Validation of sea ice concentration - American sector
Bulletin date: 2024-08-22
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-08-16:
| 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 |
31690 |
3167 |
22 |
0 |
0 |
0 |
0 |
0 |
| OW |
117 |
2668 |
159 |
70 |
0 |
0 |
0 |
0 |
| VODI |
26 |
654 |
479 |
3697 |
166 |
3 |
0 |
0 |
| ODI |
1 |
88 |
12 |
877 |
5000 |
451 |
0 |
0 |
| CDI |
0 |
118 |
10 |
141 |
1587 |
6500 |
1795 |
0 |
| VCDI |
0 |
0 |
0 |
77 |
181 |
436 |
1039 |
0 |
|
...date precedes bulletin
|
Date: 2024-08-18:
| 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 |
31963 |
2981 |
12 |
3 |
0 |
0 |
0 |
0 |
| OW |
173 |
2617 |
122 |
119 |
0 |
0 |
0 |
0 |
| VODI |
57 |
915 |
463 |
3751 |
194 |
0 |
0 |
0 |
| ODI |
27 |
94 |
14 |
890 |
4706 |
842 |
0 |
0 |
| CDI |
36 |
93 |
11 |
111 |
1406 |
5982 |
1903 |
0 |
| VCDI |
1 |
0 |
0 |
43 |
235 |
493 |
974 |
0 |
|
...date precedes bulletin
|
Date: 2024-08-20:
| 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 |
32454 |
3712 |
14 |
0 |
0 |
0 |
0 |
0 |
| OW |
163 |
2596 |
488 |
222 |
0 |
0 |
0 |
0 |
| VODI |
34 |
201 |
196 |
4237 |
136 |
0 |
0 |
0 |
| ODI |
11 |
46 |
2 |
214 |
6015 |
371 |
0 |
0 |
| CDI |
7 |
16 |
6 |
63 |
1105 |
4378 |
36 |
0 |
| VCDI |
0 |
0 |
0 |
23 |
112 |
1307 |
2670 |
396 |
|
...date precedes bulletin
|
Date: 2024-08-22:
| 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 |
33179 |
3279 |
3 |
0 |
0 |
0 |
0 |
0 |
| OW |
298 |
2575 |
225 |
102 |
0 |
0 |
0 |
0 |
| VODI |
56 |
563 |
511 |
3483 |
120 |
0 |
0 |
0 |
| ODI |
29 |
57 |
8 |
316 |
6348 |
527 |
0 |
0 |
| CDI |
8 |
29 |
2 |
16 |
969 |
4465 |
59 |
0 |
| VCDI |
0 |
37 |
0 |
13 |
75 |
1980 |
1899 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
33163 |
3426 |
3 |
0 |
0 |
0 |
0 |
0 |
| OW |
304 |
2357 |
200 |
121 |
0 |
0 |
0 |
0 |
| VODI |
65 |
629 |
536 |
3468 |
213 |
0 |
0 |
0 |
| ODI |
29 |
61 |
8 |
311 |
6068 |
638 |
0 |
0 |
| CDI |
9 |
33 |
2 |
18 |
1159 |
4306 |
99 |
0 |
| VCDI |
0 |
34 |
0 |
12 |
72 |
2028 |
1859 |
0 |
|
Date: 2024-08-24:
| 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 |
33396 |
3253 |
4 |
8 |
0 |
0 |
0 |
0 |
| OW |
334 |
2469 |
184 |
176 |
7 |
0 |
0 |
0 |
| VODI |
58 |
803 |
592 |
3054 |
166 |
1 |
0 |
0 |
| ODI |
22 |
66 |
6 |
439 |
6703 |
889 |
0 |
0 |
| CDI |
10 |
16 |
2 |
13 |
991 |
3502 |
175 |
0 |
| VCDI |
0 |
36 |
0 |
11 |
59 |
1393 |
2393 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
33333 |
