Validation of sea ice concentration - Asian sector
Bulletin date: 2023-07-13
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-07-07:
| 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 |
616 |
3681 |
281 |
298 |
32 |
15 |
0 |
0 |
| OW |
0 |
423 |
261 |
527 |
237 |
51 |
4 |
0 |
| VODI |
0 |
209 |
188 |
977 |
954 |
140 |
38 |
0 |
| ODI |
0 |
28 |
31 |
281 |
2167 |
842 |
27 |
0 |
| CDI |
0 |
13 |
23 |
121 |
2516 |
8718 |
585 |
0 |
| VCDI |
0 |
1 |
0 |
13 |
259 |
4791 |
2734 |
0 |
|
...date precedes bulletin
|
Date: 2023-07-09:
| 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 |
589 |
3954 |
244 |
246 |
91 |
19 |
0 |
0 |
| OW |
0 |
619 |
291 |
518 |
360 |
84 |
0 |
0 |
| VODI |
0 |
258 |
173 |
811 |
1213 |
272 |
4 |
0 |
| ODI |
0 |
34 |
22 |
232 |
1864 |
747 |
32 |
0 |
| CDI |
0 |
28 |
22 |
173 |
4023 |
7303 |
469 |
0 |
| VCDI |
0 |
1 |
0 |
13 |
108 |
4891 |
2374 |
0 |
|
...date precedes bulletin
|
Date: 2023-07-11:
| 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 |
607 |
4837 |
323 |
273 |
69 |
10 |
0 |
0 |
| OW |
0 |
315 |
235 |
447 |
175 |
14 |
0 |
0 |
| VODI |
0 |
116 |
135 |
826 |
880 |
48 |
0 |
0 |
| ODI |
0 |
19 |
20 |
379 |
4207 |
1337 |
8 |
0 |
| CDI |
0 |
3 |
14 |
81 |
2071 |
9244 |
954 |
0 |
| VCDI |
0 |
1 |
0 |
8 |
423 |
1525 |
2478 |
0 |
|
...date precedes bulletin
|
Date: 2023-07-13:
| 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 |
601 |
5018 |
343 |
343 |
98 |
24 |
0 |
0 |
| OW |
0 |
472 |
253 |
515 |
186 |
23 |
0 |
0 |
| VODI |
0 |
147 |
197 |
1042 |
832 |
82 |
0 |
0 |
| ODI |
0 |
30 |
26 |
534 |
4934 |
1435 |
4 |
0 |
| CDI |
0 |
21 |
23 |
107 |
2891 |
7654 |
360 |
0 |
| VCDI |
0 |
1 |
0 |
10 |
326 |
2062 |
1488 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
601 |
5089 |
368 |
367 |
130 |
25 |
0 |
0 |
| OW |
0 |
380 |
228 |
487 |
213 |
28 |
0 |
0 |
| VODI |
0 |
167 |
184 |
1044 |
924 |
87 |
0 |
0 |
| ODI |
0 |
33 |
40 |
532 |
4684 |
1342 |
4 |
0 |
| CDI |
0 |
19 |
22 |
111 |
2984 |
7586 |
404 |
0 |
| VCDI |
0 |
1 |
0 |
10 |
332 |
2212 |
1444 |
0 |
|
Date: 2023-07-15:
| 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 |
1487 |
4609 |
288 |
333 |
88 |
7 |
0 |
0 |
| OW |
0 |
563 |
310 |
605 |
226 |
19 |
0 |
0 |
| VODI |
0 |
189 |
215 |
1079 |
1008 |
160 |
3 |
0 |
| ODI |
0 |
28 |
40 |
686 |
5195 |
1707 |
6 |
0 |
| CDI |
0 |
33 |
21 |
133 |
2761 |
6422 |
598 |
0 |
| VCDI |
0 |
1 |
0 |
14 |
513 |
1808 |
927 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1487 |
4701 |
314 |
396 |
144 |
16 |
