Validation of sea ice concentration - American sector
Bulletin date: 2024-09-05
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-08-30:
| 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 |
18331 |
5067 |
29 |
10 |
0 |
0 |
0 |
0 |
| OW |
165 |
2941 |
450 |
223 |
2 |
0 |
0 |
0 |
| VODI |
21 |
304 |
464 |
2200 |
193 |
16 |
0 |
0 |
| ODI |
1 |
5 |
11 |
921 |
5059 |
698 |
12 |
0 |
| CDI |
0 |
17 |
4 |
42 |
984 |
3897 |
364 |
0 |
| VCDI |
0 |
12 |
1 |
13 |
39 |
697 |
2673 |
0 |
|
...date precedes bulletin
|
Date: 2024-09-01:
| 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 |
18925 |
4541 |
9 |
3 |
0 |
0 |
0 |
0 |
| OW |
154 |
2905 |
414 |
213 |
5 |
0 |
0 |
0 |
| VODI |
19 |
366 |
520 |
2021 |
244 |
25 |
2 |
0 |
| ODI |
0 |
6 |
8 |
1071 |
4983 |
900 |
42 |
0 |
| CDI |
0 |
15 |
9 |
26 |
707 |
4096 |
384 |
0 |
| VCDI |
0 |
11 |
2 |
8 |
48 |
684 |
2500 |
0 |
|
...date precedes bulletin
|
Date: 2024-09-03:
| 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 |
19214 |
5649 |
40 |
22 |
0 |
0 |
0 |
0 |
| OW |
192 |
1910 |
435 |
289 |
3 |
0 |
0 |
0 |
| VODI |
5 |
243 |
318 |
2147 |
238 |
3 |
0 |
0 |
| ODI |
0 |
10 |
5 |
956 |
5386 |
916 |
1 |
0 |
| CDI |
0 |
25 |
6 |
25 |
499 |
3962 |
427 |
0 |
| VCDI |
0 |
3 |
0 |
4 |
15 |
630 |
2288 |
0 |
|
...date precedes bulletin
|
Date: 2024-09-05:
| 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 |
19753 |
5345 |
26 |
30 |
3 |
0 |
0 |
0 |
| OW |
154 |
1985 |
361 |
142 |
49 |
2 |
0 |
0 |
| VODI |
8 |
364 |
345 |
1742 |
418 |
7 |
0 |
0 |
| ODI |
0 |
26 |
14 |
904 |
4824 |
1482 |
0 |
0 |
| CDI |
0 |
22 |
5 |
42 |
520 |
3777 |
567 |
0 |
| VCDI |
0 |
7 |
0 |
10 |
11 |
825 |
2096 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
19776 |
5236 |
31 |
27 |
3 |
0 |
0 |
0 |
| OW |
135 |
2029 |
366 |
159 |
64 |
2 |
0 |
0 |
| VODI |
4 |
427 |
332 |
1759 |
500 |
9 |
0 |
0 |
| ODI |
0 |
25 |
17 |
874 |
4747 |
1584 |
0 |
0 |
| CDI |
0 |
27 |
5 |
42 |
494 |
3643 |
570 |
0 |
| VCDI |
0 |
5 |
0 |
9 |
17 |
855 |
2093 |
0 |
|
Date: 2024-09-07:
| 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 |
20367 |
4954 |
27 |
16 |
0 |
0 |
0 |
0 |
| OW |
169 |
1951 |
282 |
152 |
52 |
18 |
0 |
0 |
| VODI |
13 |
467 |
369 |
1447 |
427 |
10 |
0 |
0 |
| ODI |
0 |
22 |
11 |
493 |
4496 |
1386 |
0 |
0 |
| CDI |
0 |
27 |
3 |
55 |
369 |
4122 |
980 |
0 |
| VCDI |
0 |
9 |
0 |
4 |
20 |
1720 |
1428 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20364 |
4796 |
28 |
13 |
0 |
0 |
0 |
0 |
| OW |
172 |
2044 |
