Validation of sea ice concentration - American sector
Bulletin date: 2021-10-14
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2021-10-08:
| 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 |
12183 |
6300 |
89 |
265 |
11 |
0 |
0 |
0 |
| OW |
0 |
433 |
73 |
515 |
149 |
1 |
0 |
0 |
| VODI |
0 |
111 |
21 |
328 |
488 |
101 |
0 |
0 |
| ODI |
0 |
6 |
6 |
87 |
407 |
418 |
26 |
0 |
| CDI |
0 |
0 |
0 |
22 |
250 |
1264 |
483 |
11 |
| VCDI |
0 |
0 |
0 |
13 |
70 |
1664 |
7213 |
12858 |
|
...date precedes bulletin
|
Date: 2021-10-10:
| 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 |
11995 |
5900 |
78 |
300 |
21 |
0 |
0 |
0 |
| OW |
0 |
379 |
49 |
527 |
288 |
0 |
0 |
0 |
| VODI |
0 |
78 |
19 |
343 |
519 |
143 |
0 |
0 |
| ODI |
0 |
6 |
0 |
81 |
384 |
417 |
59 |
0 |
| CDI |
0 |
0 |
0 |
8 |
263 |
991 |
402 |
0 |
| VCDI |
0 |
0 |
0 |
10 |
144 |
1634 |
7573 |
13255 |
|
...date precedes bulletin
|
Date: 2021-10-12:
| 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 |
11863 |
6080 |
67 |
150 |
1 |
0 |
0 |
0 |
| OW |
0 |
313 |
39 |
398 |
21 |
0 |
0 |
0 |
| VODI |
0 |
69 |
21 |
475 |
282 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
132 |
728 |
61 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
450 |
1261 |
26 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
28 |
1589 |
6837 |
14975 |
|
...date precedes bulletin
|
Date: 2021-10-14:
| 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 |
11853 |
5836 |
56 |
129 |
15 |
0 |
0 |
0 |
| OW |
0 |
537 |
37 |
189 |
38 |
2 |
0 |
0 |
| VODI |
0 |
220 |
38 |
365 |
198 |
18 |
0 |
0 |
| ODI |
0 |
16 |
6 |
327 |
296 |
99 |
0 |
0 |
| CDI |
0 |
0 |
0 |
107 |
568 |
466 |
19 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
179 |
2068 |
6823 |
15361 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11853 |
5888 |
60 |
160 |
27 |
0 |
0 |
0 |
| OW |
0 |
504 |
32 |
143 |
34 |
6 |
0 |
0 |
| VODI |
0 |
198 |
37 |
396 |
222 |
17 |
0 |
0 |
| ODI |
0 |
19 |
8 |
277 |
284 |
75 |
0 |
0 |
| CDI |
0 |
0 |
0 |
134 |
436 |
466 |
4 |
0 |
| VCDI |
0 |
0 |
0 |
7 |
291 |
2089 |
6838 |
15361 |
|
Date: 2021-10-16:
| 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 |
10903 |
6126 |
69 |
139 |
42 |
3 |
0 |
0 |
| OW |
4 |
547 |
41 |
316 |
56 |
17 |
0 |
0 |
| VODI |
0 |
226 |
35 |
307 |
250 |
39 |
0 |
0 |
| ODI |
0 |
47 |
17 |
154 |
336 |
105 |
2 |
0 |
| CDI |
0 |
18 |
3 |
69 |
414 |
290 |
49 |
0 |
| VCDI |
0 |
2 |
2 |
36 |
501 |
2107 |
6167 |
16427 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10906 |
6272 |
76 |
233 |
59 |
2 |
0 |
0 |
| OW |
1 |
427 |
41 |
238 |
52 |
15 |
0 |
0 |
| VODI |
0 |
214 |
33 |
327 |
238 |
36 |
0 |
0 |
| ODI |
0 |
37 |
11 |
117 |
370 |
127 |
1 |
0 |
| CDI |
0 |
16 |
4 |
61 |
321 |
315 |
33 |
0 |
| VCDI |
0 |
0 |
2 |
45 |
559 |
2066 |
6184 |
16427 |
|
Date: 2021-10-18:
| 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 |
10637 |
6035 |
77 |
226 |
6 |
0 |
0 |
0 |
| OW |
10 |
297 |
74 |
333 |
84 |
0 |
0 |
0 |
| VODI |
0 |
72 |
19 |
424 |
324 |
10 |
0 |
0 |
| ODI |
0 |
8 |
1 |
56 |
554 |
107 |
0 |
0 |
| CDI |
0 |
0 |
0 |
14 |
304 |
938 |
33 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
140 |
2508 |
7716 |
14859 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10618 |
5936 |
98 |
349 |
92 |
1 |
0 |
0 |
| OW |
27 |
292 |
31 |
259 |
168 |
30 |
0 |
0 |
| VODI |
2 |
149 |
36 |
272 |
306 |
97 |
0 |
0 |
| ODI |
0 |
34 |
5 |
111 |
326 |
188 |
7 |
0 |
| CDI |
0 |
1 |
1 |
54 |
233 |
599 |
42 |
0 |
| VCDI |
0 |
0 |
0 |
8 |
287 |
2648 |
7700 |
14859 |
|
Date: 2021-10-20:
| 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 |
11323 |
5359 |
43 |
94 |
0 |
0 |
0 |
0 |
| OW |
6 |
531 |
49 |
229 |
31 |
0 |
0 |
0 |
| VODI |
0 |
172 |
37 |
353 |
162 |
7 |
0 |
0 |
| ODI |
0 |
10 |
21 |
214 |
340 |
35 |
0 |
0 |
| CDI |
0 |
0 |
0 |
59 |
623 |
216 |
2 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
163 |
2965 |
7737 |
15085 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11315 |
5111 |
57 |
195 |
43 |
0 |
0 |
0 |
| OW |
14 |
564 |
33 |
189 |
94 |
14 |
0 |
0 |
| VODI |
0 |
296 |
21 |
243 |
232 |
51 |
0 |
0 |
| ODI |
0 |
94 |
26 |
200 |
253 |
66 |
0 |
0 |
| CDI |
0 |
7 |
13 |
94 |
385 |
272 |
47 |
1 |
| VCDI |
0 |
0 |
0 |
28 |
312 |
2820 |
7692 |
15084 |
|
Date: 2021-10-22:
| 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 |
10836 |
5625 |
50 |
96 |
0 |
0 |
0 |
0 |
| OW |
13 |
730 |
36 |
191 |
36 |
0 |
0 |
0 |
| VODI |
0 |
287 |
39 |
344 |
146 |
3 |
0 |
0 |
| ODI |
0 |
69 |
26 |
238 |
250 |
22 |
0 |
0 |
| CDI |
0 |
14 |
9 |
172 |
446 |
146 |
0 |
0 |
| VCDI |
0 |
0 |
2 |
52 |
666 |
3871 |
6239 |
15212 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10843 |
5600 |
69 |
206 |
37 |
0 |
0 |
0 |
| OW |
6 |
589 |
30 |
248 |
105 |
2 |
0 |
0 |
| VODI |
0 |
333 |
21 |
237 |
208 |
30 |
0 |
0 |
| ODI |
0 |
125 |
22 |
203 |
248 |
49 |
0 |
0 |
| CDI |
0 |
43 |
12 |
78 |
342 |
202 |
0 |
0 |
| VCDI |
0 |
35 |
8 |
121 |
604 |
3759 |
6239 |
15212 |
|
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