Validation of sea ice concentration - Full domain
Bulletin date: 2023-05-18
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-05-12:
| 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 |
70812 |
14962 |
627 |
937 |
171 |
39 |
0 |
0 |
| OW |
64 |
130 |
144 |
675 |
239 |
23 |
1 |
0 |
| VODI |
0 |
61 |
60 |
625 |
710 |
85 |
0 |
0 |
| ODI |
0 |
21 |
19 |
277 |
1045 |
532 |
35 |
0 |
| CDI |
0 |
47 |
31 |
250 |
1979 |
2751 |
1197 |
21 |
| VCDI |
0 |
10 |
33 |
249 |
969 |
8107 |
32658 |
46452 |
|
...date precedes bulletin
|
Date: 2023-05-14:
| 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 |
70165 |
15262 |
716 |
1227 |
182 |
63 |
9 |
0 |
| OW |
59 |
124 |
121 |
714 |
312 |
30 |
2 |
0 |
| VODI |
0 |
53 |
47 |
558 |
981 |
137 |
4 |
0 |
| ODI |
0 |
19 |
6 |
274 |
1066 |
450 |
155 |
0 |
| CDI |
0 |
17 |
15 |
264 |
1991 |
2735 |
1277 |
6 |
| VCDI |
0 |
39 |
68 |
474 |
3670 |
10979 |
30223 |
42554 |
|
...date precedes bulletin
|
Date: 2023-05-16:
| 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 |
70411 |
15696 |
765 |
1096 |
156 |
49 |
2 |
0 |
| OW |
58 |
71 |
139 |
937 |
192 |
16 |
7 |
0 |
| VODI |
0 |
74 |
50 |
805 |
975 |
75 |
10 |
0 |
| ODI |
0 |
15 |
20 |
381 |
1331 |
403 |
71 |
0 |
| CDI |
0 |
1 |
7 |
246 |
1922 |
3779 |
1069 |
26 |
| VCDI |
0 |
0 |
0 |
37 |
692 |
8140 |
36603 |
40721 |
|
...date precedes bulletin
|
Date: 2023-05-18:
| 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 |
70707 |
15421 |
810 |
1315 |
226 |
53 |
0 |
0 |
| OW |
62 |
113 |
95 |
843 |
404 |
33 |
0 |
0 |
| VODI |
0 |
94 |
70 |
697 |
1050 |
134 |
11 |
0 |
| ODI |
0 |
28 |
31 |
366 |
1217 |
483 |
47 |
0 |
| CDI |
0 |
18 |
12 |
204 |
1774 |
4217 |
1241 |
5 |
| VCDI |
0 |
4 |
2 |
84 |
930 |
10017 |
30561 |
43669 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
70707 |
15400 |
801 |
1413 |
271 |
57 |
0 |
0 |
| OW |
62 |
120 |
96 |
749 |
429 |
34 |
0 |
0 |
| VODI |
0 |
103 |
74 |
682 |
1008 |
117 |
11 |
0 |
| ODI |
0 |
30 |
34 |
356 |
1183 |
469 |
55 |
0 |
| CDI |
0 |
22 |
13 |
235 |
1713 |
3910 |
1129 |
6 |
| VCDI |
0 |
3 |
2 |
74 |
997 |
10350 |
30665 |
43668 |
|
Date: 2023-05-20:
| 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 |
70614 |
15537 |
831 |
1290 |
356 |
42 |
18 |
0 |
| OW |
62 |
175 |
128 |
903 |
543 |
49 |
7 |
0 |
| VODI |
0 |
115 |
97 |
789 |
1012 |
180 |
19 |
0 |
| ODI |
0 |
35 |
55 |
424 |
1197 |
539 |
119 |
0 |
| CDI |
0 |
14 |
19 |
304 |
2129 |
3607 |
1566 |
0 |
| VCDI |
0 |
5 |
1 |
121 |
1505 |
10364 |
40315 |
31962 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
70614 |
15575 |
848 |
1452 |
499 |
49 |
