Validation of sea ice concentration - American sector
Bulletin date: 2023-07-13
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-07-07:
| 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 |
5086 |
7348 |
364 |
506 |
121 |
19 |
0 |
0 |
| OW |
0 |
79 |
97 |
384 |
68 |
19 |
0 |
0 |
| VODI |
0 |
8 |
14 |
444 |
485 |
62 |
12 |
0 |
| ODI |
0 |
0 |
0 |
161 |
2248 |
490 |
28 |
0 |
| CDI |
0 |
0 |
0 |
37 |
2302 |
9452 |
535 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
471 |
11127 |
3899 |
0 |
|
...date precedes bulletin
|
Date: 2023-07-09:
| 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 |
6329 |
6380 |
342 |
506 |
123 |
14 |
0 |
0 |
| OW |
3 |
79 |
113 |
366 |
116 |
22 |
0 |
0 |
| VODI |
0 |
10 |
25 |
510 |
774 |
67 |
0 |
0 |
| ODI |
0 |
0 |
0 |
219 |
2528 |
438 |
2 |
0 |
| CDI |
0 |
0 |
0 |
101 |
4823 |
7331 |
169 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
266 |
11891 |
2319 |
0 |
|
...date precedes bulletin
|
Date: 2023-07-11:
| 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 |
4336 |
8292 |
748 |
543 |
134 |
2 |
0 |
0 |
| OW |
2 |
12 |
47 |
438 |
59 |
5 |
0 |
0 |
| VODI |
0 |
0 |
2 |
708 |
741 |
36 |
0 |
0 |
| ODI |
0 |
0 |
0 |
201 |
4474 |
629 |
1 |
0 |
| CDI |
0 |
0 |
0 |
25 |
3890 |
12139 |
280 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
213 |
6099 |
1810 |
0 |
|
...date precedes bulletin
|
Date: 2023-07-13:
| 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 |
6290 |
7009 |
375 |
457 |
136 |
3 |
0 |
0 |
| OW |
1 |
23 |
61 |
536 |
62 |
18 |
0 |
0 |
| VODI |
0 |
4 |
18 |
823 |
1149 |
89 |
0 |
0 |
| ODI |
0 |
0 |
1 |
225 |
4776 |
588 |
7 |
0 |
| CDI |
0 |
0 |
0 |
30 |
4220 |
11716 |
301 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
111 |
5966 |
870 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6290 |
7004 |
369 |
489 |
141 |
1 |
0 |
0 |
| OW |
1 |
28 |
69 |
478 |
97 |
19 |
0 |
0 |
| VODI |
0 |
4 |
16 |
798 |
1066 |
97 |
0 |
0 |
| ODI |
0 |
0 |
1 |
282 |
4448 |
551 |
8 |
0 |
| CDI |
0 |
0 |
0 |
24 |
4585 |
11688 |
332 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
117 |
6024 |
838 |
0 |
|
Date: 2023-07-15:
| 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 |
8158 |
5421 |
369 |
436 |
116 |
8 |
0 |
0 |
| OW |
0 |
69 |
83 |
687 |
148 |
15 |
0 |
0 |
| VODI |
0 |
13 |
36 |
846 |
1606 |
84 |
0 |
0 |
| ODI |
0 |
0 |
2 |
262 |
5104 |
307 |
8 |
0 |
| CDI |
0 |
0 |
0 |
15 |
7192 |
8167 |
228 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
472 |
5323 |
690 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8158 |
5405 |
350 |
486 |
125 |
8 |
0 |
0 |
| OW |
0 |
92 |
102 |
591 |
176 |
19 |
0 |
0 |
| VODI |
0 |
6 |
33 |
832 |
1513 |
98 |
0 |
0 |
| ODI |
0 |
0 |
5 |
326 |
4634 |
312 |
9 |
0 |
| CDI |
0 |
0 |
0 |
11 |
7723 |
8132 |
283 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
467 |
5335 |
634 |
0 |
|
Date: 2023-07-17:
| 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 |
7966 |
5788 |
457 |
413 |
92 |
19 |
0 |
0 |
| OW |
0 |
26 |
95 |
631 |
52 |
6 |
0 |
0 |
| VODI |
0 |
4 |
1 |
1243 |
709 |
31 |
0 |
0 |
| ODI |
0 |
0 |
0 |
114 |
9991 |
394 |
0 |
0 |
| CDI |
0 |
0 |
0 |
2 |
2966 |
10029 |
277 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
5 |
3684 |
871 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7966 |
5665 |
412 |
596 |
122 |
21 |
0 |
0 |
| OW |
0 |
123 |
96 |
727 |
306 |
31 |
0 |
0 |
| VODI |
0 |
30 |
45 |
826 |
1985 |
92 |
0 |
0 |
| ODI |
0 |
0 |
0 |
252 |
4848 |
594 |
0 |
0 |
| CDI |
0 |
0 |
0 |
2 |
6474 |
8091 |
354 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
80 |
5334 |
794 |
0 |
|
Date: 2023-07-19:
| 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 |
7961 |
6216 |
446 |
490 |
94 |
17 |
0 |
0 |
| OW |
0 |
65 |
131 |
736 |
98 |
1 |
0 |
0 |
| VODI |
0 |
27 |
3 |
1351 |
1233 |
36 |
0 |
0 |
| ODI |
0 |
2 |
0 |
349 |
9035 |
647 |
7 |
0 |
| CDI |
0 |
2 |
0 |
22 |
2504 |
9557 |
685 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
9 |
3260 |
882 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7961 |
6042 |
400 |
746 |
151 |
17 |
0 |
0 |
| OW |
0 |
196 |
118 |
866 |
392 |
11 |
0 |
0 |
| VODI |
0 |
69 |
52 |
930 |
2033 |
97 |
0 |
0 |
| ODI |
0 |
3 |
10 |
341 |
4673 |
706 |
34 |
0 |
| CDI |
0 |
2 |
0 |
65 |
5680 |
7995 |
584 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
44 |
4692 |
956 |
0 |
|
Date: 2023-07-21:
| 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 |
8047 |
6565 |
370 |
515 |
95 |
18 |
0 |
0 |
| OW |
0 |
107 |
129 |
973 |
160 |
9 |
0 |
0 |
| VODI |
0 |
12 |
5 |
1677 |
1613 |
31 |
0 |
0 |
| ODI |
0 |
2 |
0 |
561 |
8462 |
408 |
2 |
0 |
| CDI |
0 |
2 |
0 |
23 |
3283 |
8915 |
373 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
83 |
2921 |
505 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8047 |
6377 |
317 |
1077 |
182 |
20 |
0 |
0 |
| OW |
0 |
263 |
110 |
976 |
399 |
14 |
0 |
0 |
| VODI |
0 |
44 |
77 |
894 |
2030 |
126 |
0 |
0 |
| ODI |
0 |
2 |
0 |
610 |
5073 |
381 |
14 |
0 |
| CDI |
0 |
2 |
0 |
188 |
5789 |
7008 |
244 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
223 |
4753 |
622 |
0 |
|
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