Validation of sea ice concentration - American sector
Bulletin date: 2023-11-02
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-10-27:
| 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 |
13107 |
5641 |
168 |
263 |
2 |
0 |
0 |
0 |
| OW |
0 |
561 |
180 |
471 |
213 |
7 |
0 |
0 |
| VODI |
0 |
200 |
124 |
326 |
470 |
170 |
0 |
0 |
| ODI |
0 |
36 |
41 |
143 |
311 |
488 |
0 |
0 |
| CDI |
0 |
0 |
6 |
95 |
288 |
1021 |
63 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
175 |
5186 |
9079 |
7027 |
|
...date precedes bulletin
|
Date: 2023-10-29:
| 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 |
12212 |
5533 |
183 |
307 |
67 |
0 |
0 |
0 |
| OW |
5 |
469 |
188 |
603 |
219 |
16 |
0 |
0 |
| VODI |
0 |
126 |
107 |
419 |
509 |
179 |
0 |
0 |
| ODI |
0 |
20 |
33 |
175 |
388 |
444 |
1 |
0 |
| CDI |
0 |
0 |
1 |
58 |
352 |
996 |
213 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
137 |
4140 |
9213 |
8550 |
|
...date precedes bulletin
|
Date: 2023-10-31:
| 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 |
10991 |
5066 |
347 |
618 |
91 |
0 |
0 |
0 |
| OW |
0 |
414 |
165 |
427 |
256 |
23 |
0 |
0 |
| VODI |
0 |
73 |
103 |
367 |
591 |
88 |
0 |
0 |
| ODI |
0 |
0 |
6 |
143 |
639 |
344 |
0 |
0 |
| CDI |
0 |
0 |
0 |
18 |
816 |
931 |
71 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
203 |
2737 |
10505 |
9833 |
|
...date precedes bulletin
|
Date: 2023-11-02:
| 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 |
11099 |
4387 |
210 |
283 |
100 |
0 |
0 |
0 |
| OW |
8 |
552 |
162 |
279 |
519 |
52 |
4 |
0 |
| VODI |
0 |
79 |
82 |
242 |
657 |
212 |
9 |
0 |
| ODI |
0 |
20 |
30 |
133 |
458 |
354 |
23 |
0 |
| CDI |
0 |
0 |
2 |
76 |
369 |
711 |
117 |
0 |
| VCDI |
0 |
0 |
0 |
17 |
197 |
1868 |
8085 |
14470 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11095 |
4431 |
227 |
303 |
223 |
6 |
0 |
0 |
| OW |
12 |
489 |
157 |
252 |
410 |
44 |
2 |
0 |
| VODI |
0 |
97 |
70 |
248 |
684 |
201 |
6 |
0 |
| ODI |
0 |
17 |
31 |
128 |
437 |
362 |
14 |
0 |
| CDI |
0 |
4 |
1 |
83 |
351 |
707 |
163 |
0 |
| VCDI |
0 |
0 |
0 |
16 |
195 |
1877 |
8053 |
14470 |
|
Date: 2023-11-04:
| 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 |
10273 |
4084 |
251 |
458 |
39 |
0 |
0 |
0 |
| OW |
0 |
551 |
147 |
345 |
296 |
71 |
0 |
0 |
| VODI |
0 |
231 |
92 |
297 |
441 |
464 |
0 |
0 |
| ODI |
0 |
31 |
39 |
114 |
440 |
515 |
38 |
0 |
| CDI |
0 |
11 |
21 |
64 |
363 |
707 |
44 |
0 |
| VCDI |
0 |
0 |
1 |
55 |
314 |
2150 |
8424 |
14495 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10273 |
