Validation of sea ice concentration - American sector
Bulletin date: 2023-09-14
Data source: OSI SAF N.H. 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 |
21417 |
8036 |
176 |
85 |
1 |
0 |
0 |
0 |
| OW |
0 |
399 |
273 |
374 |
3 |
0 |
0 |
0 |
| VODI |
0 |
19 |
36 |
1016 |
108 |
0 |
0 |
0 |
| ODI |
0 |
4 |
1 |
792 |
1465 |
140 |
0 |
0 |
| CDI |
0 |
0 |
0 |
102 |
1572 |
4101 |
496 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
31 |
3930 |
1285 |
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 |
22875 |
6283 |
300 |
229 |
2 |
0 |
0 |
0 |
| OW |
3 |
526 |
199 |
415 |
29 |
0 |
0 |
0 |
| VODI |
0 |
41 |
63 |
698 |
393 |
0 |
0 |
0 |
| ODI |
0 |
2 |
18 |
388 |
1433 |
98 |
0 |
0 |
| CDI |
0 |
0 |
0 |
178 |
1954 |
2663 |
135 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
21 |
4733 |
2184 |
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 |
22158 |
7590 |
432 |
427 |
19 |
0 |
0 |
0 |
| OW |
0 |
45 |
88 |
397 |
76 |
0 |
0 |
0 |
| VODI |
0 |
12 |
4 |
749 |
454 |
19 |
0 |
0 |
| ODI |
0 |
1 |
0 |
110 |
2070 |
613 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
530 |
4705 |
879 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
16 |
2385 |
2084 |
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 |
24066 |
6057 |
235 |
288 |
22 |
0 |
0 |
0 |
| OW |
0 |
140 |
140 |
383 |
41 |
0 |
0 |
0 |
| VODI |
0 |
23 |
53 |
767 |
289 |
42 |
0 |
0 |
| ODI |
0 |
0 |
1 |
314 |
1502 |
765 |
17 |
0 |
| CDI |
0 |
0 |
0 |
30 |
981 |
2194 |
1529 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
12 |
2651 |
3316 |
8 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24066 |
6116 |
276 |
341 |
22 |
0 |
0 |
0 |
| OW |
0 |
97 |
113 |
359 |
23 |
0 |
0 |
0 |
| VODI |
0 |
7 |
40 |
799 |
369 |
31 |
0 |
0 |
| ODI |
0 |
0 |
0 |
253 |
1661 |
713 |
19 |
0 |
| CDI |
0 |
0 |
0 |
30 |
759 |
2593 |
1668 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
13 |
2315 |
3175 |
8 |
|
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 |
24481 |
5738 |
198 |
213 |
16 |
0 |
0 |
0 |
| OW |
0 |
239 |
167 |
359 |
27 |
2 |
0 |
0 |
| VODI |
0 |
63 |
70 |
728 |
244 |
36 |
0 |
0 |
| ODI |
0 |
0 |
20 |
434 |
1205 |
707 |
4 |
0 |
| CDI |
0 |
0 |
0 |
135 |
966 |
2391 |
1015 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
51 |
1385 |
4957 |
15 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24481 |
5847 |
275 |
287 |
20 |
0 |
0 |
0 |
| OW |
0 |
164 |
83 |
327 |
25 |
1 |
0 |
0 |
| VODI |
0 |
29 |
94 |
718 |
331 |
28 |
0 |
0 |
| ODI |
0 |
0 |
3 |
415 |
1343 |
645 |
6 |
0 |
| CDI |
0 |
0 |
0 |
122 |
748 |
2680 |
1262 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
42 |
1167 |
4708 |
15 |
|
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 |
23034 |
7359 |
281 |
174 |
11 |
0 |
0 |
0 |
| OW |
0 |
102 |
186 |
432 |
2 |
0 |
0 |
0 |
| VODI |
0 |
4 |
3 |
1071 |
189 |
7 |
0 |
0 |
| ODI |
0 |
0 |
1 |
113 |
1799 |
96 |
1 |
0 |
| CDI |
0 |
0 |
0 |
0 |
444 |
3602 |
156 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
13 |
922 |
5769 |
91 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
23034 |
7128 |
275 |
276 |
12 |
0 |
0 |
0 |
| OW |
0 |
273 |
110 |
304 |
21 |
2 |
0 |
0 |
| VODI |
0 |
64 |
74 |
744 |
276 |
39 |
0 |
0 |
| ODI |
0 |
0 |
12 |
307 |
1217 |
517 |
15 |
0 |
| CDI |
0 |
0 |
0 |
159 |
894 |
3175 |
820 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
38 |
894 |
5091 |
91 |
|
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 |
23430 |
6842 |
405 |
226 |
5 |
0 |
0 |
0 |
| OW |
0 |
187 |
160 |
456 |
24 |
0 |
0 |
0 |
| VODI |
0 |
6 |
10 |
917 |
229 |
4 |
0 |
0 |
| ODI |
0 |
0 |
2 |
160 |
1526 |
110 |
0 |
0 |
| CDI |
0 |
0 |
0 |
1 |
729 |
3325 |
310 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
11 |
1545 |
5243 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
23430 |
6550 |
344 |
253 |
8 |
0 |
0 |
0 |
| OW |
0 |
340 |
119 |
290 |
37 |
0 |
0 |
0 |
| VODI |
0 |
144 |
110 |
738 |
203 |
28 |
0 |
0 |
| ODI |
0 |
1 |
3 |
352 |
1167 |
317 |
15 |
0 |
| CDI |
0 |
0 |
1 |
127 |
1094 |
3188 |
729 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
15 |
1451 |
4809 |
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 |
24069 |
5925 |
219 |
156 |
5 |
0 |
0 |
0 |
| OW |
0 |
305 |
199 |
581 |
55 |
1 |
0 |
0 |
| VODI |
0 |
10 |
34 |
707 |
389 |
22 |
0 |
0 |
| ODI |
0 |
0 |
1 |
272 |
1142 |
263 |
4 |
0 |
| CDI |
0 |
0 |
0 |
25 |
598 |
3141 |
793 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
40 |
798 |
5906 |
201 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24069 |
5841 |
205 |
227 |
10 |
0 |
0 |
0 |
| OW |
0 |
292 |
121 |
345 |
53 |
0 |
0 |
0 |
| VODI |
0 |
105 |
115 |
565 |
373 |
13 |
0 |
0 |
| ODI |
0 |
2 |
12 |
348 |
923 |
431 |
7 |
0 |
| CDI |
0 |
0 |
0 |
257 |
830 |
3016 |
992 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
40 |
765 |
5704 |
201 |
|
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