Validation of sea ice concentration - American sector
Bulletin date: 2021-09-30
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2021-09-24:
| 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 |
12021 |
8200 |
136 |
572 |
48 |
0 |
0 |
0 |
| OW |
0 |
297 |
44 |
1296 |
466 |
0 |
0 |
0 |
| VODI |
0 |
143 |
17 |
732 |
2051 |
19 |
0 |
0 |
| ODI |
0 |
68 |
3 |
94 |
1079 |
610 |
0 |
0 |
| CDI |
0 |
1 |
2 |
42 |
316 |
1758 |
234 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
105 |
2702 |
10782 |
2024 |
|
...date precedes bulletin
|
Date: 2021-09-26:
| 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 |
12286 |
7865 |
125 |
389 |
68 |
0 |
0 |
0 |
| OW |
0 |
408 |
56 |
734 |
681 |
10 |
0 |
0 |
| VODI |
0 |
157 |
26 |
428 |
2263 |
325 |
0 |
0 |
| ODI |
0 |
54 |
2 |
123 |
1035 |
649 |
0 |
0 |
| CDI |
0 |
19 |
7 |
66 |
317 |
1351 |
379 |
24 |
| VCDI |
0 |
0 |
3 |
23 |
191 |
1874 |
7873 |
6055 |
|
...date precedes bulletin
|
Date: 2021-09-28:
| 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 |
12662 |
7473 |
100 |
399 |
0 |
0 |
0 |
0 |
| OW |
0 |
269 |
53 |
588 |
48 |
0 |
0 |
0 |
| VODI |
0 |
77 |
18 |
594 |
830 |
1 |
0 |
0 |
| ODI |
0 |
15 |
4 |
39 |
3187 |
526 |
2 |
0 |
| CDI |
0 |
12 |
6 |
69 |
361 |
2304 |
420 |
3 |
| VCDI |
0 |
0 |
0 |
0 |
131 |
1461 |
7766 |
6448 |
|
...date precedes bulletin
|
Date: 2021-09-30:
| 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 |
12451 |
7316 |
96 |
396 |
22 |
0 |
0 |
0 |
| OW |
0 |
323 |
52 |
582 |
129 |
0 |
0 |
0 |
| VODI |
0 |
60 |
16 |
429 |
830 |
32 |
0 |
0 |
| ODI |
0 |
26 |
2 |
44 |
1451 |
1704 |
0 |
0 |
| CDI |
0 |
25 |
6 |
45 |
248 |
2313 |
633 |
13 |
| VCDI |
0 |
9 |
4 |
49 |
237 |
2222 |
7067 |
7034 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12451 |
7321 |
98 |
495 |
29 |
0 |
0 |
0 |
| OW |
0 |
306 |
44 |
464 |
131 |
0 |
0 |
0 |
| VODI |
0 |
80 |
23 |
436 |
633 |
27 |
0 |
0 |
| ODI |
0 |
23 |
2 |
58 |
1581 |
1624 |
5 |
0 |
| CDI |
0 |
23 |
5 |
43 |
316 |
2299 |
627 |
5 |
| VCDI |
0 |
6 |
4 |
49 |
227 |
2321 |
7068 |
7042 |
|
Date: 2021-10-02:
| 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 |
11377 |
7752 |
104 |
420 |
63 |
1 |
0 |
0 |
| OW |
0 |
412 |
50 |
363 |
303 |
45 |
0 |
0 |
| VODI |
0 |
83 |
22 |
310 |
589 |
209 |
0 |
0 |
| ODI |
0 |
28 |
6 |
65 |
654 |
1598 |
24 |
0 |
| CDI |
0 |
5 |
4 |
52 |
350 |
2399 |
1146 |
1 |
| VCDI |
0 |
0 |
1 |
47 |
277 |
1481 |
9049 |
6576 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11377 |
7784 |
115 |
518 |
106 |
10 |
0 |
0 |
| OW |
0 |
376 |
38 |
309 |
254 |
24 |
0 |
0 |
| VODI |
0 |
100 |
25 |
257 |
549 |
154 |
0 |
0 |
| ODI |
0 |
18 |
4 |
74 |
637 |
1540 |
34 |
0 |
| CDI |
0 |
2 |
4 |
53 |
419 |
2396 |
1219 |
1 |
| VCDI |
0 |
0 |
1 |
46 |
271 |
1609 |
8966 |
6576 |
|
Date: 2021-10-04:
| 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 |
11847 |
7122 |
99 |
276 |
30 |
0 |
0 |
0 |
| OW |
0 |
315 |
75 |
412 |
105 |
3 |
0 |
0 |
| VODI |
0 |
51 |
24 |
408 |
370 |
40 |
34 |
0 |
| ODI |
0 |
0 |
0 |
66 |
645 |
292 |
67 |
0 |
| CDI |
0 |
0 |
0 |
10 |
274 |
1979 |
548 |
0 |
| VCDI |
0 |
0 |
0 |
11 |
127 |
990 |
9482 |
10164 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11847 |
7022 |
128 |
516 |
213 |
24 |
0 |
0 |
| OW |
0 |
349 |
36 |
259 |
167 |
111 |
0 |
0 |
| VODI |
0 |
107 |
28 |
271 |
397 |
352 |
22 |
0 |
| ODI |
0 |
10 |
5 |
66 |
291 |
678 |
298 |
0 |
| CDI |
0 |
0 |
1 |
58 |
193 |
1242 |
2175 |
0 |
| VCDI |
0 |
0 |
0 |
13 |
290 |
897 |
7636 |
10164 |
|
Date: 2021-10-06:
| 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 |
13119 |
5931 |
66 |
152 |
5 |
0 |
0 |
0 |
| OW |
0 |
569 |
61 |
308 |
86 |
0 |
0 |
0 |
| VODI |
0 |
117 |
35 |
417 |
328 |
27 |
0 |
0 |
| ODI |
0 |
2 |
6 |
85 |
676 |
196 |
13 |
0 |
| CDI |
0 |
0 |
0 |
6 |
317 |
1454 |
384 |
1 |
| VCDI |
0 |
0 |
0 |
12 |
160 |
1468 |
7253 |
12612 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13119 |
5997 |
95 |
355 |
159 |
17 |
0 |
0 |
| OW |
0 |
460 |
34 |
150 |
169 |
89 |
0 |
0 |
| VODI |
0 |
162 |
37 |
331 |
346 |
309 |
0 |
0 |
| ODI |
0 |
0 |
2 |
110 |
437 |
414 |
54 |
0 |
| CDI |
0 |
0 |
0 |
22 |
217 |
1180 |
1385 |
22 |
| VCDI |
0 |
0 |
0 |
12 |
244 |
1136 |
6211 |
12591 |
|
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 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12183 |
6284 |
124 |
600 |
273 |
63 |
0 |
0 |
| OW |
0 |
412 |
35 |
237 |
235 |
158 |
10 |
0 |
| VODI |
0 |
138 |
24 |
205 |
334 |
435 |
20 |
0 |
| ODI |
0 |
11 |
4 |
98 |
251 |
517 |
83 |
0 |
| CDI |
0 |
5 |
2 |
48 |
106 |
807 |
1342 |
7 |
| VCDI |
0 |
0 |
0 |
42 |
176 |
1468 |
6267 |
12862 |
|
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