Validation of sea ice concentration - Asian sector
Bulletin date: 2023-06-29
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-06-23:
| 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 |
253 |
2363 |
229 |
360 |
88 |
20 |
0 |
0 |
| OW |
0 |
348 |
151 |
298 |
215 |
105 |
2 |
0 |
| VODI |
0 |
239 |
128 |
446 |
757 |
266 |
9 |
0 |
| ODI |
0 |
120 |
86 |
311 |
1267 |
755 |
152 |
0 |
| CDI |
0 |
35 |
75 |
392 |
1958 |
2559 |
392 |
0 |
| VCDI |
0 |
0 |
1 |
18 |
271 |
4536 |
10559 |
2318 |
|
...date precedes bulletin
|
Date: 2023-06-25:
| 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 |
283 |
2591 |
256 |
285 |
87 |
19 |
0 |
0 |
| OW |
0 |
368 |
161 |
348 |
209 |
132 |
0 |
0 |
| VODI |
0 |
231 |
139 |
426 |
885 |
347 |
8 |
0 |
| ODI |
0 |
98 |
60 |
283 |
1301 |
866 |
15 |
0 |
| CDI |
0 |
47 |
69 |
306 |
1350 |
3919 |
494 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
37 |
4048 |
12338 |
72 |
|
...date precedes bulletin
|
Date: 2023-06-27:
| 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 |
238 |
3180 |
272 |
278 |
65 |
7 |
0 |
0 |
| OW |
0 |
256 |
202 |
335 |
160 |
55 |
4 |
0 |
| VODI |
0 |
109 |
128 |
625 |
653 |
226 |
6 |
0 |
| ODI |
0 |
27 |
59 |
361 |
1837 |
1126 |
43 |
0 |
| CDI |
0 |
2 |
15 |
138 |
1010 |
5192 |
656 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
58 |
4525 |
10187 |
44 |
|
...date precedes bulletin
|
Date: 2023-06-29:
| 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 |
249 |
3253 |
272 |
399 |
90 |
1 |
0 |
0 |
| OW |
0 |
244 |
188 |
424 |
261 |
46 |
0 |
0 |
| VODI |
0 |
86 |
113 |
606 |
952 |
381 |
12 |
0 |
| ODI |
0 |
33 |
36 |
323 |
1687 |
1052 |
32 |
0 |
| CDI |
0 |
6 |
9 |
138 |
965 |
6050 |
1473 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
52 |
2868 |
9478 |
301 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
249 |
3282 |
290 |
452 |
133 |
9 |
0 |
0 |
| OW |
0 |
213 |
176 |
380 |
246 |
46 |
0 |
0 |
| VODI |
0 |
88 |
102 |
601 |
872 |
387 |
18 |
0 |
| ODI |
0 |
32 |
38 |
305 |
1699 |
1065 |
29 |
0 |
| CDI |
0 |
7 |
12 |
153 |
1020 |
6017 |
1373 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
37 |
2874 |
9575 |
301 |
|
Date: 2023-07-01:
| 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 |
275 |
3432 |
276 |
341 |
79 |
2 |
0 |
0 |
| OW |
1 |
259 |
199 |
448 |
353 |
81 |
1 |
0 |
| VODI |
0 |
81 |
99 |
570 |
959 |
890 |
28 |
0 |
| ODI |
0 |
24 |
20 |
226 |
1081 |
1375 |
54 |
0 |
| CDI |
0 |
10 |
11 |
132 |
588 |
8159 |
1368 |
0 |
| VCDI |
0 |
0 |
0 |
10 |
115 |
4280 |
6255 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
276 |
3478 |
302 |
429 |
130 |
25 |
1 |
0 |
| OW |
0 |
215 |
172 |
387 |
330 |
90 |
3 |
0 |
| VODI |
0 |
78 |
98 |
543 |
947 |
817 |
29 |
0 |
| ODI |
0 |
26 |
22 |
216 |
1065 |
1442 |
49 |
0 |
| CDI |
0 |
9 |
11 |
152 |
585 |
7828 |
1305 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
118 |
4585 |
6319 |
0 |
|
Date: 2023-07-03:
| 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 |
266 |
3646 |
268 |
257 |
56 |
6 |
0 |
0 |
| OW |
0 |
252 |
215 |
362 |
156 |
19 |
0 |
0 |
| VODI |
0 |
74 |
165 |
834 |
662 |
133 |
3 |
0 |
| ODI |
0 |
10 |
26 |
418 |
2219 |
1203 |
23 |
0 |
| CDI |
0 |
0 |
0 |
78 |
835 |
9940 |
876 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
38 |
2867 |
6173 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
266 |
3578 |
320 |
432 |
197 |
43 |
0 |
0 |
| OW |
0 |
249 |
180 |
425 |
362 |
151 |
24 |
0 |
| VODI |
0 |
112 |
129 |
680 |
1191 |
674 |
13 |
0 |
| ODI |
0 |
33 |
33 |
270 |
1318 |
1017 |
9 |
0 |
| CDI |
0 |
10 |
12 |
141 |
826 |
8539 |
1399 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
72 |
3744 |
5630 |
0 |
|
Date: 2023-07-05:
| 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 |
337 |
3857 |
242 |
269 |
62 |
5 |
0 |
0 |
| OW |
0 |
359 |
207 |
445 |
180 |
46 |
0 |
0 |
| VODI |
0 |
200 |
193 |
887 |
711 |
153 |
3 |
0 |
| ODI |
0 |
23 |
37 |
337 |
2023 |
1182 |
21 |
0 |
| CDI |
0 |
1 |
10 |
120 |
1608 |
9257 |
928 |
0 |
| VCDI |
0 |
0 |
0 |
9 |
52 |
4400 |
3918 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
337 |
3642 |
292 |
433 |
217 |
81 |
0 |
0 |
| OW |
0 |
439 |
192 |
564 |
469 |
169 |
5 |
0 |
| VODI |
0 |
277 |
138 |
591 |
1199 |
522 |
7 |
0 |
| ODI |
0 |
71 |
44 |
308 |
1167 |
1024 |
30 |
0 |
| CDI |
0 |
11 |
23 |
162 |
1547 |
9178 |
849 |
0 |
| VCDI |
0 |
0 |
0 |
9 |
37 |
4069 |
3979 |
0 |
|
Date: 2023-07-07:
| 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 |
616 |
3681 |
281 |
298 |
32 |
15 |
0 |
0 |
| OW |
0 |
423 |
261 |
527 |
237 |
51 |
4 |
0 |
| VODI |
0 |
209 |
188 |
977 |
954 |
140 |
38 |
0 |
| ODI |
0 |
28 |
31 |
281 |
2167 |
842 |
27 |
0 |
| CDI |
0 |
13 |
23 |
121 |
2516 |
8718 |
585 |
0 |
| VCDI |
0 |
1 |
0 |
13 |
259 |
4791 |
2734 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
616 |
3477 |
336 |
527 |
245 |
88 |
25 |
0 |
| OW |
0 |
503 |
224 |
633 |
744 |
163 |
38 |
0 |
| VODI |
0 |
274 |
142 |
594 |
1226 |
259 |
7 |
0 |
| ODI |
0 |
71 |
50 |
294 |
1396 |
941 |
30 |
0 |
| CDI |
0 |
29 |
32 |
158 |
2301 |
8607 |
627 |
0 |
| VCDI |
0 |
1 |
0 |
11 |
253 |
4499 |
2661 |
0 |
|
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