4178 |
272 |
530 |
85 |
14 |
0 |
0 |
| OW |
0 |
406 |
124 |
285 |
258 |
119 |
0 |
0 |
| VODI |
0 |
278 |
97 |
285 |
457 |
438 |
0 |
0 |
| ODI |
0 |
34 |
32 |
112 |
457 |
529 |
19 |
0 |
| CDI |
0 |
12 |
25 |
65 |
301 |
686 |
47 |
0 |
| VCDI |
0 |
0 |
1 |
56 |
335 |
2121 |
8440 |
14495 |
|
Date: 2023-11-06:
| 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 |
10194 |
3502 |
134 |
142 |
11 |
0 |
0 |
0 |
| OW |
1 |
717 |
169 |
297 |
61 |
0 |
0 |
0 |
| VODI |
0 |
220 |
241 |
582 |
296 |
14 |
0 |
0 |
| ODI |
0 |
9 |
23 |
242 |
813 |
295 |
2 |
0 |
| CDI |
0 |
3 |
12 |
41 |
305 |
1410 |
26 |
0 |
| VCDI |
0 |
0 |
6 |
36 |
127 |
2817 |
9605 |
13513 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10192 |
3539 |
203 |
319 |
98 |
0 |
0 |
0 |
| OW |
3 |
499 |
154 |
299 |
224 |
29 |
0 |
0 |
| VODI |
0 |
341 |
157 |
426 |
451 |
181 |
0 |
0 |
| ODI |
0 |
57 |
35 |
175 |
414 |
464 |
0 |
0 |
| CDI |
0 |
10 |
19 |
71 |
267 |
853 |
37 |
0 |
| VCDI |
0 |
5 |
17 |
50 |
159 |
3009 |
9596 |
13513 |
|
Date: 2023-11-08:
| 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 |
10198 |
2768 |
188 |
219 |
28 |
1 |
0 |
0 |
| OW |
18 |
510 |
198 |
369 |
133 |
1 |
0 |
0 |
| VODI |
0 |
177 |
112 |
452 |
388 |
28 |
0 |
0 |
| ODI |
0 |
48 |
27 |
245 |
549 |
269 |
1 |
0 |
| CDI |
0 |
13 |
12 |
45 |
253 |
912 |
32 |
0 |
| VCDI |
0 |
2 |
2 |
37 |
225 |
2392 |
7582 |
17432 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10192 |
2543 |
245 |
369 |
52 |
0 |
0 |
0 |
| OW |
24 |
511 |
124 |
290 |
349 |
38 |
0 |
0 |
| VODI |
0 |
251 |
97 |
346 |
355 |
238 |
2 |
0 |
| ODI |
0 |
170 |
55 |
239 |
376 |
369 |
22 |
0 |
| CDI |
0 |
36 |
13 |
61 |
238 |
711 |
62 |
0 |
| VCDI |
0 |
7 |
5 |
62 |
206 |
2247 |
7529 |
17432 |
|
Date: 2023-11-10:
| 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 |
9869 |
2366 |
89 |
49 |
0 |
0 |
0 |
0 |
| OW |
74 |
625 |
242 |
322 |
81 |
2 |
0 |
0 |
| VODI |
1 |
253 |
153 |
434 |
333 |
48 |
0 |
0 |
| ODI |
0 |
79 |
84 |
307 |
404 |
185 |
0 |
0 |
| CDI |
0 |
37 |
16 |
100 |
346 |
587 |
13 |
0 |
| VCDI |
0 |
4 |
14 |
34 |
327 |
2775 |
6476 |
19137 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9911 |
2162 |
179 |
179 |
32 |
5 |
0 |
0 |
| OW |
33 |
610 |
165 |
276 |
157 |
9 |
0 |
0 |
| VODI |
0 |
342 |
123 |
377 |
427 |
84 |
0 |
0 |
| ODI |
0 |
184 |
71 |
257 |
443 |
230 |
11 |
0 |
| CDI |
0 |
62 |
48 |
124 |
226 |
652 |
77 |
0 |
| VCDI |
0 |
4 |
12 |
33 |
206 |
2617 |
6401 |
19137 |
|
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