0 |
0 |
| OW |
0 |
469 |
269 |
535 |
211 |
41 |
0 |
0 |
| VODI |
0 |
170 |
220 |
1177 |
1069 |
134 |
2 |
0 |
| ODI |
0 |
52 |
49 |
596 |
4849 |
1577 |
7 |
0 |
| CDI |
0 |
30 |
22 |
139 |
3018 |
6274 |
595 |
0 |
| VCDI |
0 |
1 |
0 |
7 |
500 |
2081 |
930 |
0 |
|
Date: 2023-07-17:
| 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 |
1569 |
5418 |
323 |
272 |
45 |
3 |
0 |
0 |
| OW |
0 |
529 |
335 |
503 |
64 |
8 |
0 |
0 |
| VODI |
0 |
138 |
194 |
1746 |
850 |
9 |
0 |
0 |
| ODI |
0 |
24 |
21 |
658 |
6606 |
796 |
0 |
0 |
| CDI |
0 |
8 |
12 |
54 |
1580 |
8883 |
258 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
10 |
670 |
496 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1569 |
5026 |
306 |
418 |
148 |
3 |
0 |
0 |
| OW |
0 |
648 |
241 |
493 |
230 |
28 |
0 |
0 |
| VODI |
0 |
316 |
250 |
1361 |
1369 |
84 |
0 |
0 |
| ODI |
0 |
80 |
56 |
821 |
5064 |
1237 |
0 |
0 |
| CDI |
0 |
46 |
32 |
122 |
2301 |
6804 |
147 |
0 |
| VCDI |
0 |
1 |
0 |
18 |
43 |
2213 |
607 |
0 |
|
Date: 2023-07-19:
| 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 |
1581 |
6136 |
406 |
307 |
30 |
3 |
0 |
0 |
| OW |
0 |
464 |
349 |
716 |
93 |
4 |
0 |
0 |
| VODI |
0 |
79 |
162 |
1812 |
1341 |
32 |
0 |
0 |
| ODI |
0 |
18 |
19 |
482 |
6111 |
826 |
3 |
0 |
| CDI |
0 |
14 |
10 |
60 |
2318 |
7899 |
48 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
640 |
117 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1581 |
5500 |
340 |
427 |
142 |
7 |
0 |
0 |
| OW |
0 |
689 |
255 |
565 |
249 |
27 |
1 |
0 |
| VODI |
0 |
402 |
274 |
1612 |
1640 |
106 |
4 |
0 |
| ODI |
0 |
67 |
41 |
630 |
5212 |
871 |
7 |
0 |
| CDI |
0 |
53 |
36 |
134 |
2557 |
6166 |
31 |
0 |
| VCDI |
0 |
0 |
0 |
9 |
95 |
2227 |
125 |
0 |
|
Date: 2023-07-21:
| 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 |
1341 |
7055 |
443 |
255 |
39 |
4 |
0 |
0 |
| OW |
0 |
434 |
380 |
1012 |
174 |
2 |
0 |
0 |
| VODI |
0 |
94 |
95 |
1526 |
1787 |
74 |
0 |
0 |
| ODI |
0 |
21 |
30 |
402 |
5349 |
1051 |
1 |
0 |
| CDI |
0 |
8 |
10 |
54 |
2730 |
7052 |
62 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
517 |
79 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1341 |
6173 |
366 |
514 |
274 |
11 |
0 |
0 |
| OW |
0 |
724 |
203 |
470 |
447 |
20 |
0 |
0 |
| VODI |
0 |
548 |
288 |
1572 |
2034 |
306 |
0 |
0 |
| ODI |
0 |
101 |
62 |
527 |
4350 |
1054 |
5 |
0 |
| CDI |
0 |
65 |
34 |
151 |
2899 |
5084 |
15 |
0 |
| VCDI |
0 |
1 |
5 |
15 |
76 |
2225 |
122 |
0 |
|
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