Validation of sea ice concentration - American sector
Bulletin date: 2023-06-22
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-06-16:
| 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 |
59 |
4035 |
586 |
1317 |
686 |
388 |
0 |
0 |
| OW |
0 |
97 |
51 |
543 |
608 |
241 |
0 |
0 |
| VODI |
0 |
36 |
19 |
259 |
1078 |
496 |
2 |
0 |
| ODI |
0 |
25 |
31 |
92 |
874 |
741 |
27 |
0 |
| CDI |
0 |
15 |
8 |
153 |
660 |
1571 |
784 |
0 |
| VCDI |
0 |
0 |
0 |
53 |
964 |
3356 |
12592 |
13419 |
|
...date precedes bulletin
|
Date: 2023-06-18:
| 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 |
65 |
4404 |
558 |
1669 |
969 |
0 |
0 |
0 |
| OW |
0 |
123 |
83 |
689 |
828 |
11 |
0 |
0 |
| VODI |
0 |
42 |
24 |
491 |
1288 |
55 |
8 |
0 |
| ODI |
0 |
35 |
29 |
128 |
1059 |
140 |
34 |
0 |
| CDI |
0 |
20 |
28 |
166 |
931 |
1897 |
516 |
0 |
| VCDI |
0 |
0 |
1 |
28 |
1380 |
3712 |
11486 |
12969 |
|
...date precedes bulletin
|
Date: 2023-06-20:
| 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 |
58 |
5055 |
554 |
1896 |
852 |
0 |
0 |
0 |
| OW |
1 |
81 |
77 |
700 |
607 |
11 |
0 |
0 |
| VODI |
0 |
13 |
24 |
609 |
1355 |
20 |
5 |
0 |
| ODI |
0 |
10 |
8 |
129 |
1330 |
153 |
10 |
0 |
| CDI |
0 |
1 |
0 |
34 |
1192 |
4017 |
294 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1025 |
5737 |
7030 |
12978 |
|
...date precedes bulletin
|
Date: 2023-06-22:
| 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 |
72 |
5608 |
568 |
2353 |
529 |
13 |
0 |
0 |
| OW |
2 |
90 |
62 |
1049 |
566 |
13 |
3 |
0 |
| VODI |
0 |
23 |
22 |
511 |
1269 |
33 |
24 |
0 |
| ODI |
0 |
22 |
8 |
112 |
685 |
191 |
37 |
0 |
| CDI |
0 |
4 |
3 |
52 |
1045 |
4699 |
582 |
0 |
| VCDI |
0 |
0 |
0 |
11 |
677 |
6742 |
5224 |
12962 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
72 |
5588 |
560 |
2430 |
614 |
15 |
0 |
0 |
| OW |
2 |
106 |
66 |
1007 |
513 |
15 |
1 |
0 |
| VODI |
0 |
27 |
24 |
463 |
1286 |
36 |
27 |
0 |
| ODI |
0 |
19 |
9 |
126 |
629 |
189 |
36 |
0 |
| CDI |
0 |
7 |
4 |
52 |
1063 |
4757 |
656 |
0 |
| VCDI |
0 |
0 |
0 |
10 |
666 |
6679 |
5150 |
12962 |
|
Date: 2023-06-24:
| 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 |
155 |
6222 |
658 |
2429 |
422 |
22 |
1 |
0 |
| OW |
1 |
128 |
71 |
999 |
590 |
19 |
15 |
0 |
| VODI |
0 |
47 |
33 |
378 |
948 |
40 |
39 |
0 |
| ODI |
0 |
22 |
21 |
113 |
558 |
161 |
57 |
1 |
| CDI |
0 |
1 |
4 |
71 |
1202 |
4590 |
545 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
791 |
6221 |
6236 |
12055 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
155 |
6191 |
637 |
2543 |
515 |
27 |
3 |
0 |
| OW |
1 |
161 |
91 |
895 |
547 |
18 |
14 |
0 |
| VODI |
0 |
46 |
35 |
383 |
898 |
33 |
40 |
0 |
| ODI |
0 |
16 |
19 |
101 |
556 |
170 |
67 |
1 |
| CDI |
0 |
6 |
5 |
68 |
1233 |
4690 |
614 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
762 |
6115 |
6155 |
12055 |
|
Date: 2023-06-26:
| 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 |
605 |
7442 |
670 |
1855 |
231 |
4 |
0 |
0 |
| OW |
1 |
41 |
74 |
908 |
132 |
11 |
4 |
0 |
| VODI |
0 |
13 |
10 |
737 |
504 |
16 |
9 |
0 |
| ODI |
0 |
3 |
4 |
91 |
1259 |
107 |
19 |
0 |
| CDI |
0 |
0 |
0 |
3 |
1734 |
4490 |
384 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1310 |
5342 |
8427 |
9426 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
605 |
7150 |
606 |
2466 |
378 |
23 |
6 |
0 |
| OW |
1 |
232 |
95 |
653 |
476 |
32 |
7 |
0 |
| VODI |
0 |
81 |
30 |
264 |
346 |
46 |
26 |
0 |
| ODI |
0 |
25 |
19 |
109 |
537 |
282 |
54 |
0 |
| CDI |
0 |
11 |
8 |
102 |
1612 |
3386 |
2180 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1821 |
6201 |
6570 |
9426 |
|
Date: 2023-06-28:
| 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 |
1001 |
7841 |
819 |
1796 |
198 |
10 |
0 |
0 |
| OW |
1 |
58 |
65 |
788 |
154 |
22 |
1 |
0 |
| VODI |
0 |
18 |
13 |
486 |
464 |
24 |
4 |
0 |
| ODI |
0 |
5 |
1 |
110 |
823 |
398 |
10 |
0 |
| CDI |
0 |
0 |
0 |
4 |
1308 |
5033 |
475 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
203 |
7486 |
10383 |
5864 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1002 |
7568 |
754 |
2392 |
426 |
59 |
7 |
0 |
| OW |
0 |
218 |
83 |
313 |
175 |
31 |
9 |
0 |
| VODI |
0 |
79 |
31 |
247 |
229 |
82 |
42 |
0 |
| ODI |
0 |
48 |
20 |
108 |
628 |
350 |
60 |
0 |
| CDI |
0 |
9 |
10 |
124 |
1318 |
4421 |
1726 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
374 |
8030 |
9029 |
5864 |
|
Date: 2023-06-30:
| 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 |
1493 |
8838 |
542 |
1048 |
173 |
12 |
0 |
0 |
| OW |
0 |
169 |
117 |
672 |
119 |
22 |
0 |
0 |
| VODI |
0 |
13 |
29 |
462 |
307 |
39 |
0 |
0 |
| ODI |
0 |
5 |
0 |
133 |
1110 |
289 |
8 |
0 |
| CDI |
0 |
0 |
0 |
9 |
1322 |
5986 |
189 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
149 |
10225 |
8565 |
3821 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1493 |
8594 |
535 |
1603 |
328 |
56 |
10 |
0 |
| OW |
0 |
271 |
76 |
169 |
92 |
29 |
9 |
0 |
| VODI |
0 |
95 |
37 |
299 |
275 |
95 |
39 |
0 |
| ODI |
0 |
56 |
27 |
151 |
778 |
433 |
49 |
0 |
| CDI |
0 |
9 |
13 |
102 |
1490 |
6135 |
190 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
217 |
9825 |
8465 |
3821 |
|
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