Validation of sea ice concentration - American sector
Bulletin date: 2022-08-25
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2022-08-19:
| 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 |
6476 |
11363 |
1719 |
552 |
73 |
0 |
0 |
0 |
| OW |
0 |
234 |
539 |
692 |
97 |
16 |
0 |
0 |
| VODI |
0 |
64 |
161 |
2422 |
574 |
48 |
0 |
0 |
| ODI |
0 |
11 |
20 |
1006 |
2428 |
972 |
15 |
0 |
| CDI |
0 |
4 |
2 |
20 |
1943 |
4078 |
1970 |
106 |
| VCDI |
0 |
2 |
0 |
3 |
26 |
710 |
5028 |
2492 |
|
...date precedes bulletin
|
Date: 2022-08-21:
| 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 |
4918 |
12886 |
1672 |
785 |
65 |
1 |
0 |
0 |
| OW |
0 |
394 |
597 |
682 |
98 |
2 |
0 |
0 |
| VODI |
0 |
132 |
178 |
2198 |
554 |
28 |
0 |
0 |
| ODI |
0 |
47 |
29 |
954 |
2185 |
852 |
0 |
0 |
| CDI |
0 |
7 |
3 |
34 |
1835 |
4323 |
2075 |
12 |
| VCDI |
0 |
6 |
1 |
6 |
35 |
507 |
6127 |
1638 |
|
...date precedes bulletin
|
Date: 2022-08-23:
| 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 |
9757 |
10581 |
1149 |
538 |
63 |
0 |
0 |
0 |
| OW |
0 |
309 |
362 |
586 |
81 |
0 |
0 |
0 |
| VODI |
0 |
64 |
255 |
2029 |
567 |
58 |
0 |
0 |
| ODI |
0 |
6 |
6 |
384 |
1771 |
800 |
27 |
0 |
| CDI |
0 |
2 |
0 |
18 |
1244 |
4375 |
940 |
0 |
| VCDI |
0 |
4 |
0 |
4 |
31 |
1002 |
7272 |
1581 |
|
...date precedes bulletin
|
Date: 2022-08-25:
| 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 |
11714 |
8816 |
1559 |
575 |
22 |
0 |
0 |
0 |
| OW |
0 |
234 |
384 |
756 |
50 |
0 |
0 |
0 |
| VODI |
0 |
40 |
174 |
2051 |
426 |
7 |
0 |
0 |
| ODI |
0 |
3 |
1 |
506 |
1846 |
307 |
0 |
0 |
| CDI |
0 |
7 |
3 |
33 |
1954 |
4030 |
357 |
0 |
| VCDI |
0 |
4 |
1 |
5 |
34 |
2416 |
6799 |
752 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11714 |
8778 |
1625 |
669 |
25 |
0 |
0 |
0 |
| OW |
0 |
285 |
338 |
773 |
50 |
0 |
0 |
0 |
| VODI |
0 |
27 |
152 |
1905 |
394 |
6 |
0 |
0 |
| ODI |
0 |
3 |
3 |
538 |
1867 |
278 |
2 |
0 |
| CDI |
0 |
9 |
3 |
36 |
1961 |
4121 |
375 |
0 |
| VCDI |
0 |
2 |
1 |
5 |
35 |
2355 |
6779 |
752 |
|
Date: 2022-08-27:
| 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 |
7985 |
11629 |
2589 |
689 |
12 |
0 |
0 |
0 |
| OW |
0 |
165 |
530 |
928 |
29 |
0 |
0 |
0 |
| VODI |
0 |
19 |
150 |
2025 |
269 |
14 |
0 |
0 |
| ODI |
0 |
4 |
3 |
656 |
1833 |
180 |
32 |
0 |
| CDI |
0 |
2 |
5 |
92 |
1984 |
3354 |
811 |
3 |
| VCDI |
0 |
2 |
2 |
3 |
10 |
1923 |
7676 |
258 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7985 |
11647 |
2707 |
824 |
