Validation of sea ice concentration - American sector
Bulletin date: 2022-07-21
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2022-07-15:
| 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 |
5324 |
6396 |
108 |
695 |
248 |
0 |
0 |
0 |
| OW |
2 |
506 |
75 |
768 |
310 |
0 |
0 |
0 |
| VODI |
0 |
131 |
44 |
1171 |
495 |
11 |
0 |
0 |
| ODI |
0 |
78 |
10 |
349 |
1365 |
185 |
0 |
0 |
| CDI |
0 |
121 |
8 |
152 |
2983 |
4896 |
366 |
0 |
| VCDI |
0 |
118 |
4 |
108 |
899 |
9852 |
7108 |
980 |
|
...date precedes bulletin
|
Date: 2022-07-17:
| 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 |
5239 |
6751 |
101 |
1006 |
355 |
0 |
0 |
0 |
| OW |
2 |
307 |
49 |
916 |
355 |
0 |
0 |
0 |
| VODI |
0 |
108 |
14 |
953 |
412 |
14 |
0 |
0 |
| ODI |
0 |
135 |
13 |
337 |
1260 |
123 |
28 |
0 |
| CDI |
0 |
150 |
8 |
121 |
3076 |
6145 |
540 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
701 |
8446 |
7999 |
197 |
|
...date precedes bulletin
|
Date: 2022-07-19:
| 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 |
5285 |
7641 |
137 |
981 |
257 |
0 |
0 |
0 |
| OW |
1 |
379 |
62 |
777 |
98 |
4 |
0 |
0 |
| VODI |
0 |
119 |
23 |
1279 |
493 |
11 |
0 |
0 |
| ODI |
0 |
113 |
0 |
218 |
2685 |
212 |
0 |
0 |
| CDI |
0 |
31 |
0 |
4 |
2993 |
6072 |
366 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
475 |
8188 |
6956 |
2 |
|
...date precedes bulletin
|
Date: 2022-07-21:
| 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 |
5625 |
7740 |
156 |
1147 |
231 |
0 |
0 |
0 |
| OW |
0 |
417 |
62 |
737 |
87 |
0 |
0 |
0 |
| VODI |
0 |
133 |
22 |
1180 |
498 |
1 |
0 |
0 |
| ODI |
0 |
120 |
3 |
313 |
2229 |
391 |
0 |
0 |
| CDI |
0 |
13 |
0 |
13 |
2788 |
6171 |
577 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
675 |
6224 |
6865 |
1443 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
5625 |
7686 |
148 |
1162 |
217 |
0 |
0 |
0 |
| OW |
0 |
477 |
70 |
716 |
103 |
1 |
0 |
0 |
| VODI |
0 |
139 |
21 |
1171 |
463 |
1 |
0 |
0 |
| ODI |
0 |
114 |
4 |
324 |
2230 |
422 |
0 |
0 |
| CDI |
0 |
7 |
0 |
17 |
2833 |
6113 |
559 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
662 |
6250 |
6883 |
1443 |
|
Date: 2022-07-23:
| 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 |
6277 |
7730 |
129 |
934 |
283 |
0 |
0 |
0 |
| OW |
1 |
474 |
67 |
648 |
83 |
0 |
0 |
0 |
| VODI |
0 |
195 |
26 |
1104 |
411 |
0 |
0 |
0 |
| ODI |
0 |
104 |
3 |
349 |
2320 |
198 |
0 |
0 |
| CDI |
0 |
8 |
1 |
51 |
3655 |
5208 |
912 |
62 |
| VCDI |
0 |
0 |
0 |
17 |
540 |
6926 |
5746 |
1404 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6277 |
7695 |
128 |
981 |
275 |
0 |
0 |
0 |
| OW |
1 |
512 |
63 |
594 |
103 |
0 |
0 |
0 |
| VODI |
0 |
191 |
30 |
1099 |
407 |
0 |
0 |
0 |
| ODI |
0 |
101 |
5 |
359 |
2296 |
283 |
0 |
0 |
| CDI |
0 |
11 |
0 |
55 |
3709 |
5080 |
910 |
17 |
| VCDI |
0 |
1 |
0 |
15 |
502 |
6969 |
5748 |
1449 |
|
Date: 2022-07-25:
| 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 |
6798 |
8208 |
156 |
971 |
95 |
0 |
0 |
0 |
| OW |
0 |
339 |
78 |
567 |
41 |
0 |
0 |
0 |
| VODI |
0 |
30 |
15 |
1312 |
347 |
0 |
0 |
0 |
| ODI |
0 |
20 |
2 |
399 |
3160 |
114 |
0 |
0 |
| CDI |
0 |
17 |
1 |
51 |
2963 |
6728 |
399 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
89 |
5153 |
6841 |
968 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6798 |
7728 |
149 |
1076 |
116 |
0 |
0 |
0 |
| OW |
0 |
540 |
63 |
490 |
52 |
0 |
0 |
0 |
| VODI |
0 |
219 |
35 |
983 |
369 |
1 |
0 |
0 |
| ODI |
0 |
105 |
4 |
448 |
2027 |
358 |
7 |
0 |
| CDI |
0 |
20 |
1 |
288 |
3803 |
5936 |
1016 |
27 |
| VCDI |
0 |
2 |
0 |
19 |
328 |
5700 |
6217 |
941 |
|
Date: 2022-07-27:
| 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 |
7140 |
8562 |
136 |
795 |
99 |
0 |
0 |
0 |
| OW |
0 |
375 |
72 |
560 |
60 |
0 |
0 |
0 |
| VODI |
0 |
60 |
31 |
1126 |
360 |
1 |
0 |
0 |
| ODI |
0 |
3 |
1 |
425 |
2835 |
278 |
14 |
0 |
| CDI |
0 |
0 |
0 |
31 |
3418 |
5755 |
1430 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
59 |
3377 |
6237 |
2622 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7140 |
7981 |
141 |
887 |
127 |
0 |
0 |
0 |
| OW |
0 |
578 |
46 |
429 |
62 |
0 |
0 |
0 |
| VODI |
0 |
397 |
50 |
676 |
363 |
9 |
0 |
0 |
| ODI |
0 |
43 |
3 |
568 |
1904 |
506 |
29 |
0 |
| CDI |
0 |
1 |
0 |
375 |
4152 |
5192 |
1926 |
69 |
| VCDI |
0 |
0 |
0 |
6 |
223 |
3704 |
5726 |
2553 |
|
Date: 2022-07-29:
| 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 |
7380 |
8883 |
141 |
544 |
66 |
0 |
0 |
0 |
| OW |
0 |
318 |
75 |
586 |
75 |
0 |
0 |
0 |
| VODI |
0 |
44 |
20 |
920 |
572 |
1 |
0 |
0 |
| ODI |
0 |
2 |
1 |
532 |
2310 |
635 |
6 |
0 |
| CDI |
0 |
1 |
0 |
169 |
3442 |
4879 |
2028 |
203 |
| VCDI |
0 |
0 |
0 |
18 |
41 |
2049 |
5643 |
4282 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7380 |
8368 |
131 |
587 |
90 |
0 |
0 |
0 |
| OW |
0 |
614 |
56 |
428 |
81 |
0 |
0 |
0 |
| VODI |
0 |
240 |
42 |
618 |
540 |
51 |
0 |
0 |
| ODI |
0 |
25 |
7 |
558 |
1532 |
711 |
48 |
0 |
| CDI |
0 |
1 |
1 |
495 |
4145 |
4661 |
2450 |
271 |
| VCDI |
0 |
0 |
0 |
83 |
118 |
2141 |
5179 |
4214 |
|
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