Validation of sea ice concentration - American sector
Bulletin date: 2023-11-30
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-11-24:
| 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 |
4934 |
5226 |
96 |
125 |
55 |
19 |
0 |
0 |
| OW |
34 |
385 |
43 |
110 |
44 |
19 |
0 |
0 |
| VODI |
11 |
170 |
72 |
124 |
104 |
36 |
0 |
0 |
| ODI |
0 |
44 |
17 |
92 |
220 |
149 |
10 |
0 |
| CDI |
0 |
13 |
12 |
41 |
187 |
502 |
65 |
0 |
| VCDI |
0 |
1 |
2 |
14 |
219 |
3421 |
11202 |
18048 |
|
...date precedes bulletin
|
Date: 2023-11-26:
| 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 |
4484 |
5265 |
81 |
109 |
12 |
38 |
2 |
0 |
| OW |
47 |
534 |
71 |
108 |
55 |
15 |
1 |
0 |
| VODI |
8 |
219 |
84 |
126 |
126 |
31 |
0 |
0 |
| ODI |
8 |
69 |
33 |
82 |
154 |
107 |
2 |
0 |
| CDI |
0 |
42 |
17 |
78 |
160 |
364 |
71 |
0 |
| VCDI |
0 |
13 |
17 |
88 |
299 |
3275 |
9815 |
19756 |
|
...date precedes bulletin
|
Date: 2023-11-28:
| 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 |
4258 |
5074 |
139 |
137 |
53 |
30 |
0 |
0 |
| OW |
23 |
428 |
124 |
165 |
83 |
18 |
0 |
0 |
| VODI |
13 |
109 |
70 |
211 |
185 |
88 |
0 |
0 |
| ODI |
0 |
10 |
11 |
76 |
191 |
210 |
5 |
0 |
| CDI |
0 |
0 |
0 |
19 |
182 |
455 |
46 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
237 |
2794 |
11544 |
18876 |
|
...date precedes bulletin
|
Date: 2023-11-30:
| 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 |
2560 |
5433 |
249 |
496 |
121 |
26 |
4 |
0 |
| OW |
41 |
550 |
127 |
199 |
112 |
26 |
3 |
0 |
| VODI |
2 |
146 |
71 |
183 |
183 |
129 |
37 |
0 |
| ODI |
0 |
60 |
27 |
93 |
182 |
261 |
38 |
0 |
| CDI |
0 |
3 |
4 |
59 |
232 |
633 |
95 |
0 |
| VCDI |
0 |
0 |
0 |
8 |
230 |
2398 |
12869 |
17976 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2560 |
5561 |
226 |
374 |
132 |
35 |
5 |
0 |
| OW |
38 |
454 |
165 |
323 |
104 |
19 |
5 |
0 |
| VODI |
5 |
134 |
59 |
188 |
182 |
112 |
20 |
0 |
| ODI |
0 |
39 |
23 |
82 |
195 |
297 |
43 |
0 |
| CDI |
0 |
4 |
5 |
64 |
220 |
604 |
101 |
0 |
| VCDI |
0 |
0 |
0 |
7 |
227 |
2406 |
12872 |
17976 |
|
Date: 2023-12-02:
| 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 |
1527 |
4603 |
396 |
760 |
146 |
22 |
7 |
0 |
| OW |
60 |
995 |
170 |
590 |
196 |
28 |
1 |
0 |
| VODI |
11 |
163 |
43 |
223 |
254 |
220 |
14 |
0 |
| ODI |
0 |
55 |
26 |
93 |
226 |
369 |
38 |
0 |
| CDI |
0 |
10 |
21 |
55 |
171 |
773 |
221 |
0 |
| VCDI |
0 |
0 |
2 |
45 |
342 |
2637 |
13899 |
16454 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1510 |
4888 |
372 |
652 |
145 |
26 |
8 |
0 |
| OW |
68 |
730 |
184 |
684 |
182 |
42 |
1 |
0 |
| VODI |
20 |
155 |
55 |
240 |
285 |
181 |
1 |
0 |
| ODI |
0 |
48 |
26 |
92 |
223 |
381 |
37 |
0 |
| CDI |
0 |
4 |
15 |
52 |
163 |
697 |
194 |
0 |
| VCDI |
0 |
1 |
6 |
46 |
337 |
2722 |
13939 |
16454 |
|
Date: 2023-12-04:
| 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 |
1694 |
4467 |
208 |
395 |
95 |
2 |
22 |
0 |
| OW |
85 |
1100 |
198 |
571 |
96 |
15 |
4 |
0 |
| VODI |
55 |
247 |
89 |
408 |
235 |
76 |
6 |
0 |
| ODI |
2 |
94 |
36 |
121 |
273 |
226 |
30 |
0 |
| CDI |
0 |
29 |
28 |
65 |
239 |
476 |
323 |
0 |
| VCDI |
0 |
1 |
3 |
35 |
211 |
2438 |
14655 |
16513 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1689 |
3916 |
184 |
355 |
88 |
15 |
24 |
0 |
| OW |
100 |
1439 |
169 |
502 |
84 |
12 |
2 |
0 |
| VODI |
42 |
449 |
148 |
504 |
257 |
60 |
6 |
0 |
| ODI |
5 |
96 |
26 |
124 |
283 |
233 |
23 |
0 |
| CDI |
0 |
35 |
30 |
59 |
198 |
486 |
249 |
0 |
| VCDI |
0 |
3 |
5 |
51 |
239 |
2427 |
14736 |
16513 |
|
Date: 2023-12-06:
| 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 |
1801 |
3849 |
245 |
302 |
99 |
40 |
17 |
0 |
| OW |
80 |
1131 |
158 |
397 |
89 |
40 |
4 |
0 |
| VODI |
39 |
442 |
92 |
433 |
304 |
129 |
10 |
0 |
| ODI |
7 |
72 |
22 |
227 |
256 |
238 |
19 |
0 |
| CDI |
0 |
31 |
21 |
61 |
275 |
497 |
174 |
0 |
| VCDI |
0 |
15 |
23 |
72 |
224 |
2126 |
12838 |
18967 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1778 |
3108 |
181 |
256 |
102 |
56 |
17 |
0 |
| OW |
74 |
1410 |
164 |
366 |
96 |
33 |
6 |
0 |
| VODI |
60 |
863 |
140 |
473 |
260 |
148 |
13 |
0 |
| ODI |
15 |
111 |
34 |
247 |
250 |
227 |
30 |
0 |
| CDI |
0 |
36 |
23 |
78 |
253 |
446 |
155 |
0 |
| VCDI |
0 |
12 |
19 |
72 |
286 |
2160 |
12841 |
18967 |
|
Date: 2023-12-08:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
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