Validation of sea ice concentration - Full domain
Bulletin date: 2023-07-27
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-07-21:
| 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 |
95885 |
22763 |
1312 |
1460 |
227 |
39 |
0 |
0 |
| OW |
0 |
971 |
791 |
2229 |
500 |
26 |
0 |
0 |
| VODI |
0 |
230 |
292 |
3631 |
3697 |
176 |
4 |
0 |
| ODI |
0 |
27 |
53 |
1612 |
13539 |
1767 |
21 |
0 |
| CDI |
0 |
10 |
11 |
162 |
7508 |
20454 |
344 |
0 |
| VCDI |
0 |
4 |
0 |
0 |
63 |
6145 |
1095 |
0 |
|
...date precedes bulletin
|
Date: 2023-07-23:
| 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 |
96657 |
22768 |
1496 |
1871 |
210 |
29 |
5 |
0 |
| OW |
0 |
1000 |
723 |
2221 |
782 |
44 |
0 |
0 |
| VODI |
0 |
272 |
410 |
3750 |
4739 |
433 |
14 |
0 |
| ODI |
0 |
43 |
41 |
1355 |
11192 |
2566 |
63 |
0 |
| CDI |
0 |
12 |
26 |
175 |
3698 |
24653 |
424 |
0 |
| VCDI |
0 |
4 |
0 |
0 |
30 |
5073 |
269 |
0 |
|
...date precedes bulletin
|
Date: 2023-07-25:
| 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 |
97447 |
23365 |
1663 |
1797 |
193 |
35 |
1 |
0 |
| OW |
0 |
673 |
665 |
1544 |
345 |
49 |
0 |
0 |
| VODI |
0 |
213 |
429 |
4897 |
3085 |
132 |
12 |
0 |
| ODI |
0 |
26 |
47 |
1275 |
13570 |
2967 |
57 |
0 |
| CDI |
0 |
5 |
8 |
82 |
3268 |
25811 |
1080 |
0 |
| VCDI |
0 |
4 |
0 |
2 |
9 |
2159 |
133 |
0 |
|
...date precedes bulletin
|
Date: 2023-07-27:
| 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 |
99279 |
22621 |
1510 |
1681 |
229 |
28 |
0 |
0 |
| OW |
0 |
772 |
816 |
2049 |
427 |
50 |
1 |
0 |
| VODI |
0 |
236 |
396 |
5637 |
3387 |
167 |
14 |
0 |
| ODI |
0 |
22 |
45 |
1086 |
12889 |
2765 |
52 |
0 |
| CDI |
0 |
8 |
15 |
57 |
3294 |
20512 |
3262 |
0 |
| VCDI |
0 |
4 |
0 |
2 |
25 |
1741 |
1969 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
99279 |
22645 |
1567 |
1887 |
280 |
35 |
0 |
0 |
| OW |
0 |
734 |
708 |
1826 |
460 |
44 |
2 |
0 |
| VODI |
0 |
245 |
444 |
5508 |
3370 |
199 |
17 |
0 |
| ODI |
0 |
26 |
47 |
1228 |
12681 |
2583 |
42 |
0 |
| CDI |
0 |
9 |
16 |
61 |
3441 |
20774 |
3377 |
0 |
| VCDI |
0 |
4 |
0 |
2 |
19 |
1628 |
1860 |
0 |
|
Date: 2023-07-29:
| 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 |
98365 |
24571 |
1460 |
1467 |
213 |
43 |
3 |
0 |
| OW |
1 |
1119 |
925 |
2457 |
498 |
52 |
4 |
0 |
| VODI |
0 |
251 |
373 |
5343 |
4418 |
204 |
2 |
0 |
| ODI |
0 |
17 |
43 |
712 |
10664 |
4302 |
60 |
0 |
| CDI |
0 |
2 |
20 |
50 |
2416 |
17041 |
5398 |
0 |
| VCDI |
0 |
4 |
1 |
2 |
20 |
1795 |
2686 |
46 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
98365 |
24655 |
1542 |
1633 |
