Validation of sea ice concentration - American sector
Bulletin date: 2024-10-10
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
20541 |
6119 |
82 |
49 |
3 |
0 |
0 |
0 |
| OW |
43 |
748 |
168 |
335 |
42 |
7 |
0 |
0 |
| VODI |
0 |
178 |
121 |
484 |
220 |
58 |
0 |
0 |
| ODI |
0 |
14 |
22 |
231 |
390 |
200 |
20 |
0 |
| CDI |
0 |
21 |
3 |
44 |
279 |
691 |
194 |
0 |
| VCDI |
0 |
7 |
2 |
28 |
140 |
2569 |
8667 |
3146 |
|
...date precedes bulletin
|
Date: 2024-10-06:
| 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 |
21001 |
5364 |
53 |
18 |
1 |
0 |
0 |
0 |
| OW |
88 |
861 |
244 |
323 |
34 |
8 |
0 |
0 |
| VODI |
3 |
149 |
102 |
664 |
181 |
56 |
0 |
0 |
| ODI |
0 |
19 |
17 |
328 |
330 |
226 |
12 |
0 |
| CDI |
0 |
24 |
0 |
53 |
328 |
831 |
169 |
0 |
| VCDI |
0 |
27 |
6 |
18 |
115 |
2102 |
7692 |
4419 |
|
...date precedes bulletin
|
Date: 2024-10-08:
| 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 |
19940 |
6526 |
113 |
72 |
0 |
0 |
0 |
0 |
| OW |
0 |
589 |
260 |
399 |
17 |
0 |
0 |
0 |
| VODI |
0 |
66 |
71 |
768 |
293 |
68 |
0 |
0 |
| ODI |
0 |
8 |
7 |
89 |
509 |
378 |
19 |
0 |
| CDI |
0 |
14 |
3 |
10 |
64 |
1193 |
233 |
0 |
| VCDI |
0 |
7 |
0 |
6 |
85 |
1533 |
8410 |
4116 |
|
...date precedes bulletin
|
Date: 2024-10-10:
| 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 |
19729 |
6054 |
153 |
82 |
0 |
0 |
0 |
0 |
| OW |
5 |
520 |
254 |
682 |
38 |
3 |
0 |
0 |
| VODI |
8 |
61 |
48 |
543 |
540 |
91 |
7 |
0 |
| ODI |
2 |
12 |
4 |
75 |
569 |
392 |
100 |
0 |
| CDI |
2 |
19 |
1 |
11 |
105 |
1444 |
676 |
0 |
| VCDI |
2 |
23 |
9 |
29 |
90 |
1584 |
6882 |
5017 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
19733 |
6116 |
234 |
224 |
2 |
0 |
0 |
0 |
| OW |
1 |
467 |
177 |
552 |
73 |
18 |
0 |
0 |
| VODI |
8 |
50 |
45 |
528 |
510 |
98 |
22 |
0 |
| ODI |
2 |
14 |
3 |
79 |
527 |
322 |
98 |
0 |
| CDI |
2 |
17 |
0 |
8 |
136 |
1387 |
643 |
0 |
| VCDI |
2 |
25 |
10 |
31 |
94 |
1689 |
6902 |
5017 |
|
Date: 2024-10-12:
| 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 |
18996 |
5841 |
173 |
233 |
11 |
0 |
0 |
0 |
| OW |
3 |
478 |
167 |
473 |
336 |
66 |
0 |
0 |
| VODI |
3 |
89 |
31 |
238 |
750 |
268 |
1 |
0 |
| ODI |
2 |
22 |
20 |
59 |
384 |
727 |
18 |
0 |
| CDI |
2 |
13 |
13 |
29 |
147 |
1337 |
1226 |
0 |
| VCDI |
0 |
18 |
5 |
35 |
87 |
1947 |
7875 |
3743 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18996 |
5936 |
220 |
377 |
89 |
3 |
0 |
0 |
| OW |
3 |
412 |
122 |
