Validation of sea ice concentration - Asian sector
Bulletin date: 2023-09-07
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-09-01:
| 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 |
8360 |
8059 |
1074 |
221 |
0 |
0 |
0 |
0 |
| OW |
0 |
299 |
160 |
268 |
10 |
0 |
0 |
0 |
| VODI |
0 |
117 |
190 |
1203 |
445 |
5 |
0 |
0 |
| ODI |
0 |
9 |
21 |
617 |
3666 |
578 |
0 |
0 |
| CDI |
0 |
0 |
0 |
37 |
2351 |
4211 |
180 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
|
...date precedes bulletin
|
Date: 2023-09-03:
| 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 |
8588 |
8708 |
169 |
94 |
5 |
0 |
0 |
0 |
| OW |
0 |
377 |
184 |
234 |
45 |
3 |
0 |
0 |
| VODI |
0 |
119 |
212 |
1209 |
427 |
11 |
0 |
0 |
| ODI |
0 |
3 |
13 |
1140 |
3426 |
270 |
0 |
0 |
| CDI |
0 |
0 |
0 |
68 |
3264 |
3480 |
10 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
23 |
0 |
0 |
|
...date precedes bulletin
|
Date: 2023-09-05:
| 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 |
8680 |
8915 |
220 |
77 |
5 |
0 |
0 |
0 |
| OW |
0 |
234 |
203 |
214 |
27 |
0 |
0 |
0 |
| VODI |
0 |
43 |
163 |
1387 |
456 |
2 |
0 |
0 |
| ODI |
0 |
0 |
3 |
769 |
4681 |
465 |
0 |
0 |
| CDI |
0 |
0 |
0 |
13 |
1544 |
3782 |
199 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
...date precedes bulletin
|
Date: 2023-09-07:
| 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 |
9264 |
8165 |
224 |
230 |
18 |
0 |
0 |
0 |
| OW |
0 |
323 |
180 |
264 |
26 |
0 |
0 |
0 |
| VODI |
0 |
115 |
149 |
1324 |
486 |
0 |
0 |
0 |
| ODI |
0 |
3 |
25 |
601 |
3730 |
1397 |
0 |
0 |
| CDI |
0 |
0 |
0 |
79 |
1875 |
3408 |
156 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
40 |
0 |
0 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9264 |
8216 |
249 |
266 |
19 |
0 |
0 |
0 |
| OW |
0 |
278 |
151 |
239 |
34 |
0 |
0 |
0 |
| VODI |
0 |
105 |
156 |
1298 |
543 |
0 |
0 |
0 |
| ODI |
0 |
7 |
22 |
637 |
3477 |
1324 |
3 |
0 |
| CDI |
0 |
0 |
0 |
58 |
2057 |
3481 |
153 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
45 |
0 |
0 |
0 |
|
Date: 2023-09-09:
| 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 |
11485 |
6177 |
96 |
87 |
7 |
0 |
0 |
0 |
| OW |
0 |
480 |
145 |
267 |
30 |
0 |
0 |
0 |
| VODI |
0 |
157 |
205 |
1236 |
521 |
0 |
0 |
0 |
| ODI |
0 |
18 |
38 |
775 |
3981 |
914 |
1 |
0 |
| CDI |
0 |
1 |
1 |
79 |
1985 |
3357 |
39 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11485 |
6297 |
137 |
126 |
7 |
0 |
0 |
0 |
| OW |
0 |
347 |
122 |
280 |
34 |
0 |
0 |
0 |
| VODI |
0 |
167 |
197 |
1150 |
523 |
2 |
0 |
0 |
| ODI |
0 |
21 |
28 |
812 |
3753 |
926 |
0 |
0 |
| CDI |
0 |
1 |
1 |
76 |
2207 |
3343 |
40 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Date: 2023-09-11:
| 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 |
12108 |
6131 |
72 |
75 |
7 |
0 |
0 |
0 |
| OW |
0 |
494 |
208 |
249 |
32 |
0 |
0 |
0 |
| VODI |
0 |
125 |
176 |
1570 |
419 |
1 |
0 |
0 |
| ODI |
0 |
5 |
14 |
684 |
5572 |
404 |
0 |
0 |
| CDI |
0 |
0 |
0 |
1 |
791 |
2940 |
4 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12106 |
5848 |
78 |
104 |
19 |
0 |
0 |
0 |
| OW |
2 |
508 |
105 |
236 |
53 |
0 |
0 |
0 |
| VODI |
0 |
332 |
220 |
1020 |
388 |
8 |
0 |
0 |
| ODI |
0 |
63 |
62 |
1063 |
3325 |
256 |
0 |
0 |
| CDI |
0 |
4 |
5 |
156 |
3036 |
3081 |
4 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Date: 2023-09-13:
| 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 |
10973 |
7376 |
105 |
81 |
1 |
0 |
0 |
0 |
| OW |
0 |
590 |
195 |
394 |
45 |
0 |
0 |
0 |
| VODI |
0 |
148 |
177 |
1303 |
350 |
4 |
0 |
0 |
| ODI |
0 |
8 |
21 |
803 |
4953 |
413 |
0 |
0 |
| CDI |
0 |
0 |
0 |
2 |
1314 |
2826 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10973 |
7060 |
105 |
133 |
12 |
0 |
0 |
0 |
| OW |
0 |
543 |
99 |
262 |
65 |
0 |
0 |
0 |
| VODI |
0 |
440 |
213 |
940 |
286 |
6 |
0 |
0 |
| ODI |
0 |
79 |
71 |
1063 |
2988 |
258 |
0 |
0 |
| CDI |
0 |
0 |
10 |
185 |
3312 |
2976 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
3 |
0 |
0 |
|
Date: 2023-09-15:
| 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 |
12427 |
5795 |
80 |
106 |
4 |
0 |
0 |
0 |
| OW |
0 |
746 |
210 |
352 |
65 |
0 |
0 |
0 |
| VODI |
0 |
154 |
183 |
1113 |
406 |
4 |
0 |
0 |
| ODI |
0 |
20 |
19 |
641 |
4353 |
616 |
13 |
0 |
| CDI |
0 |
0 |
0 |
9 |
1667 |
3099 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12427 |
5408 |
102 |
152 |
25 |
0 |
0 |
0 |
| OW |
0 |
658 |
90 |
297 |
85 |
0 |
0 |
0 |
| VODI |
0 |
521 |
214 |
771 |
400 |
3 |
0 |
0 |
| ODI |
0 |
114 |
75 |
882 |
2777 |
299 |
0 |
0 |
| CDI |
0 |
14 |
11 |
119 |
3207 |
3404 |
13 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
13 |
0 |
0 |
|
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