295 |
46 |
2 |
0 |
| OW |
1 |
991 |
767 |
2138 |
460 |
52 |
5 |
0 |
| VODI |
0 |
292 |
446 |
5432 |
4345 |
216 |
2 |
0 |
| ODI |
0 |
20 |
46 |
769 |
10456 |
4135 |
52 |
0 |
| CDI |
0 |
2 |
20 |
57 |
2654 |
17530 |
5433 |
1 |
| VCDI |
0 |
4 |
1 |
2 |
19 |
1458 |
2659 |
45 |
|
Date: 2023-07-31:
| 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 |
98390 |
26358 |
1408 |
1078 |
142 |
18 |
0 |
0 |
| OW |
0 |
857 |
710 |
1417 |
227 |
17 |
0 |
0 |
| VODI |
0 |
280 |
689 |
5990 |
1676 |
65 |
0 |
0 |
| ODI |
0 |
12 |
36 |
1710 |
12436 |
869 |
3 |
0 |
| CDI |
0 |
0 |
5 |
34 |
2796 |
15621 |
596 |
0 |
| VCDI |
0 |
5 |
0 |
2 |
10 |
3403 |
10007 |
181 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
98389 |
25988 |
1455 |
1630 |
237 |
23 |
0 |
0 |
| OW |
1 |
1191 |
859 |
2897 |
690 |
37 |
0 |
0 |
| VODI |
0 |
287 |
464 |
4905 |
4450 |
204 |
0 |
0 |
| ODI |
0 |
40 |
51 |
720 |
9034 |
4972 |
39 |
0 |
| CDI |
0 |
1 |
19 |
76 |
2795 |
13970 |
7390 |
0 |
| VCDI |
0 |
5 |
0 |
3 |
81 |
787 |
3177 |
181 |
|
Date: 2023-08-02:
| 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 |
99962 |
25691 |
1431 |
1545 |
199 |
1 |
0 |
0 |
| OW |
0 |
836 |
846 |
2016 |
342 |
12 |
0 |
0 |
| VODI |
0 |
218 |
466 |
5520 |
2795 |
139 |
0 |
0 |
| ODI |
0 |
15 |
27 |
1308 |
9879 |
1827 |
24 |
0 |
| CDI |
0 |
7 |
7 |
49 |
3393 |
13604 |
1928 |
0 |
| VCDI |
0 |
4 |
0 |
10 |
50 |
1998 |
8478 |
2421 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
99961 |
25145 |
1525 |
2254 |
327 |
4 |
0 |
0 |
| OW |
1 |
1297 |
826 |
3274 |
976 |
28 |
0 |
0 |
| VODI |
0 |
284 |
360 |
4039 |
4715 |
354 |
4 |
0 |
| ODI |
0 |
34 |
54 |
795 |
8002 |
5243 |
239 |
0 |
| CDI |
0 |
7 |
12 |
82 |
2565 |
11849 |
8668 |
453 |
| VCDI |
0 |
4 |
0 |
4 |
73 |
103 |
1519 |
1968 |
|
Date: 2023-08-04:
| 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 |
102269 |
24819 |
1161 |
1148 |
156 |
1 |
0 |
0 |
| OW |
0 |
1230 |
952 |
2148 |
314 |
23 |
1 |
0 |
| VODI |
0 |
248 |
476 |
5637 |
2875 |
87 |
2 |
0 |
| ODI |
0 |
18 |
36 |
1042 |
9147 |
1779 |
14 |
0 |
| CDI |
0 |
11 |
11 |
67 |
2939 |
14466 |
2081 |
0 |
| VCDI |
0 |
3 |
1 |
4 |
30 |
4083 |
6694 |
1075 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
102268 |
24366 |
1392 |
2282 |
323 |
28 |
0 |
0 |
| OW |
1 |
1528 |
817 |
3317 |
931 |
35 |
3 |
0 |
| VODI |
0 |
356 |
359 |
3704 |
4720 |
295 |
0 |
0 |
| ODI |
0 |
64 |
51 |
653 |
7121 |
6127 |
326 |
0 |
| CDI |
0 |
12 |
17 |
86 |
2350 |
13626 |
6553 |
30 |
| VCDI |
0 |
3 |
1 |
4 |
16 |
328 |
1910 |
1045 |
|
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