Validation of sea ice concentration - Full domain
Bulletin date: 2024-12-26
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-12-20:
| 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 |
79977 |
15668 |
463 |
423 |
18 |
4 |
0 |
0 |
| OW |
112 |
1160 |
457 |
1302 |
198 |
47 |
0 |
0 |
| VODI |
43 |
296 |
135 |
1225 |
1144 |
272 |
0 |
0 |
| ODI |
1 |
39 |
39 |
537 |
1097 |
583 |
12 |
0 |
| CDI |
4 |
2 |
2 |
258 |
1356 |
3211 |
1742 |
0 |
| VCDI |
0 |
0 |
0 |
22 |
342 |
4497 |
22898 |
55157 |
|
...date precedes bulletin
|
Date: 2024-12-22:
| 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 |
78665 |
14852 |
391 |
404 |
7 |
0 |
0 |
0 |
| OW |
57 |
1607 |
428 |
1174 |
380 |
32 |
0 |
0 |
| VODI |
65 |
445 |
166 |
1244 |
1030 |
340 |
18 |
0 |
| ODI |
3 |
77 |
57 |
468 |
1121 |
921 |
76 |
0 |
| CDI |
5 |
17 |
29 |
294 |
1204 |
2204 |
1777 |
10 |
| VCDI |
0 |
3 |
14 |
63 |
592 |
3754 |
20603 |
60146 |
|
...date precedes bulletin
|
Date: 2024-12-24:
| 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 |
78800 |
14204 |
298 |
275 |
7 |
0 |
0 |
0 |
| OW |
46 |
2014 |
549 |
921 |
104 |
0 |
0 |
0 |
| VODI |
8 |
353 |
223 |
1569 |
1030 |
41 |
3 |
0 |
| ODI |
4 |
29 |
48 |
396 |
1640 |
717 |
12 |
0 |
| CDI |
2 |
17 |
45 |
242 |
1050 |
2647 |
483 |
10 |
| VCDI |
0 |
0 |
2 |
173 |
688 |
4606 |
20314 |
61173 |
|
...date precedes bulletin
|
Date: 2024-12-26:
| 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 |
78769 |
13846 |
166 |
182 |
18 |
0 |
0 |
0 |
| OW |
135 |
2334 |
384 |
658 |
163 |
1 |
0 |
0 |
| VODI |
27 |
745 |
273 |
1142 |
916 |
167 |
4 |
0 |
| ODI |
10 |
158 |
81 |
550 |
1322 |
757 |
29 |
0 |
| CDI |
1 |
61 |
64 |
506 |
1436 |
2075 |
554 |
18 |
| VCDI |
0 |
26 |
39 |
271 |
1253 |
4740 |
21771 |
59091 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
78838 |
14872 |
337 |
400 |
36 |
0 |
0 |
0 |
| OW |
73 |
1676 |
341 |
854 |
306 |
12 |
0 |
0 |
| VODI |
24 |
481 |
192 |
987 |
1164 |
308 |
5 |
0 |
| ODI |
7 |
118 |
64 |
460 |
1316 |
889 |
57 |
0 |
| CDI |
0 |
22 |
65 |
425 |
1253 |
2246 |
904 |
36 |
| VCDI |
0 |
1 |
8 |
183 |
1033 |
4285 |
21392 |
59073 |
|
Date: 2024-12-28:
| 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 |
78069 |
14110 |
218 |
133 |
24 |
5 |
0 |
0 |
| OW |
174 |
2166 |
391 |
619 |
164 |
35 |
0 |
0 |
| VODI |
49 |
862 |
250 |
1382 |
720 |
158 |
6 |
0 |
| ODI |
25 |
181 |
117 |
649 |
1165 |
500 |
35 |
0 |
| CDI |
2 |
100 |
64 |
487 |
1448 |
2070 |
1033 |
19 |
| VCDI |
0 |
133 |
42 |
236 |
856 |
5131 |
22725 |
58190 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
78185 |
15181 |
399 |
389 |
76 |
20 |
