Validation of sea ice concentration - American sector
Bulletin date: 2023-08-03
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-07-28:
| 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 |
9084 |
7384 |
510 |
470 |
139 |
22 |
0 |
0 |
| OW |
0 |
418 |
454 |
1065 |
246 |
26 |
3 |
0 |
| VODI |
0 |
71 |
140 |
3315 |
2090 |
67 |
3 |
0 |
| ODI |
0 |
5 |
5 |
407 |
6057 |
642 |
4 |
0 |
| CDI |
0 |
0 |
0 |
8 |
2556 |
7833 |
917 |
0 |
| VCDI |
0 |
4 |
0 |
2 |
22 |
1792 |
105 |
0 |
|
...date precedes bulletin
|
Date: 2023-07-30:
| 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 |
9129 |
8039 |
437 |
583 |
124 |
18 |
0 |
0 |
| OW |
0 |
542 |
401 |
1620 |
283 |
29 |
0 |
0 |
| VODI |
0 |
60 |
103 |
2928 |
2309 |
36 |
3 |
0 |
| ODI |
0 |
0 |
6 |
277 |
4935 |
1176 |
3 |
0 |
| CDI |
0 |
0 |
0 |
16 |
1878 |
7089 |
1373 |
0 |
| VCDI |
0 |
4 |
1 |
2 |
24 |
1534 |
904 |
0 |
|
...date precedes bulletin
|
Date: 2023-08-01:
| 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 |
9255 |
8742 |
498 |
591 |
134 |
5 |
0 |
0 |
| OW |
0 |
329 |
376 |
795 |
153 |
12 |
0 |
0 |
| VODI |
0 |
95 |
244 |
3135 |
1439 |
26 |
0 |
0 |
| ODI |
0 |
3 |
0 |
552 |
5736 |
383 |
0 |
0 |
| CDI |
0 |
0 |
1 |
17 |
1524 |
4940 |
77 |
0 |
| VCDI |
0 |
5 |
0 |
3 |
20 |
1462 |
4673 |
641 |
|
...date precedes bulletin
|
Date: 2023-08-03:
| 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 |
9470 |
8833 |
564 |
781 |
142 |
9 |
0 |
0 |
| OW |
0 |
291 |
342 |
1175 |
178 |
33 |
0 |
0 |
| VODI |
0 |
43 |
121 |
3541 |
1276 |
47 |
0 |
0 |
| ODI |
0 |
2 |
0 |
321 |
5163 |
184 |
0 |
0 |
| CDI |
0 |
13 |
5 |
9 |
1881 |
3808 |
811 |
0 |
| VCDI |
0 |
5 |
2 |
8 |
31 |
859 |
5478 |
440 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9470 |
8847 |
598 |
933 |
171 |
14 |
0 |
0 |
| OW |
0 |
258 |
305 |
1193 |
152 |
31 |
0 |
0 |
| VODI |
0 |
62 |
124 |
3171 |
1347 |
45 |
0 |
0 |
| ODI |
0 |
2 |
0 |
520 |
5032 |
167 |
0 |
0 |
| CDI |
0 |
13 |
7 |
11 |
1940 |
3786 |
803 |
0 |
| VCDI |
0 |
5 |
0 |
7 |
29 |
897 |
5486 |
440 |
|
Date: 2023-08-05:
| 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 |
9937 |
9023 |
598 |
714 |
71 |
0 |
0 |
0 |
| OW |
0 |
573 |
352 |
1175 |
211 |
29 |
0 |
0 |
| VODI |
0 |
97 |
186 |
2586 |
1733 |
268 |
0 |
0 |
| ODI |
0 |
2 |
1 |
273 |
4128 |
710 |
13 |
0 |
| CDI |
0 |
11 |
10 |
17 |
1182 |
3862 |
2128 |
41 |
| VCDI |
0 |
3 |
1 |
6 |
26 |
2289 |
3471 |
139 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9937 |
9167 |
638 |
