Validation of sea ice concentration - American sector
Bulletin date: 2022-12-22
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2022-12-16:
| 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 |
166 |
8 |
81 |
3 |
0 |
0 |
0 |
| OW |
0 |
162 |
13 |
249 |
102 |
15 |
1 |
0 |
| VODI |
0 |
40 |
15 |
253 |
267 |
251 |
26 |
0 |
| ODI |
0 |
61 |
7 |
174 |
628 |
558 |
19 |
0 |
| CDI |
0 |
7 |
6 |
65 |
570 |
1195 |
12 |
0 |
| VCDI |
0 |
0 |
0 |
13 |
675 |
5640 |
10654 |
23930 |
|
...date precedes bulletin
|
Date: 2022-12-18:
| 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 |
70 |
4 |
66 |
1 |
0 |
0 |
0 |
| OW |
0 |
134 |
12 |
162 |
146 |
15 |
5 |
0 |
| VODI |
0 |
45 |
12 |
169 |
404 |
166 |
87 |
0 |
| ODI |
0 |
55 |
4 |
155 |
440 |
421 |
113 |
0 |
| CDI |
0 |
22 |
7 |
67 |
289 |
871 |
352 |
0 |
| VCDI |
0 |
0 |
0 |
16 |
195 |
4705 |
10751 |
25905 |
|
...date precedes bulletin
|
Date: 2022-12-20:
| 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 |
0 |
16 |
2 |
44 |
3 |
0 |
0 |
0 |
| OW |
0 |
60 |
9 |
85 |
32 |
0 |
0 |
0 |
| VODI |
0 |
41 |
10 |
286 |
434 |
13 |
0 |
0 |
| ODI |
0 |
1 |
1 |
127 |
863 |
284 |
3 |
0 |
| CDI |
0 |
0 |
0 |
10 |
297 |
725 |
154 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
148 |
3622 |
12235 |
26356 |
|
...date precedes bulletin
|
Date: 2022-12-22:
| 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 |
0 |
7 |
1 |
16 |
0 |
0 |
0 |
0 |
| OW |
0 |
18 |
2 |
100 |
29 |
0 |
0 |
0 |
| VODI |
0 |
15 |
3 |
175 |
142 |
21 |
0 |
0 |
| ODI |
0 |
16 |
4 |
106 |
540 |
411 |
38 |
0 |
| CDI |
0 |
1 |
1 |
17 |
370 |
832 |
243 |
21 |
| VCDI |
0 |
0 |
0 |
15 |
117 |
2990 |
11241 |
28374 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
8 |
1 |
35 |
4 |
0 |
0 |
0 |
| OW |
0 |
15 |
2 |
70 |
24 |
0 |
0 |
0 |
| VODI |
0 |
11 |
3 |
181 |
174 |
51 |
0 |
0 |
| ODI |
0 |
21 |
4 |
99 |
517 |
423 |
9 |
0 |
| CDI |
0 |
2 |
1 |
30 |
368 |
825 |
157 |
37 |
| VCDI |
0 |
0 |
0 |
14 |
111 |
2955 |
11356 |
28358 |
|
Date: 2022-12-24:
| 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 |
0 |
8 |
0 |
6 |
0 |
0 |
0 |
0 |
| OW |
0 |
37 |
2 |
39 |
0 |
0 |
0 |
0 |
| VODI |
0 |
94 |
7 |
85 |
17 |
2 |
0 |
0 |
| ODI |
0 |
149 |
32 |
309 |
318 |
49 |
0 |
0 |
| CDI |
0 |
78 |
23 |
230 |
696 |
421 |
4 |
0 |
| VCDI |
0 |
28 |
4 |
47 |
269 |
3444 |
9776 |
29692 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
9 |
0 |
4 |
0 |
0 |
0 |
0 |
| OW |
0 |
33 |
1 |
42 |
0 |
0 |
0 |
0 |
| VODI |
0 |
85 |
8 |
77 |
23 |
2 |
0 |
0 |
| ODI |
0 |
156 |
31 |
257 |
242 |
79 |
0 |
0 |
| CDI |
0 |
48 |
11 |
212 |
699 |
421 |
6 |
0 |
| VCDI |
0 |
63 |
17 |
124 |
336 |
3414 |
9774 |
29692 |
|
Date: 2022-12-26:
| 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 |
0 |
97 |
1 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
107 |
6 |
38 |
8 |
0 |
0 |
0 |
| VODI |
0 |
219 |
28 |
416 |
159 |
0 |
0 |
0 |
| ODI |
0 |
85 |
7 |
269 |
412 |
62 |
0 |
0 |
| CDI |
0 |
3 |
0 |
27 |
456 |
333 |
6 |
6 |
| VCDI |
0 |
0 |
0 |
0 |
410 |
2727 |
10801 |
29183 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
45 |
1 |
8 |
10 |
0 |
0 |
0 |
| OW |
0 |
141 |
8 |
30 |
41 |
0 |
0 |
0 |
| VODI |
0 |
148 |
13 |
187 |
89 |
33 |
0 |
0 |
| ODI |
0 |
128 |
13 |
214 |
252 |
74 |
0 |
0 |
| CDI |
0 |
47 |
7 |
244 |
371 |
248 |
38 |
2 |
| VCDI |
0 |
2 |
0 |
67 |
682 |
2767 |
10769 |
29187 |
|
Date: 2022-12-28:
| 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 |
0 |
16 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
67 |
8 |
54 |
0 |
0 |
0 |
0 |
| VODI |
0 |
52 |
14 |
178 |
117 |
35 |
0 |
0 |
| ODI |
0 |
6 |
2 |
200 |
410 |
135 |
18 |
0 |
| CDI |
0 |
0 |
0 |
26 |
297 |
405 |
182 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
249 |
3272 |
10262 |
29861 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
4 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
38 |
2 |
6 |
1 |
6 |
0 |
0 |
| VODI |
0 |
66 |
15 |
170 |
93 |
83 |
38 |
0 |
| ODI |
0 |
33 |
7 |
159 |
238 |
85 |
52 |
0 |
| CDI |
0 |
0 |
0 |
109 |
400 |
342 |
142 |
10 |
| VCDI |
0 |
0 |
0 |
14 |
341 |
3331 |
10230 |
29851 |
|
Date: 2022-12-30:
| 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 |
0 |
4 |
1 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
19 |
2 |
16 |
13 |
0 |
0 |
0 |
| VODI |
0 |
7 |
4 |
85 |
122 |
6 |
0 |
0 |
| ODI |
0 |
0 |
0 |
114 |
276 |
137 |
3 |
0 |
| CDI |
0 |
0 |
0 |
20 |
408 |
407 |
68 |
15 |
| VCDI |
0 |
0 |
0 |
0 |
72 |
2870 |
9951 |
31244 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
0 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
6 |
1 |
9 |
0 |
0 |
0 |
0 |
| VODI |
0 |
23 |
2 |
49 |
84 |
58 |
24 |
0 |
| ODI |
0 |
1 |
4 |
76 |
185 |
110 |
38 |
0 |
| CDI |
0 |
0 |
0 |
89 |
368 |
310 |
113 |
20 |
| VCDI |
0 |
0 |
0 |
13 |
254 |
2942 |
9847 |
31239 |
|
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