Validation of sea ice concentration - Asian sector
Bulletin date: 2023-10-26
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-10-20:
| 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 |
3202 |
4460 |
307 |
446 |
380 |
5 |
0 |
0 |
| OW |
0 |
634 |
272 |
697 |
805 |
253 |
0 |
0 |
| VODI |
0 |
140 |
102 |
563 |
947 |
397 |
0 |
0 |
| ODI |
0 |
18 |
9 |
123 |
430 |
462 |
3 |
0 |
| CDI |
0 |
6 |
6 |
38 |
287 |
903 |
80 |
0 |
| VCDI |
0 |
1 |
5 |
26 |
314 |
2391 |
8975 |
4395 |
|
...date precedes bulletin
|
Date: 2023-10-22:
| 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 |
2999 |
3795 |
217 |
535 |
291 |
0 |
0 |
0 |
| OW |
0 |
647 |
169 |
435 |
793 |
130 |
0 |
0 |
| VODI |
0 |
327 |
144 |
521 |
1198 |
436 |
0 |
0 |
| ODI |
0 |
27 |
56 |
313 |
805 |
341 |
0 |
0 |
| CDI |
0 |
2 |
12 |
167 |
498 |
656 |
10 |
0 |
| VCDI |
0 |
0 |
1 |
27 |
410 |
3023 |
12633 |
464 |
|
...date precedes bulletin
|
Date: 2023-10-24:
| 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 |
2691 |
3295 |
103 |
306 |
243 |
0 |
0 |
0 |
| OW |
0 |
439 |
141 |
276 |
349 |
56 |
0 |
0 |
| VODI |
0 |
84 |
94 |
374 |
813 |
132 |
6 |
0 |
| ODI |
0 |
3 |
7 |
126 |
1229 |
1050 |
32 |
0 |
| CDI |
0 |
0 |
0 |
42 |
870 |
2366 |
222 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
70 |
3998 |
9985 |
2679 |
|
...date precedes bulletin
|
Date: 2023-10-26:
| 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 |
2003 |
2224 |
248 |
546 |
254 |
43 |
0 |
0 |
| OW |
0 |
257 |
139 |
306 |
340 |
208 |
0 |
0 |
| VODI |
0 |
5 |
13 |
251 |
696 |
520 |
25 |
0 |
| ODI |
0 |
0 |
0 |
73 |
663 |
801 |
109 |
0 |
| CDI |
0 |
0 |
0 |
18 |
628 |
2676 |
555 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
298 |
3008 |
9532 |
5643 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2003 |
2324 |
272 |
611 |
320 |
107 |
0 |
0 |
| OW |
0 |
159 |
117 |
251 |
263 |
175 |
0 |
0 |
| VODI |
0 |
3 |
11 |
249 |
714 |
492 |
7 |
0 |
| ODI |
0 |
0 |
0 |
67 |
546 |
693 |
94 |
0 |
| CDI |
0 |
0 |
0 |
16 |
702 |
2502 |
424 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
334 |
3287 |
9696 |
5643 |
|
Date: 2023-10-28:
| 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 |
1676 |
1440 |
101 |
235 |
103 |
16 |
0 |
0 |
| OW |
0 |
179 |
121 |
505 |
733 |
198 |
1 |
0 |
| VODI |
0 |
2 |
7 |
220 |
496 |
671 |
83 |
0 |
| ODI |
0 |
0 |
0 |
9 |
242 |
995 |
180 |
0 |
| CDI |
0 |
0 |
0 |
1 |
172 |
2005 |
645 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
126 |
2760 |
8952 |
9208 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1676 |
1544 |
139 |
362 |
289 |
39 |
0 |
0 |
| OW |
0 |
77 |
87 |
443 |
580 |
189 |
10 |
0 |
| VODI |
0 |
0 |
3 |
155 |
461 |
612 |
61 |
0 |
| ODI |
0 |
0 |
0 |
7 |
221 |
919 |
138 |
0 |
| CDI |
0 |
0 |
0 |
3 |
195 |
1920 |
612 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
126 |
2966 |
9040 |
9208 |
|
Date: 2023-10-30:
| 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 |
873 |
2096 |
32 |
35 |
1 |
0 |
0 |
0 |
| OW |
0 |
145 |
66 |
113 |
114 |
5 |
0 |
0 |
| VODI |
0 |
23 |
41 |
354 |
384 |
55 |
0 |
0 |
| ODI |
0 |
0 |
0 |
28 |
678 |
644 |
7 |
0 |
| CDI |
0 |
0 |
0 |
1 |
338 |
2431 |
189 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
47 |
2601 |
8532 |
12249 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
873 |
2085 |
54 |
145 |
97 |
5 |
0 |
0 |
| OW |
0 |
168 |
75 |
306 |
410 |
214 |
1 |
0 |
| VODI |
0 |
11 |
10 |
68 |
600 |
871 |
18 |
0 |
| ODI |
0 |
0 |
0 |
7 |
129 |
800 |
103 |
0 |
| CDI |
0 |
0 |
0 |
5 |
134 |
1298 |
564 |
12 |
| VCDI |
0 |
0 |
0 |
0 |
192 |
2548 |
8042 |
12237 |
|
Date: 2023-11-01:
| 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 |
1406 |
1662 |
4 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
215 |
48 |
46 |
26 |
5 |
0 |
0 |
| VODI |
0 |
25 |
46 |
142 |
190 |
175 |
3 |
0 |
| ODI |
0 |
0 |
4 |
52 |
311 |
339 |
15 |
0 |
| CDI |
0 |
0 |
0 |
1 |
462 |
902 |
294 |
1 |
| VCDI |
0 |
0 |
0 |
0 |
249 |
3481 |
11272 |
10706 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1395 |
1544 |
11 |
6 |
3 |
0 |
0 |
0 |
| OW |
11 |
318 |
57 |
119 |
164 |
135 |
6 |
0 |
| VODI |
0 |
40 |
33 |
104 |
438 |
841 |
192 |
0 |
| ODI |
0 |
0 |
1 |
9 |
169 |
468 |
339 |
0 |
| CDI |
0 |
0 |
0 |
3 |
120 |
613 |
646 |
35 |
| VCDI |
0 |
0 |
0 |
0 |
344 |
2845 |
10401 |
10672 |
|
Date: 2023-11-03:
| 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 |
1557 |
1609 |
3 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
282 |
11 |
22 |
11 |
0 |
0 |
0 |
| VODI |
0 |
137 |
51 |
63 |
46 |
70 |
3 |
0 |
| ODI |
0 |
34 |
40 |
99 |
101 |
278 |
66 |
0 |
| CDI |
0 |
3 |
17 |
77 |
355 |
438 |
192 |
5 |
| VCDI |
0 |
0 |
0 |
13 |
671 |
3601 |
10385 |
11842 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1518 |
1462 |
3 |
0 |
0 |
0 |
0 |
0 |
| OW |
39 |
411 |
26 |
41 |
33 |
13 |
5 |
0 |
| VODI |
0 |
183 |
61 |
131 |
122 |
493 |
127 |
0 |
| ODI |
0 |
9 |
30 |
50 |
217 |
291 |
314 |
0 |
| CDI |
0 |
0 |
1 |
32 |
316 |
474 |
464 |
4 |
| VCDI |
0 |
0 |
1 |
20 |
496 |
3116 |
9736 |
11843 |
|
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