857 |
89 |
0 |
0 |
0 |
| OW |
0 |
413 |
317 |
1104 |
339 |
47 |
0 |
0 |
| VODI |
0 |
113 |
181 |
2438 |
1760 |
254 |
0 |
0 |
| ODI |
0 |
2 |
1 |
349 |
3929 |
673 |
10 |
0 |
| CDI |
0 |
11 |
10 |
17 |
1208 |
3853 |
2095 |
33 |
| VCDI |
0 |
3 |
1 |
6 |
26 |
2331 |
3507 |
147 |
|
Date: 2023-08-07:
| 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 |
10176 |
9373 |
607 |
750 |
129 |
1 |
0 |
0 |
| OW |
0 |
359 |
329 |
690 |
81 |
18 |
0 |
0 |
| VODI |
0 |
77 |
189 |
3302 |
537 |
24 |
0 |
0 |
| ODI |
0 |
3 |
3 |
521 |
4203 |
415 |
0 |
0 |
| CDI |
0 |
9 |
7 |
20 |
1033 |
6412 |
154 |
0 |
| VCDI |
0 |
4 |
3 |
6 |
23 |
1534 |
4400 |
474 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10176 |
9414 |
717 |
1140 |
176 |
5 |
0 |
0 |
| OW |
0 |
348 |
304 |
1474 |
157 |
32 |
0 |
0 |
| VODI |
0 |
47 |
105 |
2448 |
1795 |
59 |
0 |
0 |
| ODI |
0 |
3 |
2 |
201 |
2974 |
1375 |
0 |
0 |
| CDI |
0 |
1 |
0 |
10 |
847 |
5108 |
1248 |
0 |
| VCDI |
0 |
12 |
10 |
16 |
57 |
1825 |
3306 |
474 |
|
Date: 2023-08-09:
| 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 |
11402 |
9241 |
613 |
354 |
21 |
0 |
0 |
0 |
| OW |
0 |
613 |
467 |
663 |
49 |
2 |
0 |
0 |
| VODI |
0 |
163 |
390 |
3094 |
365 |
4 |
0 |
0 |
| ODI |
0 |
4 |
4 |
1091 |
3291 |
227 |
0 |
0 |
| CDI |
0 |
1 |
2 |
42 |
2469 |
4798 |
398 |
0 |
| VCDI |
0 |
6 |
2 |
2 |
51 |
1923 |
4114 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11402 |
9337 |
819 |
801 |
37 |
0 |
0 |
0 |
| OW |
0 |
556 |
427 |
1250 |
100 |
6 |
0 |
0 |
| VODI |
0 |
126 |
227 |
2653 |
1268 |
22 |
0 |
0 |
| ODI |
0 |
2 |
1 |
496 |
3188 |
586 |
0 |
0 |
| CDI |
0 |
1 |
0 |
32 |
1547 |
4528 |
913 |
0 |
| VCDI |
0 |
6 |
4 |
14 |
106 |
1812 |
3599 |
0 |
|
Date: 2023-08-11:
| 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 |
10855 |
9596 |
675 |
752 |
49 |
6 |
0 |
0 |
| OW |
1 |
519 |
426 |
1093 |
131 |
14 |
0 |
0 |
| VODI |
0 |
116 |
254 |
2667 |
556 |
123 |
0 |
0 |
| ODI |
0 |
4 |
16 |
1114 |
3093 |
249 |
0 |
0 |
| CDI |
0 |
6 |
9 |
31 |
2294 |
4969 |
505 |
0 |
| VCDI |
0 |
5 |
2 |
2 |
24 |
1367 |
4343 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10855 |
9725 |
882 |
1529 |
70 |
5 |
0 |
0 |
| OW |
0 |
372 |
274 |
1325 |
309 |
25 |
0 |
0 |
| VODI |
1 |
132 |
213 |
2244 |
1312 |
167 |
0 |
0 |
| ODI |
0 |
6 |
2 |
520 |
2972 |
494 |
3 |
0 |
| CDI |
0 |
4 |
7 |
38 |
1445 |
4889 |
1744 |
0 |
| VCDI |
0 |
7 |
4 |
3 |
39 |
1148 |
3101 |
0 |
|
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