Validation of sea ice concentration - American sector
Bulletin date: 2023-11-09
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-11-03:
| 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 |
10710 |
4348 |
269 |
285 |
40 |
0 |
0 |
0 |
| OW |
0 |
602 |
156 |
247 |
393 |
47 |
0 |
0 |
| VODI |
0 |
132 |
90 |
280 |
622 |
314 |
13 |
0 |
| ODI |
0 |
28 |
33 |
162 |
540 |
282 |
16 |
0 |
| CDI |
0 |
2 |
5 |
86 |
425 |
545 |
58 |
0 |
| VCDI |
0 |
0 |
1 |
65 |
370 |
2136 |
8372 |
14192 |
|
...date precedes bulletin
|
Date: 2023-11-05:
| 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 |
10197 |
3771 |
182 |
276 |
139 |
1 |
0 |
0 |
| OW |
0 |
632 |
196 |
363 |
198 |
11 |
0 |
0 |
| VODI |
0 |
257 |
136 |
420 |
466 |
286 |
0 |
0 |
| ODI |
0 |
46 |
34 |
141 |
380 |
492 |
0 |
0 |
| CDI |
0 |
27 |
13 |
56 |
357 |
923 |
30 |
0 |
| VCDI |
0 |
9 |
16 |
44 |
204 |
2350 |
8638 |
14575 |
|
...date precedes bulletin
|
Date: 2023-11-07:
| 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 |
10237 |
3292 |
143 |
108 |
11 |
0 |
0 |
0 |
| OW |
13 |
640 |
148 |
312 |
51 |
0 |
0 |
0 |
| VODI |
0 |
174 |
183 |
606 |
292 |
12 |
0 |
0 |
| ODI |
0 |
29 |
37 |
276 |
591 |
250 |
0 |
0 |
| CDI |
0 |
6 |
3 |
73 |
421 |
965 |
22 |
0 |
| VCDI |
0 |
1 |
1 |
44 |
203 |
2643 |
8928 |
15151 |
|
...date precedes bulletin
|
Date: 2023-11-09:
| 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 |
8970 |
3140 |
532 |
164 |
31 |
0 |
0 |
0 |
| OW |
27 |
437 |
192 |
387 |
233 |
10 |
0 |
0 |
| VODI |
0 |
175 |
110 |
399 |
473 |
23 |
0 |
0 |
| ODI |
0 |
71 |
44 |
206 |
626 |
171 |
1 |
0 |
| CDI |
0 |
16 |
8 |
36 |
363 |
751 |
29 |
0 |
| VCDI |
0 |
10 |
3 |
48 |
182 |
2511 |
6555 |
18932 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8968 |
3132 |
553 |
192 |
72 |
7 |
0 |
0 |
| OW |
29 |
415 |
175 |
387 |
232 |
3 |
0 |
0 |
| VODI |
0 |
195 |
102 |
373 |
483 |
31 |
0 |
0 |
| ODI |
0 |
66 |
48 |
208 |
582 |
199 |
0 |
0 |
| CDI |
0 |
26 |
8 |
34 |
364 |
710 |
18 |
0 |
| VCDI |
0 |
15 |
3 |
46 |
175 |
2516 |
6567 |
18932 |
|
Date: 2023-11-11:
| 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 |
8999 |
2855 |
38 |
31 |
4 |
0 |
0 |
0 |
| OW |
65 |
757 |
208 |
310 |
71 |
0 |
0 |
0 |
| VODI |
2 |
296 |
167 |
387 |
406 |
20 |
0 |
0 |
| ODI |
0 |
91 |
83 |
256 |
487 |
169 |
0 |
0 |
| CDI |
0 |
23 |
29 |
135 |
433 |
423 |
13 |
0 |
| VCDI |
0 |
0 |
4 |
62 |
370 |
2650 |
7383 |
18639 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9005 |
2806 |
