Validation of sea ice concentration - American sector
Bulletin date: 2022-12-15
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2022-12-09:
| 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 |
4 |
727 |
38 |
101 |
213 |
66 |
0 |
0 |
| OW |
0 |
352 |
32 |
478 |
668 |
100 |
0 |
0 |
| VODI |
0 |
82 |
9 |
200 |
1106 |
645 |
11 |
0 |
| ODI |
0 |
48 |
4 |
66 |
786 |
904 |
36 |
0 |
| CDI |
0 |
8 |
4 |
37 |
246 |
1103 |
278 |
4 |
| VCDI |
0 |
0 |
0 |
0 |
123 |
3694 |
10519 |
23174 |
|
...date precedes bulletin
|
Date: 2022-12-11:
| 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 |
552 |
8 |
58 |
125 |
60 |
0 |
0 |
| OW |
0 |
331 |
20 |
406 |
526 |
103 |
0 |
0 |
| VODI |
0 |
160 |
21 |
243 |
982 |
340 |
0 |
0 |
| ODI |
0 |
64 |
5 |
109 |
963 |
661 |
3 |
0 |
| CDI |
0 |
33 |
10 |
105 |
855 |
1090 |
152 |
0 |
| VCDI |
0 |
0 |
0 |
16 |
513 |
2919 |
13104 |
21329 |
|
...date precedes bulletin
|
Date: 2022-12-13:
| 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 |
426 |
9 |
87 |
18 |
4 |
0 |
0 |
| OW |
0 |
136 |
16 |
171 |
89 |
13 |
0 |
0 |
| VODI |
0 |
46 |
13 |
199 |
396 |
240 |
0 |
0 |
| ODI |
0 |
16 |
3 |
99 |
1162 |
850 |
0 |
0 |
| CDI |
0 |
0 |
0 |
30 |
1310 |
1627 |
5 |
12 |
| VCDI |
0 |
0 |
0 |
3 |
519 |
4720 |
11850 |
21797 |
|
...date precedes bulletin
|
Date: 2022-12-15:
| 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 |
303 |
16 |
67 |
2 |
0 |
0 |
0 |
| OW |
0 |
154 |
27 |
189 |
90 |
31 |
0 |
0 |
| VODI |
0 |
40 |
11 |
253 |
261 |
286 |
0 |
0 |
| ODI |
0 |
7 |
3 |
126 |
785 |
625 |
0 |
0 |
| CDI |
0 |
0 |
0 |
65 |
763 |
1306 |
2 |
2 |
| VCDI |
0 |
0 |
0 |
30 |
863 |
5248 |
11205 |
23106 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
295 |
19 |
115 |
14 |
2 |
0 |
0 |
| OW |
0 |
160 |
22 |
161 |
89 |
79 |
0 |
0 |
| VODI |
0 |
46 |
13 |
234 |
339 |
315 |
0 |
0 |
| ODI |
0 |
3 |
3 |
132 |
774 |
672 |
0 |
0 |
| CDI |
0 |
0 |
0 |
59 |
639 |
1109 |
3 |
1 |
| VCDI |
0 |
0 |
0 |
29 |
909 |
5319 |
11204 |
23107 |
|
Date: 2022-12-17:
| 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 |
0 |
118 |
9 |
50 |
3 |
0 |
0 |
0 |
| OW |
0 |
183 |
12 |
208 |
148 |
14 |
0 |
0 |
| VODI |
0 |
47 |
11 |
260 |
281 |
254 |
9 |
0 |
| ODI |
0 |
69 |
4 |
195 |
581 |
254 |
200 |
0 |
| CDI |
0 |
23 |
6 |
77 |
546 |
575 |
543 |
0 |
| VCDI |
0 |
0 |
0 |
21 |
340 |
5504 |
11500 |
23821 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
