Validation of sea ice concentration - American sector
Bulletin date: 2024-12-26
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-12-20:
| 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 |
10659 |
4359 |
154 |
204 |
15 |
0 |
0 |
0 |
| OW |
95 |
626 |
183 |
455 |
88 |
29 |
0 |
0 |
| VODI |
37 |
183 |
52 |
425 |
609 |
181 |
0 |
0 |
| ODI |
0 |
10 |
5 |
149 |
373 |
273 |
2 |
0 |
| CDI |
0 |
0 |
0 |
43 |
337 |
971 |
446 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
208 |
3321 |
8728 |
28005 |
|
...date precedes bulletin
|
Date: 2024-12-22:
| 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 |
9287 |
4167 |
199 |
248 |
6 |
0 |
0 |
0 |
| OW |
42 |
825 |
120 |
464 |
244 |
14 |
0 |
0 |
| VODI |
58 |
210 |
33 |
449 |
546 |
205 |
0 |
0 |
| ODI |
3 |
11 |
0 |
172 |
394 |
566 |
7 |
0 |
| CDI |
0 |
0 |
0 |
42 |
359 |
754 |
503 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
320 |
2335 |
9228 |
29420 |
|
...date precedes bulletin
|
Date: 2024-12-24:
| 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 |
8808 |
3946 |
92 |
144 |
2 |
0 |
0 |
0 |
| OW |
0 |
1137 |
197 |
357 |
37 |
0 |
0 |
0 |
| VODI |
0 |
202 |
99 |
634 |
562 |
10 |
0 |
0 |
| ODI |
0 |
4 |
5 |
134 |
934 |
514 |
4 |
0 |
| CDI |
0 |
9 |
7 |
11 |
368 |
1221 |
55 |
5 |
| VCDI |
0 |
0 |
0 |
0 |
191 |
2757 |
7110 |
31675 |
|
...date precedes bulletin
|
Date: 2024-12-26:
| 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 |
8517 |
3890 |
42 |
37 |
2 |
0 |
0 |
0 |
| OW |
5 |
1112 |
149 |
367 |
47 |
0 |
0 |
0 |
| VODI |
12 |
418 |
73 |
441 |
558 |
75 |
0 |
0 |
| ODI |
7 |
55 |
10 |
190 |
839 |
530 |
0 |
0 |
| CDI |
0 |
3 |
1 |
67 |
753 |
1080 |
128 |
17 |
| VCDI |
0 |
0 |
0 |
0 |
501 |
2563 |
7603 |
31139 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8517 |
4354 |
121 |
176 |
2 |
0 |
0 |
0 |
| OW |
5 |
819 |
101 |
394 |
157 |
6 |
0 |
0 |
| VODI |
13 |
244 |
46 |
323 |
668 |
179 |
0 |
0 |
| ODI |
6 |
59 |
7 |
155 |
795 |
506 |
6 |
0 |
| CDI |
0 |
2 |
0 |
54 |
564 |
1184 |
265 |
36 |
| VCDI |
0 |
0 |
0 |
0 |
514 |
2373 |
7460 |
31120 |
|
Date: 2024-12-28:
| 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 |
8074 |
4104 |
73 |
38 |
0 |
0 |
0 |
0 |
| OW |
22 |
1064 |
148 |
284 |
56 |
1 |
0 |
0 |
| VODI |
40 |
504 |
58 |
669 |
449 |
76 |
0 |
0 |
| ODI |
22 |
82 |
28 |
308 |
692 |
213 |
0 |
0 |
| CDI |
0 |
25 |
12 |
97 |
542 |
1429 |
431 |
7 |
| VCDI |
0 |
1 |
1 |
27 |
193 |
2771 |
7544 |
31146 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8074 |
