Validation of sea ice concentration - American sector
Bulletin date: 2023-06-08
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-06-02:
| 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 |
0 |
1554 |
250 |
449 |
192 |
51 |
5 |
0 |
| OW |
0 |
212 |
66 |
323 |
434 |
216 |
46 |
0 |
| VODI |
0 |
131 |
66 |
147 |
313 |
325 |
206 |
0 |
| ODI |
0 |
65 |
40 |
145 |
209 |
455 |
608 |
0 |
| CDI |
0 |
77 |
22 |
179 |
465 |
1475 |
3184 |
0 |
| VCDI |
0 |
29 |
29 |
181 |
275 |
3025 |
24939 |
5478 |
|
...date precedes bulletin
|
Date: 2023-06-04:
| 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 |
0 |
1671 |
313 |
566 |
415 |
147 |
3 |
0 |
| OW |
0 |
211 |
71 |
289 |
375 |
215 |
7 |
0 |
| VODI |
0 |
152 |
73 |
192 |
402 |
486 |
42 |
0 |
| ODI |
0 |
84 |
52 |
251 |
340 |
972 |
138 |
0 |
| CDI |
0 |
146 |
44 |
297 |
690 |
2219 |
1514 |
0 |
| VCDI |
0 |
67 |
38 |
121 |
355 |
3354 |
22377 |
7177 |
|
...date precedes bulletin
|
Date: 2023-06-06:
| 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 |
0 |
2226 |
363 |
693 |
370 |
10 |
0 |
0 |
| OW |
0 |
166 |
89 |
266 |
264 |
37 |
1 |
0 |
| VODI |
0 |
79 |
59 |
214 |
454 |
153 |
17 |
0 |
| ODI |
0 |
64 |
31 |
154 |
535 |
482 |
148 |
0 |
| CDI |
0 |
40 |
25 |
164 |
490 |
1565 |
2797 |
0 |
| VCDI |
0 |
2 |
10 |
89 |
300 |
3955 |
25332 |
4222 |
|
...date precedes bulletin
|
Date: 2023-06-08:
| 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 |
0 |
2515 |
349 |
730 |
321 |
9 |
0 |
0 |
| OW |
0 |
194 |
94 |
361 |
232 |
22 |
7 |
0 |
| VODI |
0 |
130 |
60 |
437 |
464 |
174 |
36 |
0 |
| ODI |
0 |
71 |
34 |
256 |
617 |
400 |
124 |
0 |
| CDI |
0 |
221 |
78 |
710 |
1738 |
1559 |
1158 |
4 |
| VCDI |
0 |
9 |
12 |
80 |
373 |
3374 |
21558 |
7355 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
2510 |
366 |
775 |
342 |
12 |
0 |
0 |
| OW |
0 |
189 |
75 |
296 |
240 |
20 |
7 |
0 |
| VODI |
0 |
126 |
59 |
460 |
420 |
186 |
39 |
0 |
| ODI |
0 |
71 |
33 |
248 |
641 |
434 |
154 |
0 |
| CDI |
0 |
229 |
67 |
652 |
1705 |
1458 |
1124 |
2 |
| VCDI |
0 |
15 |
27 |
143 |
397 |
3428 |
21559 |
7357 |
|
Date: 2023-06-10:
| 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 |
0 |
2817 |
380 |
742 |
313 |
8 |
0 |
0 |
| OW |
0 |
251 |
127 |
365 |
282 |
38 |
1 |
0 |
| VODI |
0 |
121 |
97 |
437 |
529 |
282 |
29 |
0 |
| ODI |
0 |
74 |
34 |
148 |
621 |
720 |
59 |
0 |
| CDI |
0 |
77 |
36 |
119 |
390 |
3456 |
875 |
0 |
| VCDI |
0 |
78 |
34 |
71 |
223 |
3783 |
23023 |
5226 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
2825 |
384 |
780 |
342 |
