Validation of sea ice concentration
Bulletin date: 2024-05-16
Model vs. observations, sea ice class contingency tables
Date: 2024-05-10:
| 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 |
58411 |
19321 |
1853 |
341 |
57 |
53 |
10 |
0 |
| OW |
0 |
2005 |
1983 |
569 |
296 |
137 |
79 |
0 |
| VODI |
0 |
132 |
1307 |
1262 |
758 |
500 |
346 |
0 |
| ODI |
0 |
40 |
270 |
735 |
830 |
1047 |
1300 |
3 |
| CDI |
0 |
99 |
157 |
508 |
914 |
1952 |
8805 |
27 |
| VCDI |
0 |
56 |
233 |
459 |
526 |
892 |
31051 |
19144 |
|
...date precedes bulletin
|
Date: 2024-05-14:
| 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 |
59010 |
20192 |
2462 |
411 |
87 |
9 |
4 |
0 |
| OW |
0 |
1370 |
2221 |
1319 |
273 |
58 |
71 |
0 |
| VODI |
0 |
168 |
658 |
1481 |
1193 |
559 |
399 |
0 |
| ODI |
0 |
76 |
175 |
667 |
983 |
873 |
1368 |
5 |
| CDI |
0 |
164 |
210 |
596 |
1345 |
4290 |
9629 |
20 |
| VCDI |
0 |
7 |
60 |
763 |
345 |
1365 |
27047 |
16535 |
|
...date precedes bulletin
|
Date: 2024-05-16:
| 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 |
59357 |
20474 |
2189 |
305 |
91 |
10 |
3 |
0 |
| OW |
0 |
1370 |
2143 |
1024 |
356 |
139 |
71 |
0 |
| VODI |
0 |
235 |
794 |
1545 |
904 |
525 |
472 |
1 |
| ODI |
0 |
84 |
236 |
661 |
771 |
796 |
1380 |
4 |
| CDI |
0 |
47 |
320 |
756 |
1203 |
3345 |
10196 |
30 |
| VCDI |
0 |
0 |
36 |
881 |
312 |
1019 |
27156 |
17227 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
59357 |
20426 |
2161 |
348 |
116 |
6 |
4 |
0 |
| OW |
0 |
1423 |
2122 |
946 |
356 |
160 |
62 |
0 |
| VODI |
0 |
237 |
858 |
1548 |
850 |
515 |
482 |
0 |
| ODI |
0 |
79 |
248 |
738 |
754 |
730 |
1385 |
5 |
| CDI |
0 |
45 |
289 |
712 |
1254 |
3480 |
10318 |
162 |
| VCDI |
0 |
0 |
40 |
880 |
307 |
943 |
27027 |
17095 |
|
Date: 2024-05-20:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2024-05-22:
| 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 |
62732 |
18179 |
2901 |
331 |
47 |
6 |
8 |
0 |
| OW |
150 |
915 |
2208 |
1109 |
287 |
92 |
47 |
0 |
| VODI |
60 |
7 |
692 |
1704 |
944 |
403 |
440 |
4 |
| ODI |
15 |
0 |
30 |
799 |
1066 |
1339 |
1473 |
12 |
| CDI |
11 |
0 |
5 |
505 |
972 |
4239 |
11986 |
54 |
| VCDI |
0 |
0 |
0 |
287 |
243 |
1273 |
22974 |
17919 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
62620 |
17835 |
2446 |
325 |
43 |
5 |
7 |
0 |
| OW |
238 |
1024 |
1713 |
639 |
241 |
144 |
60 |
0 |
| VODI |
42 |
237 |
1238 |
1398 |
600 |
329 |
473 |
6 |
| ODI |
38 |
5 |
369 |
1018 |
899 |
685 |
1268 |
13 |
| CDI |
30 |
0 |
68 |
954 |
1438 |
4685 |
11438 |
278 |
| VCDI |
0 |
0 |
2 |
401 |
338 |
1504 |
23682 |
17692 |
|
Date: 2024-05-24:
| 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 |
63113 |
17480 |
3765 |
205 |
42 |
2 |
7 |
0 |
| OW |
173 |
470 |
2553 |
1129 |
192 |
51 |
45 |
2 |
| VODI |
32 |
1 |
782 |
1683 |
721 |
288 |
451 |
10 |
| ODI |
16 |
0 |
161 |
769 |
1061 |
1229 |
1297 |
21 |
| CDI |
6 |
0 |
68 |
705 |
1293 |
4093 |
11454 |
503 |
| VCDI |
0 |
0 |
10 |
269 |
345 |
1206 |
22662 |
18103 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
63056 |
16943 |
3187 |
259 |
52 |
39 |
22 |
0 |
| OW |
185 |
787 |
1980 |
556 |
130 |
55 |
90 |
2 |
| VODI |
40 |
210 |
1529 |
1283 |
370 |
98 |
456 |
11 |
| ODI |
34 |
11 |
486 |
1097 |
758 |
552 |
1431 |
20 |
| CDI |
25 |
0 |
142 |
1103 |
1757 |
4698 |
10509 |
306 |
| VCDI |
0 |
0 |
15 |
462 |
587 |
1427 |
23408 |
18300 |
|
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