Validation of sea ice concentration - American sector
Bulletin date: 2022-07-21
Data source: OSI SAF N.H. AMSR 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 |
1427 |
6780 |
2578 |
1645 |
317 |
24 |
0 |
0 |
| OW |
2 |
75 |
201 |
942 |
434 |
7 |
0 |
0 |
| VODI |
0 |
51 |
94 |
961 |
706 |
40 |
0 |
0 |
| ODI |
0 |
46 |
69 |
359 |
1130 |
379 |
4 |
0 |
| CDI |
0 |
60 |
31 |
196 |
3036 |
4852 |
351 |
0 |
| VCDI |
0 |
17 |
25 |
54 |
1082 |
12092 |
5758 |
41 |
|
...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 |
2196 |
7463 |
1979 |
1406 |
383 |
25 |
0 |
0 |
| OW |
4 |
87 |
150 |
967 |
379 |
42 |
0 |
0 |
| VODI |
0 |
92 |
79 |
841 |
474 |
15 |
0 |
0 |
| ODI |
0 |
84 |
89 |
377 |
1091 |
230 |
25 |
0 |
| CDI |
0 |
93 |
71 |
248 |
3055 |
6235 |
338 |
0 |
| VCDI |
0 |
4 |
0 |
14 |
890 |
10240 |
6200 |
0 |
|
...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 |
1098 |
8840 |
2327 |
1622 |
370 |
44 |
0 |
0 |
| OW |
4 |
132 |
153 |
790 |
223 |
19 |
0 |
0 |
| VODI |
0 |
64 |
138 |
1074 |
637 |
12 |
0 |
0 |
| ODI |
0 |
47 |
70 |
392 |
2353 |
364 |
2 |
0 |
| CDI |
0 |
3 |
28 |
74 |
3173 |
5993 |
195 |
0 |
| VCDI |
0 |
4 |
0 |
2 |
556 |
10301 |
4762 |
0 |
|
...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 |
2672 |
7298 |
2552 |
1888 |
471 |
18 |
0 |
0 |
| OW |
0 |
147 |
209 |
787 |
160 |
0 |
0 |
0 |
| VODI |
0 |
79 |
103 |
1022 |
625 |
5 |
0 |
0 |
| ODI |
0 |
92 |
29 |
412 |
1972 |
551 |
0 |
0 |
| CDI |
0 |
15 |
4 |
137 |
2656 |
6467 |
283 |
0 |
| VCDI |
0 |
4 |
1 |
1 |
806 |
8471 |
5929 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2672 |
7307 |
2530 |
1876 |
436 |
17 |
0 |
0 |
| OW |
0 |
140 |
232 |
782 |
212 |
1 |
0 |
0 |
| VODI |
0 |
87 |
97 |
1032 |
574 |
5 |
0 |
0 |
| ODI |
0 |
87 |
35 |
415 |
1971 |
586 |
0 |
0 |
| CDI |
0 |
10 |
3 |
140 |
2704 |
6388 |
284 |
0 |
| VCDI |
0 |
4 |
1 |
2 |
793 |
8515 |
5928 |
0 |
|
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 |
2596 |
7971 |
2483 |
1907 |
389 |
7 |
0 |
0 |
| OW |
1 |
127 |
220 |
832 |
93 |
0 |
0 |
0 |
| VODI |
0 |
117 |
119 |
979 |
509 |
12 |
0 |
0 |
| ODI |
0 |
31 |
74 |
435 |
2013 |
419 |
2 |
0 |
| CDI |
0 |
1 |
6 |
249 |
3763 |
5053 |
825 |
0 |
| VCDI |
0 |
4 |
0 |
1 |
741 |
8839 |
5048 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2596 |
7990 |
2476 |
1911 |
376 |
7 |
0 |
0 |
| OW |
1 |
106 |
229 |
819 |
118 |
