Validation of sea ice concentration - American sector
Bulletin date: 2024-08-01
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-07-26:
| 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 |
6427 |
6606 |
105 |
75 |
11 |
1 |
0 |
0 |
| OW |
0 |
1710 |
404 |
453 |
80 |
14 |
0 |
0 |
| VODI |
0 |
506 |
462 |
2492 |
837 |
33 |
0 |
0 |
| ODI |
0 |
61 |
25 |
809 |
5380 |
1462 |
2 |
0 |
| CDI |
0 |
118 |
11 |
79 |
2344 |
10060 |
2327 |
0 |
| VCDI |
0 |
11 |
11 |
78 |
590 |
1541 |
741 |
0 |
|
...date precedes bulletin
|
Date: 2024-07-28:
| 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 |
6801 |
6533 |
70 |
64 |
10 |
0 |
0 |
0 |
| OW |
0 |
2049 |
413 |
533 |
112 |
3 |
0 |
0 |
| VODI |
0 |
583 |
523 |
1922 |
837 |
109 |
6 |
0 |
| ODI |
3 |
96 |
37 |
765 |
4561 |
1492 |
135 |
0 |
| CDI |
0 |
114 |
26 |
82 |
2034 |
9804 |
3787 |
0 |
| VCDI |
0 |
55 |
23 |
150 |
462 |
1067 |
605 |
0 |
|
...date precedes bulletin
|
Date: 2024-07-30:
| 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 |
7004 |
7603 |
94 |
80 |
13 |
0 |
0 |
0 |
| OW |
2 |
1944 |
465 |
457 |
69 |
5 |
0 |
0 |
| VODI |
3 |
286 |
434 |
2290 |
750 |
40 |
0 |
0 |
| ODI |
0 |
90 |
20 |
386 |
4303 |
1518 |
0 |
0 |
| CDI |
0 |
54 |
22 |
103 |
1543 |
11058 |
1647 |
0 |
| VCDI |
0 |
11 |
17 |
88 |
421 |
1122 |
1924 |
0 |
|
...date precedes bulletin
|
Date: 2024-08-01:
| 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 |
7606 |
7435 |
103 |
68 |
3 |
0 |
0 |
0 |
| OW |
55 |
2051 |
411 |
467 |
74 |
1 |
0 |
0 |
| VODI |
39 |
567 |
453 |
2035 |
610 |
41 |
0 |
0 |
| ODI |
12 |
82 |
23 |
549 |
3640 |
949 |
114 |
0 |
| CDI |
0 |
110 |
27 |
113 |
2089 |
11564 |
1518 |
0 |
| VCDI |
0 |
122 |
40 |
162 |
282 |
2017 |
434 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7617 |
7374 |
102 |
84 |
3 |
0 |
0 |
0 |
| OW |
52 |
2078 |
404 |
450 |
76 |
2 |
0 |
0 |
| VODI |
31 |
593 |
463 |
1922 |
619 |
46 |
4 |
0 |
| ODI |
12 |
83 |
21 |
664 |
3373 |
998 |
124 |
0 |
| CDI |
0 |
118 |
28 |
120 |
2358 |
11406 |
1509 |
0 |
| VCDI |
0 |
121 |
39 |
154 |
269 |
2120 |
429 |
0 |
|
Date: 2024-08-03:
| 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 |
8579 |
6523 |
79 |
20 |
1 |
0 |
0 |
0 |
| OW |
49 |
2536 |
336 |
392 |
63 |
0 |
0 |
0 |
| VODI |
41 |
751 |
531 |
1955 |
463 |
25 |
0 |
0 |
| ODI |
15 |
99 |
44 |
675 |
4032 |
949 |
0 |
0 |
| CDI |
0 |
155 |
44 |
80 |
2630 |
10108 |
1706 |
0 |
| VCDI |
0 |
110 |
43 |
136 |
360 |
875 |
1461 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8556 |
6458 |
76 |
26 |
2 |
0 |
0 |
