Validation of sea ice concentration - American sector
Bulletin date: 2021-06-24
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2021-06-18:
| 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 |
0 |
3283 |
130 |
858 |
209 |
35 |
0 |
0 |
| OW |
0 |
340 |
43 |
594 |
313 |
17 |
0 |
0 |
| VODI |
0 |
126 |
14 |
501 |
909 |
42 |
0 |
0 |
| ODI |
0 |
96 |
9 |
249 |
1101 |
294 |
8 |
0 |
| CDI |
0 |
257 |
20 |
219 |
1686 |
4978 |
131 |
0 |
| VCDI |
0 |
44 |
5 |
133 |
1247 |
13091 |
5965 |
8919 |
|
...date precedes bulletin
|
Date: 2021-06-20:
| 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 |
68 |
3603 |
136 |
920 |
229 |
0 |
0 |
0 |
| OW |
7 |
318 |
38 |
627 |
511 |
6 |
0 |
0 |
| VODI |
0 |
166 |
15 |
412 |
826 |
21 |
0 |
0 |
| ODI |
0 |
131 |
12 |
246 |
1169 |
396 |
12 |
0 |
| CDI |
0 |
211 |
18 |
165 |
1415 |
4731 |
586 |
0 |
| VCDI |
0 |
62 |
9 |
97 |
1890 |
15466 |
8449 |
2898 |
|
...date precedes bulletin
|
Date: 2021-06-22:
| 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 |
126 |
4441 |
164 |
929 |
224 |
0 |
0 |
0 |
| OW |
7 |
188 |
30 |
723 |
236 |
0 |
0 |
0 |
| VODI |
0 |
78 |
10 |
553 |
764 |
12 |
0 |
0 |
| ODI |
0 |
70 |
11 |
219 |
1907 |
301 |
17 |
0 |
| CDI |
0 |
101 |
12 |
126 |
1723 |
4982 |
197 |
0 |
| VCDI |
0 |
1 |
1 |
49 |
2890 |
13996 |
6146 |
4632 |
|
...date precedes bulletin
|
Date: 2021-06-24:
| 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 |
246 |
4872 |
166 |
887 |
122 |
20 |
0 |
0 |
| OW |
4 |
235 |
39 |
752 |
257 |
9 |
0 |
0 |
| VODI |
0 |
116 |
20 |
564 |
821 |
20 |
0 |
0 |
| ODI |
0 |
84 |
17 |
228 |
2263 |
55 |
10 |
0 |
| CDI |
0 |
104 |
12 |
165 |
3071 |
3259 |
390 |
0 |
| VCDI |
0 |
2 |
1 |
75 |
1530 |
14904 |
6621 |
3925 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
246 |
4911 |
179 |
1048 |
143 |
24 |
0 |
0 |
| OW |
4 |
194 |
33 |
623 |
224 |
6 |
0 |
0 |
| VODI |
0 |
101 |
11 |
491 |
900 |
22 |
0 |
0 |
| ODI |
0 |
89 |
17 |
265 |
2176 |
66 |
10 |
0 |
| CDI |
0 |
117 |
15 |
171 |
3082 |
3212 |
392 |
0 |
| VCDI |
0 |
1 |
0 |
73 |
1539 |
14937 |
6619 |
3925 |
|
Date: 2021-06-26:
| 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 |
597 |
5391 |
143 |
706 |
115 |
15 |
0 |
0 |
| OW |
6 |
341 |
33 |
581 |
261 |
10 |
0 |
0 |
| VODI |
0 |
160 |
27 |
519 |
1076 |
143 |
2 |
0 |
| ODI |
0 |
93 |
14 |
316 |
2277 |
107 |
9 |
0 |
| CDI |
0 |
91 |
8 |
220 |
1942 |
3073 |
1441 |
0 |
| VCDI |
0 |
7 |
6 |
102 |
1785 |
9643 |
9588 |
5018 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
597 |
5501 |
155 |
803 |
144 |
