Validation of sea ice concentration - Asian sector
Bulletin date: 2023-09-21
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-09-16:
| 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 |
12644 |
5555 |
120 |
93 |
0 |
0 |
0 |
0 |
| OW |
0 |
545 |
304 |
499 |
25 |
0 |
0 |
0 |
| VODI |
0 |
17 |
59 |
1477 |
307 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
387 |
4667 |
608 |
0 |
0 |
| CDI |
0 |
0 |
0 |
3 |
1538 |
3234 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
...date precedes bulletin
|
Date: 2023-09-18:
| 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 |
12752 |
5201 |
100 |
56 |
0 |
0 |
0 |
0 |
| OW |
0 |
770 |
275 |
430 |
14 |
0 |
0 |
0 |
| VODI |
0 |
30 |
118 |
1398 |
238 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
501 |
3306 |
990 |
37 |
0 |
| CDI |
0 |
0 |
0 |
4 |
1447 |
4148 |
267 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
...date precedes bulletin
|
Date: 2023-09-20:
| 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 |
12861 |
5514 |
234 |
135 |
0 |
0 |
0 |
0 |
| OW |
0 |
195 |
207 |
470 |
1 |
0 |
0 |
0 |
| VODI |
0 |
3 |
34 |
1219 |
210 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
167 |
2740 |
453 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
1215 |
6143 |
154 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
102 |
25 |
0 |
|
...date precedes bulletin
|
Date: 2023-09-22:
| 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 |
12355 |
5792 |
189 |
174 |
21 |
0 |
0 |
0 |
| OW |
0 |
336 |
214 |
392 |
71 |
0 |
0 |
0 |
| VODI |
0 |
19 |
64 |
852 |
418 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
205 |
2216 |
574 |
0 |
0 |
| CDI |
0 |
0 |
0 |
3 |
890 |
6185 |
1039 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
54 |
19 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12355 |
5688 |
203 |
199 |
29 |
0 |
0 |
0 |
| OW |
0 |
425 |
178 |
385 |
60 |
0 |
0 |
0 |
| VODI |
0 |
34 |
86 |
831 |
387 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
208 |
2243 |
747 |
0 |
0 |
| CDI |
0 |
0 |
0 |
3 |
897 |
5993 |
1044 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
73 |
14 |
0 |
|
Date: 2023-09-24:
| 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 |
12849 |
4912 |
92 |
167 |
27 |
0 |
0 |
0 |
| OW |
0 |
678 |
203 |
289 |
179 |
116 |
9 |
0 |
| VODI |
0 |
70 |
114 |
579 |
297 |
161 |
112 |
0 |
| ODI |
0 |
0 |
8 |
312 |
1627 |
349 |
216 |
0 |
| CDI |
0 |
0 |
0 |
5 |
487 |
4648 |
2765 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
193 |
618 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12849 |
4882 |
116 |
147 |
33 |
0 |
0 |
0 |
| OW |
0 |
689 |
152 |
295 |
151 |
83 |
3 |
0 |
| VODI |
0 |
89 |
142 |
579 |
301 |
164 |
89 |
0 |
| ODI |
0 |
0 |
7 |
325 |
1588 |
579 |
240 |
0 |
| CDI |
0 |
0 |
0 |
6 |
544 |
4457 |
2983 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
184 |
405 |
0 |
|
Date: 2023-09-26:
| 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 |
12661 |
5827 |
188 |
87 |
0 |
0 |
0 |
0 |
| OW |
0 |
194 |
202 |
398 |
20 |
0 |
0 |
0 |
| VODI |
0 |
1 |
17 |
752 |
349 |
12 |
0 |
0 |
| ODI |
0 |
0 |
0 |
40 |
1892 |
173 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
292 |
2861 |
269 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
551 |
4665 |
630 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12661 |
5071 |
82 |
131 |
11 |
0 |
0 |
0 |
| OW |
0 |
710 |
136 |
308 |
135 |
48 |
0 |
0 |
| VODI |
0 |
232 |
171 |
543 |
339 |
284 |
7 |
0 |
| ODI |
0 |
9 |
18 |
290 |
1485 |
269 |
125 |
0 |
| CDI |
0 |
0 |
0 |
5 |
584 |
2866 |
4096 |
203 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
130 |
706 |
427 |
|
Date: 2023-09-28:
| 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 |
12843 |
5247 |
99 |
67 |
0 |
0 |
0 |
0 |
| OW |
0 |
731 |
197 |
328 |
9 |
0 |
0 |
0 |
| VODI |
0 |
36 |
131 |
762 |
320 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
172 |
1641 |
61 |
0 |
0 |
| CDI |
0 |
0 |
0 |
5 |
821 |
1793 |
278 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
10 |
1535 |
4793 |
203 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12843 |
5043 |
89 |
132 |
33 |
0 |
0 |
0 |
| OW |
0 |
711 |
147 |
335 |
97 |
0 |
0 |
0 |
| VODI |
0 |
240 |
171 |
576 |
571 |
45 |
0 |
0 |
| ODI |
0 |
20 |
20 |
267 |
1289 |
383 |
3 |
0 |
| CDI |
0 |
0 |
0 |
24 |
802 |
2665 |
2761 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
9 |
296 |
2307 |
203 |
|
Date: 2023-09-30:
| 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 |
12634 |
4715 |
78 |
118 |
24 |
0 |
0 |
0 |
| OW |
0 |
930 |
149 |
293 |
56 |
0 |
0 |
0 |
| VODI |
0 |
105 |
122 |
665 |
390 |
36 |
0 |
0 |
| ODI |
0 |
0 |
5 |
144 |
1110 |
479 |
0 |
0 |
| CDI |
0 |
0 |
0 |
29 |
431 |
2013 |
87 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
44 |
696 |
4901 |
1828 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12589 |
4736 |
123 |
189 |
147 |
5 |
0 |
0 |
| OW |
45 |
801 |
124 |
427 |
185 |
43 |
0 |
0 |
| VODI |
0 |
183 |
88 |
443 |
563 |
281 |
0 |
0 |
| ODI |
0 |
30 |
19 |
165 |
764 |
876 |
44 |
0 |
| CDI |
0 |
0 |
0 |
25 |
396 |
1947 |
2693 |
284 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
72 |
2251 |
1544 |
|
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