Validation of sea ice concentration - Asian sector
Bulletin date: 2023-07-27
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-07-21:
| 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 |
1974 |
6088 |
591 |
455 |
29 |
0 |
0 |
0 |
| OW |
0 |
153 |
244 |
1522 |
83 |
0 |
0 |
0 |
| VODI |
0 |
27 |
17 |
1497 |
2023 |
12 |
0 |
0 |
| ODI |
0 |
0 |
0 |
178 |
6153 |
523 |
0 |
0 |
| CDI |
0 |
0 |
0 |
38 |
2187 |
7676 |
15 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
461 |
136 |
0 |
|
...date precedes bulletin
|
Date: 2023-07-23:
| 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 |
2334 |
6094 |
576 |
669 |
37 |
0 |
0 |
0 |
| OW |
3 |
187 |
184 |
1477 |
334 |
1 |
0 |
0 |
| VODI |
0 |
34 |
21 |
1007 |
3139 |
41 |
1 |
0 |
| ODI |
0 |
0 |
4 |
112 |
4817 |
1018 |
11 |
0 |
| CDI |
0 |
0 |
0 |
36 |
1078 |
8140 |
182 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
403 |
142 |
0 |
|
...date precedes bulletin
|
Date: 2023-07-25:
| 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 |
2878 |
6278 |
557 |
484 |
10 |
0 |
0 |
0 |
| OW |
2 |
48 |
140 |
1037 |
48 |
0 |
0 |
0 |
| VODI |
0 |
13 |
5 |
1550 |
1042 |
15 |
0 |
0 |
| ODI |
0 |
0 |
0 |
94 |
7210 |
1200 |
12 |
0 |
| CDI |
0 |
0 |
0 |
12 |
507 |
8034 |
764 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
68 |
74 |
0 |
|
...date precedes bulletin
|
Date: 2023-07-27:
| 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 |
2466 |
7005 |
455 |
377 |
11 |
0 |
0 |
0 |
| OW |
2 |
92 |
195 |
1143 |
55 |
0 |
0 |
0 |
| VODI |
0 |
19 |
5 |
1726 |
1537 |
21 |
1 |
0 |
| ODI |
0 |
1 |
0 |
85 |
6420 |
1858 |
31 |
0 |
| CDI |
0 |
0 |
0 |
4 |
330 |
5735 |
2457 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
32 |
19 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2466 |
6992 |
467 |
520 |
22 |
0 |
0 |
0 |
| OW |
2 |
103 |
179 |
1087 |
101 |
1 |
0 |
0 |
| VODI |
0 |
21 |
9 |
1624 |
1494 |
45 |
2 |
0 |
| ODI |
0 |
0 |
0 |
99 |
6391 |
1670 |
26 |
0 |
| CDI |
0 |
1 |
0 |
5 |
345 |
5892 |
2461 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
38 |
19 |
0 |
|
Date: 2023-07-29:
| 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 |
2727 |
6800 |
418 |
436 |
12 |
0 |
0 |
0 |
| OW |
1 |
191 |
279 |
1164 |
81 |
0 |
0 |
0 |
| VODI |
0 |
32 |
21 |
1782 |
2175 |
13 |
0 |
0 |
| ODI |
0 |
2 |
1 |
79 |
5359 |
2569 |
71 |
0 |
| CDI |
0 |
0 |
0 |
1 |
206 |
5741 |
1906 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
15 |
0 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2727 |
6809 |
447 |
637 |
38 |
0 |
0 |
0 |
| OW |
1 |
179 |
253 |
1073 |
104 |
0 |
0 |
0 |
| VODI |
0 |
34 |
18 |
1660 |
2143 |
26 |
0 |
0 |
| ODI |
0 |
3 |
1 |
91 |
5340 |
2361 |
73 |
0 |
| CDI |
0 |
0 |
0 |
1 |
208 |
5938 |
1904 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
13 |
0 |
0 |
|
Date: 2023-07-31:
| 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 |
1047 |
8922 |
592 |
270 |
17 |
0 |
0 |
0 |
| OW |
0 |
81 |
279 |
866 |
18 |
0 |
0 |
0 |
| VODI |
0 |
5 |
2 |
2386 |
451 |
0 |
0 |
0 |
| ODI |
0 |
1 |
0 |
100 |
6217 |
278 |
0 |
0 |
| CDI |
0 |
0 |
0 |
1 |
510 |
7986 |
248 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
91 |
1624 |
90 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1046 |
8649 |
544 |
590 |
41 |
0 |
0 |
0 |
| OW |
1 |
341 |
295 |
1135 |
128 |
0 |
0 |
0 |
| VODI |
0 |
18 |
34 |
1783 |
2318 |
62 |
0 |
0 |
| ODI |
0 |
1 |
0 |
111 |
4542 |
3311 |
1 |
0 |
| CDI |
0 |
0 |
0 |
4 |
184 |
4981 |
1864 |
90 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
1 |
7 |
0 |
|
Date: 2023-08-02:
| 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 |
4017 |
6517 |
346 |
312 |
4 |
0 |
0 |
0 |
| OW |
0 |
149 |
293 |
1122 |
39 |
0 |
0 |
0 |
| VODI |
0 |
23 |
12 |
1737 |
1268 |
6 |
0 |
0 |
| ODI |
0 |
0 |
0 |
113 |
5293 |
856 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
494 |
6952 |
879 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
156 |
1241 |
253 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
4016 |
6179 |
368 |
586 |
23 |
0 |
0 |
0 |
| OW |
1 |
464 |
237 |
1196 |
295 |
0 |
0 |
0 |
| VODI |
0 |
46 |
46 |
1376 |
2876 |
82 |
0 |
0 |
| ODI |
0 |
0 |
0 |
126 |
3766 |
3840 |
108 |
0 |
| CDI |
0 |
0 |
0 |
0 |
138 |
4048 |
2006 |
253 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
6 |
0 |
|
Date: 2023-08-04:
| 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 |
4635 |
6319 |
256 |
226 |
0 |
0 |
0 |
0 |
| OW |
0 |
282 |
346 |
1218 |
23 |
0 |
0 |
0 |
| VODI |
0 |
14 |
39 |
1911 |
1188 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
163 |
4798 |
1076 |
0 |
0 |
| CDI |
0 |
0 |
0 |
11 |
888 |
6972 |
210 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
1001 |
506 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
4634 |
6008 |
293 |
654 |
6 |
0 |
0 |
0 |
| OW |
1 |
532 |
240 |
1340 |
280 |
0 |
0 |
0 |
| VODI |
0 |
74 |
96 |
1328 |
2973 |
88 |
0 |
0 |
| ODI |
0 |
1 |
12 |
195 |
3153 |
4343 |
93 |
0 |
| CDI |
0 |
0 |
0 |
12 |
485 |
4617 |
623 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
|
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