0 |
0 |
| OW |
65 |
1485 |
345 |
886 |
312 |
67 |
2 |
0 |
| VODI |
42 |
552 |
174 |
1210 |
870 |
311 |
17 |
0 |
| ODI |
27 |
152 |
86 |
493 |
1227 |
689 |
78 |
1 |
| CDI |
0 |
90 |
51 |
376 |
1304 |
1908 |
1160 |
53 |
| VCDI |
0 |
92 |
27 |
152 |
588 |
4904 |
22542 |
58155 |
|
Date: 2024-12-30:
| 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 |
77720 |
15228 |
209 |
296 |
1 |
0 |
0 |
0 |
| OW |
43 |
1792 |
690 |
998 |
92 |
11 |
0 |
0 |
| VODI |
8 |
217 |
125 |
1992 |
915 |
34 |
0 |
0 |
| ODI |
4 |
51 |
20 |
457 |
1740 |
278 |
0 |
1 |
| CDI |
0 |
37 |
35 |
259 |
1209 |
2657 |
282 |
17 |
| VCDI |
0 |
0 |
0 |
89 |
518 |
4740 |
17951 |
64027 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
77731 |
15206 |
374 |
598 |
60 |
23 |
0 |
0 |
| OW |
33 |
1353 |
349 |
960 |
338 |
48 |
1 |
0 |
| VODI |
10 |
512 |
224 |
1298 |
941 |
192 |
11 |
0 |
| ODI |
1 |
124 |
64 |
612 |
1140 |
508 |
63 |
0 |
| CDI |
0 |
78 |
41 |
455 |
1329 |
1771 |
1010 |
105 |
| VCDI |
0 |
52 |
27 |
168 |
667 |
5178 |
17148 |
63940 |
|
Date: 2025-01-01:
| 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 |
76935 |
16031 |
307 |
273 |
16 |
0 |
0 |
0 |
| OW |
108 |
1638 |
535 |
1065 |
245 |
9 |
0 |
0 |
| VODI |
16 |
342 |
179 |
1104 |
832 |
231 |
4 |
0 |
| ODI |
7 |
92 |
85 |
520 |
880 |
870 |
32 |
0 |
| CDI |
2 |
73 |
38 |
473 |
880 |
2235 |
835 |
16 |
| VCDI |
0 |
22 |
19 |
188 |
970 |
5637 |
26781 |
54218 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
76950 |
15913 |
453 |
446 |
61 |
17 |
1 |
0 |
| OW |
95 |
1301 |
331 |
750 |
320 |
75 |
17 |
0 |
| VODI |
13 |
578 |
188 |
1089 |
756 |
305 |
35 |
0 |
| ODI |
8 |
167 |
85 |
593 |
925 |
543 |
165 |
0 |
| CDI |
2 |
122 |
70 |
482 |
997 |
1821 |
1048 |
74 |
| VCDI |
0 |
117 |
36 |
263 |
764 |
6221 |
26386 |
54160 |
|
Date: 2025-01-03:
| 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 |
77371 |
15032 |
328 |
403 |
23 |
0 |
0 |
0 |
| OW |
117 |
1496 |
427 |
1049 |
441 |
54 |
0 |
0 |
| VODI |
8 |
461 |
219 |
997 |
654 |
217 |
54 |
0 |
| ODI |
1 |
151 |
62 |
607 |
855 |
455 |
144 |
0 |
| CDI |
7 |
121 |
54 |
548 |
1133 |
2133 |
926 |
8 |
| VCDI |
2 |
111 |
62 |
407 |
1061 |
6904 |
24288 |
55352 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
77381 |
14664 |
393 |
565 |
123 |
1 |
0 |
0 |
| OW |
107 |
1379 |
278 |
745 |
375 |
68 |
0 |
0 |
| VODI |
8 |
714 |
241 |
995 |
665 |
291 |
42 |
0 |
| ODI |
2 |
225 |
103 |
616 |
745 |
493 |
189 |
0 |
| CDI |
8 |
186 |
90 |
650 |
1216 |
1539 |
735 |
33 |
| VCDI |
0 |
204 |
47 |
440 |
1043 |
7371 |
24446 |
55327 |
|
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