Validation of sea ice concentration - American sector
Bulletin date: 2021-08-05
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2021-07-30:
| 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 |
9875 |
5624 |
56 |
358 |
40 |
0 |
0 |
0 |
| OW |
1 |
377 |
44 |
350 |
109 |
0 |
0 |
0 |
| VODI |
0 |
176 |
37 |
829 |
638 |
1 |
0 |
0 |
| ODI |
0 |
10 |
3 |
187 |
3709 |
1770 |
1 |
0 |
| CDI |
0 |
0 |
0 |
16 |
1255 |
7395 |
1342 |
0 |
| VCDI |
0 |
0 |
0 |
44 |
371 |
4158 |
5627 |
1463 |
|
...date precedes bulletin
|
Date: 2021-08-01:
| 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 |
10329 |
5406 |
51 |
333 |
37 |
0 |
0 |
0 |
| OW |
0 |
434 |
54 |
465 |
127 |
0 |
0 |
0 |
| VODI |
0 |
234 |
37 |
919 |
556 |
1 |
0 |
0 |
| ODI |
0 |
6 |
5 |
181 |
4902 |
906 |
0 |
0 |
| CDI |
0 |
17 |
5 |
58 |
1198 |
7612 |
1752 |
0 |
| VCDI |
0 |
1 |
0 |
9 |
381 |
3013 |
5941 |
896 |
|
...date precedes bulletin
|
Date: 2021-08-03:
| 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 |
10281 |
6047 |
95 |
337 |
74 |
0 |
0 |
0 |
| OW |
0 |
289 |
57 |
451 |
116 |
0 |
0 |
0 |
| VODI |
0 |
46 |
25 |
733 |
683 |
29 |
0 |
0 |
| ODI |
0 |
3 |
2 |
47 |
2868 |
2857 |
0 |
0 |
| CDI |
0 |
16 |
5 |
48 |
878 |
7879 |
749 |
3 |
| VCDI |
0 |
0 |
1 |
12 |
401 |
3634 |
6894 |
306 |
|
...date precedes bulletin
|
Date: 2021-08-05:
| 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 |
11040 |
5795 |
78 |
296 |
5 |
0 |
0 |
0 |
| OW |
0 |
430 |
47 |
569 |
29 |
0 |
0 |
0 |
| VODI |
0 |
45 |
27 |
714 |
637 |
17 |
0 |
0 |
| ODI |
0 |
9 |
1 |
112 |
4532 |
1214 |
0 |
0 |
| CDI |
0 |
27 |
2 |
3 |
857 |
7509 |
620 |
122 |
| VCDI |
0 |
13 |
6 |
57 |
346 |
3611 |
5900 |
1196 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11040 |
5849 |
93 |
399 |
9 |
0 |
0 |
0 |
| OW |
0 |
365 |
40 |
533 |
28 |
0 |
0 |
0 |
| VODI |
0 |
56 |
19 |
639 |
777 |
23 |
0 |
0 |
| ODI |
0 |
3 |
1 |
115 |
4250 |
1182 |
0 |
0 |
| CDI |
0 |
24 |
1 |
8 |
973 |
7237 |
589 |
194 |
| VCDI |
0 |
22 |
7 |
57 |
369 |
3909 |
5931 |
1124 |
|
Date: 2021-08-07:
| 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 |
11145 |
5644 |
90 |
391 |
4 |
0 |
0 |
0 |
| OW |
0 |
424 |
41 |
534 |
70 |
0 |
0 |
0 |
| VODI |
0 |
121 |
25 |
541 |
990 |
21 |
0 |
0 |
| ODI |
0 |
7 |
3 |
124 |
4433 |
1281 |
0 |
0 |
| CDI |
0 |
41 |
5 |
5 |
1332 |
6944 |
541 |
0 |
| VCDI |
0 |
5 |
3 |
24 |
410 |
4704 |
5280 |
683 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11145 |
5729 |
98 |
