Validation of sea ice concentration - Asian sector
Bulletin date: 2025-04-24
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-04-18:
| 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 |
331 |
26 |
10 |
0 |
0 |
0 |
0 |
| OW |
0 |
102 |
22 |
51 |
0 |
0 |
0 |
0 |
| VODI |
0 |
33 |
22 |
73 |
10 |
1 |
0 |
3 |
| ODI |
0 |
0 |
9 |
73 |
43 |
29 |
21 |
11 |
| CDI |
0 |
0 |
0 |
10 |
211 |
312 |
298 |
55 |
| VCDI |
0 |
0 |
0 |
0 |
55 |
770 |
11525 |
18990 |
|
...date precedes bulletin
|
Date: 2025-04-20:
| 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 |
236 |
19 |
44 |
0 |
0 |
0 |
0 |
| OW |
0 |
62 |
32 |
61 |
15 |
0 |
0 |
0 |
| VODI |
0 |
24 |
18 |
80 |
25 |
1 |
0 |
0 |
| ODI |
0 |
0 |
2 |
58 |
55 |
31 |
6 |
10 |
| CDI |
0 |
0 |
0 |
4 |
99 |
270 |
162 |
148 |
| VCDI |
0 |
0 |
0 |
0 |
86 |
864 |
8371 |
22313 |
|
...date precedes bulletin
|
Date: 2025-04-22:
| 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 |
69 |
174 |
19 |
44 |
6 |
0 |
0 |
0 |
| OW |
1 |
45 |
52 |
62 |
26 |
0 |
0 |
0 |
| VODI |
0 |
1 |
4 |
98 |
31 |
22 |
2 |
0 |
| ODI |
0 |
0 |
0 |
25 |
99 |
68 |
10 |
9 |
| CDI |
0 |
0 |
0 |
0 |
90 |
587 |
374 |
102 |
| VCDI |
0 |
0 |
0 |
0 |
8 |
733 |
8981 |
21354 |
|
...date precedes bulletin
|
Date: 2025-04-24:
| 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 |
59 |
212 |
15 |
33 |
5 |
0 |
0 |
0 |
| OW |
0 |
79 |
46 |
35 |
22 |
8 |
1 |
0 |
| VODI |
0 |
15 |
25 |
86 |
26 |
20 |
6 |
0 |
| ODI |
0 |
0 |
0 |
36 |
91 |
67 |
29 |
11 |
| CDI |
0 |
0 |
0 |
4 |
141 |
464 |
353 |
88 |
| VCDI |
0 |
0 |
0 |
0 |
191 |
840 |
9228 |
20860 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
59 |
216 |
17 |
34 |
7 |
1 |
0 |
0 |
| OW |
0 |
75 |
45 |
36 |
20 |
8 |
1 |
0 |
| VODI |
0 |
15 |
24 |
80 |
26 |
24 |
12 |
0 |
| ODI |
0 |
0 |
0 |
41 |
97 |
87 |
40 |
18 |
| CDI |
0 |
0 |
0 |
3 |
126 |
461 |
461 |
110 |
| VCDI |
0 |
0 |
0 |
0 |
200 |
818 |
9103 |
20831 |
|
Date: 2025-04-26:
| 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 |
150 |
144 |
11 |
29 |
5 |
0 |
0 |
0 |
| OW |
0 |
134 |
20 |
10 |
24 |
4 |
1 |
0 |
| VODI |
0 |
56 |
40 |
86 |
37 |
6 |
29 |
0 |
| ODI |
0 |
0 |
1 |
63 |
132 |
49 |
63 |
1 |
| CDI |
0 |
0 |
0 |
6 |
296 |
543 |
284 |
25 |
| VCDI |
0 |
0 |
0 |
0 |
425 |
941 |
11961 |
17520 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
150 |
161 |
12 |
31 |
9 |
0 |
0 |
0 |
| OW |
0 |
115 |
24 |
11 |
22 |
6 |
