Validation of sea ice concentration - American sector
Bulletin date: 2021-07-22
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2021-07-16:
| 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 |
7482 |
6054 |
99 |
347 |
127 |
2 |
0 |
0 |
| OW |
0 |
207 |
49 |
455 |
253 |
5 |
0 |
0 |
| VODI |
0 |
33 |
17 |
450 |
840 |
33 |
0 |
0 |
| ODI |
0 |
2 |
0 |
32 |
1822 |
1647 |
0 |
0 |
| CDI |
0 |
0 |
0 |
9 |
756 |
8961 |
90 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
140 |
10763 |
5191 |
0 |
|
...date precedes bulletin
|
Date: 2021-07-18:
| 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 |
8017 |
5789 |
79 |
396 |
106 |
0 |
0 |
0 |
| OW |
0 |
215 |
62 |
591 |
234 |
5 |
0 |
0 |
| VODI |
0 |
47 |
16 |
385 |
1055 |
25 |
0 |
0 |
| ODI |
0 |
2 |
0 |
94 |
3107 |
498 |
0 |
0 |
| CDI |
0 |
0 |
0 |
5 |
2632 |
6413 |
8 |
0 |
| VCDI |
0 |
2 |
0 |
8 |
176 |
10847 |
4961 |
91 |
|
...date precedes bulletin
|
Date: 2021-07-20:
| 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 |
8105 |
5972 |
96 |
376 |
83 |
0 |
0 |
0 |
| OW |
0 |
128 |
46 |
563 |
188 |
0 |
0 |
0 |
| VODI |
0 |
17 |
8 |
452 |
852 |
5 |
0 |
0 |
| ODI |
0 |
0 |
1 |
53 |
4102 |
1096 |
0 |
0 |
| CDI |
0 |
0 |
0 |
10 |
1872 |
6958 |
1 |
0 |
| VCDI |
0 |
2 |
0 |
9 |
393 |
7163 |
7125 |
190 |
|
...date precedes bulletin
|
Date: 2021-07-22:
| 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 |
9769 |
4559 |
86 |
361 |
89 |
0 |
0 |
0 |
| OW |
0 |
235 |
56 |
477 |
169 |
0 |
0 |
0 |
| VODI |
0 |
36 |
10 |
432 |
1217 |
9 |
0 |
0 |
| ODI |
0 |
1 |
0 |
59 |
3379 |
2001 |
0 |
0 |
| CDI |
0 |
1 |
0 |
8 |
1153 |
7426 |
56 |
0 |
| VCDI |
0 |
2 |
0 |
19 |
563 |
11615 |
2078 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9769 |
4590 |
82 |
360 |
139 |
0 |
0 |
0 |
| OW |
0 |
202 |
56 |
470 |
160 |
0 |
0 |
0 |
| VODI |
0 |
38 |
14 |
453 |
1233 |
12 |
0 |
0 |
| ODI |
0 |
1 |
0 |
44 |
3232 |
2151 |
1 |
0 |
| CDI |
0 |
0 |
0 |
10 |
1244 |
7235 |
50 |
0 |
| VCDI |
0 |
3 |
0 |
19 |
562 |
11653 |
2083 |
0 |
|
Date: 2021-07-24:
| 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 |
9532 |
4979 |
91 |
392 |
149 |
0 |
0 |
0 |
| OW |
0 |
254 |
46 |
443 |
209 |
1 |
0 |
0 |
| VODI |
0 |
47 |
14 |
419 |
1442 |
56 |
0 |
0 |
| ODI |
0 |
0 |
0 |
62 |
3571 |
1819 |
0 |
0 |
| CDI |
0 |
0 |
0 |
14 |
1190 |
6805 |
80 |
0 |
| VCDI |
0 |
0 |
0 |
59 |
374 |
7018 |
6571 |
229 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9532 |
4992 |
93 |
453 |
197 |
0 |
