Validation of sea ice concentration - Asian sector
Bulletin date: 2023-09-28
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-09-22:
| 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 |
14164 |
4363 |
35 |
5 |
0 |
0 |
0 |
0 |
| OW |
0 |
947 |
269 |
277 |
57 |
0 |
0 |
0 |
| VODI |
0 |
55 |
126 |
921 |
503 |
178 |
0 |
0 |
| ODI |
0 |
0 |
0 |
191 |
1967 |
653 |
25 |
0 |
| CDI |
0 |
0 |
0 |
17 |
400 |
5355 |
1379 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
482 |
727 |
0 |
|
...date precedes bulletin
|
Date: 2023-09-24:
| 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 |
14084 |
4446 |
21 |
4 |
0 |
0 |
0 |
0 |
| OW |
0 |
868 |
179 |
385 |
31 |
4 |
0 |
0 |
| VODI |
0 |
112 |
119 |
714 |
509 |
246 |
60 |
0 |
| ODI |
0 |
0 |
1 |
268 |
1623 |
515 |
158 |
0 |
| CDI |
0 |
0 |
0 |
5 |
241 |
2718 |
3825 |
27 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
301 |
1415 |
217 |
|
...date precedes bulletin
|
Date: 2023-09-26:
| 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 |
14427 |
4565 |
25 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
829 |
253 |
155 |
1 |
0 |
0 |
0 |
| VODI |
0 |
26 |
94 |
1022 |
151 |
1 |
0 |
0 |
| ODI |
0 |
0 |
0 |
190 |
2034 |
97 |
1 |
0 |
| CDI |
0 |
0 |
0 |
16 |
553 |
2816 |
202 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
70 |
1582 |
3710 |
273 |
|
...date precedes bulletin
|
Date: 2023-09-28:
| 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 |
13984 |
4803 |
25 |
23 |
0 |
0 |
0 |
0 |
| OW |
0 |
825 |
221 |
235 |
6 |
1 |
0 |
0 |
| VODI |
0 |
60 |
95 |
784 |
339 |
2 |
0 |
0 |
| ODI |
0 |
8 |
18 |
126 |
1717 |
281 |
0 |
0 |
| CDI |
0 |
0 |
7 |
83 |
373 |
2074 |
924 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
187 |
495 |
4257 |
1140 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13984 |
4929 |
38 |
24 |
0 |
0 |
0 |
0 |
| OW |
0 |
705 |
214 |
288 |
7 |
0 |
0 |
0 |
| VODI |
0 |
55 |
87 |
745 |
489 |
7 |
0 |
0 |
| ODI |
0 |
7 |
22 |
112 |
1615 |
364 |
0 |
0 |
| CDI |
0 |
0 |
5 |
64 |
321 |
2014 |
1028 |
0 |
| VCDI |
0 |
0 |
0 |
21 |
190 |
468 |
4153 |
1140 |
|
Date: 2023-09-30:
| 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 |
13481 |
4456 |
32 |
57 |
12 |
0 |
0 |
0 |
| OW |
0 |
930 |
168 |
395 |
55 |
9 |
0 |
0 |
| VODI |
0 |
86 |
78 |
623 |
524 |
52 |
10 |
0 |
| ODI |
0 |
0 |
3 |
114 |
669 |
1115 |
17 |
0 |
| CDI |
0 |
0 |
0 |
68 |
239 |
2153 |
902 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
49 |
545 |
3882 |
2372 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13481 |
4616 |
55 |
76 |
11 |
0 |
0 |
0 |
| OW |
0 |
791 |
154 |
466 |
73 |
10 |
0 |
0 |
| VODI |
0 |
65 |
72 |
526 |
634 |
125 |
7 |
0 |
| ODI |
0 |
0 |
0 |
112 |
584 |
1237 |
10 |
0 |
| CDI |
0 |
0 |
0 |
72 |
163 |
1974 |
1025 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
83 |
528 |
3769 |
2372 |
|
Date: 2023-10-02:
| 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 |
11678 |
6003 |
26 |
12 |
0 |
0 |
0 |
0 |
| OW |
0 |
615 |
254 |
177 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
40 |
638 |
118 |
1 |
0 |
0 |
| ODI |
0 |
0 |
0 |
93 |
539 |
39 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
364 |
1797 |
94 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
1429 |
4817 |
4362 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11669 |
5741 |
79 |
53 |
0 |
0 |
0 |
0 |
| OW |
9 |
798 |
174 |
449 |
104 |
55 |
0 |
0 |
| VODI |
0 |
79 |
65 |
337 |
471 |
305 |
36 |
0 |
| ODI |
0 |
0 |
2 |
80 |
258 |
616 |
151 |
0 |
| CDI |
0 |
0 |
0 |
1 |
188 |
1779 |
853 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
511 |
3871 |
4362 |
|
Date: 2023-10-04:
| 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 |
12084 |
5729 |
31 |
6 |
0 |
0 |
0 |
0 |
| OW |
0 |
460 |
202 |
235 |
15 |
0 |
0 |
0 |
| VODI |
0 |
58 |
70 |
321 |
162 |
0 |
0 |
0 |
| ODI |
0 |
19 |
11 |
211 |
268 |
61 |
0 |
0 |
| CDI |
0 |
1 |
18 |
97 |
528 |
519 |
104 |
0 |
| VCDI |
0 |
0 |
0 |
25 |
227 |
3105 |
5855 |
2674 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12033 |
5309 |
66 |
73 |
3 |
0 |
0 |
0 |
| OW |
45 |
746 |
154 |
298 |
150 |
0 |
0 |
0 |
| VODI |
6 |
159 |
69 |
327 |
337 |
197 |
23 |
0 |
| ODI |
0 |
48 |
29 |
82 |
346 |
367 |
130 |
0 |
| CDI |
0 |
5 |
14 |
103 |
280 |
912 |
502 |
0 |
| VCDI |
0 |
0 |
0 |
12 |
84 |
2209 |
5304 |
2674 |
|
Date: 2023-10-06:
| 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 |
11138 |
6365 |
16 |
4 |
0 |
0 |
0 |
0 |
| OW |
0 |
663 |
162 |
323 |
53 |
0 |
0 |
0 |
| VODI |
0 |
106 |
108 |
278 |
143 |
47 |
0 |
0 |
| ODI |
0 |
12 |
20 |
233 |
155 |
54 |
3 |
0 |
| CDI |
0 |
4 |
12 |
165 |
428 |
356 |
56 |
0 |
| VCDI |
0 |
0 |
0 |
48 |
288 |
2147 |
5463 |
4246 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11044 |
5996 |
57 |
45 |
0 |
0 |
0 |
0 |
| OW |
87 |
885 |
118 |
334 |
94 |
2 |
0 |
0 |
| VODI |
7 |
221 |
85 |
352 |
342 |
137 |
32 |
0 |
| ODI |
0 |
38 |
43 |
178 |
224 |
261 |
291 |
0 |
| CDI |
0 |
10 |
15 |
131 |
338 |
490 |
687 |
0 |
| VCDI |
0 |
0 |
0 |
11 |
69 |
1714 |
4512 |
4246 |
|
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