Validation of sea ice concentration - American sector
Bulletin date: 2024-11-28
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-11-22:
| 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 |
8557 |
880 |
43 |
74 |
37 |
0 |
0 |
0 |
| OW |
69 |
404 |
92 |
133 |
155 |
13 |
0 |
0 |
| VODI |
12 |
188 |
70 |
189 |
217 |
92 |
18 |
0 |
| ODI |
0 |
86 |
38 |
77 |
271 |
358 |
1 |
0 |
| CDI |
0 |
23 |
14 |
83 |
402 |
753 |
56 |
0 |
| VCDI |
0 |
12 |
0 |
49 |
515 |
4342 |
16559 |
10984 |
|
...date precedes bulletin
|
Date: 2024-11-24:
| 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 |
8376 |
821 |
34 |
42 |
38 |
0 |
0 |
0 |
| OW |
65 |
429 |
79 |
138 |
191 |
30 |
0 |
0 |
| VODI |
11 |
182 |
62 |
170 |
169 |
99 |
33 |
0 |
| ODI |
0 |
65 |
41 |
98 |
222 |
296 |
11 |
0 |
| CDI |
0 |
21 |
7 |
47 |
187 |
842 |
84 |
0 |
| VCDI |
0 |
3 |
5 |
9 |
138 |
2500 |
10314 |
20007 |
|
...date precedes bulletin
|
Date: 2024-11-26:
| 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 |
6516 |
2426 |
58 |
62 |
7 |
0 |
0 |
0 |
| OW |
4 |
190 |
61 |
118 |
62 |
22 |
0 |
0 |
| VODI |
0 |
76 |
51 |
244 |
321 |
74 |
16 |
0 |
| ODI |
0 |
17 |
6 |
40 |
386 |
116 |
31 |
0 |
| CDI |
0 |
11 |
7 |
22 |
219 |
622 |
125 |
0 |
| VCDI |
0 |
3 |
4 |
18 |
99 |
1785 |
10762 |
21285 |
|
...date precedes bulletin
|
Date: 2024-11-28:
| 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 |
6186 |
2103 |
29 |
50 |
2 |
0 |
0 |
0 |
| OW |
146 |
595 |
33 |
66 |
60 |
16 |
0 |
0 |
| VODI |
1 |
246 |
87 |
154 |
159 |
56 |
7 |
0 |
| ODI |
0 |
18 |
16 |
111 |
300 |
158 |
25 |
0 |
| CDI |
0 |
15 |
5 |
60 |
207 |
639 |
155 |
0 |
| VCDI |
0 |
6 |
8 |
39 |
162 |
1913 |
10444 |
21589 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6170 |
2142 |
34 |
62 |
5 |
0 |
0 |
0 |
| OW |
162 |
577 |
26 |
60 |
61 |
15 |
0 |
0 |
| VODI |
1 |
215 |
85 |
144 |
125 |
67 |
11 |
0 |
| ODI |
0 |
25 |
16 |
109 |
298 |
171 |
27 |
0 |
| CDI |
0 |
17 |
7 |
59 |
225 |
570 |
141 |
0 |
| VCDI |
0 |
7 |
10 |
46 |
176 |
1959 |
10452 |
21589 |
|
Date: 2024-11-30:
| 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 |
6460 |
1695 |
17 |
20 |
7 |
0 |
0 |
0 |
| OW |
67 |
587 |
54 |
63 |
55 |
37 |
3 |
0 |
| VODI |
0 |
193 |
71 |
104 |
105 |
114 |
55 |
0 |
| ODI |
0 |
16 |
20 |
85 |
95 |
229 |
86 |
0 |
| CDI |
0 |
3 |
0 |
32 |
159 |
620 |
197 |
0 |
| VCDI |
0 |
2 |
3 |
10 |
157 |
1718 |
10284 |
22443 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6450 |
1776 |
30 |
37 |
24 |
7 |
