Validation of sea ice concentration - American sector
Bulletin date: 2023-08-10
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-08-04:
| 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 |
10316 |
8140 |
575 |
908 |
59 |
0 |
0 |
0 |
| OW |
0 |
115 |
214 |
1688 |
147 |
0 |
0 |
0 |
| VODI |
0 |
4 |
5 |
3387 |
1653 |
5 |
0 |
0 |
| ODI |
0 |
0 |
1 |
81 |
4691 |
569 |
7 |
0 |
| CDI |
0 |
0 |
0 |
36 |
1137 |
3591 |
2066 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
26 |
661 |
4380 |
1403 |
|
...date precedes bulletin
|
Date: 2023-08-06:
| 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 |
10738 |
8297 |
678 |
985 |
66 |
0 |
0 |
0 |
| OW |
0 |
401 |
242 |
1581 |
212 |
0 |
0 |
0 |
| VODI |
0 |
17 |
29 |
3010 |
1768 |
3 |
0 |
0 |
| ODI |
0 |
0 |
0 |
111 |
3690 |
1016 |
0 |
0 |
| CDI |
0 |
0 |
0 |
36 |
759 |
4495 |
1927 |
96 |
| VCDI |
0 |
0 |
0 |
3 |
23 |
2320 |
3287 |
76 |
|
...date precedes bulletin
|
Date: 2023-08-08:
| 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 |
10552 |
9247 |
643 |
915 |
73 |
0 |
0 |
0 |
| OW |
0 |
115 |
169 |
1227 |
87 |
0 |
0 |
0 |
| VODI |
0 |
11 |
17 |
3177 |
855 |
0 |
0 |
0 |
| ODI |
0 |
0 |
1 |
102 |
4404 |
363 |
1 |
0 |
| CDI |
0 |
0 |
0 |
43 |
1010 |
5402 |
1141 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
21 |
987 |
2784 |
2518 |
|
...date precedes bulletin
|
Date: 2023-08-10:
| 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 |
11566 |
8925 |
516 |
716 |
47 |
0 |
0 |
0 |
| OW |
0 |
232 |
371 |
1317 |
76 |
0 |
0 |
0 |
| VODI |
0 |
34 |
31 |
3120 |
718 |
0 |
0 |
0 |
| ODI |
0 |
0 |
1 |
217 |
3979 |
322 |
0 |
0 |
| CDI |
0 |
0 |
0 |
35 |
1393 |
5543 |
808 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
28 |
602 |
3938 |
1330 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11566 |
8939 |
570 |
817 |
43 |
0 |
0 |
0 |
| OW |
0 |
216 |
296 |
1189 |
82 |
0 |
0 |
0 |
| VODI |
0 |
36 |
52 |
3054 |
622 |
2 |
0 |
0 |
| ODI |
0 |
0 |
1 |
310 |
4032 |
325 |
6 |
0 |
| CDI |
0 |
0 |
0 |
35 |
1434 |
5528 |
811 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
28 |
612 |
3929 |
1330 |
|
Date: 2023-08-12:
| 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 |
12737 |
7941 |
485 |
845 |
44 |
0 |
0 |
0 |
| OW |
0 |
350 |
436 |
1460 |
98 |
0 |
0 |
0 |
| VODI |
0 |
42 |
62 |
2829 |
646 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
650 |
3433 |
389 |
0 |
0 |
| CDI |
0 |
0 |
0 |
58 |
1077 |
5372 |
1047 |
15 |
| VCDI |
0 |
0 |
0 |
5 |
19 |
583 |
4091 |
