Validation of sea ice concentration - American sector
Bulletin date: 2024-05-02
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-04-26:
| 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 |
6191 |
2012 |
14 |
15 |
0 |
0 |
0 |
0 |
| OW |
0 |
631 |
58 |
70 |
39 |
0 |
0 |
0 |
| VODI |
0 |
181 |
97 |
321 |
219 |
12 |
0 |
0 |
| ODI |
0 |
5 |
10 |
260 |
241 |
115 |
18 |
4 |
| CDI |
0 |
3 |
1 |
154 |
790 |
1154 |
204 |
34 |
| VCDI |
0 |
1 |
1 |
145 |
1350 |
4032 |
15232 |
27617 |
|
...date precedes bulletin
|
Date: 2024-04-28:
| 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 |
6132 |
1918 |
19 |
6 |
0 |
0 |
0 |
0 |
| OW |
1 |
702 |
56 |
80 |
12 |
0 |
0 |
0 |
| VODI |
0 |
253 |
107 |
356 |
212 |
10 |
0 |
0 |
| ODI |
0 |
12 |
22 |
245 |
251 |
136 |
14 |
8 |
| CDI |
0 |
7 |
3 |
95 |
897 |
1426 |
435 |
27 |
| VCDI |
0 |
1 |
3 |
63 |
737 |
3690 |
13842 |
29453 |
|
...date precedes bulletin
|
Date: 2024-04-30:
| 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 |
6358 |
1965 |
10 |
4 |
0 |
0 |
0 |
0 |
| OW |
2 |
928 |
107 |
67 |
6 |
0 |
0 |
0 |
| VODI |
0 |
45 |
119 |
430 |
125 |
8 |
14 |
6 |
| ODI |
0 |
0 |
0 |
134 |
516 |
154 |
58 |
11 |
| CDI |
0 |
0 |
0 |
96 |
885 |
1670 |
537 |
10 |
| VCDI |
0 |
0 |
0 |
52 |
554 |
3286 |
13971 |
29103 |
|
...date precedes bulletin
|
Date: 2024-05-02:
| 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 |
7004 |
1371 |
8 |
8 |
1 |
0 |
0 |
0 |
| OW |
83 |
938 |
40 |
89 |
37 |
4 |
2 |
0 |
| VODI |
0 |
108 |
107 |
363 |
218 |
27 |
22 |
4 |
| ODI |
0 |
13 |
5 |
171 |
474 |
124 |
43 |
4 |
| CDI |
0 |
18 |
17 |
158 |
1066 |
1481 |
506 |
28 |
| VCDI |
0 |
1 |
1 |
60 |
718 |
3121 |
13305 |
29483 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6993 |
1472 |
10 |
19 |
4 |
0 |
0 |
0 |
| OW |
94 |
846 |
49 |
99 |
39 |
5 |
2 |
0 |
| VODI |
0 |
94 |
94 |
343 |
220 |
37 |
23 |
5 |
| ODI |
0 |
19 |
7 |
172 |
474 |
120 |
38 |
4 |
| CDI |
0 |
17 |
18 |
156 |
1079 |
1474 |
505 |
28 |
| VCDI |
0 |
1 |
0 |
60 |
698 |
3121 |
13310 |
29482 |
|
Date: 2024-05-04:
| 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 |
7097 |
1355 |
11 |
41 |
2 |
0 |
0 |
0 |
| OW |
4 |
945 |
96 |
194 |
31 |
0 |
0 |
0 |
| VODI |
0 |
151 |
99 |
439 |
216 |
22 |
4 |
0 |
| ODI |
0 |
39 |
32 |
245 |
472 |
64 |
14 |
0 |
| CDI |
0 |
72 |
32 |
278 |
1676 |
882 |
321 |
2 |
| VCDI |
0 |
236 |
44 |
475 |
1558 |
3851 |
12650 |
27581 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7080 |
1483 |
22 |
58 |
4 |
0 |
0 |
0 |
