Validation of sea ice concentration - Full domain
Bulletin date: 2023-08-31
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-08-25:
| 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 |
115498 |
25482 |
1394 |
1344 |
123 |
0 |
0 |
0 |
| OW |
3 |
1048 |
900 |
1444 |
125 |
3 |
0 |
0 |
| VODI |
0 |
224 |
405 |
3104 |
1148 |
56 |
1 |
0 |
| ODI |
0 |
31 |
42 |
1466 |
5405 |
1035 |
5 |
0 |
| CDI |
0 |
3 |
10 |
152 |
3564 |
12572 |
1394 |
0 |
| VCDI |
0 |
4 |
0 |
0 |
5 |
4782 |
4276 |
0 |
|
...date precedes bulletin
|
Date: 2023-08-27:
| 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 |
116748 |
24995 |
1230 |
1086 |
125 |
5 |
0 |
0 |
| OW |
0 |
1262 |
851 |
1340 |
150 |
9 |
0 |
0 |
| VODI |
0 |
267 |
368 |
2916 |
1219 |
70 |
2 |
0 |
| ODI |
0 |
31 |
76 |
1557 |
5034 |
943 |
9 |
0 |
| CDI |
0 |
7 |
18 |
155 |
5459 |
10961 |
1725 |
0 |
| VCDI |
0 |
4 |
0 |
1 |
322 |
5723 |
2380 |
0 |
|
...date precedes bulletin
|
Date: 2023-08-29:
| 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 |
118279 |
25203 |
1330 |
877 |
65 |
0 |
0 |
0 |
| OW |
0 |
693 |
765 |
947 |
66 |
1 |
0 |
0 |
| VODI |
0 |
135 |
397 |
3468 |
773 |
13 |
0 |
0 |
| ODI |
0 |
6 |
30 |
1384 |
7703 |
1113 |
12 |
0 |
| CDI |
0 |
6 |
7 |
120 |
4745 |
11418 |
472 |
0 |
| VCDI |
0 |
1 |
0 |
0 |
16 |
4131 |
2872 |
0 |
|
...date precedes bulletin
|
Date: 2023-08-31:
| 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 |
97050 |
24237 |
23874 |
738 |
76 |
0 |
0 |
0 |
| OW |
0 |
492 |
1519 |
531 |
113 |
0 |
0 |
0 |
| VODI |
0 |
160 |
2065 |
1763 |
599 |
9 |
0 |
0 |
| ODI |
0 |
12 |
2702 |
1717 |
5063 |
338 |
0 |
0 |
| CDI |
0 |
1 |
3967 |
1198 |
5393 |
5844 |
520 |
0 |
| VCDI |
0 |
0 |
3608 |
1586 |
657 |
883 |
333 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
97050 |
24308 |
24161 |
786 |
93 |
0 |
0 |
0 |
| OW |
0 |
437 |
1202 |
496 |
105 |
0 |
0 |
0 |
| VODI |
0 |
144 |
2071 |
1630 |
583 |
8 |
0 |
0 |
| ODI |
0 |
13 |
2817 |
2070 |
4916 |
323 |
0 |
0 |
| CDI |
0 |
0 |
3996 |
1007 |
5536 |
5803 |
512 |
0 |
| VCDI |
0 |
0 |
3488 |
1544 |
668 |
940 |
341 |
0 |
|
Date: 2023-09-02:
| 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 |
118285 |
26223 |
772 |
544 |
59 |
0 |
0 |
0 |
| OW |
0 |
1397 |
669 |
837 |
112 |
1 |
0 |
0 |
| VODI |
0 |
309 |
529 |
2946 |
763 |
13 |
0 |
0 |
| ODI |
0 |
34 |
77 |
2118 |
6561 |
692 |
0 |
0 |
| CDI |
0 |
7 |
9 |
133 |
6298 |
10258 |
393 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
275 |
4641 |
2093 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
118285 |
26601 |
914 |
762 |
81 |
0 |
0 |
0 |
