Validation of sea ice concentration - American sector
Bulletin date: 2023-08-17
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-08-11:
| 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 |
10855 |
9596 |
675 |
752 |
49 |
6 |
0 |
0 |
| OW |
1 |
519 |
426 |
1093 |
131 |
14 |
0 |
0 |
| VODI |
0 |
116 |
254 |
2667 |
556 |
123 |
0 |
0 |
| ODI |
0 |
4 |
16 |
1114 |
3093 |
249 |
0 |
0 |
| CDI |
0 |
6 |
9 |
31 |
2294 |
4969 |
505 |
0 |
| VCDI |
0 |
5 |
2 |
2 |
24 |
1367 |
4343 |
0 |
|
...date precedes bulletin
|
Date: 2023-08-13:
| 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 |
11577 |
9272 |
588 |
654 |
58 |
2 |
0 |
0 |
| OW |
0 |
785 |
453 |
1187 |
126 |
9 |
0 |
0 |
| VODI |
0 |
253 |
369 |
2203 |
613 |
19 |
0 |
0 |
| ODI |
0 |
21 |
47 |
1276 |
2734 |
326 |
0 |
0 |
| CDI |
0 |
14 |
9 |
38 |
1984 |
4924 |
396 |
1 |
| VCDI |
0 |
4 |
2 |
0 |
19 |
950 |
4916 |
37 |
|
...date precedes bulletin
|
Date: 2023-08-15:
| 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 |
11728 |
10461 |
812 |
670 |
58 |
0 |
0 |
0 |
| OW |
0 |
478 |
448 |
859 |
72 |
0 |
0 |
0 |
| VODI |
0 |
216 |
210 |
2646 |
620 |
2 |
0 |
0 |
| ODI |
0 |
22 |
10 |
826 |
3417 |
279 |
1 |
0 |
| CDI |
0 |
1 |
3 |
5 |
2040 |
3868 |
201 |
2 |
| VCDI |
0 |
4 |
0 |
0 |
14 |
1099 |
4760 |
34 |
|
...date precedes bulletin
|
Date: 2023-08-17:
| 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 |
13245 |
9675 |
676 |
627 |
52 |
0 |
0 |
0 |
| OW |
20 |
695 |
390 |
855 |
60 |
0 |
0 |
0 |
| VODI |
0 |
296 |
249 |
2553 |
419 |
0 |
0 |
0 |
| ODI |
0 |
14 |
4 |
1068 |
2977 |
209 |
1 |
0 |
| CDI |
0 |
3 |
1 |
8 |
2510 |
3534 |
63 |
0 |
| VCDI |
0 |
4 |
0 |
0 |
19 |
1798 |
3841 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13265 |
9610 |
672 |
670 |
61 |
0 |
0 |
0 |
| OW |
0 |
757 |
336 |
722 |
51 |
0 |
0 |
0 |
| VODI |
0 |
301 |
302 |
2463 |
406 |
0 |
0 |
0 |
| ODI |
0 |
12 |
8 |
1249 |
2951 |
193 |
1 |
0 |
| CDI |
0 |
3 |
2 |
7 |
2547 |
3462 |
80 |
0 |
| VCDI |
0 |
4 |
0 |
0 |
21 |
1886 |
3824 |
0 |
|
Date: 2023-08-19:
| 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 |
13134 |
10039 |
632 |
682 |
39 |
0 |
0 |
0 |
| OW |
2 |
873 |
461 |
832 |
43 |
0 |
0 |
0 |
| VODI |
0 |
294 |
296 |
2381 |
447 |
15 |
0 |
0 |
| ODI |
0 |
11 |
2 |
1011 |
2871 |
177 |
31 |
2 |
| CDI |
0 |
2 |
1 |
31 |
2554 |
3103 |
538 |
39 |
| VCDI |
0 |
4 |
0 |
3 |
6 |
877 |
4240 |
193 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13136 |
10033 |
701 |
801 |
46 |
0 |
0 |
0 |
| OW |
0 |
834 |
380 |
636 |
35 |
0 |
0 |
0 |
| VODI |
0 |
339 |
294 |
2277 |
439 |
19 |
0 |
0 |
| ODI |
0 |
11 |
16 |
1195 |
2830 |
190 |
29 |
2 |
| CDI |
0 |
2 |
1 |
28 |
2602 |
3071 |
575 |
35 |
| VCDI |
0 |
4 |
0 |
3 |
8 |
892 |
4205 |
197 |
|
Date: 2023-08-21:
| 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 |
12682 |
11129 |
760 |
733 |
44 |
0 |
0 |
0 |
| OW |
31 |
697 |
274 |
595 |
50 |
0 |
0 |
0 |
| VODI |
0 |
351 |
319 |
1963 |
453 |
19 |
0 |
0 |
| ODI |
0 |
13 |
40 |
1178 |
2408 |
473 |
12 |
0 |
| CDI |
0 |
3 |
4 |
51 |
2048 |
4108 |
463 |
0 |
| VCDI |
0 |
4 |
0 |
1 |
2 |
1734 |
2734 |
490 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12694 |
11032 |
709 |
697 |
44 |
0 |
0 |
0 |
| OW |
19 |
776 |
331 |
582 |
61 |
0 |
0 |
0 |
| VODI |
0 |
370 |
313 |
2164 |
442 |
20 |
0 |
0 |
| ODI |
0 |
12 |
40 |
1031 |
2390 |
486 |
26 |
0 |
| CDI |
0 |
3 |
4 |
47 |
2065 |
3987 |
433 |
0 |
| VCDI |
0 |
4 |
0 |
0 |
3 |
1841 |
2750 |
490 |
|
Date: 2023-08-23:
| 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 |
13423 |
11148 |
611 |
574 |
48 |
0 |
0 |
0 |
| OW |
49 |
717 |
221 |
497 |
16 |
0 |
0 |
0 |
| VODI |
14 |
588 |
425 |
1641 |
250 |
13 |
0 |
0 |
| ODI |
0 |
93 |
153 |
1223 |
2118 |
342 |
10 |
0 |
| CDI |
0 |
1 |
4 |
75 |
1983 |
4445 |
1106 |
0 |
| VCDI |
0 |
4 |
0 |
0 |
10 |
1702 |
2362 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13402 |
10988 |
515 |
529 |
55 |
0 |
0 |
0 |
| OW |
48 |
871 |
314 |
539 |
5 |
0 |
0 |
0 |
| VODI |
36 |
644 |
475 |
1857 |
228 |
13 |
0 |
0 |
| ODI |
0 |
43 |
106 |
1007 |
2088 |
380 |
12 |
0 |
| CDI |
0 |
1 |
4 |
78 |
2045 |
4049 |
1222 |
0 |
| VCDI |
0 |
4 |
0 |
0 |
4 |
2060 |
2244 |
0 |
|
Date: 2023-08-25:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
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