Validation of sea ice concentration - American sector
Bulletin date: 2024-08-29
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-08-23:
| 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 |
17771 |
3945 |
18 |
3 |
0 |
0 |
0 |
0 |
| OW |
153 |
2506 |
300 |
89 |
0 |
0 |
0 |
0 |
| VODI |
47 |
679 |
824 |
2747 |
260 |
8 |
0 |
0 |
| ODI |
20 |
35 |
27 |
738 |
5436 |
1413 |
1 |
0 |
| CDI |
4 |
5 |
1 |
21 |
907 |
3878 |
255 |
0 |
| VCDI |
0 |
26 |
3 |
11 |
39 |
1661 |
2035 |
0 |
|
...date precedes bulletin
|
Date: 2024-08-25:
| 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 |
18542 |
3185 |
12 |
0 |
0 |
0 |
0 |
0 |
| OW |
282 |
2482 |
215 |
111 |
11 |
1 |
0 |
0 |
| VODI |
50 |
1125 |
873 |
2283 |
206 |
45 |
15 |
0 |
| ODI |
23 |
33 |
25 |
1089 |
5477 |
1624 |
46 |
0 |
| CDI |
1 |
19 |
0 |
35 |
811 |
2901 |
501 |
0 |
| VCDI |
0 |
11 |
0 |
14 |
44 |
1081 |
2693 |
0 |
|
...date precedes bulletin
|
Date: 2024-08-27:
| 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 |
18787 |
4147 |
17 |
0 |
0 |
0 |
0 |
0 |
| OW |
194 |
2834 |
648 |
233 |
0 |
0 |
0 |
0 |
| VODI |
24 |
248 |
443 |
2319 |
209 |
6 |
0 |
0 |
| ODI |
8 |
3 |
4 |
625 |
4643 |
1081 |
28 |
0 |
| CDI |
0 |
21 |
2 |
18 |
694 |
4436 |
781 |
0 |
| VCDI |
0 |
7 |
0 |
5 |
17 |
702 |
2682 |
0 |
|
...date precedes bulletin
|
Date: 2024-08-29:
| 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 |
18241 |
5033 |
19 |
3 |
0 |
0 |
0 |
0 |
| OW |
169 |
2955 |
497 |
226 |
2 |
0 |
0 |
0 |
| VODI |
23 |
266 |
502 |
2243 |
174 |
13 |
1 |
0 |
| ODI |
4 |
8 |
4 |
990 |
4641 |
822 |
29 |
0 |
| CDI |
0 |
9 |
4 |
27 |
832 |
3795 |
864 |
0 |
| VCDI |
0 |
20 |
1 |
15 |
30 |
802 |
2602 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18220 |
5147 |
25 |
8 |
0 |
0 |
0 |
0 |
| OW |
188 |
2784 |
467 |
245 |
5 |
0 |
0 |
0 |
| VODI |
28 |
324 |
522 |
2111 |
191 |
16 |
0 |
0 |
| ODI |
1 |
7 |
8 |
1093 |
4499 |
939 |
17 |
0 |
| CDI |
0 |
10 |
4 |
31 |
951 |
3688 |
933 |
0 |
| VCDI |
0 |
19 |
1 |
16 |
33 |
789 |
2546 |
0 |
|
Date: 2024-08-31:
| 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 |
19038 |
4508 |
9 |
2 |
0 |
0 |
0 |
0 |
| OW |
154 |
2892 |
407 |
194 |
3 |
0 |
0 |
0 |
| VODI |
23 |
394 |
510 |
2073 |
189 |
20 |
0 |
0 |
| ODI |
1 |
6 |
11 |
1088 |
4988 |
760 |
35 |
0 |
| CDI |
0 |
15 |
6 |
32 |
891 |
3808 |
393 |
0 |
| VCDI |
0 |
10 |
1 |
13 |
43 |
878 |
2471 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
19007 |
4628 |
17 |
7 |
