Validation of sea ice concentration - Full domain
Bulletin date: 2023-09-07
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-09-01:
| 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 |
104701 |
8279 |
16787 |
97 |
0 |
0 |
0 |
0 |
| OW |
2644 |
2397 |
3804 |
389 |
7 |
0 |
0 |
0 |
| VODI |
1162 |
500 |
3440 |
2409 |
869 |
7 |
0 |
0 |
| ODI |
0 |
31 |
1989 |
1811 |
6534 |
1444 |
0 |
0 |
| CDI |
0 |
0 |
2878 |
2211 |
4276 |
6948 |
190 |
0 |
| VCDI |
0 |
0 |
3666 |
687 |
71 |
471 |
111 |
0 |
|
...date precedes bulletin
|
Date: 2023-09-03:
| 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 |
112581 |
17267 |
180 |
101 |
6 |
0 |
0 |
0 |
| OW |
2751 |
5349 |
688 |
488 |
15 |
0 |
0 |
0 |
| VODI |
994 |
1255 |
1124 |
3848 |
1036 |
21 |
0 |
0 |
| ODI |
0 |
65 |
103 |
2050 |
7928 |
1683 |
15 |
0 |
| CDI |
0 |
3 |
0 |
65 |
4857 |
11298 |
737 |
0 |
| VCDI |
0 |
3 |
0 |
0 |
4 |
3095 |
1200 |
0 |
|
...date precedes bulletin
|
Date: 2023-09-05:
| 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 |
115824 |
17249 |
173 |
70 |
0 |
0 |
0 |
0 |
| OW |
2785 |
3829 |
937 |
509 |
16 |
0 |
0 |
0 |
| VODI |
947 |
422 |
741 |
3216 |
924 |
23 |
0 |
0 |
| ODI |
0 |
21 |
37 |
1545 |
8969 |
1132 |
0 |
0 |
| CDI |
0 |
4 |
1 |
100 |
3131 |
14125 |
580 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
2578 |
922 |
0 |
|
...date precedes bulletin
|
Date: 2023-09-07:
| 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 |
116355 |
16489 |
223 |
203 |
7 |
0 |
0 |
0 |
| OW |
2733 |
3907 |
715 |
481 |
24 |
0 |
0 |
0 |
| VODI |
1071 |
760 |
726 |
3092 |
910 |
20 |
0 |
0 |
| ODI |
0 |
68 |
141 |
1836 |
7399 |
2513 |
8 |
0 |
| CDI |
0 |
1 |
5 |
206 |
3914 |
12940 |
450 |
0 |
| VCDI |
0 |
2 |
0 |
0 |
111 |
3120 |
380 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
116369 |
15055 |
201 |
141 |
8 |
0 |
0 |
0 |
| OW |
2947 |
4462 |
568 |
513 |
57 |
3 |
0 |
0 |
| VODI |
843 |
1497 |
856 |
3195 |
1119 |
14 |
0 |
0 |
| ODI |
0 |
198 |
143 |
1609 |
6787 |
2574 |
37 |
0 |
| CDI |
0 |
12 |
42 |
357 |
4369 |
13176 |
470 |
0 |
| VCDI |
0 |
3 |
0 |
3 |
25 |
2826 |
331 |
0 |
|
Date: 2023-09-09:
| 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 |
119284 |
13624 |
114 |
52 |
0 |
0 |
0 |
0 |
| OW |
2806 |
4078 |
573 |
458 |
12 |
0 |
0 |
0 |
| VODI |
1106 |
1057 |
738 |
2996 |
962 |
16 |
0 |
0 |
| ODI |
0 |
101 |
181 |
2312 |
7426 |
1486 |
0 |
0 |
| CDI |
0 |
3 |
4 |
292 |
3449 |
11929 |
531 |
0 |
| VCDI |
0 |
0 |
1 |
1 |
51 |
4517 |
650 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
119055 |
12413 |
115 |
61 |
3 |
0 |
0 |
0 |
| OW |
3161 |
4479 |
