Validation of sea ice concentration - Asian sector
Bulletin date: 2023-06-01
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-05-26:
| 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 |
3 |
918 |
38 |
77 |
20 |
4 |
0 |
0 |
| OW |
0 |
96 |
29 |
41 |
11 |
4 |
0 |
0 |
| VODI |
0 |
73 |
31 |
104 |
57 |
6 |
2 |
0 |
| ODI |
0 |
69 |
28 |
94 |
197 |
59 |
16 |
0 |
| CDI |
0 |
171 |
57 |
171 |
446 |
1052 |
193 |
0 |
| VCDI |
0 |
55 |
49 |
161 |
607 |
6576 |
18904 |
1663 |
|
...date precedes bulletin
|
Date: 2023-05-28:
| 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 |
0 |
1034 |
53 |
84 |
32 |
2 |
2 |
0 |
| OW |
0 |
113 |
36 |
53 |
10 |
6 |
0 |
0 |
| VODI |
0 |
85 |
47 |
120 |
73 |
12 |
6 |
0 |
| ODI |
0 |
88 |
40 |
105 |
181 |
130 |
81 |
0 |
| CDI |
0 |
174 |
59 |
181 |
504 |
836 |
594 |
0 |
| VCDI |
0 |
82 |
77 |
210 |
543 |
7531 |
18330 |
568 |
|
...date precedes bulletin
|
Date: 2023-05-30:
| 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 |
32 |
1182 |
52 |
69 |
28 |
2 |
0 |
0 |
| OW |
0 |
162 |
56 |
83 |
15 |
5 |
0 |
0 |
| VODI |
0 |
139 |
79 |
124 |
87 |
24 |
7 |
0 |
| ODI |
0 |
92 |
44 |
156 |
206 |
133 |
55 |
0 |
| CDI |
0 |
76 |
48 |
179 |
500 |
1018 |
724 |
4 |
| VCDI |
0 |
43 |
53 |
156 |
297 |
4802 |
20454 |
896 |
|
...date precedes bulletin
|
Date: 2023-06-01:
| 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 |
54 |
1384 |
56 |
90 |
13 |
2 |
0 |
0 |
| OW |
0 |
180 |
57 |
61 |
22 |
1 |
0 |
0 |
| VODI |
0 |
184 |
74 |
156 |
79 |
26 |
17 |
0 |
| ODI |
0 |
112 |
44 |
152 |
174 |
168 |
86 |
1 |
| CDI |
0 |
85 |
62 |
180 |
498 |
1520 |
555 |
2 |
| VCDI |
0 |
94 |
59 |
193 |
369 |
6470 |
18390 |
412 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
54 |
1390 |
66 |
106 |
19 |
2 |
0 |
0 |
| OW |
0 |
181 |
48 |
42 |
17 |
2 |
0 |
0 |
| VODI |
0 |
172 |
67 |
160 |
82 |
19 |
17 |
0 |
| ODI |
0 |
109 |
45 |
145 |
163 |
155 |
87 |
1 |
| CDI |
0 |
92 |
64 |
182 |
497 |
1537 |
573 |
2 |
| VCDI |
0 |
95 |
62 |
197 |
377 |
6472 |
18371 |
412 |
|
Date: 2023-06-03:
| 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 |
11 |
1473 |
56 |
102 |
14 |
0 |
0 |
0 |
| OW |
0 |
183 |
61 |
63 |
13 |
0 |
1 |
0 |
| VODI |
0 |
179 |
81 |
163 |
113 |
32 |
24 |
0 |
| ODI |
0 |
110 |
44 |
145 |
164 |
232 |
133 |
0 |
| CDI |
0 |
118 |
74 |
227 |
505 |
1068 |
1506 |
0 |
| VCDI |
0 |
84 |
64 |
159 |
261 |
3912 |
20310 |
397 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11 |
1477 |
66 |
113 |
18 |
0 |
