Validation of sea ice concentration - Asian sector
Bulletin date: 2023-07-20
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-07-14:
| 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 |
1496 |
4378 |
306 |
326 |
99 |
16 |
1 |
0 |
| OW |
0 |
583 |
269 |
555 |
176 |
10 |
1 |
0 |
| VODI |
0 |
195 |
212 |
1023 |
922 |
99 |
6 |
0 |
| ODI |
0 |
32 |
41 |
614 |
5197 |
1554 |
8 |
0 |
| CDI |
0 |
22 |
25 |
136 |
2922 |
7134 |
221 |
0 |
| VCDI |
0 |
1 |
0 |
10 |
600 |
1976 |
916 |
0 |
|
...date precedes bulletin
|
Date: 2023-07-16:
| 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 |
1585 |
4698 |
302 |
305 |
66 |
6 |
0 |
0 |
| OW |
0 |
688 |
319 |
592 |
199 |
9 |
0 |
0 |
| VODI |
0 |
267 |
236 |
1093 |
1224 |
105 |
0 |
0 |
| ODI |
0 |
32 |
38 |
744 |
5364 |
1617 |
6 |
0 |
| CDI |
0 |
31 |
18 |
130 |
2746 |
5977 |
743 |
0 |
| VCDI |
0 |
0 |
0 |
7 |
248 |
1835 |
852 |
0 |
|
...date precedes bulletin
|
Date: 2023-07-18:
| 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 |
1567 |
5775 |
411 |
312 |
37 |
5 |
0 |
0 |
| OW |
0 |
414 |
337 |
690 |
63 |
7 |
0 |
0 |
| VODI |
0 |
82 |
129 |
1763 |
1234 |
18 |
0 |
0 |
| ODI |
0 |
21 |
20 |
608 |
6135 |
910 |
1 |
0 |
| CDI |
0 |
11 |
14 |
53 |
2173 |
8264 |
107 |
0 |
| VCDI |
0 |
1 |
0 |
0 |
6 |
742 |
172 |
0 |
|
...date precedes bulletin
|
Date: 2023-07-20:
| 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 |
1611 |
6459 |
447 |
274 |
31 |
4 |
0 |
0 |
| OW |
0 |
510 |
373 |
825 |
100 |
5 |
0 |
0 |
| VODI |
0 |
76 |
144 |
1660 |
1592 |
47 |
0 |
0 |
| ODI |
0 |
22 |
34 |
466 |
5596 |
1010 |
6 |
0 |
| CDI |
0 |
8 |
19 |
52 |
2498 |
7432 |
86 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
560 |
135 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1611 |
6531 |
459 |
362 |
44 |
4 |
0 |
0 |
| OW |
0 |
441 |
346 |
768 |
118 |
7 |
0 |
0 |
| VODI |
0 |
77 |
163 |
1644 |
1619 |
47 |
0 |
0 |
| ODI |
0 |
17 |
26 |
447 |
5467 |
1031 |
4 |
0 |
| CDI |
0 |
9 |
23 |
56 |
2567 |
7347 |
91 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
622 |
132 |
0 |
|
Date: 2023-07-22:
| 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 |
2094 |
6560 |
444 |
299 |
36 |
3 |
0 |
0 |
| OW |
0 |
432 |
381 |
1038 |
264 |
9 |
0 |
0 |
| VODI |
0 |
86 |
97 |
1249 |
2223 |
159 |
0 |
0 |
| ODI |
0 |
30 |
27 |
276 |
4445 |
1680 |
13 |
0 |
| CDI |
0 |
7 |
15 |
44 |
2097 |
7295 |
235 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
463 |
81 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2094 |
6656 |
504 |
423 |
67 |
3 |
0 |
0 |
| OW |
0 |
330 |
312 |
861 |
289 |
10 |
0 |
0 |
| VODI |
0 |
90 |
108 |
1306 |
2166 |
203 |
0 |
0 |
| ODI |
0 |
28 |
26 |
265 |
4437 |
1676 |
11 |
0 |
| CDI |
0 |
11 |
14 |
51 |
2104 |
7166 |
235 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
551 |
83 |
0 |
|
Date: 2023-07-24:
| 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 |
2701 |
6338 |
477 |
325 |
46 |
3 |
0 |
0 |
| OW |
0 |
349 |
264 |
509 |
80 |
4 |
0 |
0 |
| VODI |
0 |
103 |
193 |
1364 |
714 |
31 |
3 |
0 |
| ODI |
0 |
9 |
9 |
735 |
6862 |
1073 |
15 |
0 |
| CDI |
0 |
1 |
4 |
29 |
1055 |
8215 |
353 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
92 |
126 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2701 |
6346 |
546 |
599 |
130 |
13 |
0 |
0 |
| OW |
0 |
330 |
251 |
864 |
493 |
36 |
1 |
0 |
| VODI |
0 |
93 |
126 |
1194 |
2395 |
414 |
22 |
0 |
| ODI |
0 |
24 |
14 |
261 |
3994 |
1578 |
58 |
0 |
| CDI |
0 |
7 |
10 |
41 |
1740 |
6850 |
350 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
5 |
527 |
66 |
0 |
|
Date: 2023-07-26:
| 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 |
2781 |
6771 |
395 |
308 |
20 |
3 |
0 |
0 |
| OW |
0 |
297 |
263 |
734 |
83 |
6 |
0 |
0 |
| VODI |
0 |
114 |
196 |
1493 |
1064 |
64 |
11 |
0 |
| ODI |
0 |
14 |
20 |
575 |
5991 |
1776 |
53 |
0 |
| CDI |
0 |
2 |
2 |
27 |
541 |
6877 |
1517 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
44 |
40 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2781 |
6739 |
491 |
767 |
119 |
7 |
0 |
0 |
| OW |
0 |
283 |
212 |
967 |
578 |
51 |
9 |
0 |
| VODI |
0 |
137 |
144 |
1080 |
2652 |
462 |
45 |
0 |
| ODI |
0 |
32 |
16 |
275 |
3451 |
1769 |
133 |
0 |
| CDI |
0 |
7 |
13 |
46 |
896 |
6265 |
1354 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
3 |
216 |
80 |
0 |
|
Date: 2023-07-28:
| 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 |
2035 |
7732 |
327 |
240 |
8 |
4 |
0 |
0 |
| OW |
0 |
362 |
370 |
776 |
81 |
9 |
0 |
0 |
| VODI |
0 |
121 |
187 |
1627 |
1643 |
55 |
1 |
0 |
| ODI |
0 |
9 |
15 |
406 |
5617 |
2192 |
49 |
0 |
| CDI |
0 |
1 |
2 |
16 |
334 |
5977 |
1864 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
10 |
12 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2033 |
7724 |
544 |
875 |
158 |
17 |
0 |
0 |
| OW |
2 |
298 |
198 |
948 |
702 |
49 |
0 |
0 |
| VODI |
0 |
147 |
133 |
993 |
3070 |
545 |
29 |
0 |
| ODI |
0 |
39 |
11 |
211 |
3131 |
2124 |
193 |
0 |
| CDI |
0 |
17 |
15 |
37 |
621 |
5406 |
1682 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
1 |
106 |
22 |
0 |
|
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