493 |
478 |
15 |
0 |
0 |
0 |
| VODI |
980 |
1715 |
800 |
3209 |
1013 |
23 |
0 |
0 |
| ODI |
0 |
218 |
159 |
2076 |
6802 |
2024 |
11 |
0 |
| CDI |
0 |
38 |
43 |
286 |
4017 |
11810 |
559 |
0 |
| VCDI |
0 |
0 |
1 |
1 |
50 |
4091 |
611 |
0 |
|
Date: 2023-09-11:
| 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 |
119082 |
15671 |
195 |
84 |
0 |
0 |
0 |
0 |
| OW |
2880 |
3585 |
686 |
460 |
5 |
0 |
0 |
0 |
| VODI |
831 |
384 |
654 |
3914 |
880 |
14 |
0 |
0 |
| ODI |
0 |
4 |
13 |
1270 |
9751 |
751 |
0 |
0 |
| CDI |
0 |
0 |
1 |
14 |
1490 |
12665 |
105 |
0 |
| VCDI |
0 |
0 |
1 |
4 |
1 |
4444 |
971 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
118659 |
12940 |
149 |
69 |
0 |
0 |
0 |
0 |
| OW |
3253 |
4515 |
446 |
543 |
35 |
0 |
0 |
0 |
| VODI |
881 |
1824 |
723 |
2857 |
1251 |
166 |
4 |
0 |
| ODI |
0 |
338 |
187 |
1965 |
6839 |
1874 |
79 |
0 |
| CDI |
0 |
27 |
44 |
308 |
3918 |
9761 |
347 |
0 |
| VCDI |
0 |
0 |
1 |
4 |
84 |
6073 |
646 |
0 |
|
Date: 2023-09-13:
| 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 |
119427 |
15529 |
182 |
163 |
26 |
0 |
0 |
0 |
| OW |
2961 |
3441 |
618 |
499 |
38 |
0 |
0 |
0 |
| VODI |
713 |
570 |
619 |
3288 |
1263 |
98 |
0 |
0 |
| ODI |
0 |
6 |
27 |
1130 |
8844 |
1865 |
22 |
0 |
| CDI |
0 |
0 |
0 |
48 |
1524 |
10037 |
1458 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
20 |
5245 |
1145 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
119042 |
12489 |
161 |
173 |
15 |
0 |
0 |
0 |
| OW |
3179 |
4587 |
408 |
498 |
118 |
33 |
0 |
0 |
| VODI |
880 |
2099 |
631 |
2770 |
1096 |
157 |
3 |
0 |
| ODI |
0 |
344 |
218 |
1499 |
6779 |
2307 |
207 |
0 |
| CDI |
0 |
27 |
28 |
187 |
3666 |
8414 |
1960 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
41 |
6334 |
455 |
0 |
|
Date: 2023-09-15:
| 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 |
119798 |
15197 |
156 |
164 |
22 |
0 |
0 |
0 |
| OW |
2946 |
3465 |
596 |
443 |
99 |
10 |
0 |
0 |
| VODI |
740 |
638 |
644 |
2964 |
1334 |
96 |
3 |
0 |
| ODI |
0 |
20 |
52 |
1101 |
8183 |
2449 |
19 |
0 |
| CDI |
0 |
0 |
0 |
157 |
1862 |
9199 |
1216 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
7 |
5192 |
2038 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
119429 |
12250 |
195 |
167 |
14 |
0 |
0 |
0 |
| OW |
3146 |
4345 |
403 |
600 |
194 |
52 |
3 |
0 |
| VODI |
909 |
2312 |
595 |
2282 |
1295 |
98 |
2 |
0 |
| ODI |
0 |
335 |
211 |
1382 |
5794 |
2893 |
134 |
0 |
| CDI |
0 |
78 |
44 |
398 |
4138 |
7288 |
2210 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
72 |
6615 |
927 |
0 |
|
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