Validation of sea ice concentration - American sector
Bulletin date: 2021-12-02
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2021-11-26:
| 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 |
5607 |
2238 |
11 |
17 |
0 |
0 |
7 |
8 |
| OW |
25 |
319 |
5 |
42 |
1 |
0 |
1 |
6 |
| VODI |
25 |
266 |
11 |
106 |
38 |
10 |
0 |
10 |
| ODI |
7 |
34 |
10 |
106 |
134 |
37 |
0 |
1 |
| CDI |
0 |
0 |
0 |
57 |
272 |
65 |
4 |
7 |
| VCDI |
0 |
0 |
0 |
9 |
385 |
2578 |
5807 |
27600 |
|
...date precedes bulletin
|
Date: 2021-11-28:
| 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 |
5080 |
2610 |
8 |
24 |
0 |
1 |
0 |
0 |
| OW |
36 |
265 |
4 |
31 |
0 |
22 |
2 |
0 |
| VODI |
20 |
246 |
15 |
123 |
16 |
1 |
4 |
0 |
| ODI |
8 |
96 |
11 |
76 |
53 |
20 |
2 |
0 |
| CDI |
3 |
0 |
1 |
64 |
222 |
105 |
1 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
463 |
1942 |
7560 |
26730 |
|
...date precedes bulletin
|
Date: 2021-11-30:
| 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 |
4575 |
3144 |
8 |
64 |
0 |
0 |
0 |
0 |
| OW |
20 |
168 |
11 |
105 |
21 |
0 |
0 |
0 |
| VODI |
0 |
82 |
3 |
110 |
123 |
0 |
0 |
0 |
| ODI |
0 |
14 |
4 |
69 |
122 |
2 |
0 |
0 |
| CDI |
0 |
0 |
0 |
11 |
212 |
102 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
351 |
2080 |
8436 |
26029 |
|
...date precedes bulletin
|
Date: 2021-12-02:
| 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 |
4093 |
3305 |
15 |
51 |
3 |
0 |
0 |
0 |
| OW |
24 |
243 |
7 |
91 |
12 |
0 |
0 |
0 |
| VODI |
0 |
135 |
9 |
120 |
58 |
0 |
0 |
0 |
| ODI |
0 |
37 |
5 |
74 |
138 |
0 |
0 |
0 |
| CDI |
0 |
3 |
5 |
17 |
208 |
51 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
18 |
577 |
2031 |
5929 |
28607 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
4094 |
3311 |
15 |
62 |
6 |
0 |
0 |
0 |
| OW |
23 |
224 |
4 |
54 |
9 |
0 |
0 |
0 |
| VODI |
0 |
144 |
10 |
106 |
21 |
0 |
0 |
0 |
| ODI |
0 |
39 |
8 |
106 |
82 |
0 |
0 |
0 |
| CDI |
0 |
5 |
4 |
25 |
241 |
32 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
18 |
637 |
2050 |
5929 |
28607 |
|
Date: 2021-12-04:
| 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 |
3028 |
3795 |
37 |
153 |
12 |
0 |
0 |
0 |
| OW |
21 |
209 |
16 |
82 |
75 |
0 |
0 |
0 |
| VODI |
2 |
77 |
12 |
177 |
95 |
15 |
0 |
0 |
| ODI |
0 |
13 |
7 |
112 |
189 |
44 |
0 |
0 |
| CDI |
0 |
12 |
2 |
64 |
400 |
145 |
10 |
7 |
| VCDI |
0 |
0 |
0 |
47 |
842 |
4315 |
6092 |
25759 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
3040 |
3802 |
37 |
149 |
20 |
0 |
0 |
0 |
| OW |
10 |
189 |
13 |
78 |
79 |
0 |
0 |
0 |
| VODI |
1 |
84 |
14 |
127 |
88 |
27 |
0 |
0 |
| ODI |
0 |
21 |
9 |
138 |
126 |
44 |
0 |
0 |
| CDI |
0 |
10 |
1 |
91 |
369 |
131 |
4 |
4 |
| VCDI |
0 |
0 |
0 |
52 |
931 |
4317 |
6098 |
25762 |
|
Date: 2021-12-06:
| 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 |
1680 |
4181 |
58 |
343 |
68 |
0 |
0 |
0 |
| OW |
1 |
82 |
13 |
203 |
113 |
0 |
0 |
0 |
| VODI |
0 |
19 |
1 |
68 |
380 |
20 |
0 |
0 |
| ODI |
0 |
7 |
2 |
29 |
557 |
56 |
0 |
0 |
| CDI |
0 |
7 |
1 |
18 |
622 |
280 |
38 |
3 |
| VCDI |
0 |
0 |
0 |
75 |
966 |
3131 |
8216 |
24628 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1679 |
4035 |
61 |
454 |
134 |
0 |
0 |
0 |
| OW |
2 |
182 |
10 |
129 |
193 |
24 |
0 |
0 |
| VODI |
0 |
47 |
0 |
29 |
322 |
86 |
0 |
0 |
| ODI |
0 |
23 |
3 |
18 |
277 |
111 |
1 |
0 |
| CDI |
0 |
9 |
1 |
26 |
425 |
187 |
42 |
3 |
| VCDI |
0 |
0 |
0 |
80 |
1355 |
3079 |
8211 |
24628 |
|
Date: 2021-12-08:
| 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 |
877 |
3938 |
64 |
404 |
295 |
7 |
0 |
0 |
| OW |
0 |
353 |
15 |
145 |
195 |
24 |
0 |
0 |
| VODI |
0 |
65 |
11 |
78 |
231 |
66 |
0 |
0 |
| ODI |
0 |
0 |
0 |
22 |
203 |
145 |
1 |
0 |
| CDI |
0 |
0 |
0 |
40 |
171 |
508 |
46 |
6 |
| VCDI |
0 |
0 |
0 |
24 |
600 |
4022 |
7256 |
26054 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
877 |
3856 |
59 |
414 |
257 |
27 |
0 |
0 |
| OW |
0 |
289 |
18 |
143 |
308 |
46 |
0 |
0 |
| VODI |
0 |
182 |
8 |
75 |
232 |
105 |
0 |
0 |
| ODI |
0 |
29 |
5 |
9 |
166 |
172 |
26 |
0 |
| CDI |
0 |
0 |
0 |
34 |
114 |
333 |
105 |
12 |
| VCDI |
0 |
0 |
0 |
38 |
618 |
4089 |
7172 |
26048 |
|
Date: 2021-12-10:
| 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 |
877 |
3716 |
48 |
244 |
147 |
0 |
0 |
0 |
| OW |
1 |
404 |
22 |
219 |
222 |
0 |
0 |
0 |
| VODI |
0 |
215 |
13 |
190 |
179 |
7 |
0 |
0 |
| ODI |
0 |
37 |
8 |
107 |
304 |
13 |
0 |
0 |
| CDI |
0 |
0 |
0 |
40 |
429 |
56 |
1 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
498 |
3207 |
7326 |
27330 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
875 |
3586 |
56 |
328 |
181 |
2 |
0 |
0 |
| OW |
1 |
398 |
13 |
167 |
247 |
10 |
0 |
0 |
| VODI |
2 |
313 |
12 |
220 |
218 |
9 |
0 |
0 |
| ODI |
0 |
54 |
5 |
67 |
375 |
13 |
0 |
0 |
| CDI |
0 |
21 |
5 |
18 |
268 |
40 |
2 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
490 |
3209 |
7325 |
27330 |
|
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