378 |
350 |
96 |
0 |
0 |
| VODI |
3 |
65 |
33 |
183 |
696 |
300 |
5 |
0 |
| ODI |
2 |
17 |
16 |
63 |
333 |
597 |
35 |
0 |
| CDI |
2 |
13 |
13 |
26 |
159 |
1389 |
1162 |
0 |
| VCDI |
0 |
18 |
5 |
40 |
88 |
1960 |
7918 |
3743 |
|
Date: 2024-10-14:
| 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 |
18408 |
5561 |
169 |
218 |
18 |
0 |
0 |
0 |
| OW |
1 |
473 |
129 |
280 |
104 |
3 |
0 |
0 |
| VODI |
0 |
72 |
98 |
447 |
371 |
55 |
75 |
0 |
| ODI |
0 |
5 |
6 |
94 |
564 |
389 |
57 |
0 |
| CDI |
0 |
12 |
0 |
33 |
174 |
1957 |
397 |
0 |
| VCDI |
0 |
2 |
4 |
13 |
65 |
2189 |
8901 |
4522 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18400 |
5668 |
228 |
375 |
149 |
6 |
0 |
0 |
| OW |
9 |
308 |
118 |
353 |
305 |
171 |
0 |
0 |
| VODI |
0 |
96 |
32 |
187 |
437 |
639 |
11 |
0 |
| ODI |
0 |
35 |
17 |
81 |
167 |
680 |
58 |
0 |
| CDI |
0 |
13 |
7 |
59 |
123 |
1112 |
633 |
0 |
| VCDI |
0 |
5 |
4 |
30 |
115 |
1985 |
8728 |
4522 |
|
Date: 2024-10-16:
| 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 |
17450 |
5906 |
135 |
144 |
30 |
0 |
0 |
0 |
| OW |
0 |
464 |
145 |
302 |
134 |
3 |
0 |
0 |
| VODI |
0 |
96 |
100 |
411 |
479 |
67 |
0 |
0 |
| ODI |
0 |
8 |
10 |
170 |
475 |
301 |
3 |
0 |
| CDI |
4 |
15 |
1 |
56 |
309 |
1468 |
364 |
0 |
| VCDI |
0 |
28 |
6 |
14 |
105 |
2560 |
9801 |
4302 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17450 |
5536 |
126 |
201 |
60 |
7 |
0 |
0 |
| OW |
0 |
810 |
146 |
326 |
286 |
83 |
3 |
0 |
| VODI |
0 |
102 |
107 |
394 |
561 |
439 |
131 |
0 |
| ODI |
0 |
19 |
5 |
114 |
245 |
379 |
257 |
0 |
| CDI |
4 |
10 |
7 |
32 |
158 |
834 |
455 |
0 |
| VCDI |
0 |
40 |
6 |
30 |
222 |
2657 |
9322 |
4302 |
|
Date: 2024-10-18:
| 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 |
15838 |
6280 |
131 |
156 |
39 |
0 |
0 |
0 |
| OW |
4 |
660 |
158 |
295 |
216 |
41 |
0 |
0 |
| VODI |
0 |
148 |
112 |
342 |
368 |
209 |
4 |
0 |
| ODI |
0 |
9 |
10 |
119 |
325 |
471 |
11 |
0 |
| CDI |
0 |
13 |
1 |
33 |
376 |
1116 |
251 |
0 |
| VCDI |
0 |
3 |
7 |
43 |
90 |
2807 |
10771 |
4409 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15842 |
5817 |
108 |
156 |
67 |
5 |
0 |
0 |
| OW |
0 |
974 |
144 |
253 |
205 |
66 |
3 |
0 |
| VODI |
0 |
272 |
132 |
408 |
586 |
557 |
77 |
0 |
| ODI |
0 |
24 |
26 |
83 |
210 |
755 |
239 |
0 |
| CDI |
0 |
14 |
1 |
34 |
142 |
527 |
737 |
4 |
| VCDI |
0 |
12 |
8 |
54 |
204 |
2734 |
9981 |
4405 |
|
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