Validation of sea ice concentration - American sector
Bulletin date: 2024-11-21
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-11-15:
| 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 |
8363 |
1660 |
129 |
226 |
98 |
0 |
0 |
0 |
| OW |
96 |
433 |
141 |
348 |
256 |
16 |
0 |
0 |
| VODI |
8 |
116 |
66 |
275 |
269 |
95 |
0 |
0 |
| ODI |
0 |
42 |
21 |
91 |
292 |
247 |
21 |
0 |
| CDI |
0 |
4 |
3 |
30 |
160 |
672 |
146 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
169 |
2072 |
10982 |
18317 |
|
...date precedes bulletin
|
Date: 2024-11-17:
| 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 |
8427 |
1149 |
81 |
169 |
165 |
0 |
0 |
0 |
| OW |
18 |
357 |
120 |
246 |
172 |
30 |
0 |
0 |
| VODI |
2 |
173 |
65 |
329 |
403 |
181 |
3 |
0 |
| ODI |
0 |
69 |
33 |
103 |
280 |
371 |
17 |
0 |
| CDI |
0 |
15 |
17 |
52 |
130 |
683 |
159 |
8 |
| VCDI |
0 |
13 |
30 |
124 |
447 |
2641 |
12588 |
15996 |
|
...date precedes bulletin
|
Date: 2024-11-19:
| 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 |
8482 |
1104 |
37 |
77 |
0 |
0 |
0 |
0 |
| OW |
81 |
460 |
91 |
195 |
58 |
5 |
0 |
0 |
| VODI |
3 |
354 |
74 |
316 |
170 |
33 |
0 |
0 |
| ODI |
0 |
116 |
42 |
157 |
487 |
148 |
0 |
0 |
| CDI |
0 |
53 |
46 |
120 |
481 |
731 |
25 |
0 |
| VCDI |
0 |
29 |
47 |
230 |
521 |
2308 |
12198 |
16587 |
|
...date precedes bulletin
|
Date: 2024-11-21:
| 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 |
8563 |
1012 |
40 |
59 |
14 |
0 |
0 |
0 |
| OW |
60 |
456 |
89 |
178 |
79 |
19 |
1 |
0 |
| VODI |
12 |
205 |
66 |
163 |
284 |
81 |
14 |
0 |
| ODI |
0 |
79 |
31 |
103 |
282 |
402 |
15 |
0 |
| CDI |
0 |
29 |
16 |
87 |
356 |
928 |
72 |
0 |
| VCDI |
0 |
10 |
3 |
83 |
590 |
4921 |
16956 |
9508 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8557 |
1026 |
36 |
92 |
23 |
1 |
0 |
0 |
| OW |
65 |
416 |
83 |
128 |
84 |
11 |
0 |
0 |
| VODI |
13 |
219 |
70 |
169 |
247 |
83 |
14 |
0 |
| ODI |
0 |
82 |
34 |
110 |
319 |
372 |
19 |
0 |
| CDI |
0 |
31 |
19 |
76 |
328 |
919 |
70 |
0 |
| VCDI |
0 |
17 |
3 |
98 |
604 |
4965 |
16955 |
9508 |
|
Date: 2024-11-23:
| 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 |
8528 |
791 |
38 |
77 |
44 |
0 |
0 |
0 |
| OW |
90 |
439 |
80 |
129 |
176 |
11 |
0 |
0 |
| VODI |
19 |
154 |
65 |
188 |
179 |
110 |
22 |
0 |
| ODI |
0 |
85 |
35 |
81 |
225 |
342 |
17 |
0 |
| CDI |
0 |
15 |
9 |
69 |
249 |
861 |
40 |
0 |
| VCDI |
0 |
9 |
3 |
12 |
218 |
3288 |
11618 |
17550 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8528 |