0 |
0 |
| OW |
77 |
538 |
46 |
50 |
47 |
29 |
2 |
0 |
| VODI |
0 |
158 |
60 |
102 |
105 |
75 |
53 |
0 |
| ODI |
0 |
21 |
24 |
71 |
86 |
267 |
91 |
0 |
| CDI |
0 |
1 |
2 |
44 |
156 |
593 |
186 |
0 |
| VCDI |
0 |
2 |
3 |
10 |
160 |
1747 |
10293 |
22443 |
|
Date: 2024-12-02:
| 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 |
5345 |
2351 |
39 |
62 |
0 |
0 |
0 |
0 |
| OW |
0 |
490 |
89 |
151 |
42 |
3 |
0 |
0 |
| VODI |
0 |
76 |
64 |
175 |
135 |
48 |
5 |
0 |
| ODI |
0 |
5 |
3 |
50 |
318 |
164 |
49 |
0 |
| CDI |
0 |
2 |
2 |
2 |
61 |
762 |
219 |
1 |
| VCDI |
0 |
0 |
1 |
7 |
144 |
1658 |
7375 |
25968 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
5345 |
2235 |
69 |
114 |
37 |
18 |
0 |
0 |
| OW |
0 |
579 |
72 |
145 |
81 |
37 |
1 |
0 |
| VODI |
0 |
96 |
44 |
117 |
167 |
73 |
65 |
0 |
| ODI |
0 |
10 |
9 |
57 |
140 |
276 |
95 |
0 |
| CDI |
0 |
4 |
2 |
5 |
119 |
504 |
237 |
0 |
| VCDI |
0 |
0 |
2 |
9 |
156 |
1727 |
7250 |
25969 |
|
Date: 2024-12-04:
| 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 |
4540 |
1946 |
35 |
14 |
0 |
0 |
0 |
0 |
| OW |
5 |
874 |
83 |
205 |
143 |
24 |
0 |
0 |
| VODI |
0 |
145 |
67 |
221 |
342 |
107 |
0 |
0 |
| ODI |
0 |
7 |
2 |
110 |
204 |
127 |
32 |
0 |
| CDI |
0 |
1 |
2 |
10 |
174 |
451 |
241 |
0 |
| VCDI |
0 |
1 |
0 |
22 |
247 |
1833 |
10466 |
23185 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
4541 |
2268 |
35 |
13 |
6 |
9 |
0 |
0 |
| OW |
4 |
562 |
92 |
226 |
143 |
64 |
16 |
0 |
| VODI |
0 |
129 |
50 |
209 |
329 |
115 |
86 |
0 |
| ODI |
0 |
10 |
11 |
76 |
224 |
253 |
82 |
0 |
| CDI |
0 |
3 |
0 |
35 |
161 |
416 |
192 |
0 |
| VCDI |
0 |
2 |
1 |
23 |
247 |
1685 |
10363 |
23185 |
|
Date: 2024-12-06:
| 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 |
3854 |
1848 |
25 |
27 |
17 |
2 |
0 |
0 |
| OW |
66 |
606 |
39 |
117 |
91 |
0 |
0 |
0 |
| VODI |
0 |
416 |
90 |
215 |
289 |
230 |
0 |
0 |
| ODI |
0 |
20 |
12 |
58 |
203 |
511 |
1 |
0 |
| CDI |
0 |
0 |
2 |
26 |
145 |
508 |
197 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
111 |
1553 |
11512 |
23072 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
3878 |
2307 |
37 |
76 |
66 |
2 |
0 |
0 |
| OW |
42 |
401 |
53 |
143 |
149 |
81 |
11 |
0 |
| VODI |
0 |
164 |
59 |
141 |
266 |
383 |
67 |
0 |
| ODI |
0 |
17 |
16 |
66 |
108 |
332 |
76 |
0 |
| CDI |
0 |
1 |
3 |
18 |
190 |
517 |
250 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
77 |
1489 |
11306 |
23072 |
|
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