Validation of sea ice concentration - Full domain
Bulletin date: 2023-10-26
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-10-20:
| 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 |
99376 |
15643 |
775 |
843 |
547 |
12 |
0 |
0 |
| OW |
1545 |
1246 |
498 |
1109 |
1171 |
330 |
0 |
0 |
| VODI |
2478 |
340 |
227 |
940 |
1556 |
524 |
0 |
0 |
| ODI |
0 |
94 |
45 |
347 |
999 |
857 |
7 |
0 |
| CDI |
0 |
63 |
47 |
179 |
973 |
3448 |
614 |
0 |
| VCDI |
0 |
6 |
14 |
56 |
561 |
7710 |
25191 |
10439 |
|
...date precedes bulletin
|
Date: 2023-10-22:
| 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 |
98993 |
13996 |
448 |
809 |
345 |
6 |
0 |
0 |
| OW |
1446 |
1584 |
393 |
940 |
1096 |
182 |
0 |
0 |
| VODI |
2656 |
683 |
275 |
979 |
1810 |
558 |
0 |
0 |
| ODI |
0 |
207 |
144 |
596 |
1323 |
622 |
18 |
0 |
| CDI |
0 |
120 |
69 |
386 |
1244 |
2074 |
268 |
0 |
| VCDI |
0 |
3 |
6 |
50 |
731 |
8901 |
30709 |
6140 |
|
...date precedes bulletin
|
Date: 2023-10-24:
| 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 |
98476 |
13760 |
260 |
468 |
269 |
0 |
0 |
0 |
| OW |
1403 |
1597 |
463 |
806 |
458 |
61 |
0 |
0 |
| VODI |
2716 |
295 |
364 |
1154 |
1316 |
187 |
6 |
0 |
| ODI |
0 |
50 |
67 |
429 |
2028 |
1337 |
36 |
0 |
| CDI |
0 |
5 |
7 |
142 |
1695 |
4016 |
272 |
0 |
| VCDI |
0 |
0 |
2 |
17 |
417 |
9684 |
25378 |
11169 |
|
...date precedes bulletin
|
Date: 2023-10-26:
| 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 |
97336 |
12232 |
421 |
770 |
299 |
48 |
0 |
0 |
| OW |
1354 |
1442 |
459 |
846 |
511 |
244 |
6 |
0 |
| VODI |
2775 |
329 |
282 |
970 |
1044 |
664 |
25 |
0 |
| ODI |
0 |
56 |
53 |
517 |
1160 |
1227 |
114 |
0 |
| CDI |
0 |
13 |
16 |
187 |
1369 |
4370 |
852 |
0 |
| VCDI |
0 |
0 |
0 |
7 |
1004 |
9091 |
23835 |
14882 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
97332 |
12374 |
488 |
891 |
377 |
110 |
0 |
0 |
| OW |
1356 |
1297 |
380 |
744 |
431 |
207 |
6 |
0 |
| VODI |
2777 |
334 |
289 |
1018 |
1053 |
632 |
8 |
0 |
| ODI |
0 |
56 |
62 |
456 |
1059 |
1068 |
100 |
0 |
| CDI |
0 |
11 |
12 |
187 |
1464 |
4137 |
699 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
1003 |
9490 |
24019 |
14882 |
|
Date: 2023-10-28:
| 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 |
95164 |
11899 |
364 |
617 |
137 |
27 |
0 |
0 |
| OW |
1252 |
1251 |
455 |
1183 |
972 |
235 |
1 |
0 |
| VODI |
2956 |
219 |
192 |
948 |
1023 |
845 |
84 |
0 |
| ODI |
0 |
45 |
59 |
410 |
871 |
1395 |
195 |
0 |
| CDI |
0 |
14 |
13 |
131 |
760 |
3660 |
964 |
0 |
| VCDI |
0 |
0 |
1 |
25 |
378 |
9682 |
22622 |
19761 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
95227 |
12099 |
427 |
808 |
