Validation of sea ice concentration - Asian sector
Bulletin date: 2023-05-25
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-05-19:
| 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 |
391 |
31 |
38 |
10 |
0 |
0 |
0 |
| OW |
0 |
24 |
6 |
28 |
32 |
1 |
0 |
0 |
| VODI |
0 |
14 |
11 |
47 |
72 |
4 |
0 |
0 |
| ODI |
0 |
5 |
8 |
34 |
123 |
36 |
5 |
0 |
| CDI |
0 |
6 |
2 |
41 |
281 |
533 |
139 |
0 |
| VCDI |
0 |
0 |
0 |
17 |
323 |
4365 |
12459 |
12996 |
|
...date precedes bulletin
|
Date: 2023-05-21:
| 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 |
450 |
33 |
55 |
5 |
0 |
0 |
0 |
| OW |
0 |
28 |
17 |
68 |
15 |
0 |
0 |
0 |
| VODI |
0 |
34 |
3 |
98 |
43 |
0 |
0 |
0 |
| ODI |
0 |
4 |
13 |
41 |
118 |
17 |
2 |
0 |
| CDI |
0 |
0 |
5 |
55 |
445 |
399 |
158 |
0 |
| VCDI |
0 |
0 |
0 |
49 |
731 |
4749 |
10757 |
13690 |
|
...date precedes bulletin
|
Date: 2023-05-23:
| 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 |
542 |
76 |
98 |
9 |
0 |
0 |
0 |
| OW |
0 |
3 |
13 |
178 |
11 |
2 |
0 |
0 |
| VODI |
0 |
0 |
3 |
129 |
161 |
12 |
1 |
0 |
| ODI |
0 |
0 |
2 |
81 |
269 |
33 |
15 |
0 |
| CDI |
0 |
0 |
7 |
95 |
429 |
1074 |
231 |
0 |
| VCDI |
0 |
0 |
0 |
14 |
373 |
2692 |
13634 |
11895 |
|
...date precedes bulletin
|
Date: 2023-05-25:
| 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 |
684 |
90 |
161 |
8 |
0 |
0 |
0 |
| OW |
0 |
14 |
13 |
192 |
3 |
2 |
0 |
0 |
| VODI |
0 |
8 |
9 |
127 |
91 |
12 |
1 |
0 |
| ODI |
0 |
10 |
7 |
90 |
259 |
50 |
7 |
0 |
| CDI |
0 |
18 |
21 |
148 |
702 |
1045 |
90 |
0 |
| VCDI |
0 |
0 |
0 |
41 |
543 |
4194 |
14978 |
8464 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
687 |
94 |
193 |
8 |
0 |
0 |
0 |
| OW |
0 |
12 |
9 |
157 |
4 |
3 |
0 |
0 |
| VODI |
0 |
10 |
9 |
121 |
73 |
11 |
1 |
0 |
| ODI |
0 |
8 |
8 |
99 |
220 |
39 |
7 |
0 |
| CDI |
0 |
17 |
20 |
149 |
762 |
1064 |
89 |
0 |
| VCDI |
0 |
0 |
0 |
40 |
539 |
4186 |
14979 |
8464 |
|
Date: 2023-05-27:
| 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 |
1 |
815 |
102 |
200 |
6 |
0 |
0 |
0 |
| OW |
0 |
32 |
20 |
137 |
4 |
7 |
0 |
0 |
| VODI |
0 |
16 |
13 |
143 |
105 |
16 |
2 |
0 |
| ODI |
0 |
18 |
17 |
107 |
273 |
70 |
12 |
0 |
| CDI |
0 |
24 |
32 |
192 |
804 |
1032 |
219 |
0 |
| VCDI |
0 |
0 |
0 |
114 |
1603 |
6084 |
15948 |
3914 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1 |
827 |
104 |
198 |
6 |
1 |
0 |
0 |
| OW |
0 |
18 |
18 |
