Validation of sea ice concentration - Asian sector
Bulletin date: 2023-10-19
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-10-13:
| 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 |
8462 |
5917 |
207 |
257 |
29 |
0 |
0 |
0 |
| OW |
82 |
682 |
129 |
315 |
144 |
2 |
0 |
0 |
| VODI |
6 |
163 |
81 |
441 |
351 |
47 |
0 |
0 |
| ODI |
0 |
2 |
2 |
72 |
302 |
130 |
0 |
0 |
| CDI |
0 |
3 |
8 |
28 |
302 |
310 |
21 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
130 |
2143 |
5792 |
5519 |
|
...date precedes bulletin
|
Date: 2023-10-15:
| 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 |
5391 |
7875 |
262 |
270 |
29 |
0 |
0 |
0 |
| OW |
13 |
681 |
177 |
403 |
245 |
3 |
0 |
0 |
| VODI |
0 |
92 |
73 |
520 |
717 |
63 |
0 |
0 |
| ODI |
0 |
0 |
3 |
68 |
397 |
176 |
1 |
0 |
| CDI |
0 |
0 |
1 |
54 |
282 |
417 |
3 |
0 |
| VCDI |
0 |
0 |
0 |
11 |
204 |
1672 |
5814 |
6165 |
|
...date precedes bulletin
|
Date: 2023-10-17:
| 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 |
3618 |
7442 |
461 |
794 |
130 |
0 |
0 |
0 |
| OW |
1 |
646 |
189 |
421 |
205 |
13 |
0 |
0 |
| VODI |
0 |
31 |
40 |
333 |
569 |
63 |
0 |
0 |
| ODI |
0 |
0 |
0 |
52 |
528 |
424 |
0 |
0 |
| CDI |
0 |
0 |
0 |
14 |
194 |
889 |
317 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
115 |
1404 |
5812 |
7377 |
|
...date precedes bulletin
|
Date: 2023-10-19:
| 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 |
3408 |
4618 |
454 |
1035 |
407 |
31 |
0 |
0 |
| OW |
8 |
707 |
210 |
711 |
682 |
120 |
0 |
0 |
| VODI |
0 |
117 |
88 |
438 |
726 |
214 |
0 |
0 |
| ODI |
0 |
6 |
10 |
77 |
428 |
426 |
0 |
0 |
| CDI |
0 |
0 |
0 |
17 |
191 |
1033 |
217 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
144 |
1939 |
7239 |
6379 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
3402 |
4931 |
474 |
1092 |
498 |
45 |
0 |
0 |
| OW |
14 |
389 |
182 |
609 |
560 |
50 |
0 |
0 |
| VODI |
0 |
121 |
97 |
503 |
758 |
244 |
0 |
0 |
| ODI |
0 |
7 |
8 |
55 |
431 |
481 |
0 |
0 |
| CDI |
0 |
0 |
1 |
15 |
181 |
1075 |
281 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
150 |
1868 |
7175 |
6379 |
|
Date: 2023-10-21:
| 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 |
3225 |
3999 |
283 |
370 |
321 |
30 |
0 |
0 |
| OW |
0 |
677 |
248 |
640 |
611 |
329 |
0 |
0 |
| VODI |
0 |
241 |
144 |
615 |
882 |
509 |
1 |
0 |
| ODI |
0 |
16 |
34 |
224 |
539 |
498 |
0 |
0 |
| CDI |
0 |
5 |
13 |
82 |
356 |
946 |
43 |
0 |
| VCDI |
0 |
3 |
6 |
27 |
304 |
2772 |
10548 |
2541 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
3225 |
4253 |
307 |
418 |
392 |
45 |
0 |
0 |
| OW |
0 |
503 |
243 |
633 |
527 |
310 |
0 |
0 |
| VODI |
0 |
161 |
118 |
537 |
917 |
449 |
1 |
0 |
| ODI |
0 |
18 |
39 |
260 |
539 |
590 |
0 |
0 |
| CDI |
0 |
3 |
15 |
84 |
326 |
891 |
55 |
0 |
| VCDI |
0 |
3 |
6 |
26 |
312 |
2799 |
10536 |
2541 |
|
Date: 2023-10-23:
| 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 |
2930 |
3500 |
104 |
329 |
114 |
0 |
0 |
0 |
| OW |
0 |
596 |
209 |
356 |
252 |
9 |
0 |
0 |
| VODI |
0 |
109 |
159 |
662 |
654 |
146 |
0 |
0 |
| ODI |
0 |
2 |
4 |
155 |
1599 |
1402 |
12 |
0 |
| CDI |
0 |
0 |
0 |
31 |
508 |
2109 |
104 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
140 |
3584 |
9392 |
2908 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2930 |
3618 |
192 |
539 |
475 |
62 |
0 |
0 |
| OW |
0 |
385 |
129 |
390 |
464 |
476 |
6 |
0 |
| VODI |
0 |
183 |
117 |
306 |
983 |
1093 |
25 |
0 |
| ODI |
0 |
20 |
35 |
188 |
647 |
849 |
19 |
0 |
| CDI |
0 |
1 |
3 |
84 |
395 |
856 |
62 |
0 |
| VCDI |
0 |
0 |
0 |
29 |
303 |
3914 |
9396 |
2908 |
|
Date: 2023-10-25:
| 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 |
2233 |
3061 |
134 |
287 |
277 |
37 |
0 |
0 |
| OW |
0 |
302 |
128 |
216 |
413 |
177 |
1 |
0 |
| VODI |
0 |
42 |
64 |
333 |
648 |
362 |
15 |
0 |
| ODI |
0 |
5 |
8 |
106 |
777 |
972 |
57 |
0 |
| CDI |
0 |
0 |
0 |
17 |
1060 |
2771 |
283 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
193 |
3030 |
10304 |
3769 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2233 |
3090 |
146 |
251 |
475 |
247 |
11 |
0 |
| OW |
0 |
213 |
101 |
236 |
534 |
624 |
66 |
0 |
| VODI |
0 |
91 |
60 |
272 |
851 |
1257 |
60 |
0 |
| ODI |
0 |
15 |
25 |
144 |
698 |
1444 |
147 |
0 |
| CDI |
0 |
1 |
2 |
51 |
469 |
1371 |
275 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
341 |
2406 |
10101 |
3769 |
|
Date: 2023-10-27:
| 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 |
1354 |
2120 |
151 |
428 |
231 |
69 |
0 |
0 |
| OW |
0 |
229 |
190 |
611 |
325 |
233 |
2 |
0 |
| VODI |
0 |
3 |
17 |
152 |
532 |
693 |
49 |
0 |
| ODI |
0 |
0 |
0 |
15 |
366 |
988 |
146 |
0 |
| CDI |
0 |
0 |
0 |
0 |
421 |
2245 |
522 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
157 |
3160 |
8853 |
7820 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1354 |
2161 |
234 |
626 |
402 |
333 |
0 |
0 |
| OW |
0 |
157 |
69 |
355 |
205 |
624 |
15 |
0 |
| VODI |
0 |
34 |
51 |
164 |
388 |
1450 |
325 |
0 |
| ODI |
0 |
0 |
4 |
49 |
383 |
1581 |
485 |
0 |
| CDI |
0 |
0 |
0 |
12 |
397 |
1775 |
976 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
257 |
1625 |
7771 |
7820 |
|
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