338 |
52 |
0 |
0 |
| OW |
1317 |
1007 |
400 |
1137 |
834 |
222 |
10 |
0 |
| VODI |
2828 |
266 |
179 |
837 |
1016 |
770 |
63 |
0 |
| ODI |
0 |
42 |
68 |
378 |
775 |
1293 |
152 |
0 |
| CDI |
0 |
14 |
9 |
129 |
831 |
3651 |
971 |
0 |
| VCDI |
0 |
0 |
1 |
25 |
347 |
9856 |
22670 |
19761 |
|
Date: 2023-10-30:
| 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 |
92403 |
13280 |
357 |
322 |
85 |
12 |
0 |
0 |
| OW |
1199 |
950 |
357 |
702 |
381 |
31 |
0 |
0 |
| VODI |
3025 |
156 |
271 |
1239 |
1136 |
122 |
0 |
0 |
| ODI |
0 |
12 |
28 |
374 |
1849 |
1125 |
11 |
0 |
| CDI |
0 |
0 |
0 |
44 |
1035 |
4247 |
408 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
121 |
7051 |
25962 |
22510 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
92391 |
12907 |
424 |
623 |
307 |
22 |
0 |
0 |
| OW |
1228 |
1166 |
337 |
954 |
924 |
276 |
1 |
0 |
| VODI |
3008 |
246 |
140 |
558 |
1319 |
1112 |
30 |
0 |
| ODI |
0 |
59 |
70 |
341 |
751 |
1232 |
124 |
0 |
| CDI |
0 |
19 |
42 |
185 |
770 |
2836 |
1058 |
12 |
| VCDI |
0 |
1 |
0 |
25 |
536 |
7110 |
25168 |
22498 |
|
Date: 2023-11-01:
| 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 |
91810 |
12511 |
324 |
359 |
110 |
27 |
0 |
0 |
| OW |
1173 |
1134 |
356 |
650 |
440 |
86 |
6 |
0 |
| VODI |
3065 |
234 |
216 |
712 |
945 |
389 |
5 |
0 |
| ODI |
0 |
29 |
49 |
374 |
1012 |
803 |
28 |
0 |
| CDI |
0 |
1 |
9 |
104 |
1137 |
2430 |
518 |
1 |
| VCDI |
0 |
0 |
0 |
2 |
405 |
6286 |
27351 |
25719 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
91779 |
11866 |
351 |
365 |
153 |
19 |
0 |
0 |
| OW |
1225 |
1545 |
325 |
805 |
789 |
248 |
10 |
0 |
| VODI |
3044 |
343 |
161 |
554 |
1231 |
1212 |
217 |
0 |
| ODI |
0 |
120 |
71 |
211 |
657 |
1069 |
361 |
0 |
| CDI |
0 |
34 |
42 |
233 |
569 |
2044 |
1155 |
35 |
| VCDI |
0 |
1 |
4 |
33 |
650 |
5429 |
26165 |
25685 |
|
Date: 2023-11-03:
| 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 |
91240 |
11984 |
402 |
416 |
69 |
26 |
2 |
0 |
| OW |
1164 |
1223 |
298 |
453 |
518 |
109 |
2 |
0 |
| VODI |
3092 |
313 |
201 |
521 |
889 |
460 |
21 |
0 |
| ODI |
0 |
67 |
84 |
367 |
890 |
659 |
95 |
0 |
| CDI |
0 |
5 |
29 |
219 |
1065 |
1325 |
399 |
5 |
| VCDI |
0 |
0 |
1 |
79 |
1092 |
6399 |
25454 |
29173 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
91193 |
11247 |
427 |
465 |
271 |
45 |
1 |
0 |
| OW |
1224 |
1591 |
240 |
447 |
595 |
214 |
8 |
0 |
| VODI |
3079 |
631 |
216 |
553 |
987 |
1008 |
142 |
0 |
| ODI |
0 |
115 |
93 |
285 |
837 |
886 |
345 |
0 |
| CDI |
0 |
6 |
36 |
225 |
977 |
1361 |
921 |
4 |
| VCDI |
0 |
2 |
3 |
80 |
856 |
5464 |
24556 |
29174 |
|
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