Validation of sea ice concentration - American sector
Bulletin date: 2022-05-12
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2022-05-06:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
13 |
12 |
11 |
8 |
0 |
0 |
0 |
| ODI |
0 |
13 |
23 |
53 |
31 |
28 |
1 |
0 |
| CDI |
0 |
23 |
32 |
121 |
223 |
287 |
237 |
40 |
| VCDI |
0 |
26 |
46 |
281 |
850 |
2107 |
20634 |
20765 |
|
...date precedes bulletin
|
Date: 2022-05-08:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
1 |
1 |
0 |
| VODI |
0 |
2 |
0 |
12 |
4 |
10 |
13 |
0 |
| ODI |
0 |
10 |
12 |
34 |
85 |
135 |
67 |
0 |
| CDI |
0 |
17 |
36 |
156 |
267 |
432 |
364 |
51 |
| VCDI |
0 |
24 |
128 |
438 |
924 |
3916 |
19400 |
19327 |
|
...date precedes bulletin
|
Date: 2022-05-10:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
6 |
5 |
58 |
114 |
80 |
5 |
0 |
| ODI |
0 |
9 |
14 |
58 |
201 |
193 |
43 |
0 |
| CDI |
0 |
28 |
51 |
209 |
518 |
566 |
226 |
33 |
| VCDI |
0 |
87 |
96 |
394 |
2332 |
5822 |
17378 |
17340 |
|
...date precedes bulletin
|
Date: 2022-05-12:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
1 |
7 |
16 |
16 |
10 |
4 |
0 |
| VODI |
0 |
16 |
7 |
55 |
147 |
99 |
41 |
0 |
| ODI |
0 |
21 |
6 |
49 |
145 |
252 |
95 |
0 |
| CDI |
0 |
28 |
41 |
193 |
246 |
861 |
393 |
29 |
| VCDI |
0 |
119 |
91 |
410 |
1044 |
6601 |
16659 |
18164 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
4 |
4 |
1 |
0 |
0 |
0 |
| OW |
0 |
0 |
1 |
12 |
20 |
6 |
0 |
0 |
| VODI |
0 |
15 |
10 |
55 |
137 |
93 |
33 |
0 |
| ODI |
0 |
21 |
2 |
47 |
151 |
245 |
81 |
0 |
| CDI |
0 |
29 |
42 |
202 |
261 |
892 |
343 |
39 |
| VCDI |
0 |
120 |
93 |
403 |
1028 |
6587 |
16735 |
18154 |
|
Date: 2022-05-14:
| 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 |
1 |
0 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
19 |
17 |
27 |
40 |
22 |
13 |
0 |
| VODI |
0 |
25 |
12 |
67 |
112 |
100 |
58 |
0 |
| ODI |
0 |
23 |
15 |
44 |
135 |
180 |
157 |
0 |
| CDI |
0 |
33 |
35 |
199 |
297 |
577 |
783 |
22 |
| VCDI |
0 |
150 |
93 |
353 |
896 |
4601 |
17990 |
18768 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
8 |
13 |
6 |
6 |
0 |
0 |
0 |
| OW |
0 |
12 |
5 |
38 |
23 |
16 |
4 |
0 |
| VODI |
0 |
23 |
10 |
54 |
117 |
95 |
51 |
0 |
| ODI |
0 |
24 |
15 |
47 |
144 |
175 |
148 |
0 |
| CDI |
0 |
34 |
32 |
211 |
304 |
639 |
847 |
33 |
| VCDI |
0 |
150 |
97 |
336 |
886 |
4555 |
17951 |
18757 |
|
Date: 2022-05-16:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
43 |
11 |
10 |
12 |
3 |
0 |
0 |
| VODI |
0 |
22 |
37 |
196 |
108 |
35 |
6 |
0 |
| ODI |
0 |
19 |
35 |
217 |
371 |
221 |
42 |
0 |
| CDI |
0 |
52 |
52 |
299 |
854 |
1477 |
376 |
4 |
| VCDI |
0 |
93 |
108 |
214 |
642 |
3403 |
17321 |
19583 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
11 |
15 |
10 |
16 |
3 |
0 |
0 |
| OW |
0 |
18 |
5 |
34 |
26 |
21 |
3 |
0 |
| VODI |
0 |
26 |
11 |
88 |
156 |
123 |
37 |
0 |
| ODI |
0 |
18 |
27 |
127 |
172 |
134 |
93 |
0 |
| CDI |
0 |
35 |
64 |
346 |
706 |
1132 |
431 |
10 |
| VCDI |
0 |
121 |
121 |
331 |
911 |
3726 |
17181 |
19577 |
|
Date: 2022-05-18:
| 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 |
12 |
8 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
13 |
35 |
73 |
28 |
3 |
0 |
0 |
| VODI |
0 |
16 |
34 |
178 |
256 |
129 |
15 |
0 |
| ODI |
0 |
34 |
40 |
241 |
316 |
286 |
58 |
0 |
| CDI |
0 |
61 |
91 |
399 |
617 |
921 |
970 |
15 |
| VCDI |
0 |
91 |
112 |
315 |
881 |
3090 |
13654 |
22871 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
5 |
8 |
19 |
32 |
0 |
0 |
0 |
| OW |
0 |
15 |
23 |
58 |
57 |
39 |
1 |
0 |
| VODI |
0 |
18 |
33 |
130 |
231 |
127 |
14 |
0 |
| ODI |
0 |
17 |
35 |
109 |
188 |
193 |
71 |
0 |
| CDI |
0 |
49 |
80 |
470 |
587 |
939 |
998 |
27 |
| VCDI |
0 |
123 |
141 |
423 |
1003 |
3131 |
13613 |
22859 |
|
Date: 2022-05-20:
| 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 |
15 |
15 |
26 |
1 |
0 |
0 |
0 |
| OW |
0 |
21 |
26 |
116 |
120 |
41 |
1 |
0 |
| VODI |
0 |
26 |
24 |
250 |
281 |
185 |
108 |
0 |
| ODI |
0 |
40 |
48 |
236 |
277 |
205 |
162 |
0 |
| CDI |
0 |
72 |
123 |
362 |
601 |
578 |
1176 |
56 |
| VCDI |
0 |
185 |
155 |
405 |
720 |
3258 |
13591 |
22360 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
18 |
27 |
57 |
61 |
21 |
0 |
0 |
| OW |
0 |
18 |
17 |
75 |
89 |
72 |
10 |
0 |
| VODI |
0 |
24 |
19 |
146 |
218 |
99 |
94 |
0 |
| ODI |
0 |
27 |
30 |
165 |
201 |
159 |
120 |
0 |
| CDI |
0 |
90 |
115 |
518 |
723 |
836 |
1311 |
85 |
| VCDI |
0 |
182 |
183 |
434 |
708 |
3080 |
13503 |
22331 |
|
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