15 |
0 |
0 |
0 |
| OW |
0 |
142 |
434 |
819 |
29 |
0 |
0 |
0 |
| VODI |
0 |
26 |
128 |
1942 |
263 |
14 |
3 |
0 |
| ODI |
0 |
2 |
3 |
720 |
1735 |
195 |
31 |
0 |
| CDI |
0 |
4 |
5 |
85 |
2085 |
3347 |
830 |
2 |
| VCDI |
0 |
0 |
2 |
3 |
10 |
1915 |
7655 |
259 |
|
Date: 2022-08-29:
| 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 |
7987 |
11574 |
3779 |
1026 |
52 |
7 |
1 |
0 |
| OW |
0 |
55 |
275 |
908 |
41 |
0 |
0 |
0 |
| VODI |
0 |
38 |
94 |
1885 |
344 |
5 |
1 |
0 |
| ODI |
0 |
1 |
1 |
517 |
2725 |
237 |
35 |
0 |
| CDI |
0 |
6 |
2 |
43 |
1110 |
2951 |
371 |
6 |
| VCDI |
0 |
0 |
0 |
0 |
15 |
2913 |
6049 |
812 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7987 |
11473 |
3181 |
781 |
57 |
7 |
1 |
0 |
| OW |
0 |
139 |
539 |
606 |
54 |
1 |
1 |
0 |
| VODI |
0 |
54 |
421 |
1639 |
145 |
12 |
22 |
0 |
| ODI |
0 |
2 |
8 |
1058 |
1491 |
104 |
87 |
0 |
| CDI |
0 |
6 |
1 |
294 |
2525 |
2921 |
491 |
22 |
| VCDI |
0 |
0 |
1 |
1 |
15 |
3068 |
5855 |
796 |
|
Date: 2022-08-31:
| 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 |
6292 |
14390 |
3331 |
931 |
19 |
0 |
0 |
0 |
| OW |
0 |
140 |
252 |
689 |
52 |
2 |
0 |
0 |
| VODI |
0 |
39 |
268 |
1550 |
278 |
14 |
3 |
0 |
| ODI |
0 |
1 |
1 |
762 |
2130 |
388 |
54 |
0 |
| CDI |
0 |
5 |
2 |
71 |
1110 |
2545 |
515 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
24 |
3635 |
6014 |
357 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6292 |
14160 |
2638 |
721 |
35 |
0 |
0 |
0 |
| OW |
0 |
247 |
560 |
400 |
43 |
6 |
4 |
0 |
| VODI |
0 |
158 |
575 |
1285 |
166 |
14 |
43 |
0 |
| ODI |
0 |
4 |
78 |
1116 |
1228 |
148 |
89 |
0 |
| CDI |
0 |
5 |
2 |
478 |
2119 |
2732 |
555 |
0 |
| VCDI |
0 |
1 |
1 |
5 |
22 |
3684 |
5895 |
357 |
|
Date: 2022-09-02:
| 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 |
13386 |
9420 |
1627 |
706 |
17 |
8 |
1 |
0 |
| OW |
0 |
190 |
335 |
610 |
44 |
0 |
0 |
0 |
| VODI |
0 |
48 |
298 |
1406 |
221 |
48 |
0 |
0 |
| ODI |
0 |
1 |
2 |
829 |
1662 |
618 |
19 |
0 |
| CDI |
0 |
7 |
6 |
118 |
1270 |
2241 |
518 |
0 |
| VCDI |
0 |
0 |
0 |
7 |
130 |
3893 |
5445 |
735 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13386 |
9086 |
951 |
555 |
37 |
10 |
1 |
0 |
| OW |
0 |
367 |
453 |
285 |
48 |
24 |
0 |
0 |
| VODI |
0 |
205 |
669 |
1130 |
140 |
89 |
3 |
0 |
| ODI |
0 |
0 |
185 |
1072 |
880 |
284 |
49 |
0 |
| CDI |
0 |
8 |
10 |
630 |
2040 |
2237 |
581 |
25 |
| VCDI |
0 |
0 |
0 |
4 |
199 |
4164 |
5349 |
710 |
|
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