Validation of sea ice concentration - American sector
Bulletin date: 2024-05-09
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-05-03:
| 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 |
7045 |
1385 |
15 |
23 |
4 |
0 |
0 |
0 |
| OW |
41 |
922 |
65 |
131 |
52 |
0 |
3 |
0 |
| VODI |
0 |
137 |
112 |
387 |
199 |
27 |
23 |
0 |
| ODI |
0 |
13 |
14 |
213 |
446 |
112 |
33 |
0 |
| CDI |
0 |
36 |
18 |
199 |
1446 |
1161 |
361 |
6 |
| VCDI |
0 |
10 |
16 |
200 |
1102 |
3370 |
13792 |
28112 |
|
...date precedes bulletin
|
Date: 2024-05-05:
| 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 |
7011 |
1406 |
6 |
37 |
3 |
0 |
0 |
0 |
| OW |
0 |
978 |
101 |
197 |
43 |
0 |
0 |
0 |
| VODI |
0 |
189 |
115 |
415 |
216 |
38 |
3 |
0 |
| ODI |
0 |
64 |
60 |
252 |
441 |
119 |
31 |
0 |
| CDI |
0 |
127 |
41 |
403 |
1238 |
1209 |
396 |
0 |
| VCDI |
0 |
64 |
32 |
311 |
1417 |
4334 |
15515 |
24419 |
|
...date precedes bulletin
|
Date: 2024-05-07:
| 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 |
6909 |
1879 |
30 |
92 |
8 |
0 |
0 |
0 |
| OW |
0 |
665 |
142 |
245 |
43 |
2 |
0 |
0 |
| VODI |
0 |
84 |
101 |
829 |
346 |
28 |
4 |
0 |
| ODI |
0 |
46 |
19 |
253 |
970 |
129 |
25 |
0 |
| CDI |
0 |
30 |
27 |
275 |
1034 |
1469 |
552 |
0 |
| VCDI |
0 |
0 |
0 |
104 |
841 |
3146 |
14432 |
26472 |
|
...date precedes bulletin
|
Date: 2024-05-09:
| 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 |
6884 |
1954 |
17 |
53 |
10 |
0 |
0 |
0 |
| OW |
0 |
591 |
86 |
309 |
132 |
4 |
0 |
0 |
| VODI |
0 |
107 |
80 |
516 |
708 |
47 |
1 |
0 |
| ODI |
0 |
42 |
27 |
165 |
905 |
313 |
9 |
0 |
| CDI |
0 |
27 |
25 |
312 |
1194 |
1270 |
540 |
4 |
| VCDI |
0 |
0 |
0 |
196 |
1028 |
3964 |
15488 |
24223 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6884 |
1959 |
17 |
112 |
27 |
0 |
0 |
0 |
| OW |
0 |
572 |
96 |
288 |
145 |
5 |
0 |
0 |
| VODI |
0 |
118 |
74 |
472 |
652 |
45 |
0 |
0 |
| ODI |
0 |
45 |
22 |
153 |
907 |
342 |
9 |
0 |
| CDI |
0 |
27 |
26 |
321 |
1192 |
1239 |
614 |
7 |
| VCDI |
0 |
0 |
0 |
205 |
1054 |
3967 |
15415 |
24220 |
|
Date: 2024-05-11:
| 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 |
6968 |
1853 |
8 |
31 |
3 |
0 |
0 |
0 |
| OW |
0 |
780 |
100 |
182 |
42 |
1 |
0 |
0 |
| VODI |
0 |
242 |
166 |
748 |
304 |
20 |
3 |
0 |
| ODI |
0 |
87 |
18 |
290 |
1012 |
111 |
41 |
1 |
| CDI |
0 |
49 |
44 |
408 |
1412 |
1782 |
887 |
11 |
| VCDI |
0 |
0 |
3 |
138 |
952 |
3429 |
14375 |
24730 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6968 |
1887 |
17 |
