Validation of sea ice concentration - American sector
Bulletin date: 2024-09-12
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
|
...date precedes bulletin
|
Date: 2024-09-08:
| 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 |
20802 |
4553 |
20 |
1 |
0 |
0 |
0 |
0 |
| OW |
234 |
1995 |
234 |
155 |
8 |
0 |
0 |
0 |
| VODI |
70 |
518 |
367 |
1416 |
387 |
7 |
0 |
0 |
| ODI |
0 |
29 |
11 |
318 |
4087 |
1555 |
0 |
0 |
| CDI |
0 |
40 |
5 |
44 |
495 |
4221 |
1120 |
0 |
| VCDI |
0 |
3 |
0 |
8 |
34 |
1599 |
1530 |
0 |
|
...date precedes bulletin
|
Date: 2024-09-10:
| 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 |
21440 |
5126 |
33 |
0 |
0 |
0 |
0 |
0 |
| OW |
57 |
1730 |
418 |
220 |
4 |
0 |
0 |
0 |
| VODI |
0 |
109 |
175 |
1253 |
194 |
0 |
0 |
0 |
| ODI |
0 |
26 |
6 |
362 |
2521 |
654 |
4 |
0 |
| CDI |
0 |
29 |
4 |
53 |
1002 |
4561 |
824 |
0 |
| VCDI |
0 |
0 |
0 |
13 |
23 |
1403 |
3622 |
0 |
|
...date precedes bulletin
|
Date: 2024-09-12:
| 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 |
20836 |
5882 |
38 |
6 |
0 |
0 |
0 |
0 |
| OW |
152 |
1627 |
363 |
227 |
4 |
0 |
0 |
0 |
| VODI |
3 |
158 |
225 |
1189 |
206 |
0 |
0 |
0 |
| ODI |
0 |
33 |
11 |
390 |
1929 |
499 |
9 |
0 |
| CDI |
0 |
30 |
9 |
52 |
693 |
4065 |
871 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
9 |
1981 |
4367 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20826 |
5935 |
85 |
15 |
0 |
0 |
0 |
0 |
| OW |
162 |
1517 |
288 |
222 |
5 |
0 |
0 |
0 |
| VODI |
3 |
210 |
247 |
1085 |
170 |
4 |
1 |
0 |
| ODI |
0 |
37 |
16 |
490 |
1953 |
566 |
11 |
0 |
| CDI |
0 |
31 |
10 |
44 |
695 |
3761 |
794 |
0 |
| VCDI |
0 |
0 |
0 |
10 |
18 |
2214 |
4441 |
0 |
|
Date: 2024-09-14:
| 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 |
21201 |
5487 |
106 |
63 |
3 |
0 |
0 |
0 |
| OW |
131 |
1320 |
317 |
328 |
100 |
6 |
0 |
0 |
| VODI |
0 |
176 |
172 |
1002 |
441 |
107 |
2 |
0 |
| ODI |
0 |
38 |
25 |
164 |
957 |
817 |
66 |
0 |
| CDI |
0 |
24 |
5 |
34 |
261 |
4539 |
1696 |
0 |
| VCDI |
0 |
3 |
0 |
4 |
8 |
2576 |
3687 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
21204 |
5506 |
131 |
67 |
6 |
0 |
0 |
0 |
| OW |
128 |
1241 |
255 |
312 |
69 |
9 |
0 |
0 |
| VODI |
0 |
233 |
206 |
928 |
419 |
81 |
2 |
0 |
| ODI |
0 |
41 |
26 |
245 |
990 |
916 |
69 |
0 |
| CDI |
0 |
24 |
7 |
39 |
275 |
3987 |
1536 |
0 |
| VCDI |
0 |
3 |
0 |
4 |
11 |
3052 |
3844 |
0 |
|
Date: 2024-09-16:
| 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 |
20852 |
6417 |
179 |
111 |
0 |
0 |
0 |
0 |
| OW |
68 |
739 |
263 |
477 |
161 |
8 |
0 |
0 |
| VODI |
0 |
84 |
87 |
615 |
462 |
229 |
6 |
0 |
| ODI |
0 |
11 |
6 |
108 |
1053 |
1444 |
68 |
0 |
| CDI |
0 |
20 |
2 |
16 |
101 |
3756 |
2787 |
0 |
| VCDI |
0 |
1 |
1 |
0 |
0 |
1375 |
4359 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20795 |
6002 |
128 |
96 |
0 |
0 |
0 |
0 |
| OW |
122 |
1020 |
275 |
386 |
38 |
0 |
0 |
0 |
| VODI |
3 |
190 |
109 |
723 |
524 |
129 |
0 |
0 |
| ODI |
0 |
37 |
20 |
94 |
1054 |
627 |
76 |
0 |
| CDI |
0 |
19 |
4 |
28 |
151 |
3476 |
3255 |
0 |
| VCDI |
0 |
4 |
2 |
0 |
10 |
2580 |
3889 |
0 |
|
Date: 2024-09-18:
| 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 |
21097 |
6164 |
198 |
122 |
2 |
0 |
0 |
0 |
| OW |
141 |
656 |
230 |
515 |
137 |
4 |
0 |
0 |
| VODI |
11 |
37 |
53 |
336 |
739 |
210 |
7 |
0 |
| ODI |
0 |
14 |
6 |
70 |
743 |
1528 |
48 |
0 |
| CDI |
0 |
16 |
11 |
22 |
152 |
2101 |
1657 |
0 |
| VCDI |
0 |
1 |
0 |
0 |
2 |
1995 |
6837 |
4 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20991 |
5775 |
174 |
165 |
0 |
0 |
0 |
0 |
| OW |
217 |
841 |
213 |
364 |
141 |
6 |
0 |
0 |
| VODI |
41 |
193 |
85 |
419 |
557 |
243 |
38 |
0 |
| ODI |
0 |
51 |
10 |
92 |
697 |
781 |
62 |
0 |
| CDI |
0 |
28 |
16 |
25 |
371 |
2251 |
1661 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
9 |
2557 |
6788 |
4 |
|
Date: 2024-09-20:
| 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 |
20802 |
6119 |
161 |
220 |
8 |
0 |
0 |
0 |
| OW |
111 |
568 |
223 |
573 |
289 |
22 |
0 |
0 |
| VODI |
4 |
74 |
33 |
399 |
671 |
375 |
6 |
0 |
| ODI |
0 |
16 |
9 |
75 |
943 |
1052 |
59 |
0 |
| CDI |
0 |
14 |
6 |
39 |
295 |
2733 |
810 |
0 |
| VCDI |
0 |
2 |
0 |
1 |
22 |
3016 |
5569 |
547 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20682 |
5768 |
159 |
272 |
85 |
1 |
0 |
0 |
| OW |
205 |
667 |
170 |
408 |
236 |
100 |
1 |
0 |
| VODI |
30 |
252 |
72 |
388 |
592 |
322 |
31 |
0 |
| ODI |
0 |
71 |
23 |
180 |
568 |
437 |
87 |
0 |
| CDI |
0 |
31 |
8 |
58 |
725 |
1934 |
1615 |
0 |
| VCDI |
0 |
4 |
0 |
1 |
22 |
4404 |
4710 |
547 |
|
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