Validation of sea ice concentration - American sector
Bulletin date: 2023-09-14
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-09-08:
| 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 |
19353 |
9838 |
299 |
213 |
12 |
0 |
0 |
0 |
| OW |
0 |
592 |
211 |
233 |
13 |
0 |
0 |
0 |
| VODI |
0 |
103 |
186 |
768 |
120 |
2 |
0 |
0 |
| ODI |
0 |
13 |
35 |
1127 |
1115 |
112 |
0 |
0 |
| CDI |
0 |
0 |
1 |
281 |
1513 |
4080 |
396 |
0 |
| VCDI |
0 |
2 |
1 |
4 |
13 |
4881 |
349 |
0 |
|
...date precedes bulletin
|
Date: 2023-09-10:
| 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 |
19522 |
9492 |
328 |
332 |
15 |
0 |
0 |
0 |
| OW |
0 |
618 |
202 |
305 |
47 |
0 |
0 |
0 |
| VODI |
0 |
142 |
116 |
563 |
352 |
22 |
0 |
0 |
| ODI |
0 |
25 |
30 |
557 |
1217 |
107 |
3 |
0 |
| CDI |
0 |
0 |
0 |
321 |
1984 |
2534 |
91 |
0 |
| VCDI |
0 |
0 |
1 |
3 |
38 |
5957 |
942 |
0 |
|
...date precedes bulletin
|
Date: 2023-09-12:
| 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 |
20060 |
9670 |
433 |
424 |
39 |
0 |
0 |
0 |
| OW |
0 |
177 |
106 |
232 |
89 |
2 |
0 |
0 |
| VODI |
0 |
41 |
87 |
633 |
416 |
61 |
0 |
0 |
| ODI |
0 |
1 |
1 |
308 |
1814 |
670 |
0 |
0 |
| CDI |
0 |
0 |
0 |
12 |
759 |
4755 |
588 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
28 |
3634 |
823 |
0 |
|
...date precedes bulletin
|
Date: 2023-09-14:
| 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 |
20751 |
9366 |
262 |
254 |
31 |
4 |
0 |
0 |
| OW |
0 |
291 |
133 |
231 |
49 |
0 |
0 |
0 |
| VODI |
0 |
111 |
144 |
569 |
303 |
47 |
0 |
0 |
| ODI |
0 |
15 |
34 |
419 |
1296 |
805 |
30 |
0 |
| CDI |
0 |
0 |
0 |
134 |
964 |
2459 |
1177 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
37 |
3948 |
1998 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20751 |
9443 |
296 |
290 |
37 |
4 |
0 |
0 |
| OW |
0 |
237 |
108 |
216 |
31 |
0 |
0 |
0 |
| VODI |
0 |
98 |
145 |
598 |
366 |
39 |
0 |
0 |
| ODI |
0 |
5 |
24 |
370 |
1474 |
759 |
14 |
0 |
| CDI |
0 |
0 |
0 |
133 |
741 |
2863 |
1313 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
31 |
3598 |
1878 |
0 |
|
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 |
22114 |
8136 |
203 |
169 |
22 |
2 |
0 |
0 |
| OW |
0 |
387 |
150 |
219 |
34 |
4 |
0 |
0 |
| VODI |
0 |
164 |
148 |
567 |
213 |
49 |
0 |
0 |
| ODI |
0 |
21 |
64 |
581 |
1049 |
643 |
12 |
0 |
| CDI |
0 |
0 |
4 |
253 |
974 |
2516 |
760 |
0 |
| VCDI |
0 |
0 |
0 |
10 |
41 |
2968 |
3389 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
22114 |
8290 |
251 |
226 |
27 |
2 |
0 |
0 |
| OW |
0 |
263 |
100 |
202 |
33 |
2 |
0 |
0 |
| VODI |
0 |
145 |
164 |
586 |
271 |
34 |
0 |
0 |
| ODI |
0 |
10 |
52 |
539 |
1215 |
590 |
6 |
0 |
| CDI |
0 |
0 |
2 |
239 |
752 |
2850 |
969 |
0 |
| VCDI |
0 |
0 |
0 |
7 |
35 |
2704 |
3186 |
0 |
|
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 |
22369 |
8054 |
236 |
170 |
29 |
1 |
0 |
0 |
| OW |
1 |
309 |
183 |
213 |
16 |
0 |
0 |
0 |
| VODI |
0 |
54 |
131 |
921 |
161 |
7 |
0 |
0 |
| ODI |
0 |
1 |
1 |
411 |
1479 |
107 |
11 |
0 |
| CDI |
0 |
3 |
3 |
38 |
1005 |
3065 |
88 |
0 |
| VCDI |
0 |
1 |
0 |
6 |
10 |
3255 |
3527 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
22370 |
7839 |
257 |
219 |
39 |
1 |
0 |
0 |
| OW |
0 |
365 |
117 |
199 |
27 |
2 |
0 |
0 |
| VODI |
0 |
190 |
133 |
631 |
207 |
29 |
7 |
0 |
| ODI |
0 |
25 |
43 |
405 |
1289 |
286 |
20 |
0 |
| CDI |
0 |
2 |
4 |
297 |
1097 |
3113 |
535 |
0 |
| VCDI |
0 |
1 |
0 |
8 |
41 |
3004 |
3064 |
0 |
|
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 |
22123 |
8112 |
370 |
277 |
25 |
1 |
0 |
0 |
| OW |
0 |
319 |
175 |
276 |
55 |
2 |
0 |
0 |
| VODI |
0 |
58 |
114 |
728 |
236 |
30 |
0 |
0 |
| ODI |
0 |
3 |
3 |
390 |
1183 |
208 |
11 |
0 |
| CDI |
0 |
5 |
4 |
38 |
1094 |
2967 |
257 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
8 |
4069 |
2720 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
22123 |
7799 |
324 |
289 |
49 |
1 |
0 |
0 |
| OW |
0 |
400 |
118 |
210 |
58 |
0 |
0 |
0 |
| VODI |
0 |
279 |
181 |
534 |
177 |
52 |
0 |
0 |
| ODI |
0 |
15 |
39 |
427 |
1042 |
324 |
8 |
0 |
| CDI |
0 |
4 |
4 |
249 |
1264 |
3019 |
599 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
11 |
3881 |
2381 |
0 |
|
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 |
22186 |
7826 |
211 |
143 |
8 |
0 |
0 |
0 |
| OW |
0 |
488 |
222 |
373 |
58 |
0 |
0 |
0 |
| VODI |
0 |
72 |
110 |
625 |
329 |
26 |
0 |
0 |
| ODI |
0 |
8 |
19 |
382 |
1030 |
221 |
22 |
0 |
| CDI |
0 |
8 |
3 |
92 |
781 |
3285 |
388 |
0 |
| VCDI |
0 |
3 |
1 |
7 |
46 |
2732 |
4161 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
22186 |
7751 |
216 |
187 |
12 |
0 |
0 |
0 |
| OW |
0 |
390 |
129 |
241 |
51 |
0 |
0 |
0 |
| VODI |
0 |
225 |
173 |
446 |
315 |
12 |
0 |
0 |
| ODI |
0 |
28 |
40 |
388 |
883 |
383 |
1 |
0 |
| CDI |
0 |
9 |
7 |
353 |
944 |
3215 |
567 |
0 |
| VCDI |
0 |
2 |
1 |
7 |
47 |
2654 |
4003 |
0 |
|
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