Validation of sea ice concentration - American sector
Bulletin date: 2023-06-15
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-06-09:
| 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 |
0 |
2644 |
331 |
786 |
278 |
7 |
0 |
0 |
| OW |
0 |
231 |
129 |
385 |
256 |
24 |
0 |
0 |
| VODI |
0 |
113 |
94 |
471 |
577 |
136 |
13 |
0 |
| ODI |
0 |
84 |
35 |
201 |
788 |
392 |
44 |
0 |
| CDI |
0 |
67 |
31 |
147 |
1798 |
2409 |
809 |
0 |
| VCDI |
0 |
52 |
21 |
76 |
264 |
3537 |
24261 |
4375 |
|
...date precedes bulletin
|
Date: 2023-06-11:
| 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 |
0 |
3139 |
308 |
709 |
300 |
19 |
0 |
0 |
| OW |
0 |
307 |
112 |
401 |
286 |
82 |
13 |
0 |
| VODI |
0 |
192 |
105 |
348 |
588 |
263 |
80 |
0 |
| ODI |
0 |
83 |
48 |
253 |
607 |
539 |
186 |
0 |
| CDI |
0 |
103 |
41 |
123 |
878 |
2622 |
826 |
0 |
| VCDI |
0 |
112 |
33 |
66 |
88 |
3104 |
24589 |
4313 |
|
...date precedes bulletin
|
Date: 2023-06-13:
| 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 |
1 |
4084 |
429 |
770 |
492 |
62 |
0 |
0 |
| OW |
0 |
281 |
147 |
420 |
414 |
75 |
2 |
0 |
| VODI |
0 |
148 |
114 |
491 |
761 |
301 |
19 |
0 |
| ODI |
0 |
199 |
57 |
307 |
937 |
862 |
97 |
0 |
| CDI |
0 |
49 |
26 |
95 |
360 |
1382 |
492 |
0 |
| VCDI |
0 |
1 |
4 |
26 |
84 |
5699 |
21867 |
4311 |
|
...date precedes bulletin
|
Date: 2023-06-15:
| 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 |
17 |
4451 |
500 |
840 |
344 |
648 |
4 |
0 |
| OW |
0 |
241 |
93 |
343 |
392 |
360 |
11 |
0 |
| VODI |
0 |
103 |
45 |
245 |
552 |
853 |
63 |
0 |
| ODI |
0 |
78 |
43 |
105 |
406 |
1168 |
175 |
0 |
| CDI |
0 |
50 |
40 |
117 |
404 |
1254 |
678 |
0 |
| VCDI |
0 |
5 |
6 |
15 |
707 |
4490 |
20256 |
5764 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17 |
4476 |
499 |
870 |
415 |
658 |
6 |
0 |
| OW |
0 |
209 |
93 |
311 |
321 |
373 |
9 |
0 |
| VODI |
0 |
108 |
49 |
250 |
602 |
921 |
79 |
0 |
| ODI |
0 |
78 |
40 |
102 |
361 |
1091 |
165 |
0 |
| CDI |
0 |
53 |
39 |
116 |
394 |
1213 |
728 |
0 |
| VCDI |
0 |
4 |
7 |
16 |
712 |
4517 |
20200 |
5764 |
|
Date: 2023-06-17:
| 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 |
55 |
4750 |
489 |
867 |
1083 |
119 |
0 |
0 |
| OW |
0 |
305 |
127 |
337 |
758 |
127 |
5 |
0 |
| VODI |
0 |
143 |
63 |
359 |
1014 |
307 |
24 |
0 |
| ODI |
0 |
82 |
29 |
97 |
1003 |
324 |
41 |
0 |
| CDI |
0 |
73 |
52 |
132 |
631 |
1526 |
1080 |
0 |
| VCDI |
0 |
9 |
10 |
227 |
1081 |
3285 |
14660 |
10592 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
55 |
4785 |
496 |
891 |
