Validation of sea ice concentration - American sector
Bulletin date: 2024-08-22
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-08-16:
| 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 |
15414 |
4584 |
35 |
2 |
0 |
0 |
0 |
0 |
| OW |
53 |
2511 |
222 |
132 |
0 |
0 |
0 |
0 |
| VODI |
24 |
709 |
622 |
3138 |
411 |
18 |
0 |
0 |
| ODI |
4 |
91 |
34 |
1064 |
4273 |
879 |
34 |
0 |
| CDI |
0 |
72 |
27 |
97 |
1243 |
6399 |
2128 |
0 |
| VCDI |
0 |
18 |
8 |
30 |
134 |
367 |
1089 |
0 |
|
...date precedes bulletin
|
Date: 2024-08-18:
| 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 |
15794 |
4298 |
11 |
0 |
0 |
0 |
0 |
0 |
| OW |
64 |
2479 |
236 |
156 |
9 |
0 |
0 |
0 |
| VODI |
27 |
1009 |
638 |
3195 |
367 |
37 |
5 |
0 |
| ODI |
14 |
100 |
31 |
1123 |
4037 |
1170 |
35 |
0 |
| CDI |
22 |
111 |
14 |
40 |
1230 |
5710 |
2250 |
0 |
| VCDI |
0 |
6 |
5 |
17 |
162 |
654 |
810 |
0 |
|
...date precedes bulletin
|
Date: 2024-08-20:
| 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 |
15619 |
5634 |
35 |
15 |
0 |
0 |
0 |
0 |
| OW |
72 |
2574 |
450 |
259 |
0 |
0 |
0 |
0 |
| VODI |
26 |
358 |
487 |
3538 |
297 |
5 |
0 |
0 |
| ODI |
9 |
44 |
9 |
432 |
4974 |
1126 |
11 |
0 |
| CDI |
12 |
26 |
3 |
22 |
935 |
4218 |
245 |
0 |
| VCDI |
0 |
6 |
4 |
11 |
73 |
1401 |
2566 |
370 |
|
...date precedes bulletin
|
Date: 2024-08-22:
| 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 |
18050 |
3501 |
34 |
0 |
0 |
0 |
0 |
0 |
| OW |
118 |
2564 |
318 |
83 |
0 |
0 |
0 |
0 |
| VODI |
31 |
671 |
801 |
2886 |
238 |
0 |
0 |
0 |
| ODI |
18 |
44 |
32 |
612 |
5625 |
892 |
0 |
0 |
| CDI |
6 |
9 |
1 |
27 |
861 |
4314 |
215 |
0 |
| VCDI |
0 |
22 |
1 |
10 |
49 |
1571 |
2262 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18039 |
3641 |
32 |
1 |
0 |
0 |
0 |
0 |
| OW |
129 |
2364 |
288 |
88 |
0 |
0 |
0 |
0 |
| VODI |
31 |
725 |
823 |
2932 |
298 |
1 |
0 |
0 |
| ODI |
17 |
50 |
40 |
551 |
5413 |
977 |
0 |
0 |
| CDI |
7 |
12 |
3 |
37 |
1016 |
4191 |
251 |
0 |
| VCDI |
0 |
19 |
1 |
9 |
46 |
1608 |
2226 |
0 |
|
Date: 2024-08-24:
| 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 |
17826 |
3931 |
24 |
1 |
0 |
0 |
0 |
0 |
| OW |
208 |
2400 |
277 |
149 |
11 |
0 |
0 |
0 |
| VODI |
53 |
866 |
786 |
2601 |
230 |
34 |
0 |
0 |
| ODI |
18 |
46 |
19 |
893 |
5663 |
1370 |
65 |
0 |
| CDI |
4 |
9 |
0 |
20 |
845 |
3373 |
338 |
0 |
| VCDI |
0 |
21 |
1 |
11 |
39 |
1387 |
2347 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17817 |