42 |
9 |
0 |
0 |
0 |
| OW |
0 |
738 |
106 |
207 |
42 |
1 |
0 |
0 |
| VODI |
0 |
252 |
151 |
686 |
289 |
24 |
6 |
0 |
| ODI |
0 |
84 |
20 |
304 |
1041 |
158 |
58 |
2 |
| CDI |
0 |
50 |
42 |
418 |
1392 |
1827 |
1029 |
55 |
| VCDI |
0 |
0 |
3 |
140 |
952 |
3333 |
14213 |
24685 |
|
Date: 2024-05-13:
| 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 |
6965 |
2095 |
19 |
13 |
1 |
0 |
0 |
0 |
| OW |
0 |
1125 |
278 |
229 |
27 |
1 |
0 |
0 |
| VODI |
0 |
67 |
63 |
1262 |
248 |
15 |
0 |
0 |
| ODI |
0 |
35 |
26 |
525 |
1335 |
120 |
1 |
0 |
| CDI |
0 |
0 |
0 |
277 |
1752 |
2077 |
204 |
1 |
| VCDI |
0 |
0 |
0 |
47 |
368 |
2382 |
15042 |
24631 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6965 |
1807 |
8 |
16 |
0 |
0 |
0 |
0 |
| OW |
0 |
901 |
107 |
189 |
33 |
1 |
0 |
0 |
| VODI |
0 |
416 |
171 |
688 |
232 |
19 |
7 |
0 |
| ODI |
0 |
113 |
46 |
560 |
825 |
158 |
62 |
0 |
| CDI |
0 |
81 |
40 |
600 |
1778 |
1517 |
758 |
35 |
| VCDI |
0 |
4 |
14 |
300 |
863 |
2900 |
14420 |
24597 |
|
Date: 2024-05-15:
| 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 |
7658 |
1764 |
13 |
32 |
13 |
0 |
0 |
0 |
| OW |
1 |
1261 |
92 |
173 |
62 |
0 |
0 |
0 |
| VODI |
0 |
244 |
202 |
973 |
333 |
10 |
1 |
0 |
| ODI |
0 |
38 |
28 |
458 |
984 |
80 |
7 |
0 |
| CDI |
0 |
23 |
29 |
537 |
1434 |
1389 |
321 |
3 |
| VCDI |
0 |
0 |
0 |
30 |
692 |
2544 |
14165 |
25637 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7658 |
1309 |
7 |
18 |
0 |
0 |
0 |
0 |
| OW |
1 |
1052 |
48 |
87 |
25 |
0 |
0 |
0 |
| VODI |
0 |
637 |
165 |
580 |
239 |
5 |
3 |
2 |
| ODI |
0 |
141 |
52 |
679 |
825 |
96 |
17 |
6 |
| CDI |
0 |
152 |
69 |
497 |
1428 |
1123 |
483 |
87 |
| VCDI |
0 |
39 |
23 |
342 |
1001 |
2799 |
13991 |
25545 |
|
Date: 2024-05-17:
| 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 |
8266 |
1393 |
15 |
27 |
8 |
0 |
0 |
0 |
| OW |
0 |
1182 |
78 |
149 |
57 |
0 |
0 |
0 |
| VODI |
0 |
495 |
215 |
1027 |
261 |
17 |
5 |
0 |
| ODI |
0 |
56 |
43 |
641 |
750 |
170 |
17 |
0 |
| CDI |
0 |
70 |
63 |
573 |
1175 |
1230 |
392 |
9 |
| VCDI |
0 |
0 |
0 |
39 |
755 |
3239 |
15697 |
23117 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8193 |
690 |
8 |
21 |
7 |
0 |
0 |
0 |
| OW |
73 |
1133 |
30 |
59 |
29 |
7 |
1 |
0 |
| VODI |
0 |
817 |
158 |
694 |
207 |
74 |
16 |
0 |
| ODI |
0 |
262 |
95 |
828 |
559 |
208 |
52 |
1 |
| CDI |
0 |
210 |
61 |
391 |
1178 |
1070 |
912 |
167 |
| VCDI |
0 |
84 |
62 |
463 |
1026 |
3297 |
15130 |
22958 |
|
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