22 |
0 |
| OW |
62 |
120 |
104 |
760 |
443 |
52 |
3 |
0 |
| VODI |
0 |
119 |
95 |
743 |
1009 |
171 |
20 |
0 |
| ODI |
0 |
46 |
53 |
442 |
1180 |
439 |
133 |
0 |
| CDI |
0 |
16 |
30 |
289 |
1967 |
3457 |
1456 |
0 |
| VCDI |
0 |
5 |
1 |
145 |
1644 |
10613 |
40410 |
31962 |
|
Date: 2023-05-22:
| 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 |
71310 |
15373 |
933 |
1295 |
322 |
41 |
0 |
0 |
| OW |
57 |
80 |
197 |
1274 |
383 |
27 |
0 |
0 |
| VODI |
0 |
13 |
27 |
1154 |
1177 |
78 |
2 |
0 |
| ODI |
0 |
3 |
0 |
312 |
2341 |
331 |
35 |
0 |
| CDI |
0 |
8 |
1 |
217 |
2470 |
5603 |
506 |
1 |
| VCDI |
0 |
0 |
0 |
4 |
990 |
8063 |
42121 |
30299 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
71310 |
15071 |
810 |
1676 |
679 |
81 |
0 |
0 |
| OW |
57 |
211 |
136 |
753 |
491 |
72 |
9 |
0 |
| VODI |
0 |
132 |
127 |
669 |
1004 |
182 |
30 |
0 |
| ODI |
0 |
38 |
60 |
506 |
1111 |
596 |
106 |
0 |
| CDI |
0 |
19 |
24 |
460 |
2162 |
3050 |
1760 |
3 |
| VCDI |
0 |
6 |
1 |
192 |
2236 |
10162 |
40759 |
30297 |
|
Date: 2023-05-24:
| 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 |
71534 |
15586 |
1018 |
1760 |
460 |
9 |
0 |
0 |
| OW |
54 |
109 |
116 |
1390 |
375 |
22 |
0 |
0 |
| VODI |
0 |
65 |
47 |
955 |
1213 |
98 |
3 |
0 |
| ODI |
0 |
26 |
17 |
412 |
1947 |
356 |
39 |
0 |
| CDI |
0 |
12 |
19 |
438 |
2582 |
4792 |
1035 |
3 |
| VCDI |
0 |
8 |
3 |
162 |
849 |
7171 |
33225 |
39138 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
71533 |
15091 |
793 |
1895 |
805 |
50 |
0 |
0 |
| OW |
55 |
306 |
114 |
720 |
575 |
51 |
6 |
0 |
| VODI |
0 |
232 |
150 |
820 |
943 |
226 |
40 |
0 |
| ODI |
0 |
92 |
93 |
529 |
1019 |
741 |
161 |
0 |
| CDI |
0 |
80 |
44 |
666 |
2191 |
2635 |
1729 |
81 |
| VCDI |
0 |
5 |
26 |
487 |
1893 |
8745 |
32366 |
39060 |
|
Date: 2023-05-26:
| 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 |
72052 |
15285 |
972 |
2168 |
447 |
14 |
0 |
0 |
| OW |
59 |
196 |
143 |
1172 |
479 |
52 |
0 |
0 |
| VODI |
0 |
138 |
56 |
825 |
1301 |
149 |
12 |
0 |
| ODI |
0 |
109 |
40 |
400 |
1726 |
632 |
91 |
0 |
| CDI |
0 |
84 |
62 |
549 |
2763 |
4598 |
1463 |
3 |
| VCDI |
0 |
33 |
40 |
312 |
1337 |
11567 |
33169 |
32550 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
72051 |
14654 |
816 |
2012 |
870 |
95 |
1 |
0 |
| OW |
60 |
354 |
116 |
773 |
584 |
137 |
19 |
0 |
| VODI |
0 |
335 |
109 |
789 |
876 |
373 |
74 |
0 |
| ODI |
0 |
194 |
92 |
479 |
1119 |
769 |
289 |
0 |
| CDI |
0 |
211 |
85 |
714 |
2356 |
3056 |
1519 |
13 |
| VCDI |
0 |
97 |
95 |
659 |
2248 |
12582 |
32833 |
32540 |
|
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