Validation of sea ice concentration - Asian sector
Bulletin date: 2023-07-06
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-06-30:
| 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 |
258 |
3323 |
288 |
371 |
71 |
1 |
0 |
0 |
| OW |
1 |
256 |
208 |
435 |
275 |
65 |
1 |
0 |
| VODI |
0 |
95 |
93 |
562 |
977 |
633 |
18 |
0 |
| ODI |
0 |
19 |
28 |
275 |
1393 |
1229 |
28 |
0 |
| CDI |
0 |
3 |
14 |
135 |
753 |
7080 |
1214 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
47 |
2869 |
9042 |
21 |
|
...date precedes bulletin
|
Date: 2023-07-02:
| 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 |
267 |
3473 |
278 |
359 |
82 |
6 |
0 |
0 |
| OW |
0 |
289 |
210 |
475 |
380 |
117 |
1 |
0 |
| VODI |
0 |
85 |
101 |
616 |
1039 |
906 |
35 |
0 |
| ODI |
0 |
31 |
24 |
246 |
1145 |
1219 |
48 |
0 |
| CDI |
0 |
17 |
9 |
139 |
702 |
8991 |
1355 |
0 |
| VCDI |
0 |
0 |
0 |
12 |
90 |
3896 |
5439 |
0 |
|
...date precedes bulletin
|
Date: 2023-07-04:
| 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 |
154 |
3855 |
285 |
287 |
74 |
7 |
0 |
0 |
| OW |
0 |
278 |
220 |
419 |
198 |
18 |
1 |
0 |
| VODI |
0 |
81 |
180 |
846 |
702 |
131 |
7 |
0 |
| ODI |
0 |
19 |
26 |
374 |
2182 |
1136 |
24 |
0 |
| CDI |
0 |
0 |
1 |
96 |
928 |
9652 |
1088 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
75 |
3580 |
5153 |
0 |
|
...date precedes bulletin
|
Date: 2023-07-06:
| 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 |
616 |
3672 |
233 |
280 |
40 |
13 |
0 |
0 |
| OW |
0 |
394 |
231 |
469 |
218 |
39 |
3 |
0 |
| VODI |
0 |
233 |
187 |
908 |
846 |
159 |
23 |
0 |
| ODI |
0 |
19 |
30 |
307 |
1873 |
1230 |
19 |
0 |
| CDI |
0 |
9 |
20 |
115 |
1900 |
9271 |
809 |
0 |
| VCDI |
0 |
1 |
0 |
12 |
146 |
4780 |
2977 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
616 |
3652 |
237 |
309 |
66 |
13 |
0 |
0 |
| OW |
0 |
403 |
220 |
418 |
216 |
35 |
11 |
0 |
| VODI |
0 |
238 |
192 |
903 |
834 |
154 |
20 |
0 |
| ODI |
0 |
26 |
33 |
336 |
1804 |
1181 |
12 |
0 |
| CDI |
0 |
8 |
19 |
113 |
1953 |
9223 |
729 |
0 |
| VCDI |
0 |
1 |
0 |
12 |
150 |
4886 |
3059 |
0 |
|
Date: 2023-07-08:
| 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 |
578 |
3850 |
235 |
271 |
64 |
18 |
0 |
0 |
| OW |
0 |
500 |
290 |
557 |
294 |
57 |
6 |
0 |
| VODI |
0 |
237 |
190 |
864 |
1090 |
216 |
8 |
0 |
| ODI |
0 |
25 |
34 |
241 |
2113 |
755 |
12 |
0 |
| CDI |
0 |
17 |
25 |
136 |
4065 |
7089 |
646 |
0 |
| VCDI |
0 |
1 |
0 |
15 |
99 |
4502 |
2982 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