17 |
0 |
0 |
| OW |
6 |
262 |
27 |
469 |
405 |
11 |
0 |
0 |
| VODI |
0 |
121 |
23 |
503 |
949 |
174 |
3 |
0 |
| ODI |
0 |
76 |
9 |
329 |
1957 |
85 |
7 |
0 |
| CDI |
0 |
118 |
12 |
239 |
2213 |
3048 |
1351 |
0 |
| VCDI |
0 |
5 |
5 |
101 |
1788 |
9656 |
9679 |
5018 |
|
Date: 2021-06-28:
| 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 |
824 |
5985 |
139 |
550 |
98 |
26 |
0 |
0 |
| OW |
1 |
246 |
52 |
516 |
90 |
11 |
0 |
0 |
| VODI |
0 |
93 |
25 |
977 |
720 |
28 |
5 |
0 |
| ODI |
0 |
48 |
8 |
197 |
3176 |
278 |
14 |
0 |
| CDI |
0 |
91 |
11 |
277 |
2125 |
3510 |
453 |
0 |
| VCDI |
0 |
6 |
2 |
58 |
2259 |
8147 |
10157 |
4663 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
824 |
5767 |
134 |
765 |
245 |
32 |
0 |
0 |
| OW |
1 |
275 |
46 |
407 |
625 |
19 |
0 |
0 |
| VODI |
0 |
131 |
27 |
607 |
903 |
55 |
7 |
0 |
| ODI |
0 |
98 |
7 |
316 |
1503 |
498 |
14 |
0 |
| CDI |
0 |
151 |
13 |
321 |
2266 |
2902 |
1922 |
17 |
| VCDI |
0 |
47 |
10 |
159 |
2926 |
8494 |
8686 |
4646 |
|
Date: 2021-06-30:
| 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 |
738 |
6622 |
128 |
467 |
112 |
12 |
0 |
0 |
| OW |
0 |
330 |
64 |
767 |
87 |
4 |
0 |
0 |
| VODI |
0 |
114 |
28 |
1055 |
1079 |
25 |
7 |
0 |
| ODI |
0 |
23 |
8 |
263 |
2488 |
215 |
46 |
0 |
| CDI |
0 |
27 |
6 |
234 |
1371 |
5630 |
610 |
0 |
| VCDI |
0 |
63 |
0 |
61 |
1256 |
9131 |
7801 |
4994 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
738 |
6281 |
122 |
807 |
483 |
14 |
0 |
0 |
| OW |
0 |
374 |
37 |
430 |
469 |
8 |
0 |
0 |
| VODI |
0 |
259 |
51 |
599 |
798 |
44 |
4 |
0 |
| ODI |
0 |
116 |
4 |
540 |
1555 |
190 |
43 |
0 |
| CDI |
0 |
86 |
20 |
391 |
1418 |
5292 |
1229 |
0 |
| VCDI |
0 |
63 |
0 |
80 |
1670 |
9469 |
7188 |
4994 |
|
Date: 2021-07-02:
| 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 |
1715 |
6084 |
92 |
534 |
82 |
26 |
0 |
0 |
| OW |
3 |
613 |
87 |
747 |
135 |
22 |
1 |
0 |
| VODI |
0 |
211 |
38 |
1337 |
732 |
148 |
6 |
0 |
| ODI |
0 |
21 |
6 |
431 |
1476 |
352 |
41 |
0 |
| CDI |
0 |
22 |
6 |
201 |
595 |
5544 |
2162 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
481 |
9734 |
8441 |
3740 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1715 |
5723 |
117 |
1122 |
265 |
38 |
0 |
0 |
| OW |
3 |
483 |
31 |
647 |
166 |
34 |
0 |
0 |
| VODI |
0 |
454 |
44 |
548 |
598 |
99 |
1 |
0 |
| ODI |
0 |
204 |
22 |
603 |
1124 |
304 |
36 |
0 |
| CDI |
0 |
87 |
15 |
293 |
818 |
5304 |
2464 |
8 |
| VCDI |
0 |
0 |
0 |
37 |
530 |
10047 |
8150 |
3732 |
|
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