1152 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12736 |
8032 |
559 |
953 |
55 |
0 |
0 |
0 |
| OW |
1 |
231 |
333 |
1419 |
83 |
0 |
0 |
0 |
| VODI |
0 |
69 |
91 |
2682 |
716 |
0 |
0 |
0 |
| ODI |
0 |
1 |
0 |
730 |
3359 |
367 |
0 |
0 |
| CDI |
0 |
0 |
0 |
58 |
1085 |
5405 |
1088 |
12 |
| VCDI |
0 |
0 |
0 |
5 |
19 |
572 |
4050 |
1155 |
|
Date: 2023-08-14:
| 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 |
12806 |
8976 |
721 |
541 |
19 |
0 |
0 |
0 |
| OW |
0 |
188 |
565 |
1064 |
49 |
0 |
0 |
0 |
| VODI |
0 |
1 |
5 |
3511 |
403 |
27 |
0 |
0 |
| ODI |
0 |
0 |
0 |
242 |
4432 |
167 |
0 |
0 |
| CDI |
0 |
0 |
0 |
3 |
826 |
5124 |
154 |
4 |
| VCDI |
0 |
0 |
0 |
4 |
15 |
344 |
4217 |
1458 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12806 |
8357 |
623 |
869 |
49 |
0 |
0 |
0 |
| OW |
0 |
622 |
426 |
1211 |
58 |
0 |
0 |
0 |
| VODI |
0 |
186 |
241 |
2222 |
680 |
0 |
0 |
0 |
| ODI |
0 |
0 |
1 |
1008 |
3088 |
219 |
0 |
0 |
| CDI |
0 |
0 |
0 |
51 |
1850 |
5048 |
435 |
9 |
| VCDI |
0 |
0 |
0 |
4 |
19 |
395 |
3936 |
1453 |
|
Date: 2023-08-16:
| 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 |
13724 |
9011 |
738 |
579 |
24 |
0 |
0 |
0 |
| OW |
23 |
301 |
319 |
1246 |
34 |
0 |
0 |
0 |
| VODI |
0 |
195 |
90 |
2937 |
361 |
10 |
0 |
0 |
| ODI |
0 |
11 |
6 |
581 |
3576 |
249 |
0 |
0 |
| CDI |
0 |
0 |
0 |
7 |
1626 |
4217 |
164 |
22 |
| VCDI |
0 |
0 |
0 |
4 |
22 |
468 |
4224 |
1097 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13747 |
8254 |
450 |
721 |
37 |
0 |
0 |
0 |
| OW |
0 |
857 |
439 |
990 |
37 |
0 |
0 |
0 |
| VODI |
0 |
360 |
239 |
2215 |
449 |
0 |
0 |
0 |
| ODI |
0 |
26 |
21 |
1392 |
2576 |
69 |
3 |
0 |
| CDI |
0 |
21 |
4 |
32 |
2511 |
4391 |
434 |
68 |
| VCDI |
0 |
0 |
0 |
4 |
33 |
484 |
3951 |
1051 |
|
Date: 2023-08-18:
| 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 |
12755 |
10243 |
736 |
674 |
21 |
0 |
0 |
0 |
| OW |
16 |
560 |
354 |
1140 |
33 |
0 |
0 |
0 |
| VODI |
0 |
197 |
107 |
2863 |
323 |
2 |
0 |
0 |
| ODI |
0 |
8 |
1 |
824 |
3226 |
86 |
16 |
0 |
| CDI |
0 |
0 |
0 |
5 |
2162 |
3799 |
246 |
15 |
| VCDI |
0 |
4 |
0 |
0 |
13 |
1407 |
2740 |
1290 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12771 |
9620 |
546 |
764 |
38 |
0 |
0 |
0 |
| OW |
0 |
846 |
422 |
926 |
26 |
0 |
0 |
0 |
| VODI |
0 |
485 |
182 |
2138 |
391 |
0 |
0 |
0 |
| ODI |
0 |
41 |
38 |
1643 |
2147 |
33 |
16 |
0 |
| CDI |
0 |
16 |
10 |
33 |
3159 |
4037 |
516 |
71 |
| VCDI |
0 |
4 |
0 |
2 |
17 |
1224 |
2470 |
1234 |
|
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