Validation of sea ice concentration - Asian sector
Bulletin date: 2023-09-28
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
13127 |
4487 |
20 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
1092 |
175 |
185 |
69 |
14 |
0 |
0 |
| VODI |
0 |
194 |
177 |
735 |
415 |
236 |
0 |
0 |
| ODI |
0 |
14 |
25 |
280 |
1824 |
660 |
10 |
0 |
| CDI |
0 |
0 |
0 |
38 |
642 |
6088 |
363 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
6 |
854 |
349 |
0 |
|
...date precedes bulletin
|
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 |
12385 |
5196 |
32 |
10 |
0 |
0 |
0 |
0 |
| OW |
0 |
1025 |
171 |
218 |
33 |
8 |
0 |
0 |
| VODI |
0 |
252 |
152 |
658 |
343 |
320 |
6 |
0 |
| ODI |
0 |
28 |
26 |
322 |
1506 |
602 |
57 |
0 |
| CDI |
0 |
0 |
2 |
27 |
368 |
4331 |
2071 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
725 |
1208 |
0 |
|
...date precedes bulletin
|
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 |
13279 |
4793 |
6 |
6 |
0 |
0 |
0 |
0 |
| OW |
1 |
1087 |
102 |
42 |
0 |
0 |
0 |
0 |
| VODI |
0 |
198 |
231 |
718 |
127 |
0 |
0 |
0 |
| ODI |
0 |
12 |
11 |
442 |
1703 |
134 |
0 |
0 |
| CDI |
0 |
1 |
3 |
49 |
819 |
2660 |
26 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
189 |
4328 |
1115 |
0 |
|
...date precedes bulletin
|
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 |
13143 |
4730 |
14 |
13 |
0 |
0 |
0 |
0 |
| OW |
0 |
966 |
174 |
131 |
12 |
0 |
0 |
0 |
| VODI |
0 |
199 |
133 |
626 |
301 |
3 |
0 |
0 |
| ODI |
0 |
40 |
14 |
237 |
1604 |
243 |
0 |
0 |
| CDI |
0 |
21 |
12 |
81 |
729 |
2427 |
151 |
0 |
| VCDI |
0 |
0 |
0 |
31 |
225 |
3408 |
2414 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13143 |
4871 |
15 |
10 |
0 |
0 |
0 |
0 |
| OW |
0 |
842 |
175 |
182 |
12 |
0 |
0 |
0 |
| VODI |
0 |
180 |
131 |
628 |
419 |
7 |
0 |
0 |
| ODI |
0 |
42 |
14 |
199 |
1592 |
262 |
0 |
0 |
| CDI |
0 |
19 |
10 |
57 |
617 |
2549 |
145 |
0 |
| VCDI |
0 |
2 |
2 |
43 |
231 |
3263 |
2420 |
0 |
|
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 |
12088 |
4958 |
37 |
24 |
6 |
0 |
0 |
0 |
| OW |
0 |
917 |
237 |
335 |
46 |
9 |
0 |
0 |
| VODI |
0 |
94 |
99 |
684 |
441 |
43 |
7 |
0 |
| ODI |
0 |
1 |
9 |
169 |
1039 |
668 |
16 |
0 |
| CDI |
0 |
0 |
0 |
109 |
584 |
2373 |
270 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
118 |
2340 |
4361 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12088 |
5112 |
67 |
39 |
6 |
1 |
0 |
0 |
| OW |
0 |
782 |
223 |
406 |
61 |
9 |
0 |
0 |
| VODI |
0 |
75 |
85 |
614 |
572 |
69 |
6 |
0 |
| ODI |
0 |
1 |
7 |
156 |
1014 |
744 |
11 |
0 |
| CDI |
0 |
0 |
0 |
94 |
432 |
2364 |
325 |
0 |
| VCDI |
0 |
0 |
0 |
12 |
149 |
2246 |
4312 |
0 |
|
Date: 2023-10-02:
| 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 |
11096 |
5620 |
36 |
46 |
0 |
0 |
0 |
0 |
| OW |
1 |
732 |
169 |
129 |
1 |
0 |
0 |
0 |
| VODI |
0 |
66 |
113 |
518 |
91 |
0 |
0 |
0 |
| ODI |
0 |
3 |
12 |
164 |
466 |
17 |
0 |
0 |
| CDI |
0 |
0 |
0 |
30 |
1012 |
1135 |
52 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
64 |
3945 |
6295 |
269 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11096 |
5402 |
67 |
65 |
0 |
0 |
0 |
0 |
| OW |
1 |
864 |
157 |
384 |
142 |
19 |
0 |
0 |
| VODI |
0 |
138 |
86 |
299 |
585 |
166 |
10 |
0 |
| ODI |
0 |
17 |
16 |
100 |
482 |
416 |
65 |
0 |
| CDI |
0 |
0 |
4 |
39 |
390 |
1962 |
393 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
35 |
2534 |
5879 |
269 |
|
Date: 2023-10-04:
| 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 |
11545 |
5306 |
52 |
19 |
0 |
0 |
0 |
0 |
| OW |
1 |
602 |
96 |
168 |
35 |
0 |
0 |
0 |
| VODI |
0 |
141 |
84 |
179 |
184 |
14 |
0 |
0 |
| ODI |
0 |
35 |
35 |
175 |
244 |
72 |
0 |
0 |
| CDI |
0 |
45 |
15 |
97 |
459 |
550 |
54 |
0 |
| VCDI |
0 |
10 |
10 |
36 |
317 |
4661 |
6794 |
47 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11545 |
4912 |
61 |
71 |
7 |
0 |
0 |
0 |
| OW |
1 |
855 |
115 |
186 |
194 |
0 |
0 |
0 |
| VODI |
0 |
238 |
63 |
257 |
343 |
194 |
5 |
0 |
| ODI |
0 |
81 |
29 |
51 |
356 |
372 |
87 |
0 |
| CDI |
0 |
48 |
19 |
95 |
259 |
1064 |
297 |
0 |
| VCDI |
0 |
5 |
5 |
14 |
80 |
3667 |
6459 |
47 |
|
Date: 2023-10-06:
| 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 |
10988 |
5540 |
47 |
25 |
0 |
0 |
0 |
0 |
| OW |
1 |
713 |
125 |
313 |
40 |
0 |
0 |
0 |
| VODI |
0 |
217 |
79 |
181 |
161 |
31 |
0 |
0 |
| ODI |
0 |
53 |
55 |
166 |
147 |
48 |
0 |
0 |
| CDI |
0 |
36 |
29 |
153 |
340 |
401 |
13 |
0 |
| VCDI |
0 |
3 |
3 |
76 |
246 |
3771 |
7451 |
630 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10959 |
5212 |
64 |
64 |
0 |
0 |
0 |
0 |
| OW |
30 |
934 |
115 |
261 |
99 |
0 |
0 |
0 |
| VODI |
0 |
261 |
83 |
315 |
344 |
114 |
32 |
0 |
| ODI |
0 |
115 |
38 |
120 |
196 |
281 |
254 |
0 |
| CDI |
0 |
40 |
38 |
131 |
252 |
718 |
463 |
0 |
| VCDI |
0 |
0 |
0 |
23 |
43 |
3138 |
6715 |
630 |
|
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