4599 |
154 |
167 |
22 |
0 |
0 |
0 |
| OW |
26 |
772 |
96 |
378 |
132 |
22 |
0 |
0 |
| VODI |
34 |
307 |
31 |
563 |
500 |
115 |
0 |
0 |
| ODI |
24 |
78 |
27 |
232 |
664 |
309 |
1 |
0 |
| CDI |
0 |
24 |
12 |
76 |
460 |
1209 |
366 |
14 |
| VCDI |
0 |
0 |
0 |
7 |
154 |
2835 |
7608 |
31139 |
|
Date: 2024-12-30:
| 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 |
8983 |
3758 |
55 |
98 |
0 |
0 |
0 |
0 |
| OW |
6 |
1004 |
308 |
492 |
3 |
0 |
0 |
0 |
| VODI |
0 |
93 |
19 |
1080 |
502 |
1 |
0 |
0 |
| ODI |
0 |
2 |
0 |
155 |
1135 |
145 |
0 |
1 |
| CDI |
0 |
1 |
0 |
29 |
371 |
1198 |
22 |
11 |
| VCDI |
0 |
0 |
0 |
29 |
177 |
2921 |
4772 |
33860 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8971 |
3816 |
133 |
245 |
23 |
0 |
0 |
0 |
| OW |
18 |
737 |
125 |
448 |
104 |
0 |
0 |
0 |
| VODI |
0 |
251 |
102 |
658 |
507 |
33 |
0 |
0 |
| ODI |
0 |
44 |
20 |
354 |
618 |
107 |
0 |
0 |
| CDI |
0 |
9 |
2 |
165 |
681 |
639 |
60 |
74 |
| VCDI |
0 |
1 |
0 |
13 |
255 |
3486 |
4734 |
33798 |
|
Date: 2025-01-01:
| 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 |
9065 |
4118 |
105 |
95 |
5 |
0 |
0 |
0 |
| OW |
64 |
831 |
223 |
592 |
136 |
0 |
0 |
0 |
| VODI |
15 |
149 |
66 |
483 |
454 |
153 |
0 |
0 |
| ODI |
0 |
35 |
13 |
190 |
300 |
574 |
4 |
0 |
| CDI |
0 |
24 |
7 |
155 |
113 |
913 |
72 |
12 |
| VCDI |
0 |
12 |
6 |
55 |
190 |
3140 |
8853 |
30009 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9055 |
4173 |
133 |
176 |
30 |
0 |
0 |
0 |
| OW |
76 |
597 |
153 |
268 |
130 |
5 |
0 |
0 |
| VODI |
13 |
262 |
95 |
589 |
349 |
132 |
0 |
0 |
| ODI |
0 |
65 |
15 |
255 |
312 |
257 |
0 |
0 |
| CDI |
0 |
38 |
16 |
176 |
197 |
752 |
42 |
67 |
| VCDI |
0 |
34 |
8 |
106 |
180 |
3634 |
8887 |
29954 |
|
Date: 2025-01-03:
| 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 |
8567 |
4194 |
163 |
278 |
21 |
0 |
0 |
0 |
| OW |
83 |
536 |
128 |
594 |
382 |
51 |
0 |
0 |
| VODI |
8 |
116 |
51 |
383 |
372 |
201 |
54 |
0 |
| ODI |
0 |
26 |
4 |
210 |
194 |
216 |
128 |
0 |
| CDI |
0 |
18 |
2 |
121 |
127 |
338 |
312 |
1 |
| VCDI |
0 |
0 |
0 |
58 |
174 |
3637 |
10751 |
28732 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8578 |
4214 |
168 |
339 |
61 |
0 |
0 |
0 |
| OW |
73 |
425 |
99 |
356 |
189 |
30 |
0 |
0 |
| VODI |
7 |
189 |
64 |
479 |
401 |
177 |
33 |
0 |
| ODI |
0 |
23 |
14 |
244 |
210 |
192 |
88 |
0 |
| CDI |
0 |
35 |
3 |
177 |
198 |
366 |
296 |
3 |
| VCDI |
0 |
4 |
0 |
49 |
211 |
3678 |
10828 |
28730 |
|
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