50 |
52 |
9 |
0 |
0 |
0 |
| OW |
60 |
745 |
191 |
317 |
131 |
3 |
0 |
0 |
| VODI |
1 |
361 |
175 |
350 |
389 |
28 |
0 |
0 |
| ODI |
0 |
76 |
78 |
271 |
472 |
229 |
0 |
0 |
| CDI |
0 |
26 |
19 |
110 |
398 |
381 |
14 |
0 |
| VCDI |
0 |
8 |
16 |
81 |
372 |
2621 |
7382 |
18639 |
|
Date: 2023-11-13:
| 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 |
9419 |
2392 |
16 |
3 |
2 |
0 |
0 |
0 |
| OW |
54 |
746 |
69 |
99 |
11 |
0 |
0 |
0 |
| VODI |
6 |
275 |
143 |
457 |
310 |
9 |
0 |
0 |
| ODI |
0 |
37 |
27 |
423 |
799 |
165 |
0 |
0 |
| CDI |
0 |
14 |
24 |
103 |
434 |
969 |
41 |
0 |
| VCDI |
0 |
1 |
4 |
54 |
311 |
4361 |
9242 |
14846 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9391 |
2197 |
20 |
19 |
1 |
0 |
0 |
0 |
| OW |
82 |
598 |
76 |
230 |
173 |
0 |
0 |
0 |
| VODI |
6 |
424 |
84 |
352 |
445 |
43 |
0 |
0 |
| ODI |
0 |
157 |
41 |
239 |
459 |
308 |
0 |
0 |
| CDI |
0 |
64 |
37 |
166 |
364 |
517 |
23 |
0 |
| VCDI |
0 |
25 |
25 |
133 |
425 |
4636 |
9260 |
14846 |
|
Date: 2023-11-15:
| 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 |
8644 |
2855 |
77 |
160 |
49 |
0 |
0 |
0 |
| OW |
35 |
275 |
118 |
255 |
131 |
8 |
0 |
0 |
| VODI |
0 |
81 |
56 |
263 |
498 |
60 |
0 |
0 |
| ODI |
0 |
17 |
17 |
117 |
747 |
260 |
2 |
0 |
| CDI |
0 |
3 |
6 |
51 |
565 |
1130 |
70 |
1 |
| VCDI |
0 |
4 |
8 |
70 |
455 |
3744 |
9996 |
15038 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8626 |
2512 |
50 |
108 |
40 |
0 |
0 |
0 |
| OW |
51 |
428 |
67 |
185 |
145 |
12 |
0 |
0 |
| VODI |
2 |
215 |
103 |
260 |
571 |
138 |
3 |
0 |
| ODI |
0 |
54 |
39 |
194 |
645 |
360 |
3 |
0 |
| CDI |
0 |
17 |
10 |
76 |
585 |
861 |
31 |
1 |
| VCDI |
0 |
9 |
13 |
93 |
459 |
3831 |
10031 |
15038 |
|
Date: 2023-11-17:
| 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 |
7809 |
3072 |
52 |
68 |
39 |
1 |
0 |
0 |
| OW |
50 |
251 |
69 |
226 |
290 |
38 |
0 |
0 |
| VODI |
1 |
62 |
36 |
183 |
511 |
101 |
20 |
0 |
| ODI |
0 |
24 |
9 |
49 |
574 |
292 |
7 |
0 |
| CDI |
0 |
18 |
14 |
43 |
567 |
1233 |
137 |
2 |
| VCDI |
0 |
36 |
17 |
86 |
386 |
3336 |
9426 |
16731 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7783 |
2799 |
47 |
96 |
71 |
12 |
3 |
0 |
| OW |
75 |
392 |
49 |
145 |
126 |
18 |
8 |
0 |
| VODI |
2 |
134 |
48 |
203 |
604 |
116 |
12 |
0 |
| ODI |
0 |
55 |
11 |
58 |
650 |
482 |
56 |
0 |
| CDI |
0 |
37 |
19 |
43 |
486 |
1119 |
77 |
3 |
| VCDI |
0 |
46 |
23 |
110 |
430 |
3254 |
9434 |
16730 |
|
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