Validation of sea ice concentration - American sector
Bulletin date: 2021-08-26
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2021-08-20:
| 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 |
11399 |
6494 |
96 |
475 |
38 |
0 |
0 |
0 |
| OW |
0 |
306 |
50 |
579 |
63 |
4 |
0 |
0 |
| VODI |
0 |
60 |
30 |
2871 |
1166 |
11 |
0 |
0 |
| ODI |
0 |
7 |
1 |
367 |
3388 |
603 |
0 |
0 |
| CDI |
0 |
0 |
0 |
4 |
1723 |
5556 |
3435 |
719 |
| VCDI |
0 |
16 |
4 |
78 |
158 |
1379 |
4593 |
193 |
|
...date precedes bulletin
|
Date: 2021-08-22:
| 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 |
11925 |
6171 |
82 |
491 |
78 |
0 |
0 |
0 |
| OW |
0 |
374 |
50 |
592 |
119 |
0 |
0 |
0 |
| VODI |
0 |
197 |
48 |
3119 |
1270 |
14 |
0 |
0 |
| ODI |
0 |
1 |
1 |
440 |
2690 |
557 |
2 |
0 |
| CDI |
0 |
0 |
1 |
37 |
1966 |
6621 |
2999 |
69 |
| VCDI |
0 |
5 |
2 |
68 |
128 |
1372 |
3944 |
433 |
|
...date precedes bulletin
|
Date: 2021-08-24:
| 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 |
11851 |
6532 |
80 |
459 |
46 |
0 |
0 |
0 |
| OW |
13 |
511 |
43 |
529 |
48 |
0 |
0 |
0 |
| VODI |
0 |
334 |
93 |
3711 |
656 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
350 |
4244 |
271 |
0 |
0 |
| CDI |
0 |
7 |
2 |
48 |
2847 |
4239 |
880 |
0 |
| VCDI |
0 |
0 |
0 |
43 |
153 |
1857 |
5587 |
432 |
|
...date precedes bulletin
|
Date: 2021-08-26:
| 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 |
12902 |
5732 |
73 |
423 |
28 |
0 |
0 |
0 |
| OW |
19 |
696 |
57 |
635 |
48 |
0 |
0 |
0 |
| VODI |
0 |
419 |
99 |
3561 |
715 |
1 |
0 |
0 |
| ODI |
0 |
0 |
0 |
368 |
3448 |
470 |
0 |
0 |
| CDI |
0 |
10 |
0 |
26 |
4158 |
2736 |
1009 |
0 |
| VCDI |
0 |
23 |
7 |
80 |
115 |
1992 |
4602 |
1414 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12913 |
5811 |
81 |
558 |
29 |
0 |
0 |
0 |
| OW |
8 |
460 |
41 |
566 |
44 |
0 |
0 |
0 |
| VODI |
0 |
576 |
107 |
3242 |
583 |
3 |
0 |
0 |
| ODI |
0 |
0 |
0 |
628 |
3627 |
469 |
0 |
0 |
| CDI |
0 |
8 |
0 |
18 |
4059 |
2493 |
990 |
0 |
| VCDI |
0 |
25 |
7 |
81 |
170 |
2234 |
4621 |
1414 |
|
Date: 2021-08-28:
| 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 |
12797 |
5951 |
68 |
352 |
32 |
20 |
0 |
0 |
| OW |
11 |
1005 |
69 |
744 |
60 |
7 |
0 |
0 |
| VODI |
0 |
643 |
107 |
3164 |
576 |
12 |
0 |
0 |
| ODI |
0 |
0 |
0 |
600 |
3040 |
467 |
8 |
0 |
| CDI |
0 |
11 |
4 |
54 |
3795 |
3267 |
868 |
2 |
| VCDI |
0 |
1 |
4 |
38 |
311 |
2380 |
5188 |
210 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12805 |
6192 |
81 |
501 |
