Validation of sea ice concentration - Asian sector
Bulletin date: 2021-05-20
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2021-05-14:
| 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 |
259 |
4 |
24 |
8 |
0 |
0 |
0 |
| OW |
0 |
21 |
3 |
54 |
85 |
1 |
0 |
0 |
| VODI |
0 |
19 |
2 |
92 |
228 |
19 |
0 |
0 |
| ODI |
0 |
14 |
5 |
106 |
290 |
130 |
14 |
0 |
| CDI |
0 |
8 |
4 |
160 |
455 |
548 |
277 |
8 |
| VCDI |
0 |
0 |
0 |
97 |
731 |
3744 |
9789 |
14883 |
|
...date precedes bulletin
|
Date: 2021-05-16:
| 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 |
161 |
6 |
68 |
8 |
0 |
0 |
0 |
| OW |
0 |
7 |
1 |
49 |
152 |
0 |
0 |
0 |
| VODI |
0 |
7 |
1 |
131 |
249 |
32 |
0 |
0 |
| ODI |
0 |
0 |
1 |
103 |
220 |
136 |
20 |
0 |
| CDI |
0 |
0 |
0 |
201 |
425 |
555 |
569 |
59 |
| VCDI |
0 |
0 |
0 |
76 |
1091 |
4123 |
11264 |
12367 |
|
...date precedes bulletin
|
Date: 2021-05-18:
| 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 |
139 |
5 |
99 |
9 |
0 |
0 |
0 |
| OW |
0 |
9 |
3 |
172 |
61 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
142 |
259 |
9 |
2 |
1 |
| ODI |
0 |
0 |
0 |
71 |
405 |
57 |
23 |
25 |
| CDI |
0 |
5 |
3 |
212 |
802 |
811 |
305 |
52 |
| VCDI |
0 |
2 |
5 |
75 |
493 |
3634 |
11365 |
12827 |
|
...date precedes bulletin
|
Date: 2021-05-20:
| 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 |
185 |
4 |
120 |
1 |
0 |
0 |
0 |
| OW |
0 |
6 |
4 |
183 |
57 |
0 |
0 |
0 |
| VODI |
0 |
2 |
2 |
137 |
226 |
6 |
0 |
0 |
| ODI |
0 |
0 |
0 |
66 |
464 |
40 |
29 |
17 |
| CDI |
0 |
0 |
0 |
185 |
864 |
912 |
259 |
49 |
| VCDI |
0 |
20 |
7 |
96 |
611 |
3789 |
11104 |
12637 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
169 |
3 |
124 |
10 |
0 |
0 |
0 |
| OW |
0 |
23 |
5 |
159 |
72 |
1 |
0 |
0 |
| VODI |
0 |
1 |
2 |
154 |
230 |
10 |
1 |
2 |
| ODI |
0 |
0 |
0 |
67 |
449 |
51 |
31 |
22 |
| CDI |
0 |
0 |
0 |
185 |
828 |
969 |
306 |
48 |
| VCDI |
0 |
20 |
7 |
98 |
634 |
3716 |
11054 |
12631 |
|
Date: 2021-05-22:
| 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 |
0 |
254 |
4 |
78 |
2 |
0 |
0 |
0 |
| OW |
0 |
35 |
8 |
143 |
63 |
0 |
0 |
0 |
| VODI |
0 |
11 |
6 |
200 |
210 |
5 |
0 |
0 |
| ODI |
0 |
1 |
1 |
126 |
350 |
51 |
16 |
4 |
| CDI |
0 |
22 |
5 |
233 |
850 |
1156 |
393 |
56 |
| VCDI |
0 |
21 |
7 |
142 |
714 |
3688 |
9474 |
13753 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
204 |
4 |
103 |
13 |
0 |
0 |
0 |
| OW |
