Validation of sea ice concentration - American sector
Bulletin date: 2024-04-11
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-04-05:
| 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 |
5147 |
2400 |
1 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
548 |
56 |
125 |
18 |
0 |
0 |
0 |
| VODI |
0 |
274 |
50 |
96 |
53 |
21 |
0 |
0 |
| ODI |
0 |
44 |
76 |
181 |
60 |
45 |
19 |
12 |
| CDI |
0 |
1 |
10 |
168 |
325 |
231 |
282 |
108 |
| VCDI |
0 |
0 |
0 |
18 |
577 |
2692 |
11188 |
36402 |
|
...date precedes bulletin
|
Date: 2024-04-07:
| 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 |
4957 |
2501 |
21 |
11 |
0 |
0 |
0 |
0 |
| OW |
0 |
533 |
52 |
101 |
36 |
1 |
0 |
0 |
| VODI |
0 |
237 |
86 |
137 |
44 |
40 |
5 |
0 |
| ODI |
0 |
40 |
48 |
232 |
76 |
57 |
44 |
0 |
| CDI |
0 |
0 |
5 |
190 |
455 |
352 |
397 |
59 |
| VCDI |
0 |
0 |
0 |
4 |
467 |
3231 |
10737 |
36075 |
|
...date precedes bulletin
|
Date: 2024-04-09:
| 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 |
4505 |
2705 |
41 |
14 |
0 |
0 |
0 |
0 |
| OW |
0 |
504 |
72 |
231 |
18 |
0 |
0 |
0 |
| VODI |
0 |
41 |
60 |
483 |
228 |
12 |
4 |
0 |
| ODI |
0 |
0 |
0 |
51 |
517 |
56 |
12 |
12 |
| CDI |
0 |
0 |
0 |
0 |
355 |
661 |
194 |
60 |
| VCDI |
0 |
0 |
0 |
0 |
158 |
3295 |
11755 |
35187 |
|
...date precedes bulletin
|
Date: 2024-04-11:
| 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 |
4868 |
2525 |
27 |
21 |
0 |
0 |
0 |
0 |
| OW |
0 |
556 |
54 |
207 |
33 |
0 |
0 |
0 |
| VODI |
0 |
127 |
105 |
352 |
158 |
3 |
1 |
0 |
| ODI |
0 |
0 |
0 |
123 |
357 |
88 |
29 |
1 |
| CDI |
0 |
0 |
0 |
0 |
352 |
624 |
534 |
20 |
| VCDI |
0 |
0 |
0 |
0 |
216 |
3884 |
11967 |
33999 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
4868 |
2591 |
36 |
32 |
0 |
0 |
0 |
0 |
| OW |
0 |
470 |
47 |
231 |
36 |
0 |
0 |
0 |
| VODI |
0 |
147 |
103 |
309 |
167 |
5 |
2 |
0 |
| ODI |
0 |
0 |
0 |
130 |
326 |
99 |
27 |
3 |
| CDI |
0 |
0 |
0 |
1 |
369 |
654 |
556 |
21 |
| VCDI |
0 |
0 |
0 |
0 |
218 |
3841 |
11946 |
33996 |
|
Date: 2024-04-13:
| 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 |
4866 |
2450 |
10 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
642 |
86 |
157 |
14 |
0 |
0 |
0 |
| VODI |
0 |
210 |
65 |
375 |
174 |
25 |
2 |
0 |
| ODI |
0 |
0 |
0 |
156 |
331 |
109 |
47 |
0 |
| CDI |
0 |
0 |
0 |
9 |
423 |
695 |
452 |
21 |
| VCDI |
0 |
0 |
0 |
27 |
325 |
4354 |
10994 |
34212 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
4866 |
2529 |
