Validation of sea ice concentration - American sector
Bulletin date: 2022-12-08
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2022-12-02:
| 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 |
0 |
4088 |
909 |
169 |
81 |
4 |
0 |
0 |
| OW |
4 |
677 |
348 |
341 |
213 |
41 |
0 |
0 |
| VODI |
12 |
237 |
313 |
345 |
318 |
239 |
18 |
0 |
| ODI |
0 |
100 |
101 |
184 |
198 |
281 |
43 |
0 |
| CDI |
0 |
14 |
43 |
106 |
238 |
480 |
171 |
0 |
| VCDI |
0 |
9 |
20 |
89 |
243 |
2918 |
13913 |
18358 |
|
...date precedes bulletin
|
Date: 2022-12-04:
| 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 |
103 |
2942 |
871 |
92 |
78 |
16 |
0 |
0 |
| OW |
42 |
604 |
694 |
331 |
232 |
126 |
4 |
0 |
| VODI |
10 |
385 |
271 |
462 |
232 |
322 |
52 |
0 |
| ODI |
1 |
132 |
85 |
263 |
262 |
267 |
71 |
0 |
| CDI |
0 |
19 |
33 |
127 |
364 |
466 |
119 |
0 |
| VCDI |
0 |
11 |
13 |
78 |
325 |
4716 |
13178 |
17467 |
|
...date precedes bulletin
|
Date: 2022-12-06:
| 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 |
0 |
1866 |
1368 |
357 |
32 |
0 |
0 |
0 |
| OW |
0 |
617 |
321 |
626 |
264 |
45 |
0 |
0 |
| VODI |
0 |
288 |
252 |
505 |
651 |
190 |
3 |
0 |
| ODI |
0 |
74 |
73 |
172 |
318 |
381 |
176 |
0 |
| CDI |
0 |
48 |
35 |
80 |
184 |
949 |
248 |
7 |
| VCDI |
0 |
15 |
41 |
128 |
619 |
5718 |
17437 |
11778 |
|
...date precedes bulletin
|
Date: 2022-12-08:
| 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 |
881 |
416 |
254 |
219 |
17 |
0 |
0 |
| OW |
0 |
231 |
386 |
514 |
524 |
147 |
0 |
0 |
| VODI |
0 |
100 |
108 |
532 |
856 |
663 |
47 |
0 |
| ODI |
0 |
54 |
18 |
109 |
548 |
661 |
115 |
0 |
| CDI |
0 |
15 |
16 |
41 |
225 |
923 |
374 |
0 |
| VCDI |
0 |
6 |
1 |
54 |
342 |
4231 |
18240 |
13998 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
860 |
498 |
314 |
282 |
51 |
0 |
0 |
| OW |
0 |
253 |
300 |
466 |
541 |
149 |
1 |
0 |
| VODI |
0 |
104 |
121 |
520 |
794 |
658 |
58 |
0 |
| ODI |
0 |
53 |
11 |
111 |
524 |
612 |
87 |
0 |
| CDI |
0 |
11 |
13 |
37 |
263 |
893 |
374 |
0 |
| VCDI |
0 |
6 |
2 |
56 |
310 |
4279 |
18256 |
13998 |
|
Date: 2022-12-10:
| 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 |
363 |
216 |
51 |
115 |
44 |
0 |
0 |
| OW |
0 |
175 |
235 |
391 |
509 |
179 |
0 |
0 |
| VODI |
0 |
97 |
29 |
288 |
804 |
592 |
36 |
0 |
| ODI |
0 |
50 |
21 |
119 |
864 |
679 |
101 |
0 |
| CDI |
0 |
17 |
19 |
83 |
699 |
951 |
306 |
0 |
| VCDI |
0 |
0 |
3 |
7 |
390 |
2870 |
16804 |
17759 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