| OW |
21 |
830 |
94 |
201 |
45 |
2 |
0 |
0 |
| VODI |
0 |
130 |
85 |
411 |
240 |
21 |
4 |
0 |
| ODI |
0 |
48 |
35 |
238 |
448 |
73 |
18 |
0 |
| CDI |
0 |
67 |
33 |
281 |
1691 |
919 |
293 |
1 |
| VCDI |
0 |
240 |
45 |
483 |
1527 |
3804 |
12674 |
27582 |
|
Date: 2024-05-06:
| 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 |
6935 |
1915 |
10 |
44 |
7 |
0 |
0 |
0 |
| OW |
0 |
664 |
194 |
184 |
36 |
0 |
0 |
0 |
| VODI |
0 |
62 |
78 |
951 |
202 |
29 |
0 |
0 |
| ODI |
0 |
43 |
22 |
270 |
1037 |
131 |
16 |
0 |
| CDI |
0 |
28 |
22 |
217 |
1031 |
2036 |
187 |
1 |
| VCDI |
0 |
0 |
0 |
93 |
835 |
3426 |
14780 |
25745 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6933 |
1532 |
9 |
57 |
20 |
0 |
0 |
0 |
| OW |
2 |
853 |
111 |
235 |
60 |
1 |
0 |
0 |
| VODI |
0 |
115 |
88 |
490 |
234 |
56 |
1 |
0 |
| ODI |
0 |
64 |
39 |
276 |
405 |
144 |
23 |
0 |
| CDI |
0 |
105 |
39 |
407 |
1223 |
1486 |
503 |
1 |
| VCDI |
0 |
43 |
40 |
294 |
1206 |
3935 |
14456 |
25745 |
|
Date: 2024-05-08:
| 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 |
6901 |
1870 |
19 |
106 |
11 |
0 |
0 |
0 |
| OW |
0 |
621 |
107 |
299 |
99 |
7 |
0 |
0 |
| VODI |
0 |
87 |
105 |
693 |
506 |
41 |
1 |
0 |
| ODI |
0 |
35 |
17 |
204 |
902 |
289 |
10 |
0 |
| CDI |
0 |
30 |
20 |
275 |
1139 |
1320 |
482 |
1 |
| VCDI |
0 |
0 |
0 |
137 |
912 |
3567 |
14999 |
25419 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6900 |
1608 |
9 |
36 |
29 |
0 |
0 |
0 |
| OW |
1 |
657 |
86 |
230 |
45 |
17 |
0 |
0 |
| VODI |
0 |
146 |
62 |
490 |
378 |
24 |
2 |
0 |
| ODI |
0 |
70 |
30 |
274 |
546 |
146 |
22 |
0 |
| CDI |
0 |
133 |
49 |
315 |
1387 |
1346 |
651 |
47 |
| VCDI |
0 |
29 |
32 |
369 |
1184 |
3691 |
14817 |
25373 |
|
Date: 2024-05-10:
| 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 |
6969 |
1907 |
14 |
38 |
0 |
0 |
0 |
0 |
| OW |
0 |
635 |
141 |
262 |
49 |
0 |
0 |
0 |
| VODI |
0 |
103 |
82 |
776 |
457 |
21 |
2 |
0 |
| ODI |
0 |
64 |
23 |
235 |
971 |
195 |
25 |
2 |
| CDI |
0 |
26 |
38 |
320 |
1238 |
1427 |
627 |
70 |
| VCDI |
0 |
0 |
3 |
215 |
1088 |
4203 |
15287 |
23718 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6969 |
1746 |
17 |
37 |
15 |
0 |
0 |
0 |
| OW |
0 |
516 |
104 |
226 |
64 |
12 |
0 |
0 |
| VODI |
0 |
234 |
59 |
425 |
292 |
42 |
1 |
0 |
| ODI |
0 |
79 |
44 |
348 |
494 |
140 |
19 |
1 |
| CDI |
0 |
141 |
46 |
401 |
1748 |
1453 |
369 |
148 |
| VCDI |
0 |
19 |
31 |
409 |
1190 |
4199 |
15552 |
23641 |
|
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