0 |
78 |
8 |
122 |
65 |
0 |
0 |
0 |
| VODI |
0 |
18 |
6 |
189 |
228 |
8 |
0 |
0 |
| ODI |
0 |
0 |
1 |
127 |
334 |
70 |
23 |
8 |
| CDI |
0 |
23 |
5 |
232 |
824 |
1184 |
447 |
57 |
| VCDI |
0 |
21 |
7 |
149 |
725 |
3638 |
9413 |
13748 |
|
Date: 2021-05-24:
| 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 |
0 |
201 |
6 |
96 |
0 |
0 |
0 |
0 |
| OW |
0 |
47 |
10 |
174 |
29 |
1 |
0 |
0 |
| VODI |
0 |
5 |
3 |
336 |
282 |
19 |
3 |
0 |
| ODI |
0 |
34 |
3 |
113 |
659 |
104 |
17 |
0 |
| CDI |
0 |
205 |
28 |
403 |
1280 |
2155 |
133 |
40 |
| VCDI |
0 |
0 |
1 |
0 |
276 |
4645 |
9599 |
11175 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
177 |
4 |
140 |
10 |
0 |
0 |
0 |
| OW |
0 |
49 |
7 |
136 |
43 |
1 |
0 |
0 |
| VODI |
0 |
22 |
7 |
232 |
274 |
13 |
4 |
0 |
| ODI |
0 |
15 |
4 |
141 |
396 |
123 |
21 |
2 |
| CDI |
0 |
176 |
11 |
223 |
868 |
1460 |
279 |
108 |
| VCDI |
0 |
53 |
18 |
250 |
935 |
5327 |
9448 |
11105 |
|
Date: 2021-05-26:
| 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 |
0 |
209 |
10 |
124 |
6 |
0 |
0 |
0 |
| OW |
0 |
110 |
17 |
273 |
92 |
8 |
0 |
0 |
| VODI |
0 |
39 |
10 |
328 |
321 |
28 |
13 |
0 |
| ODI |
0 |
81 |
6 |
195 |
553 |
124 |
47 |
0 |
| CDI |
0 |
277 |
41 |
418 |
1389 |
2195 |
295 |
11 |
| VCDI |
0 |
0 |
0 |
10 |
257 |
5014 |
12303 |
7278 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
191 |
7 |
160 |
23 |
2 |
0 |
0 |
| OW |
0 |
79 |
10 |
157 |
98 |
0 |
0 |
0 |
| VODI |
0 |
93 |
15 |
274 |
273 |
33 |
5 |
0 |
| ODI |
0 |
74 |
8 |
201 |
394 |
103 |
88 |
5 |
| CDI |
0 |
253 |
35 |
406 |
1066 |
1458 |
530 |
12 |
| VCDI |
0 |
26 |
9 |
150 |
764 |
5773 |
12035 |
7272 |
|
Date: 2021-05-28:
| 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 |
332 |
16 |
159 |
7 |
0 |
0 |
0 |
| OW |
0 |
169 |
23 |
261 |
114 |
7 |
0 |
0 |
| VODI |
0 |
131 |
23 |
237 |
347 |
28 |
14 |
0 |
| ODI |
0 |
155 |
19 |
275 |
452 |
182 |
44 |
0 |
| CDI |
0 |
334 |
51 |
521 |
1556 |
2610 |
501 |
11 |
| VCDI |
0 |
0 |
0 |
42 |
580 |
4526 |
9527 |
8828 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
277 |
10 |
177 |
39 |
2 |
0 |
0 |
| OW |
0 |
101 |
10 |
118 |
119 |
6 |
7 |
0 |
| VODI |
0 |
145 |
17 |
200 |
233 |
41 |
24 |
0 |
| ODI |
0 |
126 |
22 |
203 |
387 |
115 |
62 |
0 |
| CDI |
0 |
395 |
53 |
538 |
1159 |
1535 |
392 |
7 |
| VCDI |
0 |
77 |
20 |
259 |
1119 |
5654 |
9601 |
8832 |
|
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