18 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
547 |
78 |
196 |
8 |
0 |
0 |
0 |
| VODI |
0 |
226 |
65 |
331 |
182 |
27 |
3 |
0 |
| ODI |
0 |
0 |
0 |
159 |
319 |
126 |
65 |
0 |
| CDI |
0 |
0 |
0 |
6 |
438 |
728 |
422 |
17 |
| VCDI |
0 |
0 |
0 |
29 |
320 |
4302 |
11005 |
34216 |
|
Date: 2024-04-15:
| 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 |
5219 |
2535 |
11 |
9 |
0 |
0 |
0 |
0 |
| OW |
0 |
779 |
172 |
153 |
7 |
0 |
0 |
0 |
| VODI |
0 |
2 |
9 |
504 |
168 |
10 |
0 |
0 |
| ODI |
0 |
0 |
2 |
51 |
562 |
76 |
0 |
0 |
| CDI |
0 |
0 |
0 |
66 |
442 |
740 |
87 |
5 |
| VCDI |
0 |
0 |
0 |
160 |
568 |
2953 |
7093 |
38848 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
5219 |
2309 |
14 |
26 |
0 |
0 |
0 |
0 |
| OW |
0 |
599 |
65 |
130 |
43 |
0 |
0 |
0 |
| VODI |
0 |
396 |
72 |
208 |
126 |
61 |
0 |
0 |
| ODI |
0 |
12 |
37 |
274 |
218 |
157 |
17 |
0 |
| CDI |
0 |
0 |
6 |
95 |
698 |
432 |
238 |
17 |
| VCDI |
0 |
0 |
0 |
210 |
662 |
3129 |
6925 |
38836 |
|
Date: 2024-04-17:
| 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 |
5466 |
2347 |
30 |
10 |
0 |
0 |
0 |
0 |
| OW |
49 |
719 |
110 |
168 |
13 |
2 |
0 |
0 |
| VODI |
11 |
53 |
46 |
365 |
189 |
11 |
0 |
0 |
| ODI |
0 |
9 |
0 |
119 |
307 |
159 |
5 |
0 |
| CDI |
0 |
0 |
0 |
73 |
463 |
839 |
392 |
2 |
| VCDI |
0 |
0 |
0 |
104 |
558 |
2598 |
11191 |
34823 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
5497 |
2196 |
48 |
102 |
24 |
0 |
0 |
0 |
| OW |
29 |
566 |
19 |
64 |
92 |
29 |
0 |
0 |
| VODI |
0 |
343 |
69 |
159 |
82 |
138 |
1 |
0 |
| ODI |
0 |
23 |
50 |
217 |
186 |
195 |
8 |
0 |
| CDI |
0 |
0 |
0 |
132 |
532 |
406 |
226 |
8 |
| VCDI |
0 |
0 |
0 |
165 |
614 |
2841 |
11353 |
34817 |
|
Date: 2024-04-19:
| 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 |
4863 |
2614 |
14 |
18 |
0 |
0 |
0 |
0 |
| OW |
31 |
569 |
93 |
330 |
38 |
0 |
0 |
0 |
| VODI |
0 |
33 |
1 |
241 |
554 |
24 |
0 |
0 |
| ODI |
0 |
4 |
1 |
51 |
241 |
444 |
17 |
0 |
| CDI |
0 |
6 |
4 |
99 |
322 |
762 |
857 |
1 |
| VCDI |
0 |
4 |
12 |
165 |
817 |
3509 |
12462 |
32030 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
4891 |
2709 |
25 |
55 |
4 |
0 |
0 |
0 |
| OW |
3 |
473 |
79 |
204 |
73 |
12 |
7 |
0 |
| VODI |
0 |
37 |
4 |
305 |
436 |
148 |
21 |
2 |
| ODI |
0 |
0 |
0 |
28 |
250 |
409 |
100 |
11 |
| CDI |
0 |
1 |
1 |
49 |
249 |
642 |
732 |
33 |
| VCDI |
0 |
10 |
16 |
263 |
960 |
3528 |
12476 |
31985 |
|
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