578 |
3832 |
253 |
270 |
83 |
17 |
0 |
0 |
| OW |
0 |
513 |
264 |
544 |
290 |
75 |
7 |
0 |
| VODI |
0 |
240 |
199 |
866 |
1102 |
212 |
7 |
0 |
| ODI |
0 |
28 |
32 |
253 |
2059 |
726 |
13 |
0 |
| CDI |
0 |
16 |
26 |
135 |
4083 |
7069 |
587 |
0 |
| VCDI |
0 |
1 |
0 |
16 |
108 |
4538 |
3040 |
0 |
|
Date: 2023-07-10:
| 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 |
595 |
4563 |
286 |
244 |
59 |
20 |
0 |
0 |
| OW |
0 |
405 |
282 |
365 |
128 |
30 |
0 |
0 |
| VODI |
0 |
125 |
149 |
870 |
679 |
117 |
0 |
0 |
| ODI |
0 |
20 |
23 |
345 |
3614 |
1463 |
8 |
0 |
| CDI |
0 |
5 |
9 |
75 |
2467 |
9456 |
592 |
0 |
| VCDI |
0 |
1 |
0 |
6 |
289 |
2124 |
2668 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
595 |
4120 |
275 |
326 |
133 |
37 |
0 |
0 |
| OW |
0 |
675 |
224 |
431 |
322 |
117 |
0 |
0 |
| VODI |
0 |
253 |
194 |
738 |
1155 |
463 |
0 |
0 |
| ODI |
0 |
39 |
30 |
192 |
1438 |
1221 |
32 |
0 |
| CDI |
0 |
31 |
26 |
208 |
3660 |
7615 |
765 |
0 |
| VCDI |
0 |
1 |
0 |
10 |
528 |
3757 |
2471 |
0 |
|
Date: 2023-07-12:
| 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 |
599 |
4902 |
339 |
326 |
63 |
14 |
0 |
0 |
| OW |
0 |
398 |
209 |
471 |
192 |
26 |
0 |
0 |
| VODI |
0 |
162 |
176 |
932 |
831 |
68 |
0 |
0 |
| ODI |
0 |
36 |
20 |
465 |
4481 |
1481 |
16 |
0 |
| CDI |
0 |
11 |
24 |
80 |
2071 |
8437 |
1182 |
0 |
| VCDI |
0 |
1 |
0 |
9 |
369 |
1851 |
1840 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
599 |
4497 |
263 |
349 |
180 |
22 |
0 |
0 |
| OW |
0 |
666 |
250 |
509 |
361 |
48 |
0 |
0 |
| VODI |
0 |
255 |
173 |
989 |
1474 |
141 |
0 |
0 |
| ODI |
0 |
53 |
49 |
260 |
2162 |
876 |
2 |
0 |
| CDI |
0 |
38 |
33 |
166 |
3435 |
7275 |
1178 |
0 |
| VCDI |
0 |
1 |
0 |
10 |
395 |
3515 |
1858 |
0 |
|
Date: 2023-07-14:
| 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 |
1496 |
4378 |
306 |
326 |
99 |
16 |
1 |
0 |
| OW |
0 |
583 |
269 |
555 |
176 |
10 |
1 |
0 |
| VODI |
0 |
195 |
212 |
1023 |
922 |
99 |
6 |
0 |
| ODI |
0 |
32 |
41 |
614 |
5197 |
1554 |
8 |
0 |
| CDI |
0 |
22 |
25 |
136 |
2922 |
7134 |
221 |
0 |
| VCDI |
0 |
1 |
0 |
10 |
600 |
1976 |
916 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1496 |
4040 |
254 |
392 |
256 |
37 |
1 |
0 |
| OW |
0 |
699 |
274 |
637 |
331 |
14 |
0 |
0 |
| VODI |
0 |
325 |
200 |
986 |
1404 |
122 |
9 |
0 |
| ODI |
0 |
100 |
78 |
375 |
2580 |
1028 |
17 |
0 |
| CDI |
0 |
46 |
47 |
271 |
4583 |
6042 |
276 |
0 |
| VCDI |
0 |
1 |
0 |
3 |
762 |
3546 |
850 |
0 |
|
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