Validation of sea ice concentration
Bulletin date: 2024-05-23
Model vs. observations, sea ice class contingency tables
Date: 2024-05-17:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2024-05-21:
| 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 |
62190 |
18895 |
2525 |
341 |
69 |
1 |
5 |
0 |
| OW |
147 |
557 |
2299 |
1739 |
165 |
15 |
41 |
0 |
| VODI |
70 |
10 |
431 |
1930 |
1133 |
519 |
401 |
5 |
| ODI |
18 |
0 |
26 |
679 |
1052 |
1628 |
1334 |
9 |
| CDI |
11 |
0 |
6 |
392 |
1065 |
7790 |
8346 |
37 |
| VCDI |
0 |
0 |
0 |
254 |
209 |
1858 |
23607 |
16659 |
|
...date precedes bulletin
|
Date: 2024-05-23:
| 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 |
63315 |
17857 |
3063 |
152 |
24 |
2 |
7 |
0 |
| OW |
181 |
591 |
2743 |
967 |
134 |
38 |
20 |
0 |
| VODI |
41 |
1 |
775 |
1778 |
765 |
249 |
368 |
7 |
| ODI |
18 |
0 |
168 |
853 |
991 |
1122 |
1473 |
13 |
| CDI |
8 |
0 |
157 |
611 |
1201 |
3884 |
12010 |
88 |
| VCDI |
0 |
0 |
53 |
205 |
213 |
1193 |
22591 |
18538 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
63338 |
17959 |
3520 |
220 |
28 |
7 |
7 |
0 |
| OW |
141 |
489 |
2275 |
911 |
142 |
46 |
27 |
0 |
| VODI |
45 |
1 |
798 |
1697 |
692 |
195 |
385 |
7 |
| ODI |
24 |
0 |
151 |
896 |
1008 |
1133 |
1365 |
12 |
| CDI |
15 |
0 |
162 |
629 |
1253 |
3872 |
12114 |
70 |
| VCDI |
0 |
0 |
53 |
213 |
205 |
1235 |
22571 |
18557 |
|
Date: 2024-05-27:
| 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 |
62443 |
20034 |
2875 |
535 |
42 |
7 |
30 |
0 |
| OW |
39 |
337 |
1672 |
1467 |
194 |
40 |
98 |
0 |
| VODI |
4 |
51 |
465 |
1949 |
1076 |
309 |
550 |
0 |
| ODI |
0 |
10 |
136 |
978 |
1402 |
1531 |
1703 |
0 |
| CDI |
0 |
2 |
67 |
501 |
1102 |
4238 |
12591 |
133 |
| VCDI |
0 |
2 |
7 |
55 |
439 |
1362 |
18791 |
19201 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
62348 |
19676 |
2509 |
473 |
36 |
11 |
27 |
0 |
| OW |
88 |
632 |
1669 |
1061 |
182 |
35 |
109 |
0 |
| VODI |
28 |
108 |
699 |
1757 |
630 |
209 |
540 |
0 |
| ODI |
14 |
16 |
215 |
1130 |
1362 |
1053 |
1426 |
0 |
| CDI |
8 |
3 |
121 |
972 |
1514 |
4424 |
13885 |
995 |
| VCDI |
0 |
1 |
9 |
92 |
531 |
1755 |
17776 |
18339 |
|
Date: 2024-05-29:
| 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 |
62408 |
20590 |
2531 |
589 |
30 |
4 |
35 |
0 |
| OW |
33 |
485 |
1271 |
1467 |
161 |
49 |
132 |
0 |
| VODI |
0 |
66 |
517 |
2078 |
878 |
269 |
629 |
0 |
| ODI |
0 |
14 |
160 |
1198 |
1351 |
1446 |
2124 |
10 |
| CDI |
0 |
3 |
94 |
884 |
1072 |
2989 |
14203 |
186 |
| VCDI |
0 |
0 |
0 |
84 |
536 |
925 |
19997 |
16970 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
62337 |
19899 |
2151 |
612 |
29 |
5 |
29 |
0 |
| OW |
65 |
966 |
1161 |
1058 |
229 |
48 |
120 |
0 |
| VODI |
24 |
226 |
755 |
1663 |
563 |
223 |
596 |
0 |
| ODI |
15 |
62 |
253 |
1288 |
1238 |
931 |
1944 |
0 |
| CDI |
0 |
5 |
195 |
1535 |
1359 |
3297 |
15136 |
1465 |
| VCDI |
0 |
0 |
58 |
144 |
610 |
1178 |
19295 |
15701 |
|
Date: 2024-05-31:
| 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 |
63731 |
20020 |
2237 |
277 |
43 |
9 |
25 |
0 |
| OW |
25 |
494 |
1874 |
776 |
293 |
84 |
100 |
0 |
| VODI |
0 |
52 |
940 |
1504 |
946 |
599 |
541 |
0 |
| ODI |
0 |
5 |
256 |
956 |
1279 |
2355 |
2220 |
33 |
| CDI |
0 |
2 |
126 |
833 |
1031 |
2925 |
14553 |
165 |
| VCDI |
0 |
0 |
3 |
161 |
238 |
619 |
18241 |
17897 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
63682 |
19362 |
2041 |
261 |
94 |
21 |
58 |
0 |
| OW |
43 |
894 |
1375 |
671 |
290 |
92 |
166 |
0 |
| VODI |
24 |
175 |
1042 |
1121 |
744 |
422 |
601 |
0 |
| ODI |
7 |
59 |
543 |
959 |
979 |
1479 |
1736 |
4 |
| CDI |
0 |
83 |
249 |
1149 |
1243 |
3582 |
13449 |
2027 |
| VCDI |
0 |
0 |
186 |
346 |
480 |
995 |
19670 |
16064 |
|
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