28 |
21 |
0 |
0 |
| OW |
3 |
584 |
39 |
469 |
65 |
4 |
0 |
0 |
| VODI |
0 |
823 |
124 |
3057 |
509 |
10 |
0 |
0 |
| ODI |
0 |
0 |
0 |
839 |
3129 |
448 |
15 |
0 |
| CDI |
0 |
11 |
4 |
47 |
3693 |
2467 |
798 |
0 |
| VCDI |
0 |
1 |
4 |
39 |
390 |
3203 |
5251 |
212 |
|
Date: 2021-08-30:
| 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 |
12416 |
6672 |
103 |
310 |
35 |
14 |
0 |
0 |
| OW |
0 |
1515 |
101 |
611 |
17 |
4 |
0 |
0 |
| VODI |
0 |
230 |
92 |
3850 |
458 |
7 |
0 |
0 |
| ODI |
0 |
0 |
0 |
258 |
5076 |
216 |
0 |
0 |
| CDI |
0 |
17 |
5 |
127 |
2473 |
4691 |
315 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
20 |
1289 |
4859 |
84 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12414 |
6770 |
114 |
480 |
41 |
15 |
0 |
0 |
| OW |
2 |
694 |
45 |
573 |
43 |
6 |
0 |
0 |
| VODI |
0 |
950 |
133 |
2870 |
485 |
9 |
0 |
0 |
| ODI |
0 |
3 |
4 |
1044 |
2622 |
167 |
5 |
0 |
| CDI |
0 |
0 |
2 |
145 |
4154 |
1555 |
877 |
0 |
| VCDI |
0 |
17 |
3 |
45 |
734 |
4469 |
4292 |
84 |
|
Date: 2021-09-01:
| 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 |
12044 |
7269 |
105 |
442 |
18 |
1 |
0 |
0 |
| OW |
0 |
1327 |
127 |
1342 |
23 |
1 |
0 |
0 |
| VODI |
0 |
61 |
35 |
3120 |
768 |
2 |
0 |
0 |
| ODI |
0 |
0 |
1 |
345 |
4180 |
180 |
0 |
0 |
| CDI |
0 |
17 |
4 |
152 |
3289 |
3869 |
442 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
9 |
3147 |
3530 |
11 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12042 |
7157 |
115 |
725 |
29 |
2 |
0 |
0 |
| OW |
2 |
763 |
63 |
766 |
73 |
1 |
0 |
0 |
| VODI |
0 |
731 |
88 |
2740 |
564 |
2 |
0 |
0 |
| ODI |
0 |
6 |
2 |
902 |
2242 |
73 |
1 |
0 |
| CDI |
0 |
1 |
0 |
207 |
4110 |
1455 |
665 |
0 |
| VCDI |
0 |
16 |
4 |
66 |
1269 |
5667 |
3306 |
11 |
|
Date: 2021-09-03:
| 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 |
12985 |
6393 |
78 |
409 |
16 |
3 |
0 |
0 |
| OW |
0 |
1578 |
138 |
1343 |
157 |
2 |
0 |
0 |
| VODI |
0 |
112 |
54 |
2560 |
1033 |
4 |
0 |
0 |
| ODI |
0 |
1 |
1 |
344 |
2887 |
249 |
0 |
0 |
| CDI |
0 |
21 |
9 |
125 |
2594 |
4647 |
393 |
0 |
| VCDI |
0 |
1 |
1 |
3 |
18 |
3205 |
4405 |
97 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12985 |
6102 |
86 |
648 |
40 |
4 |
0 |
0 |
| OW |
0 |
1097 |
49 |
528 |
112 |
2 |
0 |
0 |
| VODI |
0 |
874 |
134 |
2331 |
782 |
23 |
0 |
0 |
| ODI |
0 |
11 |
2 |
1048 |
1741 |
154 |
5 |
0 |
| CDI |
0 |
0 |
2 |
146 |
3559 |
1994 |
740 |
0 |
| VCDI |
0 |
22 |
8 |
83 |
471 |
5933 |
4053 |
97 |
|
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