Validation of sea ice concentration - Asian sector
Bulletin date: 2023-10-26
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-10-20:
| 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 |
3797 |
3883 |
330 |
661 |
496 |
0 |
0 |
0 |
| OW |
10 |
442 |
188 |
925 |
999 |
187 |
0 |
0 |
| VODI |
15 |
70 |
61 |
671 |
1092 |
341 |
0 |
0 |
| ODI |
1 |
19 |
8 |
146 |
529 |
447 |
0 |
0 |
| CDI |
0 |
6 |
3 |
64 |
440 |
955 |
73 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
319 |
1811 |
6525 |
7579 |
|
...date precedes bulletin
|
Date: 2023-10-22:
| 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 |
3271 |
3562 |
305 |
713 |
323 |
0 |
0 |
0 |
| OW |
0 |
438 |
163 |
690 |
783 |
153 |
0 |
0 |
| VODI |
0 |
109 |
112 |
726 |
1336 |
472 |
0 |
0 |
| ODI |
0 |
2 |
3 |
282 |
1038 |
285 |
0 |
0 |
| CDI |
0 |
0 |
0 |
143 |
672 |
719 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
14 |
497 |
2613 |
6430 |
7242 |
|
...date precedes bulletin
|
Date: 2023-10-24:
| 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 |
2878 |
3171 |
244 |
364 |
287 |
0 |
0 |
0 |
| OW |
0 |
230 |
164 |
497 |
402 |
23 |
0 |
0 |
| VODI |
0 |
10 |
18 |
510 |
966 |
63 |
0 |
0 |
| ODI |
0 |
0 |
0 |
61 |
1483 |
1011 |
0 |
0 |
| CDI |
0 |
0 |
0 |
9 |
773 |
2811 |
96 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
87 |
2735 |
7597 |
6606 |
|
...date precedes bulletin
|
Date: 2023-10-26:
| 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 |
2144 |
2061 |
308 |
748 |
297 |
30 |
0 |
0 |
| OW |
0 |
115 |
87 |
497 |
351 |
226 |
0 |
0 |
| VODI |
0 |
3 |
9 |
265 |
684 |
586 |
5 |
0 |
| ODI |
0 |
0 |
0 |
42 |
731 |
851 |
59 |
0 |
| CDI |
0 |
0 |
0 |
9 |
598 |
2820 |
602 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
180 |
2811 |
6798 |
9179 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2144 |
2123 |
338 |
853 |
347 |
108 |
0 |
0 |
| OW |
0 |
55 |
62 |
406 |
291 |
174 |
0 |
0 |
| VODI |
0 |
1 |
4 |
243 |
750 |
514 |
0 |
0 |
| ODI |
0 |
0 |
0 |
48 |
600 |
746 |
33 |
0 |
| CDI |
0 |
0 |
0 |
11 |
654 |
2678 |
433 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
199 |
3104 |
6998 |
9179 |
|
Date: 2023-10-28:
| 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 |
1867 |
1362 |
112 |
374 |
93 |
27 |
0 |
0 |
| OW |
0 |
88 |
117 |
592 |
785 |
164 |
0 |
0 |
| VODI |
0 |
0 |
0 |
216 |
614 |
679 |
9 |
0 |
| ODI |
0 |
0 |
0 |
5 |
324 |
999 |
128 |
0 |
| CDI |
0 |
0 |
0 |
0 |
146 |
2123 |
624 |
2 |
| VCDI |
0 |
0 |
0 |
0 |
32 |
2738 |
7325 |
11551 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1867 |
1435 |
185 |
487 |
286 |
52 |
0 |
0 |
| OW |
0 |
15 |
44 |
546 |
619 |
170 |
1 |
0 |
| VODI |
0 |
0 |
0 |
152 |
594 |
576 |
7 |
0 |
| ODI |
0 |
0 |
0 |
2 |
292 |
914 |
97 |
0 |
| CDI |
0 |
0 |
0 |
0 |
165 |
2079 |
573 |
2 |
| VCDI |
0 |
0 |
0 |
0 |
38 |
2939 |
7408 |
11551 |
|
Date: 2023-10-30:
| 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 |
1556 |
1638 |
50 |
55 |
1 |
0 |
0 |
0 |
| OW |
0 |
71 |
43 |
188 |
132 |
11 |
0 |
0 |
| VODI |
0 |
0 |
0 |
385 |
442 |
50 |
0 |
0 |
| ODI |
0 |
0 |
0 |
28 |
704 |
620 |
6 |
0 |
| CDI |
0 |
0 |
0 |
0 |
265 |
2607 |
135 |
9 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
2524 |
5945 |
15631 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1556 |
1592 |
62 |
195 |
106 |
8 |
0 |
0 |
| OW |
0 |
114 |
27 |
372 |
439 |
230 |
0 |
0 |
| VODI |
0 |
3 |
4 |
87 |
647 |
866 |
0 |
0 |
| ODI |
0 |
0 |
0 |
2 |
127 |
873 |
43 |
5 |
| CDI |
0 |
0 |
0 |
0 |
96 |
1368 |
479 |
124 |
| VCDI |
0 |
0 |
0 |
0 |
129 |
2467 |
5564 |
15511 |
|
Date: 2023-11-01:
| 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 |
2022 |
1252 |
53 |
7 |
0 |
0 |
0 |
0 |
| OW |
0 |
119 |
61 |
122 |
32 |
9 |
0 |
0 |
| VODI |
0 |
2 |
14 |
161 |
170 |
249 |
0 |
0 |
| ODI |
0 |
0 |
0 |
26 |
337 |
358 |
6 |
0 |
| CDI |
0 |
0 |
0 |
0 |
471 |
981 |
244 |
4 |
| VCDI |
0 |
0 |
0 |
0 |
90 |
3426 |
6785 |
16095 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2013 |
1129 |
38 |
30 |
7 |
0 |
0 |
0 |
| OW |
9 |
231 |
75 |
164 |
134 |
205 |
1 |
0 |
| VODI |
0 |
13 |
15 |
117 |
468 |
847 |
205 |
0 |
| ODI |
0 |
0 |
0 |
5 |
183 |
430 |
385 |
0 |
| CDI |
0 |
0 |
0 |
0 |
120 |
626 |
683 |
25 |
| VCDI |
0 |
0 |
0 |
0 |
188 |
2915 |
5761 |
16074 |
|
Date: 2023-11-03:
| 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 |
1796 |
1629 |
5 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
214 |
58 |
40 |
14 |
0 |
0 |
0 |
| VODI |
0 |
38 |
55 |
143 |
93 |
54 |
3 |
0 |
| ODI |
0 |
1 |
12 |
123 |
148 |
249 |
81 |
0 |
| CDI |
0 |
0 |
0 |
60 |
465 |
367 |
219 |
7 |
| VCDI |
0 |
0 |
0 |
2 |
526 |
3977 |
7944 |
14771 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1757 |
1475 |
6 |
2 |
0 |
0 |
0 |
0 |
| OW |
39 |
337 |
59 |
81 |
47 |
6 |
5 |
0 |
| VODI |
0 |
70 |
65 |
207 |
202 |
431 |
155 |
0 |
| ODI |
0 |
0 |
0 |
65 |
221 |
301 |
335 |
1 |
| CDI |
0 |
0 |
0 |
14 |
285 |
581 |
459 |
7 |
| VCDI |
0 |
0 |
0 |
1 |
491 |
3328 |
7293 |
14770 |
|
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