114 |
8 |
103 |
20 |
0 |
0 |
0 |
| OW |
0 |
184 |
11 |
138 |
133 |
24 |
0 |
0 |
| VODI |
0 |
51 |
12 |
255 |
318 |
271 |
48 |
0 |
| ODI |
0 |
66 |
3 |
217 |
621 |
291 |
212 |
0 |
| CDI |
0 |
25 |
8 |
83 |
466 |
497 |
508 |
0 |
| VCDI |
0 |
0 |
0 |
15 |
341 |
5518 |
11484 |
23821 |
|
Date: 2022-12-19:
| 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 |
0 |
31 |
3 |
36 |
0 |
0 |
0 |
0 |
| OW |
0 |
99 |
10 |
79 |
25 |
0 |
0 |
0 |
| VODI |
0 |
67 |
20 |
423 |
372 |
24 |
0 |
0 |
| ODI |
0 |
2 |
2 |
102 |
883 |
219 |
6 |
0 |
| CDI |
0 |
0 |
0 |
13 |
286 |
932 |
176 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
131 |
4958 |
11780 |
25183 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
47 |
3 |
40 |
11 |
0 |
0 |
0 |
| OW |
0 |
82 |
9 |
75 |
113 |
17 |
2 |
0 |
| VODI |
0 |
63 |
15 |
216 |
424 |
175 |
39 |
0 |
| ODI |
0 |
4 |
1 |
179 |
512 |
327 |
75 |
0 |
| CDI |
0 |
3 |
7 |
129 |
394 |
947 |
278 |
0 |
| VCDI |
0 |
0 |
0 |
18 |
243 |
4667 |
11568 |
25183 |
|
Date: 2022-12-21:
| 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 |
0 |
14 |
2 |
32 |
3 |
0 |
0 |
0 |
| OW |
0 |
47 |
8 |
75 |
18 |
0 |
0 |
0 |
| VODI |
0 |
61 |
13 |
214 |
300 |
17 |
0 |
0 |
| ODI |
0 |
4 |
2 |
137 |
760 |
378 |
0 |
0 |
| CDI |
0 |
0 |
0 |
26 |
314 |
829 |
137 |
15 |
| VCDI |
0 |
0 |
0 |
13 |
201 |
3263 |
10900 |
28083 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
11 |
1 |
30 |
9 |
0 |
0 |
0 |
| OW |
0 |
42 |
8 |
84 |
37 |
10 |
0 |
0 |
| VODI |
0 |
65 |
12 |
205 |
340 |
185 |
8 |
3 |
| ODI |
0 |
8 |
3 |
76 |
544 |
380 |
96 |
81 |
| CDI |
0 |
0 |
1 |
75 |
346 |
583 |
357 |
289 |
| VCDI |
0 |
0 |
0 |
27 |
320 |
3329 |
10576 |
27725 |
|
Date: 2022-12-23:
| 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 |
0 |
6 |
1 |
10 |
0 |
0 |
0 |
0 |
| OW |
0 |
16 |
2 |
64 |
27 |
0 |
0 |
0 |
| VODI |
0 |
4 |
5 |
139 |
87 |
17 |
0 |
0 |
| ODI |
0 |
3 |
3 |
98 |
540 |
151 |
12 |
0 |
| CDI |
0 |
0 |
0 |
57 |
461 |
879 |
93 |
0 |
| VCDI |
0 |
0 |
0 |
13 |
182 |
2680 |
10714 |
29602 |
|
|
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 |
8 |
4 |
0 |
0 |
0 |
| OW |
0 |
13 |
3 |
71 |
41 |
0 |
0 |
0 |
| VODI |
0 |
11 |
7 |
159 |
194 |
41 |
27 |
0 |
| ODI |
0 |
1 |
1 |
86 |
431 |
330 |
128 |
53 |
| CDI |
0 |
0 |
0 |
24 |
370 |
673 |
279 |
252 |
| VCDI |
0 |
0 |
0 |
33 |
257 |
2683 |
10385 |
29297 |
|
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