115 |
3 |
4 |
0 |
0 |
| VODI |
0 |
20 |
11 |
146 |
81 |
18 |
2 |
0 |
| ODI |
0 |
16 |
20 |
116 |
231 |
69 |
15 |
0 |
| CDI |
0 |
24 |
31 |
213 |
799 |
993 |
216 |
0 |
| VCDI |
0 |
0 |
0 |
105 |
1675 |
6124 |
15948 |
3914 |
|
Date: 2023-05-29:
| 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 |
12 |
986 |
120 |
183 |
8 |
0 |
0 |
0 |
| OW |
0 |
56 |
50 |
187 |
10 |
1 |
0 |
0 |
| VODI |
0 |
36 |
20 |
277 |
146 |
19 |
4 |
0 |
| ODI |
0 |
12 |
17 |
138 |
398 |
70 |
28 |
0 |
| CDI |
0 |
3 |
7 |
132 |
712 |
1543 |
372 |
2 |
| VCDI |
0 |
0 |
0 |
84 |
358 |
4714 |
17928 |
3449 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12 |
939 |
100 |
191 |
7 |
0 |
0 |
0 |
| OW |
0 |
40 |
22 |
118 |
9 |
0 |
0 |
0 |
| VODI |
0 |
31 |
23 |
182 |
100 |
31 |
14 |
0 |
| ODI |
0 |
45 |
33 |
132 |
250 |
115 |
71 |
0 |
| CDI |
0 |
36 |
31 |
212 |
617 |
846 |
645 |
2 |
| VCDI |
0 |
2 |
5 |
166 |
649 |
5355 |
17602 |
3449 |
|
Date: 2023-05-31:
| 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 |
21 |
1182 |
120 |
157 |
7 |
1 |
0 |
0 |
| OW |
0 |
64 |
31 |
202 |
22 |
7 |
0 |
0 |
| VODI |
0 |
41 |
44 |
192 |
162 |
34 |
7 |
0 |
| ODI |
0 |
11 |
16 |
186 |
324 |
102 |
36 |
0 |
| CDI |
0 |
4 |
12 |
140 |
713 |
1261 |
434 |
4 |
| VCDI |
0 |
0 |
0 |
113 |
532 |
5168 |
17463 |
3269 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
21 |
1061 |
71 |
106 |
5 |
0 |
0 |
0 |
| OW |
0 |
73 |
45 |
78 |
5 |
5 |
0 |
0 |
| VODI |
0 |
42 |
35 |
198 |
70 |
39 |
22 |
0 |
| ODI |
0 |
65 |
26 |
183 |
211 |
146 |
102 |
1 |
| CDI |
0 |
56 |
30 |
229 |
693 |
821 |
734 |
3 |
| VCDI |
0 |
5 |
16 |
196 |
776 |
5562 |
17082 |
3269 |
|
Date: 2023-06-02:
| 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 |
35 |
1343 |
112 |
148 |
4 |
0 |
0 |
0 |
| OW |
0 |
99 |
36 |
152 |
26 |
0 |
0 |
0 |
| VODI |
0 |
72 |
54 |
239 |
170 |
14 |
23 |
0 |
| ODI |
0 |
25 |
19 |
213 |
314 |
153 |
82 |
0 |
| CDI |
0 |
15 |
14 |
232 |
716 |
1735 |
476 |
4 |
| VCDI |
0 |
0 |
3 |
163 |
588 |
4254 |
18256 |
2293 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
35 |
1166 |
59 |
73 |
5 |
0 |
0 |
0 |
| OW |
0 |
103 |
37 |
54 |
40 |
0 |
6 |
0 |
| VODI |
0 |
77 |
59 |
193 |
78 |
25 |
39 |
0 |
| ODI |
0 |
90 |
29 |
249 |
202 |
187 |
112 |
0 |
| CDI |
0 |
92 |
33 |
369 |
786 |
1259 |
732 |
5 |
| VCDI |
0 |
26 |
21 |
209 |
707 |
4685 |
17948 |
2292 |
|
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