3276 |
5 |
8 |
0 |
0 |
0 |
0 |
| OW |
390 |
2365 |
166 |
178 |
9 |
0 |
0 |
0 |
| VODI |
61 |
881 |
610 |
3086 |
292 |
13 |
0 |
0 |
| ODI |
22 |
68 |
5 |
405 |
6492 |
921 |
0 |
0 |
| CDI |
14 |
24 |
2 |
15 |
1078 |
3469 |
209 |
0 |
| VCDI |
0 |
29 |
0 |
9 |
55 |
1382 |
2359 |
0 |
|
Date: 2024-08-26:
| 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 |
33613 |
4056 |
14 |
2 |
0 |
0 |
0 |
0 |
| OW |
237 |
2933 |
663 |
309 |
0 |
0 |
0 |
0 |
| VODI |
34 |
75 |
37 |
3023 |
146 |
0 |
0 |
0 |
| ODI |
13 |
7 |
5 |
133 |
6226 |
200 |
0 |
0 |
| CDI |
2 |
44 |
2 |
4 |
607 |
5206 |
81 |
0 |
| VCDI |
0 |
7 |
0 |
0 |
29 |
792 |
2731 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
33349 |
3093 |
13 |
2 |
0 |
0 |
0 |
0 |
| OW |
455 |
2633 |
117 |
133 |
0 |
0 |
0 |
0 |
| VODI |
55 |
1291 |
578 |
2668 |
338 |
16 |
0 |
0 |
| ODI |
31 |
53 |
6 |
657 |
5665 |
1775 |
6 |
0 |
| CDI |
9 |
44 |
7 |
11 |
966 |
3355 |
231 |
0 |
| VCDI |
0 |
8 |
0 |
0 |
39 |
1052 |
2575 |
0 |
|
Date: 2024-08-28:
| 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 |
33819 |
4200 |
13 |
6 |
0 |
0 |
0 |
0 |
| OW |
238 |
3172 |
414 |
230 |
0 |
0 |
0 |
0 |
| VODI |
38 |
156 |
284 |
2655 |
166 |
2 |
0 |
0 |
| ODI |
13 |
11 |
1 |
289 |
5740 |
330 |
0 |
0 |
| CDI |
2 |
29 |
0 |
10 |
844 |
4899 |
155 |
0 |
| VCDI |
0 |
24 |
0 |
6 |
50 |
678 |
2757 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
33485 |
3109 |
13 |
6 |
0 |
0 |
0 |
0 |
| OW |
534 |
2811 |
116 |
132 |
0 |
0 |
0 |
0 |
| VODI |
62 |
1579 |
572 |
2200 |
307 |
9 |
0 |
0 |
| ODI |
23 |
39 |
10 |
827 |
5522 |
1635 |
0 |
0 |
| CDI |
6 |
34 |
1 |
24 |
925 |
3169 |
610 |
0 |
| VCDI |
0 |
20 |
0 |
7 |
46 |
1096 |
2302 |
0 |
|
Date: 2024-08-30:
| 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 |
33929 |
4400 |
9 |
13 |
0 |
0 |
0 |
0 |
| OW |
313 |
3056 |
354 |
224 |
4 |
0 |
0 |
0 |
| VODI |
39 |
159 |
287 |
2603 |
175 |
2 |
0 |
0 |
| ODI |
5 |
6 |
3 |
288 |
6154 |
281 |
0 |
0 |
| CDI |
1 |
29 |
0 |
20 |
1170 |
3938 |
244 |
0 |
| VCDI |
0 |
23 |
0 |
3 |
65 |
1020 |
2407 |
7 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
33542 |
3177 |
9 |
17 |
0 |
0 |
0 |
0 |
| OW |
584 |
3075 |
191 |
196 |
4 |
0 |
0 |
0 |
| VODI |
136 |
1329 |
445 |
2096 |
430 |
22 |
0 |
0 |
| ODI |
23 |
39 |
8 |
808 |
6140 |
881 |
37 |
0 |
| CDI |
2 |
10 |
0 |
31 |
897 |
2852 |
333 |
1 |
| VCDI |
0 |
43 |
0 |
3 |
97 |
1486 |
2281 |
6 |
|
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