523 |
18 |
0 |
0 |
0 |
| OW |
0 |
355 |
32 |
427 |
76 |
0 |
0 |
0 |
| VODI |
0 |
104 |
29 |
521 |
1219 |
31 |
0 |
0 |
| ODI |
0 |
3 |
0 |
114 |
4105 |
1116 |
0 |
0 |
| CDI |
0 |
40 |
5 |
10 |
1392 |
6817 |
664 |
0 |
| VCDI |
0 |
11 |
3 |
24 |
429 |
4986 |
5157 |
683 |
|
Date: 2021-08-09:
| 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 |
11360 |
5741 |
100 |
299 |
2 |
0 |
0 |
0 |
| OW |
0 |
261 |
37 |
413 |
12 |
0 |
0 |
0 |
| VODI |
0 |
32 |
26 |
878 |
287 |
0 |
0 |
0 |
| ODI |
0 |
14 |
0 |
66 |
6345 |
342 |
0 |
0 |
| CDI |
0 |
19 |
5 |
9 |
1059 |
8317 |
530 |
0 |
| VCDI |
0 |
9 |
7 |
80 |
240 |
2204 |
6275 |
897 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11360 |
5629 |
109 |
527 |
42 |
0 |
0 |
0 |
| OW |
0 |
280 |
24 |
441 |
94 |
0 |
0 |
0 |
| VODI |
0 |
109 |
30 |
600 |
1488 |
7 |
0 |
0 |
| ODI |
0 |
6 |
0 |
69 |
4287 |
601 |
0 |
0 |
| CDI |
0 |
16 |
0 |
20 |
1673 |
7005 |
876 |
0 |
| VCDI |
0 |
36 |
12 |
88 |
361 |
3250 |
5929 |
897 |
|
Date: 2021-08-11:
| 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 |
10986 |
6106 |
118 |
409 |
16 |
0 |
0 |
0 |
| OW |
0 |
169 |
37 |
477 |
60 |
0 |
0 |
0 |
| VODI |
0 |
28 |
13 |
765 |
785 |
0 |
0 |
0 |
| ODI |
0 |
16 |
0 |
122 |
5830 |
438 |
0 |
0 |
| CDI |
0 |
16 |
2 |
9 |
1291 |
7638 |
2030 |
0 |
| VCDI |
0 |
21 |
6 |
95 |
238 |
1721 |
5919 |
505 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10986 |
5966 |
122 |
588 |
105 |
0 |
0 |
0 |
| OW |
0 |
224 |
23 |
422 |
179 |
0 |
0 |
0 |
| VODI |
0 |
93 |
23 |
632 |
1826 |
0 |
0 |
0 |
| ODI |
0 |
11 |
0 |
112 |
3998 |
591 |
3 |
0 |
| CDI |
0 |
26 |
2 |
27 |
1803 |
6730 |
2695 |
126 |
| VCDI |
0 |
36 |
6 |
96 |
309 |
2476 |
5251 |
379 |
|
Date: 2021-08-13:
| 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 |
11520 |
5649 |
96 |
348 |
99 |
0 |
0 |
0 |
| OW |
0 |
238 |
44 |
491 |
131 |
0 |
0 |
0 |
| VODI |
0 |
40 |
14 |
709 |
1267 |
11 |
0 |
0 |
| ODI |
0 |
17 |
0 |
129 |
5358 |
629 |
0 |
0 |
| CDI |
0 |
16 |
1 |
12 |
914 |
8469 |
1854 |
0 |
| VCDI |
0 |
41 |
8 |
96 |
184 |
3875 |
3381 |
225 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11520 |
5537 |
99 |
548 |
229 |
0 |
0 |
0 |
| OW |
0 |
269 |
26 |
377 |
387 |
0 |
0 |
0 |
| VODI |
0 |
101 |
26 |
619 |
1946 |
14 |
0 |
0 |
| ODI |
0 |
19 |
3 |
120 |
3793 |
566 |
15 |
0 |
| CDI |
0 |
18 |
0 |
20 |
1367 |
8204 |
3366 |
225 |
| VCDI |
0 |
57 |
9 |
101 |
231 |
4200 |
1854 |
0 |
|
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