1174 |
144 |
1 |
0 |
| OW |
0 |
273 |
121 |
330 |
696 |
104 |
4 |
0 |
| VODI |
0 |
140 |
61 |
344 |
1067 |
375 |
25 |
0 |
| ODI |
0 |
81 |
31 |
101 |
936 |
280 |
40 |
0 |
| CDI |
0 |
74 |
52 |
128 |
599 |
1387 |
981 |
0 |
| VCDI |
0 |
9 |
9 |
225 |
1098 |
3398 |
14759 |
10592 |
|
Date: 2023-06-19:
| 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 |
84 |
5353 |
488 |
949 |
971 |
12 |
1 |
0 |
| OW |
0 |
353 |
129 |
370 |
461 |
27 |
6 |
0 |
| VODI |
0 |
167 |
125 |
620 |
1071 |
58 |
4 |
0 |
| ODI |
0 |
37 |
21 |
227 |
1598 |
270 |
23 |
0 |
| CDI |
0 |
18 |
16 |
76 |
766 |
3643 |
504 |
0 |
| VCDI |
0 |
0 |
0 |
8 |
1012 |
4615 |
11560 |
10223 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
84 |
5219 |
499 |
1076 |
1340 |
28 |
6 |
0 |
| OW |
0 |
306 |
102 |
433 |
767 |
83 |
2 |
0 |
| VODI |
0 |
197 |
84 |
375 |
1082 |
69 |
18 |
0 |
| ODI |
0 |
96 |
40 |
146 |
699 |
108 |
62 |
0 |
| CDI |
0 |
97 |
48 |
195 |
805 |
2021 |
513 |
0 |
| VCDI |
0 |
13 |
6 |
25 |
1186 |
6316 |
11497 |
10223 |
|
Date: 2023-06-21:
| 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 |
101 |
6000 |
591 |
1452 |
614 |
10 |
3 |
0 |
| OW |
0 |
412 |
138 |
651 |
472 |
24 |
9 |
0 |
| VODI |
0 |
181 |
92 |
555 |
1042 |
66 |
17 |
0 |
| ODI |
0 |
33 |
16 |
182 |
753 |
291 |
44 |
0 |
| CDI |
0 |
20 |
16 |
83 |
936 |
4073 |
763 |
0 |
| VCDI |
0 |
0 |
0 |
34 |
1421 |
5631 |
9168 |
9972 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
101 |
5709 |
560 |
1644 |
938 |
20 |
16 |
0 |
| OW |
0 |
420 |
98 |
583 |
624 |
23 |
13 |
0 |
| VODI |
0 |
239 |
106 |
317 |
677 |
56 |
33 |
0 |
| ODI |
0 |
108 |
41 |
170 |
429 |
154 |
61 |
0 |
| CDI |
0 |
169 |
40 |
166 |
932 |
2864 |
719 |
0 |
| VCDI |
0 |
1 |
8 |
77 |
1638 |
6978 |
9162 |
9972 |
|
Date: 2023-06-23:
| 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 |
162 |
6436 |
531 |
1749 |
543 |
28 |
6 |
0 |
| OW |
2 |
389 |
134 |
845 |
423 |
41 |
20 |
0 |
| VODI |
0 |
101 |
67 |
438 |
1032 |
84 |
53 |
0 |
| ODI |
0 |
52 |
18 |
139 |
348 |
238 |
86 |
0 |
| CDI |
0 |
28 |
30 |
118 |
930 |
3796 |
1464 |
0 |
| VCDI |
0 |
0 |
1 |
42 |
798 |
5628 |
9191 |
9875 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
162 |
6142 |
503 |
2198 |
876 |
43 |
30 |
0 |
| OW |
2 |
367 |
90 |
391 |
495 |
28 |
20 |
0 |
| VODI |
0 |
238 |
81 |
307 |
512 |
78 |
48 |
0 |
| ODI |
0 |
130 |
35 |
160 |
307 |
200 |
90 |
0 |
| CDI |
0 |
125 |
66 |
239 |
914 |
3010 |
1127 |
0 |
| VCDI |
0 |
4 |
6 |
36 |
970 |
6456 |
9505 |
9875 |
|
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