Validation of sea ice concentration - American sector
Bulletin date: 2025-01-09
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
133 |
1514 |
106 |
102 |
8 |
0 |
0 |
0 |
| OW |
0 |
392 |
86 |
301 |
203 |
90 |
14 |
0 |
| VODI |
0 |
99 |
72 |
201 |
115 |
128 |
105 |
0 |
| ODI |
0 |
24 |
15 |
134 |
48 |
109 |
147 |
0 |
| CDI |
0 |
20 |
5 |
58 |
48 |
160 |
276 |
0 |
| VCDI |
0 |
14 |
9 |
42 |
126 |
2626 |
12163 |
26173 |
|
...date precedes bulletin
|
Date: 2025-01-05:
| 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 |
360 |
1630 |
67 |
80 |
28 |
1 |
0 |
0 |
| OW |
94 |
283 |
63 |
133 |
132 |
65 |
2 |
0 |
| VODI |
4 |
174 |
47 |
148 |
92 |
142 |
3 |
0 |
| ODI |
0 |
31 |
26 |
124 |
53 |
144 |
5 |
0 |
| CDI |
0 |
30 |
9 |
65 |
39 |
199 |
54 |
0 |
| VCDI |
0 |
22 |
12 |
31 |
94 |
2606 |
8761 |
30013 |
|
...date precedes bulletin
|
Date: 2025-01-07:
| 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 |
131 |
1268 |
93 |
180 |
29 |
0 |
0 |
0 |
| OW |
12 |
152 |
56 |
127 |
200 |
28 |
0 |
0 |
| VODI |
2 |
59 |
24 |
296 |
375 |
108 |
7 |
0 |
| ODI |
0 |
11 |
5 |
60 |
90 |
202 |
23 |
0 |
| CDI |
0 |
0 |
2 |
1 |
1 |
326 |
177 |
3 |
| VCDI |
0 |
0 |
2 |
5 |
120 |
1721 |
11217 |
28753 |
|
...date precedes bulletin
|
Date: 2025-01-09:
| 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 |
17 |
967 |
46 |
87 |
35 |
0 |
0 |
0 |
| OW |
5 |
201 |
60 |
117 |
217 |
35 |
0 |
0 |
| VODI |
1 |
45 |
14 |
84 |
352 |
247 |
4 |
0 |
| ODI |
0 |
0 |
5 |
44 |
279 |
198 |
49 |
0 |
| CDI |
0 |
1 |
7 |
6 |
114 |
371 |
143 |
4 |
| VCDI |
0 |
0 |
0 |
5 |
30 |
1752 |
12355 |
27969 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18 |
1077 |
79 |
123 |
53 |
0 |
0 |
0 |
| OW |
5 |
110 |
36 |
117 |
222 |
35 |
0 |
0 |
| VODI |
0 |
26 |
9 |
58 |
367 |
289 |
15 |
0 |
| ODI |
0 |
0 |
3 |
35 |
254 |
268 |
76 |
0 |
| CDI |
0 |
1 |
5 |
5 |
99 |
327 |
223 |
25 |
| VCDI |
0 |
0 |
0 |
5 |
32 |
1684 |
12237 |
27948 |
|
Date: 2025-01-11:
| 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 |
0 |
731 |
37 |
37 |
17 |
0 |
0 |
0 |
| OW |
0 |
152 |
36 |
102 |
93 |
48 |
22 |
0 |
| VODI |
0 |
55 |
16 |
117 |
185 |
129 |
222 |
0 |
| ODI |
0 |
15 |
11 |
101 |
220 |
93 |
270 |
0 |
| CDI |
0 |
8 |
10 |
43 |
192 |
102 |
480 |
35 |
| VCDI |
0 |
2 |
3 |
10 |
81 |
960 |
10737 |
30494 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
793 |
43 |
62 |
47 |
4 |
0 |
0 |
| OW |
0 |
124 |
39 |
101 |
97 |
55 |
40 |
0 |
| VODI |
0 |
31 |
16 |
117 |
175 |
150 |
304 |
0 |
| ODI |
0 |
5 |
4 |
89 |
225 |
111 |
324 |
0 |
| CDI |
0 |
8 |
8 |
32 |
175 |
110 |
464 |
2 |
| VCDI |
0 |
2 |
3 |
9 |
69 |
902 |
10599 |
30527 |
|
Date: 2025-01-13:
| 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 |
0 |
649 |
57 |
89 |
14 |
1 |
0 |
0 |
| OW |
0 |
98 |
24 |
97 |
78 |
45 |
4 |
0 |
| VODI |
0 |
43 |
19 |
75 |
132 |
125 |
114 |
0 |
| ODI |
0 |
0 |
2 |
38 |
200 |
199 |
386 |
0 |
| CDI |
0 |
1 |
0 |
38 |
311 |
243 |
400 |
87 |
| VCDI |
0 |
30 |
14 |
47 |
164 |
759 |
12927 |
28356 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
573 |
35 |
49 |
9 |
0 |
0 |
0 |
| OW |
0 |
182 |
45 |
104 |
51 |
4 |
0 |
0 |
| VODI |
0 |
35 |
18 |
107 |
171 |
136 |
59 |
0 |
| ODI |
0 |
0 |
4 |
32 |
181 |
194 |
394 |
0 |
| CDI |
0 |
0 |
0 |
40 |
287 |
248 |
417 |
65 |
| VCDI |
0 |
31 |
14 |
52 |
200 |
790 |
12961 |
28378 |
|
Date: 2025-01-15:
| 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 |
0 |
391 |
36 |
13 |
2 |
0 |
0 |
0 |
| OW |
0 |
130 |
46 |
90 |
25 |
1 |
0 |
0 |
| VODI |
0 |
16 |
29 |
110 |
130 |
30 |
3 |
0 |
| ODI |
0 |
0 |
2 |
30 |
112 |
148 |
44 |
0 |
| CDI |
0 |
0 |
0 |
5 |
193 |
512 |
447 |
5 |
| VCDI |
0 |
0 |
0 |
14 |
143 |
1257 |
15164 |
26738 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
308 |
23 |
15 |
5 |
0 |
0 |
0 |
| OW |
0 |
211 |
61 |
76 |
32 |
5 |
0 |
0 |
| VODI |
0 |
18 |
28 |
130 |
141 |
129 |
82 |
0 |
| ODI |
0 |
0 |
1 |
20 |
85 |
159 |
322 |
0 |
| CDI |
0 |
0 |
0 |
8 |
142 |
283 |
700 |
16 |
| VCDI |
0 |
0 |
0 |
13 |
200 |
1372 |
14554 |
26727 |
|
Date: 2025-01-17:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
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