0 |
0 |
| OW |
0 |
247 |
44 |
368 |
237 |
2 |
0 |
0 |
| VODI |
0 |
41 |
14 |
434 |
1377 |
53 |
0 |
0 |
| ODI |
0 |
0 |
0 |
60 |
3378 |
2027 |
0 |
0 |
| CDI |
0 |
0 |
0 |
9 |
1396 |
6497 |
85 |
0 |
| VCDI |
0 |
0 |
0 |
65 |
350 |
7120 |
6566 |
229 |
|
Date: 2021-07-26:
| 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 |
10104 |
4820 |
72 |
346 |
57 |
0 |
0 |
0 |
| OW |
7 |
226 |
61 |
346 |
75 |
0 |
0 |
0 |
| VODI |
0 |
7 |
10 |
769 |
470 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
104 |
4711 |
619 |
0 |
0 |
| CDI |
0 |
0 |
0 |
14 |
848 |
8689 |
200 |
0 |
| VCDI |
0 |
0 |
0 |
56 |
427 |
4931 |
7222 |
675 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10105 |
4780 |
94 |
549 |
144 |
0 |
0 |
0 |
| OW |
6 |
242 |
35 |
372 |
251 |
0 |
0 |
0 |
| VODI |
0 |
31 |
14 |
571 |
1666 |
21 |
0 |
0 |
| ODI |
0 |
0 |
0 |
71 |
3126 |
2071 |
2 |
0 |
| CDI |
0 |
0 |
0 |
3 |
951 |
6213 |
193 |
0 |
| VCDI |
0 |
0 |
0 |
69 |
450 |
5934 |
7227 |
675 |
|
Date: 2021-07-28:
| 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 |
10326 |
4899 |
56 |
351 |
54 |
0 |
0 |
0 |
| OW |
2 |
291 |
62 |
336 |
96 |
0 |
0 |
0 |
| VODI |
0 |
61 |
24 |
784 |
675 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
136 |
3626 |
1690 |
1 |
0 |
| CDI |
0 |
0 |
0 |
15 |
1195 |
7605 |
671 |
0 |
| VCDI |
0 |
0 |
0 |
60 |
394 |
4788 |
6973 |
695 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10326 |
4938 |
85 |
530 |
171 |
0 |
0 |
0 |
| OW |
2 |
235 |
39 |
426 |
354 |
0 |
0 |
0 |
| VODI |
0 |
78 |
18 |
591 |
1793 |
112 |
0 |
0 |
| ODI |
0 |
0 |
0 |
52 |
2366 |
2422 |
22 |
0 |
| CDI |
0 |
0 |
0 |
9 |
915 |
5994 |
711 |
0 |
| VCDI |
0 |
0 |
0 |
74 |
441 |
5555 |
6912 |
695 |
|
Date: 2021-07-30:
| 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 |
9875 |
5624 |
56 |
358 |
40 |
0 |
0 |
0 |
| OW |
1 |
377 |
44 |
350 |
109 |
0 |
0 |
0 |
| VODI |
0 |
176 |
37 |
829 |
638 |
1 |
0 |
0 |
| ODI |
0 |
10 |
3 |
187 |
3709 |
1770 |
1 |
0 |
| CDI |
0 |
0 |
0 |
16 |
1255 |
7395 |
1342 |
0 |
| VCDI |
0 |
0 |
0 |
44 |
371 |
4158 |
5627 |
1463 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9874 |
5688 |
81 |
615 |
215 |
0 |
0 |
0 |
| OW |
2 |
314 |
35 |
570 |
404 |
0 |
0 |
0 |
| VODI |
0 |
184 |
24 |
481 |
1609 |
502 |
0 |
0 |
| ODI |
0 |
1 |
0 |
47 |
2477 |
1923 |
50 |
0 |
| CDI |
0 |
0 |
0 |
16 |
971 |
5890 |
1379 |
0 |
| VCDI |
0 |
0 |
0 |
55 |
446 |
5009 |
5541 |
1463 |
|
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