Validation of sea ice concentration - American sector
Bulletin date: 2024-09-26
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
34855 |
7132 |
211 |
199 |
3 |
1 |
0 |
0 |
| OW |
127 |
421 |
224 |
789 |
311 |
3 |
0 |
0 |
| VODI |
5 |
35 |
5 |
416 |
987 |
160 |
0 |
0 |
| ODI |
0 |
6 |
3 |
41 |
1061 |
1071 |
0 |
0 |
| CDI |
0 |
26 |
0 |
22 |
327 |
3482 |
96 |
0 |
| VCDI |
0 |
4 |
0 |
0 |
39 |
4573 |
4204 |
392 |
|
...date precedes bulletin
|
Date: 2024-09-22:
| 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 |
34496 |
7151 |
172 |
310 |
9 |
0 |
0 |
0 |
| OW |
123 |
489 |
198 |
853 |
301 |
0 |
0 |
0 |
| VODI |
3 |
58 |
12 |
307 |
1203 |
156 |
0 |
0 |
| ODI |
0 |
30 |
4 |
30 |
908 |
1049 |
0 |
0 |
| CDI |
0 |
27 |
2 |
36 |
195 |
3217 |
166 |
0 |
| VCDI |
0 |
13 |
0 |
0 |
61 |
2164 |
6668 |
820 |
|
...date precedes bulletin
|
Date: 2024-09-24:
| 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 |
36021 |
6109 |
134 |
98 |
2 |
0 |
0 |
0 |
| OW |
34 |
425 |
218 |
429 |
56 |
4 |
0 |
0 |
| VODI |
0 |
32 |
17 |
827 |
369 |
22 |
0 |
0 |
| ODI |
0 |
18 |
4 |
81 |
1021 |
287 |
0 |
0 |
| CDI |
0 |
15 |
0 |
26 |
171 |
3574 |
184 |
0 |
| VCDI |
0 |
11 |
0 |
20 |
40 |
2075 |
7787 |
1120 |
|
...date precedes bulletin
|
Date: 2024-09-26:
| 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 |
36242 |
5870 |
77 |
65 |
21 |
0 |
0 |
0 |
| OW |
43 |
590 |
194 |
318 |
70 |
0 |
0 |
0 |
| VODI |
0 |
75 |
99 |
706 |
392 |
3 |
0 |
0 |
| ODI |
0 |
9 |
1 |
132 |
789 |
318 |
2 |
0 |
| CDI |
0 |
21 |
0 |
18 |
378 |
2715 |
92 |
0 |
| VCDI |
0 |
5 |
0 |
20 |
32 |
3220 |
5809 |
2905 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
36240 |
5868 |
91 |
99 |
15 |
0 |
0 |
0 |
| OW |
45 |
608 |
180 |
274 |
72 |
0 |
0 |
0 |
| VODI |
0 |
61 |
95 |
648 |
329 |
4 |
0 |
0 |
| ODI |
0 |
7 |
5 |
196 |
815 |
229 |
2 |
0 |
| CDI |
0 |
22 |
0 |
24 |
418 |
2873 |
130 |
0 |
| VCDI |
0 |
4 |
0 |
18 |
33 |
3150 |
5771 |
2905 |
|
Date: 2024-09-28:
| 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 |
35785 |
6160 |
85 |
110 |
22 |
0 |
0 |
0 |
| OW |
56 |
458 |
195 |
555 |
87 |
0 |
0 |
0 |
| VODI |
0 |
86 |
64 |
525 |
659 |
9 |
0 |
0 |
| ODI |
0 |
37 |
8 |
113 |
729 |
405 |
0 |
0 |
| CDI |
0 |
10 |
0 |
41 |
488 |
2289 |
168 |
0 |
| VCDI |
0 |
14 |
0 |
0 |
29 |
3225 |
6317 |
2502 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
35797 |
6108 |
142 |
167 |
16 |
0 |
0 |
0 |
| OW |
44 |
472 |
