Validation of sea ice concentration - Asian sector
Bulletin date: 2021-05-27
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2021-05-21:
| 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 |
0 |
222 |
4 |
94 |
0 |
0 |
0 |
0 |
| OW |
0 |
15 |
3 |
178 |
39 |
0 |
0 |
0 |
| VODI |
0 |
0 |
1 |
193 |
226 |
3 |
0 |
0 |
| ODI |
0 |
0 |
0 |
104 |
420 |
31 |
23 |
9 |
| CDI |
0 |
0 |
0 |
217 |
964 |
823 |
270 |
53 |
| VCDI |
0 |
20 |
7 |
121 |
668 |
3972 |
10822 |
12580 |
|
...date precedes bulletin
|
Date: 2021-05-23:
| 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 |
0 |
234 |
5 |
101 |
0 |
0 |
0 |
0 |
| OW |
0 |
40 |
3 |
178 |
27 |
0 |
0 |
0 |
| VODI |
0 |
17 |
11 |
230 |
192 |
4 |
0 |
0 |
| ODI |
0 |
1 |
1 |
144 |
303 |
64 |
7 |
1 |
| CDI |
0 |
101 |
17 |
215 |
854 |
1405 |
307 |
58 |
| VCDI |
0 |
29 |
11 |
194 |
948 |
3697 |
9048 |
13635 |
|
...date precedes bulletin
|
Date: 2021-05-25:
| 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 |
0 |
202 |
2 |
124 |
0 |
0 |
0 |
0 |
| OW |
0 |
70 |
11 |
200 |
84 |
4 |
1 |
0 |
| VODI |
0 |
26 |
5 |
299 |
340 |
10 |
14 |
0 |
| ODI |
0 |
59 |
5 |
183 |
558 |
127 |
44 |
0 |
| CDI |
0 |
256 |
40 |
453 |
1242 |
2150 |
231 |
66 |
| VCDI |
0 |
0 |
0 |
6 |
254 |
4929 |
13135 |
6952 |
|
...date precedes bulletin
|
Date: 2021-05-27:
| 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 |
0 |
225 |
20 |
158 |
28 |
0 |
0 |
0 |
| OW |
0 |
158 |
20 |
243 |
135 |
7 |
4 |
0 |
| VODI |
0 |
76 |
12 |
259 |
339 |
55 |
11 |
0 |
| ODI |
0 |
127 |
12 |
165 |
557 |
173 |
44 |
0 |
| CDI |
0 |
331 |
50 |
389 |
1465 |
2471 |
261 |
7 |
| VCDI |
0 |
0 |
0 |
20 |
239 |
4392 |
10247 |
9382 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
248 |
19 |
154 |
62 |
2 |
0 |
0 |
| OW |
0 |
134 |
16 |
230 |
140 |
4 |
6 |
0 |
| VODI |
0 |
77 |
17 |
282 |
335 |
69 |
8 |
0 |
| ODI |
0 |
118 |
14 |
163 |
508 |
194 |
41 |
0 |
| CDI |
0 |
340 |
48 |
389 |
1471 |
2599 |
254 |
8 |
| VCDI |
0 |
0 |
0 |
16 |
247 |
4230 |
10258 |
9381 |
|
Date: 2021-05-29:
| 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 |
0 |
417 |
11 |
129 |
17 |
0 |
0 |
0 |
| OW |
0 |
138 |
15 |
266 |
129 |
4 |
0 |
0 |
| VODI |
0 |
137 |
27 |
230 |
374 |
33 |
14 |
0 |
| ODI |
0 |
161 |
18 |
289 |
459 |
202 |
76 |
0 |
| CDI |
0 |
343 |
49 |
530 |
1540 |
2699 |
715 |
9 |
| VCDI |
0 |
4 |
2 |
47 |
640 |
5471 |
10371 |
6516 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
372 |
12 |
162 |
44 |
1 |
0 |
