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 |
9713 |
5550 |
314 |
392 |
542 |
133 |
2 |
0 |
| OW |
26 |
358 |
142 |
308 |
394 |
312 |
12 |
0 |
| VODI |
0 |
136 |
69 |
183 |
433 |
307 |
13 |
0 |
| ODI |
0 |
38 |
25 |
133 |
386 |
375 |
55 |
0 |
| CDI |
0 |
1 |
3 |
88 |
345 |
507 |
131 |
0 |
| VCDI |
0 |
0 |
1 |
21 |
290 |
1690 |
8246 |
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 |
9618 |
4626 |
285 |
387 |
236 |
94 |
0 |
0 |
| OW |
37 |
452 |
160 |
458 |
341 |
350 |
12 |
0 |
| VODI |
1 |
146 |
81 |
236 |
399 |
560 |
38 |
0 |
| ODI |
0 |
40 |
30 |
124 |
280 |
412 |
43 |
0 |
| CDI |
0 |
16 |
16 |
62 |
292 |
754 |
108 |
0 |
| VCDI |
0 |
3 |
5 |
33 |
196 |
1893 |
8467 |
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 |
10091 |
3547 |
199 |
428 |
112 |
61 |
0 |
0 |
| OW |
77 |
481 |
173 |
379 |
180 |
58 |
0 |
0 |
| VODI |
8 |
172 |
105 |
376 |
345 |
127 |
0 |
0 |
| ODI |
0 |
15 |
35 |
166 |
437 |
169 |
5 |
0 |
| CDI |
0 |
1 |
3 |
53 |
308 |
882 |
44 |
0 |
| VCDI |
0 |
0 |
0 |
17 |
187 |
2573 |
8901 |
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 |
8572 |
3343 |
509 |
258 |
288 |
71 |
0 |
0 |
| OW |
67 |
532 |
223 |
389 |
272 |
72 |
0 |
0 |
| VODI |
14 |
269 |
105 |
355 |
554 |
209 |
0 |
0 |
| ODI |
2 |
46 |
44 |
161 |
385 |
249 |
6 |
0 |
| CDI |
0 |
1 |
7 |
62 |
277 |
412 |
26 |
0 |
| VCDI |
0 |
0 |
1 |
15 |
132 |
2453 |
6553 |
18932 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8556 |
3374 |
501 |
311 |
401 |
117 |
0 |
0 |
| OW |
75 |
462 |
163 |
315 |
196 |
54 |
0 |
0 |
| VODI |
22 |
296 |
162 |
314 |
482 |
201 |
0 |
0 |
| ODI |
2 |
54 |
48 |
190 |
351 |
206 |
6 |
0 |
| CDI |
0 |
5 |
14 |
90 |
282 |
282 |
31 |
0 |
| VCDI |
0 |
0 |
1 |
20 |
196 |
2606 |
6548 |
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 |
8755 |
3022 |
99 |
169 |
46 |
24 |
0 |
0 |
| OW |
129 |
633 |
212 |
323 |
291 |
78 |
4 |
0 |
| VODI |
40 |
367 |
114 |
357 |
545 |
141 |
7 |
0 |
| ODI |
7 |
126 |
86 |
199 |
367 |
326 |
14 |
0 |
| CDI |
0 |
9 |
15 |
112 |
254 |
357 |
32 |
0 |
| VCDI |
0 |
0 |
3 |
21 |
268 |
2336 |
7339 |
18639 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8744 |
3080 |
154 |
272 |
227 |
76 |
1 |
0 |
| OW |
116 |
550 |
140 |
197 |
185 |
42 |
4 |
0 |
| VODI |
62 |
386 |
131 |
331 |
502 |
137 |
7 |
0 |
| ODI |
9 |
116 |
85 |
261 |
307 |
304 |
12 |
0 |
| CDI |
0 |
24 |
14 |
102 |
292 |
300 |
38 |
0 |
| VCDI |
0 |
1 |
5 |
18 |
258 |
2403 |
7334 |
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 |
9307 |
3021 |
78 |
82 |
13 |
0 |
0 |
0 |
| OW |
80 |
343 |
89 |
213 |
90 |
0 |
0 |
0 |
| VODI |
15 |
139 |
84 |
440 |
486 |
48 |
2 |
0 |
| ODI |
5 |
18 |
17 |
340 |
789 |
372 |
4 |
0 |
| CDI |
0 |
15 |
12 |
51 |
288 |
1000 |
46 |
0 |
| VCDI |
0 |
1 |
3 |
13 |
201 |
4084 |
9231 |
14846 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9102 |
2142 |
41 |
114 |
118 |
2 |
0 |
0 |
| OW |
217 |
677 |
70 |
223 |
239 |
108 |
2 |
0 |
| VODI |
66 |
369 |
73 |
315 |
422 |
226 |
4 |
0 |
| ODI |
20 |
204 |
45 |
202 |
419 |
406 |
10 |
0 |
| CDI |
2 |
96 |
36 |
226 |
298 |
420 |
17 |
0 |
| VCDI |
0 |
49 |
18 |
59 |
371 |
4342 |
9250 |
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 |
8497 |
3105 |
127 |
163 |
51 |
3 |
0 |
0 |
| OW |
74 |
149 |
83 |
248 |
210 |
7 |
0 |
0 |
| VODI |
11 |
62 |
50 |
315 |
510 |
80 |
2 |
0 |
| ODI |
2 |
10 |
14 |
116 |
848 |
436 |
6 |
0 |
| CDI |
0 |
3 |
6 |
56 |
565 |
851 |
32 |
6 |
| VCDI |
0 |
1 |
2 |
18 |
261 |
3825 |
10028 |
15033 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8330 |
2555 |
42 |
89 |
51 |
5 |
0 |
0 |
| OW |
205 |
456 |
77 |
169 |
255 |
53 |
1 |
0 |
| VODI |
43 |
233 |
111 |
293 |
587 |
229 |
3 |
0 |
| ODI |
5 |
63 |
33 |
161 |
635 |
557 |
3 |
0 |
| CDI |
1 |
19 |
14 |
148 |
600 |
632 |
27 |
3 |
| VCDI |
0 |
4 |
5 |
56 |
317 |
3726 |
10034 |
15036 |
|
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 |
7694 |
3237 |
114 |
129 |
59 |
2 |
0 |
0 |
| OW |
66 |
176 |
30 |
172 |
314 |
48 |
0 |
0 |
| VODI |
16 |
78 |
28 |
215 |
630 |
150 |
11 |
0 |
| ODI |
4 |
21 |
14 |
84 |
540 |
308 |
35 |
0 |
| CDI |
0 |
16 |
8 |
29 |
484 |
1066 |
129 |
3 |
| VCDI |
0 |
15 |
3 |
26 |
340 |
3427 |
9415 |
16730 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7647 |
2871 |
61 |
55 |
26 |
11 |
0 |
0 |
| OW |
82 |
367 |
60 |
195 |
246 |
41 |
1 |
0 |
| VODI |
30 |
205 |
34 |
229 |
636 |
212 |
39 |
0 |
| ODI |
12 |
50 |
19 |
77 |
674 |
531 |
68 |
0 |
| CDI |
6 |
26 |
13 |
62 |
491 |
888 |
67 |
45 |
| VCDI |
3 |
24 |
10 |
37 |
294 |
3318 |
9415 |
16688 |
|
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