119 |
495 |
107 |
0 |
0 |
0 |
| VODI |
0 |
118 |
77 |
475 |
549 |
11 |
0 |
0 |
| ODI |
0 |
41 |
13 |
164 |
750 |
315 |
0 |
0 |
| CDI |
0 |
12 |
1 |
42 |
548 |
2428 |
172 |
0 |
| VCDI |
0 |
14 |
0 |
1 |
44 |
3174 |
6313 |
2502 |
|
Date: 2024-09-30:
| 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 |
35997 |
5925 |
53 |
39 |
0 |
0 |
0 |
0 |
| OW |
11 |
491 |
284 |
281 |
39 |
0 |
0 |
0 |
| VODI |
0 |
15 |
22 |
828 |
226 |
20 |
0 |
0 |
| ODI |
0 |
4 |
0 |
64 |
947 |
171 |
1 |
0 |
| CDI |
0 |
13 |
0 |
11 |
278 |
1502 |
35 |
0 |
| VCDI |
0 |
9 |
0 |
0 |
59 |
2895 |
8672 |
2339 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
35980 |
5345 |
61 |
64 |
35 |
0 |
0 |
0 |
| OW |
28 |
864 |
160 |
368 |
100 |
45 |
0 |
0 |
| VODI |
0 |
190 |
112 |
536 |
401 |
100 |
0 |
0 |
| ODI |
0 |
29 |
23 |
199 |
655 |
298 |
19 |
0 |
| CDI |
0 |
15 |
3 |
49 |
248 |
1504 |
556 |
0 |
| VCDI |
0 |
14 |
0 |
7 |
110 |
2641 |
8133 |
2339 |
|
Date: 2024-10-02:
| 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 |
35685 |
6110 |
66 |
86 |
11 |
0 |
0 |
0 |
| OW |
37 |
595 |
191 |
278 |
84 |
10 |
0 |
0 |
| VODI |
0 |
34 |
77 |
620 |
250 |
71 |
0 |
0 |
| ODI |
0 |
9 |
0 |
122 |
624 |
158 |
2 |
0 |
| CDI |
0 |
10 |
0 |
21 |
333 |
959 |
106 |
0 |
| VCDI |
0 |
2 |
1 |
10 |
101 |
3649 |
8288 |
2631 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
35662 |
5361 |
34 |
6 |
0 |
0 |
0 |
0 |
| OW |
60 |
1117 |
143 |
336 |
135 |
90 |
6 |
0 |
| VODI |
0 |
238 |
139 |
562 |
346 |
103 |
44 |
0 |
| ODI |
0 |
16 |
16 |
178 |
563 |
227 |
49 |
0 |
| CDI |
0 |
20 |
2 |
21 |
192 |
1312 |
256 |
0 |
| VCDI |
0 |
8 |
1 |
34 |
167 |
3115 |
8041 |
2631 |
|
Date: 2024-10-04:
| 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 |
35696 |
6016 |
103 |
79 |
4 |
0 |
0 |
0 |
| OW |
80 |
575 |
291 |
374 |
61 |
5 |
0 |
0 |
| VODI |
0 |
47 |
82 |
712 |
220 |
26 |
0 |
0 |
| ODI |
0 |
15 |
0 |
209 |
553 |
108 |
2 |
0 |
| CDI |
0 |
32 |
2 |
22 |
377 |
662 |
174 |
0 |
| VCDI |
0 |
14 |
1 |
13 |
192 |
2774 |
7651 |
4059 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
35666 |
5135 |
102 |
50 |
0 |
0 |
0 |
0 |
| OW |
110 |
1134 |
226 |
380 |
80 |
34 |
0 |
0 |
| VODI |
0 |
311 |
125 |
627 |
267 |
101 |
2 |
0 |
| ODI |
0 |
36 |
19 |
261 |
469 |
152 |
41 |
0 |
| CDI |
0 |
20 |
2 |
56 |
315 |
583 |
516 |
0 |
| VCDI |
0 |
63 |
5 |
35 |
276 |
2705 |
7268 |
4059 |
|
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