0 |
| OW |
0 |
163 |
10 |
210 |
142 |
3 |
0 |
0 |
| VODI |
0 |
133 |
29 |
240 |
368 |
47 |
7 |
0 |
| ODI |
0 |
159 |
20 |
301 |
428 |
214 |
62 |
0 |
| CDI |
0 |
369 |
49 |
530 |
1520 |
2692 |
719 |
12 |
| VCDI |
0 |
4 |
2 |
48 |
657 |
5452 |
10388 |
6513 |
|
Date: 2021-05-31:
| 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 |
0 |
805 |
31 |
145 |
11 |
0 |
0 |
0 |
| OW |
0 |
203 |
37 |
325 |
82 |
0 |
0 |
0 |
| VODI |
0 |
128 |
28 |
584 |
285 |
30 |
0 |
0 |
| ODI |
0 |
244 |
16 |
321 |
732 |
206 |
8 |
0 |
| CDI |
0 |
153 |
30 |
355 |
1493 |
3375 |
313 |
0 |
| VCDI |
0 |
3 |
1 |
61 |
737 |
5021 |
9887 |
6432 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
444 |
14 |
197 |
51 |
1 |
0 |
0 |
| OW |
0 |
168 |
20 |
225 |
147 |
12 |
0 |
0 |
| VODI |
0 |
190 |
33 |
302 |
330 |
74 |
1 |
0 |
| ODI |
0 |
182 |
20 |
332 |
393 |
299 |
47 |
0 |
| CDI |
0 |
547 |
54 |
642 |
1481 |
2820 |
531 |
0 |
| VCDI |
0 |
5 |
2 |
93 |
938 |
5426 |
9629 |
6432 |
|
Date: 2021-06-02:
| 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 |
0 |
991 |
54 |
192 |
20 |
0 |
0 |
0 |
| OW |
0 |
257 |
39 |
427 |
134 |
5 |
0 |
0 |
| VODI |
0 |
159 |
19 |
421 |
408 |
40 |
0 |
0 |
| ODI |
0 |
277 |
24 |
306 |
675 |
470 |
22 |
0 |
| CDI |
0 |
146 |
21 |
262 |
1493 |
3281 |
601 |
0 |
| VCDI |
0 |
17 |
4 |
17 |
596 |
3679 |
8738 |
8287 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
543 |
36 |
187 |
74 |
10 |
0 |
0 |
| OW |
0 |
209 |
18 |
217 |
134 |
12 |
0 |
0 |
| VODI |
0 |
251 |
25 |
354 |
350 |
80 |
3 |
0 |
| ODI |
0 |
221 |
24 |
304 |
403 |
552 |
28 |
0 |
| CDI |
0 |
590 |
54 |
542 |
1622 |
2976 |
896 |
0 |
| VCDI |
0 |
33 |
4 |
21 |
743 |
3845 |
8434 |
8287 |
|
Date: 2021-06-04:
| 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 |
0 |
1230 |
40 |
206 |
40 |
1 |
0 |
0 |
| OW |
0 |
265 |
44 |
421 |
200 |
0 |
0 |
0 |
| VODI |
0 |
197 |
20 |
361 |
461 |
56 |
0 |
0 |
| ODI |
0 |
243 |
20 |
354 |
650 |
788 |
25 |
6 |
| CDI |
0 |
146 |
23 |
247 |
2331 |
2230 |
905 |
47 |
| VCDI |
0 |
14 |
2 |
25 |
972 |
3833 |
9596 |
6083 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
664 |
22 |
173 |
122 |
4 |
0 |
0 |
| OW |
0 |
252 |
16 |
216 |
157 |
33 |
0 |
0 |
| VODI |
0 |
344 |
38 |
293 |
350 |
157 |
6 |
1 |
| ODI |
0 |
228 |
21 |
348 |
643 |
681 |
55 |
16 |
| CDI |
0 |
576 |
50 |
553 |
1892 |
1965 |
1448 |
127 |
| VCDI |
0 |
31 |
2 |
31 |
1490 |
4068 |
9017 |
5992 |
|
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