7 |
0 |
0 |
| OW |
0 |
227 |
109 |
273 |
263 |
45 |
3 |
0 |
| VODI |
0 |
126 |
111 |
486 |
522 |
306 |
35 |
0 |
| ODI |
0 |
74 |
36 |
157 |
624 |
705 |
72 |
0 |
| CDI |
0 |
83 |
33 |
114 |
382 |
3507 |
895 |
0 |
| VCDI |
0 |
83 |
35 |
72 |
225 |
3717 |
22982 |
5226 |
|
Date: 2023-06-12:
| 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 |
0 |
3731 |
345 |
684 |
206 |
3 |
0 |
0 |
| OW |
0 |
600 |
197 |
382 |
177 |
13 |
3 |
0 |
| VODI |
0 |
416 |
132 |
616 |
636 |
121 |
9 |
0 |
| ODI |
0 |
191 |
64 |
419 |
1361 |
663 |
54 |
0 |
| CDI |
0 |
62 |
18 |
228 |
444 |
1362 |
476 |
0 |
| VCDI |
0 |
9 |
11 |
30 |
150 |
3471 |
25472 |
3110 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
3420 |
343 |
750 |
306 |
13 |
2 |
0 |
| OW |
0 |
357 |
100 |
336 |
317 |
77 |
20 |
0 |
| VODI |
0 |
272 |
128 |
418 |
674 |
242 |
73 |
0 |
| ODI |
0 |
264 |
62 |
303 |
657 |
349 |
96 |
0 |
| CDI |
0 |
537 |
101 |
488 |
821 |
1303 |
1023 |
4 |
| VCDI |
0 |
159 |
33 |
64 |
199 |
3649 |
24800 |
3106 |
|
Date: 2023-06-14:
| 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 |
0 |
4096 |
485 |
900 |
356 |
533 |
3 |
0 |
| OW |
0 |
268 |
93 |
323 |
329 |
339 |
20 |
0 |
| VODI |
0 |
114 |
68 |
282 |
621 |
729 |
34 |
0 |
| ODI |
0 |
103 |
26 |
142 |
613 |
1238 |
90 |
0 |
| CDI |
0 |
53 |
35 |
107 |
380 |
1288 |
479 |
0 |
| VCDI |
0 |
2 |
5 |
21 |
216 |
5106 |
19857 |
6512 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
3563 |
381 |
859 |
447 |
100 |
6 |
0 |
| OW |
0 |
374 |
135 |
325 |
350 |
168 |
42 |
0 |
| VODI |
0 |
255 |
64 |
283 |
638 |
447 |
92 |
0 |
| ODI |
0 |
130 |
51 |
88 |
487 |
1451 |
100 |
0 |
| CDI |
0 |
138 |
39 |
137 |
241 |
1999 |
1125 |
0 |
| VCDI |
0 |
176 |
42 |
83 |
352 |
5068 |
19118 |
6512 |
|
Date: 2023-06-16:
| 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 |
59 |
4573 |
482 |
863 |
515 |
579 |
0 |
0 |
| OW |
0 |
263 |
119 |
338 |
448 |
361 |
11 |
0 |
| VODI |
0 |
122 |
56 |
258 |
727 |
668 |
59 |
0 |
| ODI |
0 |
78 |
39 |
91 |
601 |
922 |
59 |
0 |
| CDI |
0 |
67 |
48 |
124 |
347 |
1604 |
1001 |
0 |
| VCDI |
0 |
0 |
6 |
156 |
911 |
4049 |
16550 |
8712 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
59 |
3948 |
405 |
824 |
498 |
103 |
23 |
0 |
| OW |
0 |
397 |
106 |
311 |
391 |
244 |
62 |
0 |
| VODI |
0 |
275 |
70 |
241 |
552 |
648 |
59 |
0 |
| ODI |
0 |
132 |
47 |
89 |
601 |
1325 |
76 |
0 |
| CDI |
0 |
142 |
55 |
125 |
420 |
1440 |
1411 |
0 |
| VCDI |
0 |
209 |
67 |
240 |
1087 |
4423 |
16049 |
8712 |
|
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