Validation of sea ice concentration - Asian sector
Bulletin date: 2023-07-20
Data source: OSI SAF N.H. 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 |
1566 |
3964 |
453 |
557 |
81 |
1 |
0 |
0 |
| OW |
0 |
245 |
231 |
912 |
204 |
2 |
0 |
0 |
| VODI |
0 |
29 |
43 |
1325 |
1029 |
31 |
0 |
0 |
| ODI |
0 |
4 |
14 |
297 |
5784 |
1347 |
0 |
0 |
| CDI |
0 |
0 |
0 |
86 |
2617 |
7355 |
402 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
115 |
2405 |
982 |
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 |
1597 |
4467 |
434 |
409 |
55 |
0 |
0 |
0 |
| OW |
0 |
335 |
260 |
957 |
255 |
0 |
0 |
0 |
| VODI |
0 |
64 |
64 |
1415 |
1356 |
26 |
0 |
0 |
| ODI |
0 |
5 |
13 |
449 |
5989 |
1345 |
0 |
0 |
| CDI |
0 |
0 |
0 |
93 |
2338 |
6389 |
825 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
55 |
2088 |
799 |
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 |
1698 |
5425 |
591 |
366 |
27 |
0 |
0 |
0 |
| OW |
0 |
91 |
213 |
1132 |
74 |
1 |
0 |
0 |
| VODI |
0 |
1 |
18 |
1856 |
1346 |
5 |
0 |
0 |
| ODI |
0 |
0 |
1 |
195 |
7061 |
437 |
1 |
0 |
| CDI |
0 |
0 |
0 |
45 |
1758 |
8762 |
57 |
0 |
| VCDI |
0 |
1 |
0 |
0 |
0 |
836 |
84 |
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 |
2650 |
5274 |
500 |
372 |
30 |
0 |
0 |
0 |
| OW |
0 |
186 |
265 |
1276 |
86 |
0 |
0 |
0 |
| VODI |
0 |
18 |
20 |
1688 |
1782 |
11 |
0 |
0 |
| ODI |
0 |
2 |
1 |
207 |
6455 |
468 |
1 |
0 |
| CDI |
0 |
0 |
0 |
42 |
1709 |
8330 |
14 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
576 |
119 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2650 |
5307 |
493 |
524 |
37 |
0 |
0 |
0 |
| OW |
0 |
154 |
269 |
1138 |
119 |
0 |
0 |
0 |
| VODI |
0 |
18 |
23 |
1704 |
1796 |
9 |
0 |
0 |
| ODI |
0 |
1 |
1 |
172 |
6303 |
515 |
0 |
0 |
| CDI |
0 |
0 |
0 |
47 |
1805 |
8226 |
15 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
635 |
119 |
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 |
2287 |
6094 |
474 |
556 |
25 |
0 |
0 |
0 |
| OW |
0 |
203 |
215 |
1518 |
188 |
0 |
0 |
0 |
| VODI |
0 |
39 |
15 |
1101 |
2628 |
31 |
0 |
0 |
| ODI |
0 |
0 |
6 |
136 |
5440 |
887 |
2 |
0 |
| CDI |
0 |
0 |
0 |
39 |
1548 |
7983 |
123 |
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 |
2287 |
6132 |
515 |
759 |
54 |
0 |
0 |
0 |
| OW |
0 |
167 |
167 |
1258 |
210 |
0 |
0 |
0 |
| VODI |
0 |
36 |
23 |
1174 |
2605 |
35 |
0 |
0 |
| ODI |
0 |
1 |
5 |
116 |
5371 |
949 |
1 |
0 |
| CDI |
0 |
0 |
0 |
43 |
1589 |
7827 |
122 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
553 |
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 |
2501 |
6339 |
580 |
459 |
11 |
0 |
0 |
0 |
| OW |
3 |
50 |
151 |
956 |
46 |
0 |
0 |
0 |
| VODI |
0 |
10 |
3 |
1771 |
612 |
12 |
0 |
0 |
| ODI |
0 |
0 |
0 |
125 |
8157 |
416 |
5 |
0 |
| CDI |
0 |
0 |
0 |
12 |
758 |
8661 |
226 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
79 |
139 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2501 |
6251 |
558 |
944 |
81 |
0 |
0 |
0 |
| OW |
3 |
116 |
155 |
1250 |
440 |
11 |
0 |
0 |
| VODI |
0 |
32 |
17 |
1001 |
3055 |
137 |
2 |
0 |
| ODI |
0 |
0 |
4 |
93 |
4467 |
1327 |
38 |
0 |
| CDI |
0 |
0 |
0 |
35 |
1540 |
7154 |
269 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
539 |
61 |
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 |
2935 |
6406 |
537 |
387 |
13 |
0 |
0 |
0 |
| OW |
2 |
59 |
149 |
1117 |
56 |
0 |
0 |
0 |
| VODI |
0 |
14 |
7 |
1563 |
1333 |
24 |
1 |
0 |
| ODI |
0 |
0 |
0 |
127 |
6704 |
1572 |
26 |
0 |
| CDI |
0 |
0 |
0 |
7 |
403 |
6607 |
1949 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
43 |
41 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2934 |
6281 |
539 |
1065 |
84 |
1 |
0 |
0 |
| OW |
3 |
149 |
124 |
1151 |
650 |
23 |
0 |
0 |
| VODI |
0 |
46 |
22 |
872 |
3333 |
223 |
24 |
0 |
| ODI |
0 |
3 |
8 |
73 |
3750 |
1755 |
87 |
0 |
| CDI |
0 |
0 |
0 |
40 |
689 |
6019 |
1833 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
225 |
73 |
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 |
395 |
8772 |
647 |
519 |
13 |
0 |
0 |
0 |
| OW |
1 |
128 |
237 |
1172 |
60 |
0 |
0 |
0 |
| VODI |
0 |
30 |
19 |
1678 |
1889 |
18 |
0 |
0 |
| ODI |
0 |
1 |
1 |
68 |
5909 |
2299 |
10 |
0 |
| CDI |
0 |
0 |
0 |
0 |
196 |
5447 |
2551 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
12 |
10 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
393 |
8680 |
779 |
1348 |
149 |
2 |
0 |
0 |
| OW |
3 |
163 |
87 |
1157 |
761 |
26 |
0 |
0 |
| VODI |
0 |
76 |
28 |
846 |
3521 |
436 |
10 |
0 |
| ODI |
0 |
12 |
10 |
57 |
3205 |
2268 |
157 |
0 |
| CDI |
0 |
0 |
0 |
29 |
430 |
4929 |
2390 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
115 |
14 |
0 |
|
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