
454 |
234 |
90 |
35 |
0 |
| ODI |
1744 |
506 |
200 |
542 |
606 |
344 |
204 |
0 |
| CDI |
0 |
468 |
210 |
858 |
2200 |
3645 |
2657 |
5 |
| VCDI |
0 |
98 |
52 |
189 |
1168 |
5753 |
34184 |
47725 |
|
Date: 2024-05-03:
| 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 |
58830 |
12643 |
94 |
85 |
10 |
0 |
0 |
0 |
| OW |
814 |
2059 |
279 |
319 |
56 |
16 |
2 |
0 |
| VODI |
1890 |
649 |
337 |
677 |
411 |
80 |
17 |
0 |
| ODI |
1691 |
173 |
123 |
600 |
801 |
337 |
93 |
0 |
| CDI |
0 |
164 |
73 |
508 |
2169 |
4167 |
2708 |
2 |
| VCDI |
0 |
119 |
47 |
263 |
1036 |
4762 |
37860 |
43846 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
58826 |
11503 |
75 |
50 |
3 |
0 |
0 |
0 |
| OW |
814 |
1824 |
135 |
216 |
62 |
22 |
0 |
0 |
| VODI |
1859 |
1230 |
245 |
422 |
258 |
120 |
42 |
0 |
| ODI |
1726 |
580 |
219 |
523 |
682 |
436 |
253 |
5 |
| CDI |
0 |
489 |
211 |
889 |
2166 |
3640 |
2744 |
45 |
| VCDI |
0 |
181 |
68 |
352 |
1312 |
5144 |
37641 |
43798 |
|
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