333 |
227 |
164 |
242 |
61 |
0 |
0 |
| OW |
0 |
182 |
221 |
307 |
453 |
196 |
1 |
0 |
| VODI |
0 |
117 |
33 |
272 |
709 |
567 |
42 |
0 |
| ODI |
0 |
51 |
23 |
109 |
783 |
680 |
123 |
0 |
| CDI |
0 |
19 |
16 |
77 |
775 |
915 |
254 |
0 |
| VCDI |
0 |
0 |
3 |
10 |
419 |
2896 |
16827 |
17759 |
|
Date: 2022-12-12:
| 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 |
234 |
301 |
64 |
12 |
0 |
0 |
0 |
| OW |
0 |
78 |
132 |
177 |
57 |
26 |
0 |
0 |
| VODI |
0 |
48 |
124 |
379 |
347 |
237 |
14 |
0 |
| ODI |
0 |
21 |
27 |
249 |
1219 |
1062 |
12 |
0 |
| CDI |
0 |
10 |
4 |
29 |
781 |
1880 |
270 |
0 |
| VCDI |
0 |
4 |
4 |
18 |
331 |
4961 |
20510 |
12244 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
160 |
217 |
95 |
187 |
192 |
11 |
0 |
| OW |
0 |
104 |
184 |
278 |
314 |
375 |
7 |
0 |
| VODI |
0 |
80 |
113 |
248 |
422 |
739 |
75 |
0 |
| ODI |
0 |
29 |
54 |
136 |
489 |
817 |
133 |
0 |
| CDI |
0 |
16 |
20 |
107 |
810 |
1214 |
327 |
8 |
| VCDI |
0 |
6 |
4 |
52 |
525 |
4829 |
20253 |
12236 |
|
Date: 2022-12-14:
| 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 |
193 |
115 |
123 |
15 |
0 |
0 |
0 |
| OW |
0 |
117 |
105 |
104 |
109 |
17 |
0 |
0 |
| VODI |
0 |
95 |
66 |
156 |
335 |
208 |
1 |
0 |
| ODI |
0 |
19 |
28 |
144 |
995 |
566 |
2 |
0 |
| CDI |
0 |
15 |
6 |
73 |
1363 |
966 |
74 |
17 |
| VCDI |
0 |
3 |
4 |
56 |
643 |
4876 |
15555 |
18702 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
110 |
76 |
90 |
107 |
147 |
0 |
0 |
| OW |
0 |
142 |
167 |
171 |
338 |
195 |
4 |
0 |
| VODI |
0 |
85 |
39 |
123 |
582 |
421 |
7 |
0 |
| ODI |
0 |
68 |
13 |
83 |
650 |
630 |
99 |
0 |
| CDI |
0 |
29 |
17 |
70 |
877 |
988 |
173 |
24 |
| VCDI |
0 |
8 |
12 |
119 |
906 |
4252 |
15349 |
18695 |
|
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 |
145 |
48 |
56 |
9 |
0 |
0 |
0 |
| OW |
0 |
107 |
90 |
180 |
145 |
19 |
1 |
0 |
| VODI |
0 |
47 |
79 |
204 |
208 |
259 |
55 |
0 |
| ODI |
0 |
30 |
81 |
255 |
409 |
632 |
40 |
0 |
| CDI |
0 |
2 |
11 |
112 |
467 |
1199 |
64 |
0 |
| VCDI |
0 |
5 |
8 |
31 |
802 |
5414 |
15237 |
19415 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
84 |
49 |
82 |
60 |
141 |
40 |
0 |
| OW |
0 |
135 |
93 |
173 |
137 |
318 |
32 |
0 |
| VODI |
0 |
81 |
78 |
185 |
282 |
524 |
72 |
0 |
| ODI |
0 |
27 |
50 |
124 |
197 |
636 |
107 |
0 |
| CDI |
0 |
2 |
10 |
138 |
368 |
1110 |
212 |
3 |
| VCDI |
0 |
7 |
37 |
136 |
996 |
4794 |
14934 |
19412 |
|
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