3911 |
22 |
0 |
0 |
0 |
0 |
0 |
| OW |
211 |
2341 |
265 |
142 |
12 |
0 |
0 |
0 |
| VODI |
56 |
938 |
799 |
2679 |
322 |
53 |
1 |
0 |
| ODI |
19 |
53 |
19 |
813 |
5485 |
1412 |
64 |
0 |
| CDI |
6 |
14 |
1 |
32 |
935 |
3337 |
357 |
0 |
| VCDI |
0 |
16 |
1 |
9 |
34 |
1362 |
2328 |
0 |
|
Date: 2024-08-26:
| 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 |
17436 |
5294 |
45 |
13 |
0 |
0 |
0 |
0 |
| OW |
215 |
2706 |
731 |
319 |
0 |
0 |
0 |
0 |
| VODI |
19 |
157 |
326 |
2478 |
260 |
2 |
0 |
0 |
| ODI |
9 |
1 |
3 |
630 |
5044 |
866 |
0 |
0 |
| CDI |
0 |
28 |
1 |
18 |
587 |
4899 |
295 |
0 |
| VCDI |
0 |
2 |
0 |
4 |
18 |
642 |
2818 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17199 |
4333 |
37 |
12 |
0 |
0 |
0 |
0 |
| OW |
405 |
2512 |
216 |
87 |
0 |
0 |
0 |
0 |
| VODI |
51 |
1263 |
825 |
2287 |
359 |
43 |
1 |
0 |
| ODI |
20 |
50 |
25 |
1030 |
4710 |
2250 |
46 |
0 |
| CDI |
4 |
27 |
3 |
41 |
813 |
3243 |
369 |
0 |
| VCDI |
0 |
3 |
0 |
5 |
27 |
873 |
2697 |
0 |
|
Date: 2024-08-28:
| 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 |
18839 |
4276 |
19 |
3 |
0 |
0 |
0 |
0 |
| OW |
196 |
2835 |
613 |
241 |
0 |
0 |
0 |
0 |
| VODI |
23 |
253 |
522 |
2220 |
205 |
6 |
0 |
0 |
| ODI |
7 |
3 |
5 |
698 |
4854 |
776 |
4 |
0 |
| CDI |
0 |
15 |
2 |
23 |
738 |
4472 |
597 |
0 |
| VCDI |
0 |
13 |
0 |
15 |
23 |
509 |
2861 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18571 |
3146 |
11 |
3 |
0 |
0 |
0 |
0 |
| OW |
440 |
2678 |
228 |
113 |
0 |
0 |
0 |
0 |
| VODI |
36 |
1495 |
858 |
1893 |
303 |
29 |
0 |
0 |
| ODI |
16 |
47 |
59 |
1102 |
4705 |
2052 |
26 |
0 |
| CDI |
2 |
19 |
5 |
74 |
791 |
2802 |
974 |
0 |
| VCDI |
0 |
10 |
0 |
15 |
21 |
880 |
2462 |
0 |
|
Date: 2024-08-30:
| 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 |
18331 |
5067 |
29 |
10 |
0 |
0 |
0 |
0 |
| OW |
165 |
2941 |
450 |
223 |
2 |
0 |
0 |
0 |
| VODI |
21 |
304 |
464 |
2200 |
193 |
16 |
0 |
0 |
| ODI |
1 |
5 |
11 |
921 |
5059 |
698 |
12 |
0 |
| CDI |
0 |
17 |
4 |
42 |
984 |
3897 |
364 |
0 |
| VCDI |
0 |
12 |
1 |
13 |
39 |
697 |
2673 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17999 |
3827 |
23 |
11 |
0 |
0 |
0 |
0 |
| OW |
466 |
3027 |
255 |
166 |
1 |
0 |
0 |
0 |
| VODI |
44 |
1417 |
600 |
1858 |
375 |
61 |
1 |
0 |
| ODI |
9 |
45 |
72 |
1286 |
5030 |
1353 |
77 |
0 |
| CDI |
0 |
5 |
7 |
69 |
798 |
2748 |
407 |
0 |
| VCDI |
0 |
25 |
2 |
19 |
73 |
1146 |
2564 |
0 |
|
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