0 |
0 |
| OW |
0 |
172 |
48 |
58 |
15 |
0 |
2 |
0 |
| VODI |
0 |
169 |
80 |
149 |
107 |
44 |
23 |
0 |
| ODI |
0 |
112 |
47 |
145 |
161 |
191 |
155 |
0 |
| CDI |
0 |
134 |
75 |
227 |
494 |
1091 |
1467 |
0 |
| VCDI |
0 |
83 |
64 |
167 |
275 |
3918 |
20327 |
397 |
|
Date: 2023-06-05:
| 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 |
11 |
1661 |
67 |
103 |
1 |
0 |
0 |
0 |
| OW |
0 |
287 |
76 |
52 |
8 |
0 |
0 |
0 |
| VODI |
0 |
161 |
115 |
262 |
103 |
14 |
1 |
0 |
| ODI |
0 |
104 |
59 |
172 |
416 |
240 |
29 |
0 |
| CDI |
0 |
98 |
100 |
276 |
588 |
1568 |
522 |
9 |
| VCDI |
0 |
4 |
8 |
32 |
138 |
3173 |
20973 |
651 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11 |
1520 |
65 |
124 |
6 |
0 |
0 |
0 |
| OW |
0 |
195 |
51 |
56 |
19 |
3 |
0 |
0 |
| VODI |
0 |
201 |
82 |
136 |
130 |
86 |
17 |
0 |
| ODI |
0 |
134 |
58 |
140 |
220 |
198 |
129 |
0 |
| CDI |
0 |
193 |
114 |
313 |
585 |
1217 |
1052 |
0 |
| VCDI |
0 |
72 |
55 |
128 |
294 |
3491 |
20327 |
660 |
|
Date: 2023-06-07:
| 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 |
239 |
1720 |
85 |
68 |
0 |
0 |
0 |
0 |
| OW |
0 |
233 |
81 |
92 |
12 |
0 |
0 |
0 |
| VODI |
0 |
180 |
75 |
196 |
124 |
57 |
3 |
0 |
| ODI |
0 |
109 |
60 |
224 |
386 |
214 |
8 |
0 |
| CDI |
0 |
131 |
85 |
278 |
656 |
1457 |
570 |
0 |
| VCDI |
0 |
20 |
17 |
77 |
225 |
4836 |
18963 |
601 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
239 |
1388 |
76 |
83 |
2 |
0 |
0 |
0 |
| OW |
0 |
239 |
36 |
56 |
46 |
12 |
0 |
0 |
| VODI |
0 |
253 |
66 |
119 |
136 |
140 |
7 |
0 |
| ODI |
0 |
170 |
65 |
119 |
203 |
217 |
74 |
0 |
| CDI |
0 |
247 |
102 |
418 |
674 |
1234 |
1204 |
0 |
| VCDI |
0 |
96 |
58 |
140 |
342 |
4961 |
18259 |
601 |
|
Date: 2023-06-09:
| 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 |
241 |
1820 |
99 |
80 |
4 |
0 |
0 |
0 |
| OW |
0 |
237 |
92 |
108 |
39 |
6 |
0 |
0 |
| VODI |
0 |
191 |
62 |
205 |
203 |
71 |
7 |
0 |
| ODI |
0 |
137 |
54 |
217 |
303 |
265 |
60 |
0 |
| CDI |
0 |
141 |
79 |
265 |
709 |
1641 |
732 |
0 |
| VCDI |
0 |
21 |
27 |
91 |
531 |
4195 |
18511 |
638 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
241 |
1471 |
81 |
87 |
24 |
0 |
0 |
0 |
| OW |
0 |
205 |
38 |
62 |
57 |
32 |
0 |
0 |
| VODI |
0 |
247 |
56 |
111 |
170 |
124 |
6 |
0 |
| ODI |
0 |
190 |
64 |
144 |
220 |
213 |
59 |
0 |
| CDI |
0 |
297 |
113 |
403 |
684 |
1573 |
1336 |
0 |
| VCDI |
0 |
137 |
61 |
159 |
634 |
4236 |
17909 |
638 |
|
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