Validation of sea ice concentration - American sector
Bulletin date: 2024-08-15
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
|
...date precedes bulletin
|
Date: 2024-08-11:
| 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 |
13509 |
4996 |
26 |
15 |
0 |
0 |
0 |
0 |
| OW |
115 |
1981 |
172 |
119 |
16 |
0 |
0 |
0 |
| VODI |
51 |
867 |
586 |
1844 |
247 |
30 |
0 |
0 |
| ODI |
13 |
106 |
43 |
1390 |
4596 |
1212 |
38 |
0 |
| CDI |
0 |
165 |
61 |
282 |
2141 |
5715 |
3060 |
64 |
| VCDI |
0 |
144 |
29 |
66 |
168 |
553 |
1426 |
20 |
|
...date precedes bulletin
|
Date: 2024-08-13:
| 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 |
14752 |
4834 |
42 |
24 |
0 |
0 |
0 |
0 |
| OW |
112 |
2154 |
445 |
243 |
4 |
0 |
0 |
0 |
| VODI |
28 |
393 |
393 |
2651 |
537 |
2 |
0 |
0 |
| ODI |
0 |
72 |
23 |
930 |
5172 |
1090 |
14 |
0 |
| CDI |
0 |
71 |
32 |
112 |
1578 |
5202 |
1413 |
0 |
| VCDI |
0 |
7 |
4 |
16 |
69 |
1586 |
1861 |
0 |
|
...date precedes bulletin
|
Date: 2024-08-15:
| 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 |
14804 |
5051 |
36 |
27 |
0 |
0 |
0 |
0 |
| OW |
38 |
2448 |
297 |
167 |
0 |
0 |
0 |
0 |
| VODI |
31 |
636 |
575 |
3067 |
396 |
9 |
1 |
0 |
| ODI |
0 |
76 |
33 |
978 |
4542 |
729 |
47 |
0 |
| CDI |
0 |
58 |
28 |
94 |
1529 |
6552 |
1640 |
0 |
| VCDI |
0 |
11 |
13 |
30 |
91 |
1131 |
701 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14794 |
5084 |
38 |
31 |
0 |
0 |
0 |
0 |
| OW |
47 |
2424 |
320 |
183 |
0 |
0 |
0 |
0 |
| VODI |
31 |
611 |
559 |
2766 |
438 |
16 |
0 |
0 |
| ODI |
1 |
87 |
26 |
1263 |
4481 |
959 |
33 |
0 |
| CDI |
0 |
63 |
26 |
90 |
1548 |
6271 |
1543 |
0 |
| VCDI |
0 |
11 |
13 |
30 |
91 |
1175 |
813 |
0 |
|
Date: 2024-08-17:
| 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 |
15836 |
4223 |
14 |
0 |
0 |
0 |
0 |
0 |
| OW |
64 |
2521 |
215 |
139 |
6 |
0 |
0 |
0 |
| VODI |
23 |
826 |
658 |
3204 |
383 |
27 |
0 |
0 |
| ODI |
7 |
112 |
19 |
971 |
4163 |
979 |
24 |
0 |
| CDI |
0 |
106 |
29 |
49 |
1342 |
6132 |
2336 |
0 |
| VCDI |
0 |
11 |
8 |
22 |
120 |
752 |
545 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15830 |
4263 |
14 |
0 |
0 |
0 |
0 |
0 |
| OW |
71 |
2517 |
249 |
187 |
4 |
0 |
0 |
0 |
| VODI |
21 |
785 |
625 |
2818 |
426 |
41 |
0 |
0 |
| ODI |
8 |
119 |
19 |
1304 |
3975 |
1182 |
23 |
0 |
| CDI |
0 |
106 |
28 |
54 |
1481 |
5827 |
2214 |
0 |
| VCDI |
0 |
9 |
8 |
22 |
128 |
840 |
668 |
0 |
|
Date: 2024-08-19:
| 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 |
15857 |
5437 |
31 |
16 |
0 |
0 |
0 |
0 |
| OW |
59 |
2507 |
515 |
268 |
9 |
0 |
0 |
0 |
| VODI |
18 |
270 |
336 |
3704 |
368 |
17 |
0 |
0 |
| ODI |
0 |
43 |
16 |
377 |
4752 |
956 |
10 |
0 |
| CDI |
0 |
29 |
3 |
24 |
568 |
4968 |
263 |
0 |
| VCDI |
0 |
15 |
1 |
12 |
40 |
343 |
4034 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15823 |
4433 |
2 |
4 |
2 |
0 |
0 |
0 |
| OW |
73 |
2508 |
244 |
206 |
15 |
8 |
4 |
0 |
| VODI |
24 |
1114 |
572 |
2748 |
294 |
79 |
18 |
0 |
| ODI |
14 |
114 |
66 |
1347 |
4217 |
1269 |
20 |
0 |
| CDI |
0 |
115 |
16 |
81 |
1111 |
4731 |
2635 |
0 |
| VCDI |
0 |
17 |
2 |
15 |
98 |
197 |
1630 |
0 |
|
Date: 2024-08-21:
| 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 |
17089 |
4238 |
11 |
0 |
0 |
0 |
0 |
0 |
| OW |
77 |
2690 |
350 |
137 |
0 |
0 |
0 |
0 |
| VODI |
26 |
455 |
582 |
3370 |
295 |
1 |
0 |
0 |
| ODI |
14 |
47 |
19 |
507 |
5268 |
1055 |
0 |
0 |
| CDI |
9 |
30 |
2 |
37 |
992 |
4098 |
238 |
0 |
| VCDI |
0 |
1 |
1 |
12 |
56 |
1416 |
2743 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16938 |
3219 |
2 |
1 |
0 |
0 |
0 |
0 |
| OW |
209 |
2647 |
206 |
126 |
5 |
1 |
0 |
0 |
| VODI |
21 |
1327 |
632 |
2588 |
329 |
47 |
0 |
0 |
| ODI |
29 |
161 |
112 |
1228 |
4928 |
1325 |
0 |
0 |
| CDI |
18 |
100 |
11 |
103 |
1250 |
4603 |
2219 |
0 |
| VCDI |
0 |
7 |
2 |
17 |
99 |
594 |
762 |
0 |
|
Date: 2024-08-23:
| 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 |
17771 |
3945 |
18 |
3 |
0 |
0 |
0 |
0 |
| OW |
153 |
2506 |
300 |
89 |
0 |
0 |
0 |
0 |
| VODI |
47 |
679 |
824 |
2747 |
260 |
8 |
0 |
0 |
| ODI |
20 |
35 |
27 |
738 |
5436 |
1413 |
1 |
0 |
| CDI |
4 |
5 |
1 |
21 |
907 |
3878 |
255 |
0 |
| VCDI |
0 |
26 |
3 |
11 |
39 |
1661 |
2035 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17631 |
2630 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
217 |
2829 |
213 |
118 |
20 |
6 |
0 |
0 |
| VODI |
67 |
1485 |
788 |
2198 |
268 |
127 |
0 |
0 |
| ODI |
60 |
190 |
144 |
1130 |
5157 |
1268 |
18 |
0 |
| CDI |
20 |
37 |
25 |
145 |
1127 |
5127 |
1567 |
0 |
| VCDI |
0 |
25 |
3 |
18 |
70 |
432 |
706 |
0 |
|
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