Validation of sea ice concentration - Asian sector
Bulletin date: 2023-08-03
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
|
...date precedes bulletin
|
Date: 2023-07-30:
| 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 |
3158 |
6882 |
240 |
182 |
16 |
0 |
0 |
0 |
| OW |
1 |
720 |
384 |
641 |
101 |
2 |
0 |
0 |
| VODI |
0 |
171 |
275 |
1778 |
1951 |
105 |
0 |
0 |
| ODI |
0 |
6 |
17 |
245 |
5061 |
2645 |
19 |
0 |
| CDI |
0 |
0 |
4 |
24 |
519 |
5944 |
960 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
14 |
17 |
0 |
|
...date precedes bulletin
|
Date: 2023-08-01:
| 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 |
3381 |
7136 |
328 |
208 |
13 |
0 |
0 |
0 |
| OW |
0 |
451 |
366 |
529 |
66 |
0 |
0 |
0 |
| VODI |
0 |
117 |
243 |
1814 |
784 |
9 |
0 |
0 |
| ODI |
0 |
11 |
13 |
624 |
4751 |
930 |
0 |
0 |
| CDI |
0 |
0 |
3 |
16 |
1076 |
7021 |
436 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
259 |
1466 |
31 |
|
...date precedes bulletin
|
Date: 2023-08-03:
| 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 |
3506 |
7389 |
263 |
151 |
3 |
0 |
0 |
0 |
| OW |
0 |
568 |
432 |
674 |
73 |
0 |
0 |
0 |
| VODI |
0 |
117 |
184 |
1665 |
1111 |
38 |
0 |
0 |
| ODI |
0 |
13 |
18 |
413 |
4652 |
1067 |
0 |
0 |
| CDI |
0 |
0 |
1 |
23 |
1167 |
6727 |
262 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
843 |
722 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
3506 |
7445 |
326 |
230 |
20 |
0 |
0 |
0 |
| OW |
0 |
494 |
352 |
687 |
84 |
0 |
0 |
0 |
| VODI |
0 |
138 |
199 |
1519 |
1101 |
45 |
0 |
0 |
| ODI |
0 |
10 |
20 |
466 |
4420 |
877 |
0 |
0 |
| CDI |
0 |
0 |
1 |
24 |
1381 |
6948 |
264 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
805 |
720 |
0 |
|
Date: 2023-08-05:
| 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 |
3644 |
7523 |
229 |
108 |
6 |
0 |
0 |
0 |
| OW |
0 |
755 |
510 |
633 |
85 |
0 |
0 |
0 |
| VODI |
0 |
135 |
218 |
1782 |
1071 |
63 |
0 |
0 |
| ODI |
0 |
6 |
18 |
591 |
4056 |
1166 |
0 |
0 |
| CDI |
0 |
0 |
1 |
39 |
1307 |
6739 |
102 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
1206 |
89 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
3644 |
7580 |
282 |
203 |
28 |
0 |
0 |
0 |
| OW |
0 |
673 |
446 |
579 |
79 |
0 |
0 |
0 |
| VODI |
0 |
158 |
225 |
1602 |
936 |
70 |
0 |
0 |
| ODI |
0 |
8 |
22 |
725 |
3952 |
954 |
0 |
0 |
| CDI |
0 |
0 |
1 |
44 |
1530 |
6992 |
100 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
1158 |
91 |
0 |
|
Date: 2023-08-07:
| 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 |
4975 |
7013 |
232 |
135 |
3 |
0 |
0 |
0 |
| OW |
0 |
548 |
346 |
441 |
37 |
0 |
0 |
0 |
| VODI |
0 |
146 |
292 |
1920 |
715 |
0 |
0 |
0 |
| ODI |
0 |
0 |
4 |
674 |
5664 |
714 |
0 |
0 |
| CDI |
0 |
0 |
0 |
16 |
2400 |
5458 |
26 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
158 |
165 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
4975 |
6528 |
244 |
267 |
32 |
0 |
0 |
0 |
| OW |
0 |
897 |
324 |
558 |
110 |
0 |
0 |
0 |
| VODI |
0 |
275 |
275 |
1498 |
979 |
45 |
0 |
0 |
| ODI |
0 |
7 |
31 |
798 |
4019 |
760 |
0 |
0 |
| CDI |
0 |
0 |
0 |
65 |
3674 |
4934 |
108 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
5 |
591 |
83 |
0 |
|
Date: 2023-08-09:
| 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 |
6307 |
6549 |
151 |
94 |
7 |
0 |
0 |
0 |
| OW |
1 |
823 |
302 |
239 |
17 |
0 |
0 |
0 |
| VODI |
0 |
467 |
613 |
1913 |
208 |
1 |
0 |
0 |
| ODI |
0 |
35 |
40 |
1717 |
4652 |
882 |
0 |
0 |
| CDI |
0 |
1 |
1 |
44 |
2227 |
4543 |
107 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
137 |
4 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6244 |
5692 |
192 |
162 |
16 |
0 |
0 |
0 |
| OW |
58 |
1344 |
226 |
325 |
54 |
0 |
0 |
0 |
| VODI |
6 |
748 |
543 |
1548 |
370 |
1 |
0 |
0 |
| ODI |
0 |
90 |
144 |
1823 |
3168 |
335 |
0 |
0 |
| CDI |
0 |
1 |
2 |
149 |
3497 |
5119 |
98 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
6 |
108 |
13 |
0 |
|
Date: 2023-08-11:
| 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 |
5607 |
7243 |
304 |
266 |
36 |
0 |
0 |
0 |
| OW |
0 |
650 |
335 |
480 |
115 |
4 |
0 |
0 |
| VODI |
0 |
203 |
386 |
1834 |
721 |
104 |
0 |
0 |
| ODI |
0 |
0 |
0 |
1001 |
3559 |
2788 |
177 |
0 |
| CDI |
0 |
0 |
0 |
1 |
1254 |
4646 |
316 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
45 |
7 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
5553 |
6277 |
225 |
366 |
136 |
3 |
0 |
0 |
| OW |
47 |
1059 |
254 |
408 |
181 |
17 |
0 |
0 |
| VODI |
7 |
684 |
493 |
1524 |
607 |
181 |
7 |
0 |
| ODI |
0 |
76 |
53 |
1270 |
2843 |
1177 |
85 |
0 |
| CDI |
0 |
0 |
0 |
14 |
1915 |
6193 |
408 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
16 |
0 |
0 |
|
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