839 |
36 |
73 |
102 |
0 |
0 |
0 |
| OW |
89 |
369 |
71 |
107 |
124 |
7 |
0 |
0 |
| VODI |
20 |
168 |
69 |
200 |
155 |
109 |
14 |
0 |
| ODI |
0 |
69 |
35 |
95 |
216 |
312 |
28 |
0 |
| CDI |
0 |
24 |
16 |
67 |
255 |
867 |
59 |
0 |
| VCDI |
0 |
24 |
3 |
14 |
239 |
3317 |
11596 |
17550 |
|
Date: 2024-11-25:
| 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 |
6789 |
2368 |
43 |
17 |
4 |
0 |
0 |
0 |
| OW |
1 |
331 |
71 |
92 |
57 |
2 |
0 |
0 |
| VODI |
0 |
129 |
88 |
265 |
284 |
27 |
5 |
0 |
| ODI |
0 |
17 |
14 |
97 |
360 |
126 |
29 |
0 |
| CDI |
0 |
3 |
2 |
14 |
159 |
888 |
134 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
76 |
2063 |
10365 |
20941 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6789 |
2323 |
34 |
35 |
71 |
0 |
0 |
0 |
| OW |
1 |
319 |
83 |
115 |
131 |
15 |
0 |
0 |
| VODI |
0 |
127 |
62 |
170 |
261 |
97 |
36 |
0 |
| ODI |
0 |
38 |
21 |
100 |
199 |
181 |
56 |
0 |
| CDI |
0 |
18 |
12 |
48 |
139 |
628 |
196 |
0 |
| VCDI |
0 |
23 |
6 |
22 |
139 |
2185 |
10245 |
20941 |
|
Date: 2024-11-27:
| 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 |
6374 |
2158 |
45 |
63 |
9 |
0 |
0 |
0 |
| OW |
118 |
444 |
30 |
80 |
57 |
25 |
0 |
0 |
| VODI |
1 |
119 |
68 |
212 |
156 |
156 |
16 |
0 |
| ODI |
0 |
15 |
14 |
77 |
204 |
249 |
44 |
0 |
| CDI |
0 |
12 |
7 |
22 |
103 |
584 |
158 |
0 |
| VCDI |
0 |
11 |
11 |
28 |
48 |
1586 |
12164 |
20398 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6462 |
2147 |
37 |
48 |
34 |
26 |
0 |
0 |
| OW |
31 |
343 |
26 |
61 |
92 |
52 |
3 |
0 |
| VODI |
0 |
177 |
60 |
202 |
177 |
222 |
78 |
0 |
| ODI |
0 |
45 |
25 |
88 |
119 |
238 |
35 |
0 |
| CDI |
0 |
29 |
8 |
28 |
81 |
499 |
132 |
0 |
| VCDI |
0 |
18 |
19 |
55 |
74 |
1563 |
12134 |
20398 |
|
Date: 2024-11-29:
| 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 |
6576 |
1635 |
20 |
25 |
1 |
0 |
0 |
0 |
| OW |
149 |
623 |
28 |
69 |
39 |
25 |
0 |
0 |
| VODI |
1 |
239 |
63 |
116 |
136 |
116 |
4 |
0 |
| ODI |
0 |
23 |
13 |
57 |
204 |
231 |
38 |
0 |
| CDI |
0 |
11 |
7 |
28 |
206 |
625 |
140 |
0 |
| VCDI |
0 |
5 |
5 |
35 |
122 |
1917 |
11139 |
21195 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6609 |
1477 |
18 |
42 |
32 |
45 |
2 |
0 |
| OW |
117 |
461 |
8 |
26 |
39 |
79 |
7 |
0 |
| VODI |
0 |
441 |
46 |
83 |
155 |
156 |
37 |
0 |
| ODI |
0 |
120 |
39 |
67 |
143 |
178 |
32 |
0 |
| CDI |
0 |
32 |
20 |
71 |
165 |
385 |
101 |
0 |
| VCDI |
0 |
5 |
5 |
41 |
174 |
2071 |
11142 |
21195 |
|
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