302 |
183 |
64 |
18 |
0 |
0 |
| VODI |
13 |
528 |
338 |
1372 |
469 |
10 |
0 |
0 |
| ODI |
0 |
23 |
20 |
533 |
4431 |
1780 |
3 |
0 |
| CDI |
0 |
31 |
4 |
62 |
358 |
3738 |
1024 |
0 |
| VCDI |
0 |
8 |
0 |
4 |
42 |
1710 |
1381 |
0 |
|
Date: 2024-09-09:
| 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 |
20911 |
5529 |
27 |
0 |
0 |
0 |
0 |
0 |
| OW |
71 |
1725 |
448 |
243 |
1 |
0 |
0 |
0 |
| VODI |
1 |
94 |
167 |
1244 |
216 |
0 |
0 |
0 |
| ODI |
0 |
23 |
6 |
310 |
3302 |
341 |
0 |
0 |
| CDI |
0 |
25 |
6 |
58 |
485 |
5714 |
829 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
12 |
1039 |
3038 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20808 |
4461 |
14 |
10 |
0 |
0 |
0 |
0 |
| OW |
168 |
2209 |
246 |
124 |
6 |
0 |
0 |
0 |
| VODI |
7 |
645 |
363 |
1200 |
398 |
38 |
0 |
0 |
| ODI |
0 |
36 |
22 |
453 |
3333 |
2184 |
236 |
0 |
| CDI |
0 |
45 |
9 |
48 |
234 |
3608 |
2121 |
0 |
| VCDI |
0 |
0 |
0 |
21 |
45 |
1264 |
1510 |
0 |
|
Date: 2024-09-11:
| 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 |
20826 |
5808 |
49 |
5 |
0 |
0 |
0 |
0 |
| OW |
124 |
1590 |
418 |
276 |
3 |
0 |
0 |
0 |
| VODI |
2 |
119 |
176 |
1215 |
234 |
1 |
0 |
0 |
| ODI |
0 |
32 |
8 |
301 |
2197 |
652 |
9 |
0 |
| CDI |
0 |
29 |
6 |
43 |
643 |
4448 |
869 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
9 |
1383 |
4389 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20704 |
4821 |
28 |
13 |
0 |
0 |
0 |
0 |
| OW |
220 |
1941 |
252 |
182 |
13 |
0 |
0 |
0 |
| VODI |
28 |
710 |
337 |
1081 |
387 |
40 |
1 |
0 |
| ODI |
0 |
67 |
33 |
507 |
2178 |
2301 |
121 |
0 |
| CDI |
0 |
38 |
7 |
56 |
491 |
3689 |
2430 |
0 |
| VCDI |
0 |
1 |
0 |
3 |
17 |
454 |
2715 |
0 |
|
Date: 2024-09-13:
| 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 |
21228 |
5538 |
49 |
7 |
5 |
0 |
0 |
0 |
| OW |
137 |
1560 |
333 |
227 |
43 |
4 |
0 |
0 |
| VODI |
0 |
171 |
216 |
1174 |
296 |
12 |
1 |
0 |
| ODI |
0 |
34 |
17 |
338 |
1551 |
419 |
11 |
0 |
| CDI |
0 |
26 |
9 |
38 |
626 |
4045 |
1131 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
20 |
2659 |
3938 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
21179 |
4534 |
41 |
5 |
3 |
0 |
0 |
0 |
| OW |
157 |
1918 |
187 |
168 |
52 |
4 |
0 |
0 |
| VODI |
29 |
776 |
348 |
994 |
326 |
47 |
1 |
0 |
| ODI |
0 |
62 |
32 |
559 |
1661 |
1524 |
47 |
0 |
| CDI |
0 |
39 |
16 |
58 |
487 |
4632 |
2493 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
12 |
932 |
2540 |
0 |
|
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