0 |
| OW |
85 |
2586 |
323 |
424 |
52 |
0 |
0 |
0 |
| VODI |
27 |
763 |
540 |
1830 |
501 |
48 |
0 |
0 |
| ODI |
16 |
99 |
52 |
720 |
3863 |
1011 |
0 |
0 |
| CDI |
0 |
161 |
47 |
135 |
2785 |
9968 |
1519 |
0 |
| VCDI |
0 |
107 |
39 |
123 |
346 |
930 |
1648 |
0 |
|
Date: 2024-08-05:
| 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 |
9654 |
6858 |
88 |
30 |
0 |
0 |
0 |
0 |
| OW |
136 |
2816 |
353 |
198 |
28 |
0 |
0 |
0 |
| VODI |
25 |
407 |
463 |
1856 |
394 |
0 |
0 |
0 |
| ODI |
1 |
81 |
34 |
383 |
6899 |
1658 |
1 |
0 |
| CDI |
0 |
139 |
56 |
150 |
789 |
9578 |
711 |
0 |
| VCDI |
0 |
3 |
2 |
30 |
113 |
1477 |
455 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9557 |
5753 |
42 |
15 |
0 |
0 |
0 |
0 |
| OW |
206 |
2924 |
253 |
280 |
33 |
0 |
0 |
0 |
| VODI |
39 |
1151 |
522 |
1309 |
535 |
56 |
0 |
0 |
| ODI |
14 |
158 |
88 |
766 |
3932 |
1380 |
8 |
0 |
| CDI |
0 |
192 |
45 |
149 |
3446 |
8407 |
930 |
0 |
| VCDI |
0 |
126 |
46 |
128 |
277 |
2870 |
229 |
0 |
|
Date: 2024-08-07:
| 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 |
10199 |
7199 |
65 |
34 |
3 |
0 |
0 |
0 |
| OW |
112 |
2351 |
293 |
185 |
57 |
4 |
0 |
0 |
| VODI |
19 |
520 |
556 |
1821 |
388 |
44 |
1 |
0 |
| ODI |
3 |
105 |
25 |
435 |
5783 |
2556 |
27 |
0 |
| CDI |
0 |
112 |
73 |
171 |
806 |
5602 |
3740 |
2 |
| VCDI |
0 |
76 |
15 |
88 |
331 |
787 |
1144 |
134 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9932 |
5756 |
47 |
30 |
1 |
0 |
0 |
0 |
| OW |
354 |
2902 |
250 |
288 |
48 |
10 |
0 |
0 |
| VODI |
30 |
1157 |
525 |
1153 |
415 |
92 |
20 |
0 |
| ODI |
13 |
170 |
101 |
910 |
3365 |
1649 |
84 |
0 |
| CDI |
4 |
208 |
23 |
147 |
3066 |
6086 |
3212 |
0 |
| VCDI |
0 |
170 |
81 |
206 |
473 |
1156 |
1596 |
136 |
|
Date: 2024-08-09:
| 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 |
12360 |
5864 |
58 |
35 |
0 |
0 |
0 |
0 |
| OW |
82 |
2039 |
212 |
135 |
36 |
9 |
0 |
0 |
| VODI |
24 |
934 |
503 |
1633 |
275 |
42 |
6 |
0 |
| ODI |
2 |
107 |
25 |
841 |
5405 |
1952 |
82 |
0 |
| CDI |
0 |
106 |
57 |
212 |
1216 |
5362 |
3451 |
211 |
| VCDI |
0 |
122 |
55 |
90 |
173 |
399 |
1110 |
641 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11710 |
4453 |
29 |
23 |
0 |
0 |
0 |
0 |
| OW |
691 |
2618 |
279 |
357 |
23 |
17 |
4 |
0 |
| VODI |
38 |
1439 |
375 |
977 |
425 |
77 |
21 |
0 |
| ODI |
29 |
258 |
96 |
1194 |
3083 |
985 |
120 |
0 |
| CDI |
0 |
217 |
39 |
183 |
3294 |
5767 |
3269 |
136 |
| VCDI |
0 |
187 |
92 |
212 |
280 |
918 |
1235 |
716 |
|
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