Validation of sea ice concentration - American sector
Bulletin date: 2020-08-27
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2020-08-21:
| 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 |
17497 |
5382 |
56 |
150 |
0 |
0 |
0 |
0 |
| OW |
159 |
1845 |
55 |
304 |
11 |
0 |
0 |
0 |
| VODI |
1 |
655 |
88 |
2655 |
1066 |
3 |
0 |
0 |
| ODI |
0 |
0 |
0 |
298 |
2366 |
395 |
0 |
0 |
| CDI |
0 |
0 |
0 |
51 |
891 |
4646 |
1374 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
8 |
2283 |
3626 |
1 |
|
...date precedes bulletin
|
Date: 2020-08-23:
| 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 |
19244 |
4050 |
23 |
84 |
3 |
0 |
0 |
0 |
| OW |
376 |
2011 |
50 |
227 |
28 |
0 |
0 |
0 |
| VODI |
0 |
862 |
124 |
2243 |
927 |
87 |
0 |
0 |
| ODI |
0 |
0 |
0 |
383 |
2004 |
292 |
1 |
0 |
| CDI |
0 |
0 |
0 |
33 |
773 |
5701 |
519 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
6 |
4980 |
835 |
0 |
|
...date precedes bulletin
|
Date: 2020-08-25:
| 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 |
19199 |
6350 |
66 |
91 |
0 |
0 |
0 |
0 |
| OW |
9 |
1168 |
105 |
508 |
3 |
0 |
0 |
0 |
| VODI |
0 |
156 |
43 |
1730 |
624 |
0 |
0 |
0 |
| ODI |
0 |
1 |
0 |
255 |
2714 |
177 |
0 |
0 |
| CDI |
0 |
0 |
0 |
12 |
433 |
3972 |
2087 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
366 |
4814 |
983 |
|
...date precedes bulletin
|
Date: 2020-08-27:
| 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 |
18748 |
6817 |
82 |
205 |
19 |
0 |
0 |
0 |
| OW |
2 |
1068 |
100 |
645 |
177 |
0 |
0 |
0 |
| VODI |
0 |
84 |
43 |
1189 |
924 |
131 |
0 |
0 |
| ODI |
0 |
1 |
2 |
206 |
1904 |
661 |
1 |
0 |
| CDI |
0 |
0 |
0 |
13 |
565 |
3860 |
1842 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
12 |
4509 |
2056 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18749 |
7231 |
89 |
304 |
45 |
0 |
0 |
0 |
| OW |
1 |
671 |
101 |
595 |
217 |
0 |
0 |
0 |
| VODI |
0 |
67 |
35 |
1170 |
921 |
133 |
0 |
0 |
| ODI |
0 |
1 |
2 |
175 |
1848 |
678 |
1 |
0 |
| CDI |
0 |
0 |
0 |
14 |
562 |
3740 |
1954 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
8 |
4610 |
1944 |
0 |
|
Date: 2020-08-29:
| 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 |
19251 |
6545 |
72 |
249 |
3 |
0 |
0 |
0 |
| OW |
0 |
1150 |
99 |
623 |
108 |
0 |
0 |
0 |
| VODI |
0 |
80 |
48 |
1109 |
896 |
56 |
0 |
0 |
| ODI |
0 |
5 |
1 |
244 |
1258 |
935 |
13 |
0 |
| CDI |
0 |
1 |
0 |
27 |
651 |
4432 |
1405 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
10 |
4534 |
2061 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
19251 |
6962 |
84 |
315 |
8 |
0 |
0 |
0 |
| OW |
0 |
736 |
92 |
663 |
135 |
0 |
0 |
0 |
| VODI |
0 |
77 |
43 |
1037 |
907 |
65 |
0 |
0 |
| ODI |
0 |
5 |
1 |
211 |
1238 |
944 |
8 |
0 |
| CDI |
0 |
1 |
0 |
25 |
626 |
4422 |
1424 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
12 |
4526 |
2047 |
0 |
|
Date: 2020-08-31:
| 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 |
20106 |
6282 |
63 |
159 |
2 |
0 |
0 |
0 |
| OW |
0 |
908 |
93 |
429 |
10 |
0 |
0 |
0 |
| VODI |
0 |
156 |
60 |
1407 |
275 |
0 |
0 |
0 |
| ODI |
0 |
0 |
2 |
174 |
2380 |
73 |
0 |
0 |
| CDI |
0 |
0 |
0 |
14 |
584 |
3683 |
314 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
1189 |
7139 |
364 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20106 |
6219 |
63 |
235 |
3 |
0 |
0 |
0 |
| OW |
0 |
862 |
77 |
609 |
86 |
0 |
0 |
0 |
| VODI |
0 |
263 |
75 |
971 |
761 |
4 |
0 |
0 |
| ODI |
0 |
2 |
2 |
303 |
1516 |
436 |
4 |
0 |
| CDI |
0 |
0 |
1 |
62 |
879 |
3422 |
2243 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
6 |
1083 |
5206 |
364 |
|
Date: 2020-09-02:
| 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 |
19862 |
6716 |
52 |
131 |
4 |
0 |
0 |
0 |
| OW |
0 |
985 |
91 |
443 |
28 |
0 |
0 |
0 |
| VODI |
0 |
237 |
62 |
1145 |
297 |
0 |
0 |
0 |
| ODI |
0 |
0 |
1 |
376 |
1800 |
155 |
0 |
0 |
| CDI |
0 |
0 |
0 |
46 |
715 |
3271 |
492 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
1189 |
6452 |
1316 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
19862 |
6458 |
48 |
218 |
25 |
0 |
0 |
0 |
| OW |
0 |
1007 |
74 |
397 |
85 |
0 |
0 |
0 |
| VODI |
0 |
458 |
70 |
929 |
656 |
50 |
0 |
0 |
| ODI |
0 |
14 |
13 |
441 |
1234 |
418 |
4 |
0 |
| CDI |
0 |
1 |
1 |
154 |
840 |
3472 |
1748 |
22 |
| VCDI |
0 |
0 |
0 |
2 |
4 |
675 |
5192 |
1294 |
|
Date: 2020-09-04:
| 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 |
20551 |
6014 |
39 |
123 |
5 |
0 |
0 |
0 |
| OW |
0 |
1182 |
73 |
367 |
50 |
0 |
0 |
0 |
| VODI |
0 |
276 |
75 |
949 |
359 |
0 |
0 |
0 |
| ODI |
0 |
13 |
9 |
436 |
1383 |
257 |
0 |
0 |
| CDI |
0 |
1 |
0 |
71 |
732 |
2474 |
1100 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
19 |
784 |
5826 |
2698 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20551 |
5776 |
37 |
196 |
39 |
0 |
0 |
0 |
| OW |
0 |
1128 |
60 |
303 |
103 |
0 |
0 |
0 |
| VODI |
0 |
534 |
78 |
824 |
597 |
83 |
0 |
0 |
| ODI |
0 |
46 |
20 |
441 |
955 |
438 |
92 |
0 |
| CDI |
0 |
2 |
1 |
181 |
833 |
2445 |
2553 |
251 |
| VCDI |
0 |
0 |
0 |
1 |
21 |
549 |
4281 |
2447 |
|
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