0 |
0 |
0 |
| VODI |
0 |
117 |
122 |
979 |
499 |
10 |
0 |
0 |
| ODI |
0 |
33 |
70 |
435 |
2018 |
486 |
2 |
0 |
| CDI |
0 |
1 |
4 |
258 |
3807 |
4925 |
787 |
0 |
| VCDI |
0 |
4 |
1 |
1 |
690 |
8902 |
5086 |
0 |
|
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 |
2892 |
9493 |
2121 |
1469 |
251 |
2 |
0 |
0 |
| OW |
0 |
107 |
169 |
695 |
53 |
1 |
0 |
0 |
| VODI |
0 |
37 |
66 |
1197 |
395 |
9 |
0 |
0 |
| ODI |
0 |
0 |
6 |
631 |
2697 |
361 |
0 |
0 |
| CDI |
0 |
0 |
2 |
128 |
3316 |
6325 |
388 |
0 |
| VCDI |
0 |
4 |
0 |
23 |
125 |
6956 |
5947 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2892 |
9211 |
2005 |
1486 |
270 |
3 |
0 |
0 |
| OW |
0 |
204 |
216 |
659 |
64 |
2 |
0 |
0 |
| VODI |
0 |
152 |
115 |
928 |
387 |
25 |
0 |
0 |
| ODI |
0 |
70 |
25 |
518 |
1798 |
531 |
7 |
0 |
| CDI |
0 |
0 |
2 |
497 |
3931 |
5655 |
1006 |
0 |
| VCDI |
0 |
4 |
1 |
55 |
387 |
7438 |
5322 |
0 |
|
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 |
1509 |
10039 |
3499 |
1505 |
180 |
0 |
0 |
0 |
| OW |
0 |
118 |
209 |
686 |
47 |
7 |
0 |
0 |
| VODI |
0 |
35 |
56 |
1037 |
433 |
17 |
0 |
0 |
| ODI |
0 |
2 |
8 |
610 |
2333 |
589 |
14 |
0 |
| CDI |
0 |
0 |
2 |
209 |
3754 |
5315 |
1354 |
0 |
| VCDI |
0 |
4 |
0 |
26 |
31 |
5221 |
6977 |
40 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1509 |
9806 |
3274 |
1492 |
192 |
3 |
0 |
0 |
| OW |
0 |
164 |
293 |
583 |
70 |
5 |
0 |
0 |
| VODI |
0 |
194 |
169 |
723 |
358 |
51 |
0 |
0 |
| ODI |
0 |
30 |
33 |
620 |
1609 |
729 |
32 |
0 |
| CDI |
0 |
0 |
4 |
595 |
4338 |
4855 |
1919 |
4 |
| VCDI |
0 |
4 |
1 |
60 |
211 |
5506 |
6394 |
36 |
|
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 |
935 |
11685 |
2629 |
1567 |
198 |
0 |
0 |
0 |
| OW |
0 |
110 |
174 |
655 |
111 |
4 |
0 |
0 |
| VODI |
0 |
48 |
51 |
768 |
639 |
51 |
0 |
0 |
| ODI |
0 |
12 |
2 |
661 |
1856 |
878 |
77 |
0 |
| CDI |
0 |
1 |
3 |
317 |
3281 |
4635 |
2485 |
0 |
| VCDI |
0 |
4 |
0 |
47 |
29 |
3595 |
8114 |
244 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
935 |
11384 |
2477 |
1546 |
211 |
3 |
0 |
0 |
| OW |
0 |
263 |
257 |
517 |
140 |
2 |
0 |
0 |
| VODI |
0 |
171 |
84 |
611 |
512 |
110 |
3 |
0 |
| ODI |
0 |
36 |
37 |
531 |
1291 |
845 |
141 |
0 |
| CDI |
0 |
2 |
4 |
648 |
3873 |
4629 |
2868 |
0 |
| VCDI |
0 |
4 |
0 |
162 |
87 |
3574 |
7664 |
244 |
|
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