| OW |
0 |
969 |
565 |
753 |
98 |
1 |
0 |
0 |
| VODI |
0 |
348 |
482 |
2750 |
785 |
8 |
0 |
0 |
| ODI |
0 |
45 |
87 |
2156 |
6571 |
771 |
3 |
0 |
| CDI |
0 |
7 |
8 |
157 |
6227 |
10200 |
416 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
306 |
4625 |
2067 |
0 |
|
Date: 2023-09-04:
| 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 |
122941 |
23150 |
916 |
598 |
54 |
0 |
0 |
0 |
| OW |
0 |
658 |
598 |
720 |
60 |
0 |
0 |
0 |
| VODI |
0 |
169 |
365 |
2686 |
937 |
9 |
0 |
0 |
| ODI |
0 |
8 |
32 |
1416 |
8342 |
842 |
2 |
0 |
| CDI |
0 |
5 |
2 |
72 |
3965 |
12685 |
415 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
9 |
4324 |
1068 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
122941 |
22113 |
794 |
683 |
115 |
0 |
0 |
0 |
| OW |
0 |
1344 |
445 |
589 |
211 |
3 |
0 |
0 |
| VODI |
0 |
461 |
559 |
2064 |
1135 |
68 |
0 |
0 |
| ODI |
0 |
65 |
103 |
1940 |
5731 |
1310 |
17 |
0 |
| CDI |
0 |
7 |
12 |
215 |
5840 |
10830 |
451 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
335 |
5649 |
1017 |
0 |
|
Date: 2023-09-06:
| 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 |
122411 |
24063 |
865 |
605 |
39 |
0 |
0 |
0 |
| OW |
0 |
676 |
574 |
764 |
71 |
0 |
0 |
0 |
| VODI |
0 |
177 |
378 |
2389 |
910 |
6 |
0 |
0 |
| ODI |
0 |
14 |
46 |
1648 |
7120 |
1331 |
0 |
0 |
| CDI |
0 |
4 |
2 |
116 |
3843 |
11297 |
1104 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
36 |
5208 |
1350 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
122411 |
22773 |
687 |
646 |
77 |
0 |
0 |
0 |
| OW |
0 |
1433 |
415 |
623 |
110 |
0 |
0 |
0 |
| VODI |
0 |
641 |
604 |
2034 |
816 |
15 |
0 |
0 |
| ODI |
0 |
76 |
145 |
1860 |
5807 |
882 |
0 |
0 |
| CDI |
0 |
11 |
14 |
359 |
5020 |
10880 |
863 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
189 |
6065 |
1591 |
0 |
|
Date: 2023-09-08:
| 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 |
124413 |
22065 |
688 |
603 |
19 |
0 |
0 |
0 |
| OW |
0 |
1110 |
476 |
751 |
56 |
0 |
0 |
0 |
| VODI |
0 |
297 |
433 |
2424 |
733 |
8 |
0 |
0 |
| ODI |
0 |
41 |
108 |
2251 |
5974 |
1347 |
0 |
0 |
| CDI |
0 |
0 |
4 |
380 |
4096 |
10680 |
452 |
0 |
| VCDI |
0 |
2 |
1 |
4 |
64 |
7144 |
424 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
124413 |
20624 |
618 |
753 |
44 |
0 |
0 |
0 |
| OW |
0 |
1723 |
290 |
478 |
108 |
0 |
0 |
0 |
| VODI |
0 |
1031 |
565 |
2044 |
608 |
13 |
0 |
0 |
| ODI |
0 |
112 |
204 |
2462 |
4773 |
851 |
0 |
0 |
| CDI |
0 |
25 |
32 |
672 |
5233 |
9997 |
394 |
0 |
| VCDI |
0 |
0 |
1 |
4 |
176 |
8318 |
482 |
0 |
|
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