0 |
0 |
0 |
0 |
| OW |
188 |
2669 |
384 |
211 |
3 |
0 |
0 |
0 |
| VODI |
20 |
497 |
523 |
1923 |
222 |
23 |
0 |
0 |
| ODI |
1 |
5 |
13 |
1212 |
4834 |
735 |
26 |
0 |
| CDI |
0 |
20 |
6 |
37 |
1005 |
3750 |
433 |
0 |
| VCDI |
0 |
6 |
1 |
12 |
50 |
958 |
2440 |
0 |
|
Date: 2024-09-02:
| 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 |
19303 |
5583 |
40 |
9 |
0 |
0 |
0 |
0 |
| OW |
117 |
1992 |
534 |
204 |
0 |
0 |
0 |
0 |
| VODI |
3 |
136 |
300 |
2245 |
188 |
4 |
0 |
0 |
| ODI |
0 |
2 |
7 |
905 |
5346 |
919 |
1 |
0 |
| CDI |
0 |
21 |
6 |
17 |
420 |
4150 |
436 |
0 |
| VCDI |
0 |
5 |
0 |
6 |
18 |
344 |
2605 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
19240 |
4258 |
16 |
2 |
0 |
0 |
0 |
0 |
| OW |
171 |
2884 |
282 |
110 |
0 |
1 |
0 |
0 |
| VODI |
12 |
562 |
565 |
1880 |
221 |
7 |
0 |
0 |
| ODI |
0 |
7 |
16 |
1361 |
4692 |
994 |
2 |
0 |
| CDI |
0 |
19 |
8 |
21 |
1003 |
3803 |
452 |
0 |
| VCDI |
0 |
9 |
0 |
12 |
56 |
612 |
2588 |
0 |
|
Date: 2024-09-04:
| 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 |
13246 |
4323 |
7258 |
157 |
0 |
0 |
0 |
0 |
| OW |
199 |
1454 |
656 |
474 |
16 |
0 |
0 |
0 |
| VODI |
9 |
271 |
684 |
1818 |
196 |
2 |
1 |
0 |
| ODI |
0 |
8 |
665 |
2861 |
3608 |
127 |
3 |
0 |
| CDI |
0 |
24 |
214 |
1153 |
1601 |
1620 |
265 |
0 |
| VCDI |
0 |
4 |
0 |
5 |
112 |
835 |
1997 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13136 |
3552 |
6835 |
18 |
1 |
0 |
0 |
0 |
| OW |
299 |
1962 |
778 |
306 |
14 |
1 |
2 |
0 |
| VODI |
19 |
521 |
952 |
1719 |
114 |
2 |
1 |
0 |
| ODI |
0 |
19 |
562 |
2870 |
3618 |
103 |
6 |
0 |
| CDI |
0 |
13 |
350 |
1535 |
1628 |
1474 |
342 |
0 |
| VCDI |
0 |
17 |
0 |
20 |
158 |
1004 |
1915 |
0 |
|
Date: 2024-09-06:
| 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 |
19771 |
5465 |
37 |
24 |
0 |
0 |
0 |
0 |
| OW |
122 |
1981 |
336 |
160 |
52 |
8 |
0 |
0 |
| VODI |
5 |
401 |
348 |
1424 |
546 |
20 |
0 |
0 |
| ODI |
0 |
14 |
7 |
388 |
3788 |
2661 |
32 |
0 |
| CDI |
0 |
20 |
2 |
51 |
408 |
4260 |
475 |
0 |
| VCDI |
0 |
9 |
0 |
7 |
12 |
1466 |
1566 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
19550 |
4165 |
33 |
27 |
7 |
0 |
0 |
0 |
| OW |
341 |
2583 |
224 |
113 |
48 |
8 |
0 |
0 |
| VODI |
7 |
1067 |
430 |
1274 |
389 |
35 |
0 |
0 |
| ODI |
0 |
42 |
41 |
516 |
3379 |
2089 |
1 |
0 |
| CDI |
0 |
14 |
2 |
94 |
927 |
4811 |
492 |
0 |
| VCDI |
0 |
19 |
0 |
30 |
56 |
1472 |
1580 |
0 |
|
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