Validation of sea ice concentration - American sector
Bulletin date: 2023-09-07
Data source: OSI SAF N.H. multi-product 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 |
35362 |
5343 |
35 |
46 |
0 |
0 |
0 |
0 |
| OW |
242 |
2766 |
294 |
223 |
2 |
0 |
0 |
0 |
| VODI |
0 |
383 |
303 |
2122 |
330 |
12 |
0 |
0 |
| ODI |
0 |
11 |
1 |
387 |
3086 |
640 |
1 |
0 |
| CDI |
0 |
8 |
0 |
5 |
643 |
4163 |
827 |
0 |
| VCDI |
0 |
2 |
1 |
9 |
10 |
691 |
3283 |
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 |
36605 |
4437 |
39 |
6 |
0 |
0 |
0 |
0 |
| OW |
318 |
2562 |
244 |
215 |
1 |
0 |
0 |
0 |
| VODI |
0 |
412 |
319 |
2098 |
288 |
14 |
0 |
0 |
| ODI |
0 |
14 |
8 |
348 |
2862 |
733 |
13 |
0 |
| CDI |
0 |
6 |
1 |
10 |
641 |
4053 |
1105 |
0 |
| VCDI |
0 |
3 |
0 |
8 |
6 |
1434 |
2428 |
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 |
37431 |
5219 |
38 |
25 |
0 |
0 |
0 |
0 |
| OW |
27 |
1949 |
387 |
276 |
4 |
0 |
0 |
0 |
| VODI |
0 |
74 |
131 |
1237 |
257 |
0 |
0 |
0 |
| ODI |
0 |
8 |
4 |
300 |
2397 |
221 |
4 |
0 |
| CDI |
0 |
8 |
2 |
39 |
997 |
6154 |
1362 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
5 |
933 |
1742 |
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 |
39184 |
3402 |
26 |
22 |
1 |
0 |
0 |
0 |
| OW |
148 |
2014 |
264 |
172 |
22 |
0 |
0 |
0 |
| VODI |
0 |
240 |
156 |
1087 |
239 |
15 |
0 |
0 |
| ODI |
0 |
15 |
19 |
612 |
2170 |
254 |
0 |
0 |
| CDI |
0 |
0 |
0 |
53 |
1444 |
6721 |
638 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
2 |
1109 |
1199 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
38887 |
2849 |
36 |
34 |
5 |
0 |
0 |
0 |
| OW |
445 |
2026 |
160 |
186 |
45 |
4 |
0 |
0 |
| VODI |
0 |
766 |
260 |
1318 |
507 |
8 |
0 |
0 |
| ODI |
0 |
30 |
8 |
363 |
2476 |
752 |
30 |
0 |
| CDI |
0 |
0 |
1 |
38 |
832 |
6334 |
850 |
0 |
| VCDI |
0 |
0 |
0 |
10 |
13 |
1001 |
957 |
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 |
39273 |
3123 |
11 |
6 |
0 |
0 |
0 |
0 |
| OW |
202 |
2198 |
178 |
113 |
1 |
0 |
0 |
0 |
| VODI |
0 |
355 |
249 |
1148 |
128 |
0 |
0 |
0 |
| ODI |
0 |
15 |
25 |
1102 |
1754 |
198 |
0 |
0 |
| CDI |
0 |
0 |
0 |
136 |
1225 |
5400 |
1336 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
5 |
2017 |
1028 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
39017 |
2641 |
17 |
18 |
0 |
0 |
0 |
0 |
| OW |
458 |
2204 |
143 |
168 |
4 |
0 |
0 |
0 |
| VODI |
0 |
835 |
297 |
1538 |
283 |
0 |
0 |
0 |
| ODI |
0 |
11 |
6 |
733 |
2043 |
708 |
9 |
0 |
| CDI |
0 |
0 |
0 |
45 |
763 |
5210 |
1428 |
0 |
| VCDI |
0 |
0 |
0 |
8 |
20 |
1697 |
927 |
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 |
39030 |
4554 |
35 |
2 |
1 |
0 |
0 |
0 |
| OW |
67 |
1410 |
432 |
233 |
2 |
0 |
0 |
0 |
| VODI |
2 |
39 |
11 |
1597 |
180 |
4 |
0 |
0 |
| ODI |
0 |
7 |
1 |
85 |
2884 |
195 |
0 |
0 |
| CDI |
0 |
0 |
0 |
4 |
419 |
6256 |
242 |
0 |
| VCDI |
0 |
0 |
0 |
10 |
4 |
1079 |
2446 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
38732 |
3125 |
25 |
1 |
1 |
0 |
0 |
0 |
| OW |
367 |
2088 |
193 |
304 |
35 |
0 |
0 |
0 |
| VODI |
0 |
760 |
238 |
1134 |
596 |
144 |
0 |
0 |
| ODI |
0 |
37 |
23 |
439 |
1909 |
816 |
100 |
0 |
| CDI |
0 |
0 |
0 |
43 |
921 |
4245 |
1109 |
0 |
| VCDI |
0 |
0 |
0 |
10 |
28 |
2329 |
1479 |
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 |
38660 |
5164 |
53 |
92 |
7 |
0 |
0 |
0 |
| OW |
9 |
1234 |
278 |
463 |
24 |
0 |
0 |
0 |
| VODI |
0 |
77 |
86 |
1006 |
516 |
83 |
0 |
0 |
| ODI |
0 |
6 |
4 |
200 |
1951 |
1044 |
16 |
0 |
| CDI |
0 |
0 |
1 |
4 |
582 |
3352 |
2265 |
0 |
| VCDI |
0 |
0 |
0 |
9 |
8 |
1801 |
2236 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
38460 |
3391 |
34 |
89 |
5 |
0 |
0 |
0 |
| OW |
209 |
2272 |
157 |
246 |
49 |
51 |
0 |
0 |
| VODI |
0 |
788 |
207 |
1144 |
575 |
100 |
2 |
0 |
| ODI |
0 |
29 |
21 |
246 |
1660 |
1103 |
285 |
0 |
| CDI |
0 |
1 |
3 |
40 |
786 |
2988 |
3009 |
0 |
| VCDI |
0 |
0 |
0 |
9 |
13 |
2038 |
1221 |
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 |
39798 |
4374 |
5 |
9 |
8 |
0 |
0 |
0 |
| OW |
42 |
1313 |
269 |
220 |
69 |
5 |
0 |
0 |
| VODI |
1 |
130 |
108 |
1017 |
340 |
113 |
1 |
0 |
| ODI |
0 |
0 |
6 |
324 |
1719 |
1210 |
17 |
0 |
| CDI |
0 |
0 |
0 |
83 |
632 |
2827 |
1972 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
10 |
1376 |
3219 |
14 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
39558 |
2537 |
15 |
12 |
2 |
0 |
0 |
0 |
| OW |
283 |
2214 |
115 |
159 |
58 |
79 |
0 |
0 |
| VODI |
0 |
1053 |
221 |
913 |
507 |
67 |
0 |
0 |
| ODI |
0 |
13 |
36 |
465 |
1204 |
1276 |
191 |
0 |
| CDI |
0 |
0 |
1 |
104 |
997 |
2617 |
3276 |
2 |
| VCDI |
0 |
0 |
0 |
0 |
10 |
1492 |
1742 |
12 |
|
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