Validation of sea ice concentration - American sector
Bulletin date: 2024-08-15
Data source: OSI SAF N.H. multi-product 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 |
29251 |
3835 |
14 |
9 |
4 |
0 |
0 |
0 |
| OW |
411 |
1850 |
134 |
165 |
41 |
0 |
0 |
0 |
| VODI |
29 |
547 |
307 |
2421 |
181 |
12 |
0 |
0 |
| ODI |
1 |
75 |
20 |
571 |
6463 |
1267 |
60 |
0 |
| CDI |
0 |
100 |
29 |
380 |
1281 |
5967 |
2729 |
317 |
| VCDI |
0 |
160 |
25 |
140 |
239 |
442 |
989 |
765 |
|
...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 |
29862 |
3469 |
2 |
18 |
0 |
0 |
0 |
0 |
| OW |
233 |
1970 |
135 |
131 |
21 |
0 |
0 |
0 |
| VODI |
31 |
760 |
425 |
2320 |
151 |
12 |
0 |
0 |
| ODI |
0 |
98 |
21 |
1131 |
5530 |
693 |
14 |
0 |
| CDI |
1 |
160 |
42 |
365 |
2344 |
6024 |
2721 |
41 |
| VCDI |
0 |
182 |
15 |
74 |
247 |
581 |
1391 |
16 |
|
...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 |
30453 |
4008 |
20 |
1 |
0 |
0 |
0 |
0 |
| OW |
160 |
2210 |
501 |
195 |
0 |
0 |
0 |
0 |
| VODI |
36 |
298 |
197 |
3169 |
391 |
13 |
0 |
0 |
| ODI |
13 |
64 |
13 |
623 |
6087 |
580 |
1 |
0 |
| CDI |
34 |
51 |
9 |
201 |
1582 |
5774 |
941 |
0 |
| VCDI |
0 |
2 |
0 |
39 |
89 |
1760 |
1716 |
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 |
30886 |
3847 |
22 |
3 |
0 |
0 |
0 |
0 |
| OW |
60 |
2677 |
214 |
90 |
0 |
0 |
0 |
0 |
| VODI |
39 |
518 |
396 |
3624 |
241 |
6 |
0 |
0 |
| ODI |
0 |
79 |
9 |
732 |
5200 |
442 |
3 |
0 |
| CDI |
0 |
113 |
7 |
137 |
1699 |
6672 |
1457 |
0 |
| VCDI |
0 |
3 |
1 |
73 |
117 |
1170 |
694 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
30880 |
3879 |
23 |
6 |
0 |
0 |
0 |
0 |
| OW |
66 |
2661 |
242 |
95 |
0 |
0 |
0 |
0 |
| VODI |
37 |
490 |
363 |
3327 |
311 |
4 |
0 |
0 |
| ODI |
2 |
86 |
10 |
1032 |
5102 |
673 |
2 |
0 |
| CDI |
0 |
117 |
9 |
128 |
1724 |
6394 |
1350 |
0 |
| VCDI |
0 |
4 |
2 |
71 |
120 |
1219 |
802 |
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 |
31721 |
3185 |
13 |
6 |
0 |
0 |
0 |
0 |
| OW |
162 |
2627 |
131 |
118 |
0 |
0 |
0 |
0 |
| VODI |
57 |
704 |
420 |
3854 |
187 |
1 |
0 |
0 |
| ODI |
16 |
103 |
5 |
744 |
4821 |
641 |
0 |
0 |
| CDI |
37 |
83 |
22 |
114 |
1707 |
6123 |
2089 |
3 |
| VCDI |
0 |
0 |
0 |
55 |
183 |
857 |
442 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
31700 |
3244 |
12 |
6 |
0 |
0 |
0 |
0 |
| OW |
170 |
2636 |
161 |
146 |
0 |
0 |
0 |
0 |
| VODI |
64 |
634 |
391 |
3478 |
255 |
4 |
0 |
0 |
| ODI |
19 |
106 |
7 |
1095 |
4652 |
803 |
0 |
0 |
| CDI |
38 |
82 |
20 |
114 |
1794 |
5890 |
1938 |
3 |
| VCDI |
2 |
0 |
0 |
52 |
197 |
925 |
593 |
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 |
32058 |
4139 |
11 |
10 |
0 |
0 |
0 |
0 |
| OW |
95 |
2516 |
564 |
284 |
3 |
0 |
0 |
0 |
| VODI |
33 |
144 |
36 |
4444 |
158 |
0 |
0 |
0 |
| ODI |
11 |
37 |
1 |
150 |
5587 |
413 |
0 |
0 |
| CDI |
9 |
34 |
1 |
38 |
632 |
5187 |
76 |
0 |
| VCDI |
0 |
1 |
5 |
37 |
101 |
375 |
3827 |
214 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
31903 |
3201 |
5 |
11 |
2 |
0 |
0 |
0 |
| OW |
201 |
2521 |
160 |
247 |
13 |
3 |
0 |
0 |
| VODI |
50 |
937 |
434 |
3258 |
227 |
44 |
0 |
0 |
| ODI |
22 |
101 |
8 |
1318 |
4705 |
943 |
4 |
0 |
| CDI |
30 |
110 |
6 |
85 |
1344 |
4753 |
2497 |
18 |
| VCDI |
0 |
1 |
5 |
44 |
190 |
232 |
1402 |
196 |
|
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 |
32742 |
3476 |
1 |
1 |
0 |
0 |
0 |
0 |
| OW |
202 |
2703 |
330 |
126 |
0 |
0 |
0 |
0 |
| VODI |
29 |
385 |
285 |
4007 |
124 |
0 |
0 |
0 |
| ODI |
10 |
51 |
1 |
264 |
6208 |
440 |
0 |
0 |
| CDI |
4 |
29 |
3 |
59 |
1179 |
4145 |
138 |
0 |
| VCDI |
0 |
3 |
0 |
15 |
89 |
1676 |
2506 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
32545 |
2465 |
2 |
2 |
0 |
0 |
0 |
0 |
| OW |
319 |
2721 |
106 |
151 |
2 |
0 |
0 |
0 |
| VODI |
62 |
1255 |
487 |
2976 |
261 |
4 |
0 |
0 |
| ODI |
28 |
118 |
21 |
1202 |
5730 |
745 |
0 |
0 |
| CDI |
33 |
88 |
4 |
112 |
1459 |
4941 |
1838 |
0 |
| VCDI |
0 |
0 |
0 |
29 |
148 |
571 |
806 |
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 |
33317 |
3291 |
8 |
3 |
0 |
0 |
0 |
0 |
| OW |
295 |
2541 |
214 |
113 |
0 |
0 |
0 |
0 |
| VODI |
56 |
650 |
523 |
3305 |
141 |
0 |
0 |
0 |
| ODI |
24 |
66 |
1 |
401 |
6446 |
786 |
0 |
0 |
| CDI |
11 |
12 |
1 |
20 |
1033 |
4005 |
93 |
0 |
| VCDI |
0 |
44 |
0 |
16 |
72 |
1773 |
1970 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
33014 |
2098 |
1 |
2 |
0 |
0 |
0 |
0 |
| OW |
483 |
2699 |
142 |
162 |
18 |
0 |
0 |
0 |
| VODI |
98 |
1538 |
539 |
2533 |
329 |
18 |
0 |
0 |
| ODI |
73 |
173 |
64 |
994 |
5911 |
826 |
0 |
0 |
| CDI |
35 |
55 |
1 |
150 |
1311 |
5364 |
1247 |
0 |
| VCDI |
0 |
41 |
0 |
17 |
123 |
356 |
816 |
0 |
|
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