11 |
0 |
| VODI |
0 |
58 |
34 |
79 |
41 |
5 |
37 |
0 |
| ODI |
0 |
0 |
2 |
65 |
140 |
72 |
72 |
2 |
| CDI |
0 |
0 |
0 |
8 |
289 |
512 |
332 |
40 |
| VCDI |
0 |
0 |
0 |
0 |
418 |
948 |
11886 |
17504 |
|
Date: 2025-04-28:
| 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 |
148 |
144 |
13 |
14 |
0 |
0 |
0 |
0 |
| OW |
0 |
154 |
46 |
36 |
8 |
0 |
0 |
0 |
| VODI |
0 |
14 |
10 |
114 |
96 |
8 |
5 |
0 |
| ODI |
0 |
0 |
0 |
14 |
259 |
40 |
47 |
0 |
| CDI |
0 |
0 |
0 |
0 |
286 |
680 |
161 |
10 |
| VCDI |
0 |
0 |
0 |
0 |
282 |
909 |
13409 |
16189 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
148 |
125 |
9 |
24 |
0 |
0 |
0 |
0 |
| OW |
0 |
114 |
19 |
16 |
18 |
0 |
7 |
0 |
| VODI |
0 |
73 |
37 |
74 |
69 |
12 |
65 |
0 |
| ODI |
0 |
0 |
4 |
62 |
218 |
111 |
67 |
0 |
| CDI |
0 |
0 |
0 |
2 |
267 |
526 |
475 |
22 |
| VCDI |
0 |
0 |
0 |
0 |
359 |
988 |
13008 |
16177 |
|
Date: 2025-04-30:
| 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 |
120 |
210 |
13 |
5 |
0 |
0 |
0 |
0 |
| OW |
0 |
142 |
44 |
47 |
20 |
1 |
0 |
2 |
| VODI |
0 |
12 |
4 |
127 |
99 |
3 |
10 |
28 |
| ODI |
0 |
0 |
0 |
25 |
225 |
40 |
30 |
37 |
| CDI |
0 |
0 |
0 |
5 |
243 |
494 |
452 |
90 |
| VCDI |
0 |
0 |
0 |
0 |
489 |
2074 |
12231 |
15774 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
120 |
118 |
11 |
5 |
0 |
0 |
0 |
0 |
| OW |
0 |
147 |
14 |
17 |
9 |
2 |
0 |
1 |
| VODI |
0 |
84 |
29 |
89 |
97 |
5 |
8 |
63 |
| ODI |
0 |
15 |
6 |
78 |
216 |
107 |
73 |
51 |
| CDI |
0 |
0 |
1 |
20 |
223 |
478 |
955 |
80 |
| VCDI |
0 |
0 |
0 |
0 |
531 |
2020 |
11687 |
15736 |
|
Date: 2025-05-02:
| 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 |
125 |
218 |
18 |
18 |
2 |
0 |
0 |
0 |
| OW |
0 |
172 |
24 |
49 |
28 |
1 |
0 |
24 |
| VODI |
0 |
9 |
23 |
164 |
84 |
11 |
10 |
60 |
| ODI |
0 |
0 |
0 |
93 |
199 |
44 |
27 |
50 |
| CDI |
0 |
0 |
0 |
59 |
475 |
616 |
253 |
67 |
| VCDI |
0 |
0 |
0 |
38 |
750 |
2981 |
11271 |
15133 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
125 |
107 |
2 |
6 |
0 |
0 |
0 |
0 |
| OW |
0 |
145 |
20 |
27 |
14 |
4 |
1 |
2 |
| VODI |
0 |
133 |
32 |
77 |
88 |
35 |
23 |
89 |
| ODI |
0 |
13 |
9 |
153 |
163 |
119 |
40 |
65 |
| CDI |
0 |
1 |
2 |
84 |
352 |
858 |
881 |
56 |
| VCDI |
0 |
0 |
0 |
74 |
921 |
2637 |
10616 |
15122 |
|
Generated by /metno/routine/sms/V3/SIconcentrationValidation5/SICmultiWebPage5sector.sh Fri May 9 02:33:05 UTC 2025 on arcval2