Validation of sea ice concentration - American sector
Bulletin date: 2023-06-29
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
|
...date precedes bulletin
|
Date: 2023-06-25:
| 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 |
189 |
7555 |
593 |
1644 |
416 |
42 |
4 |
0 |
| OW |
1 |
376 |
120 |
681 |
614 |
42 |
30 |
0 |
| VODI |
0 |
120 |
67 |
274 |
491 |
54 |
70 |
0 |
| ODI |
0 |
69 |
33 |
145 |
409 |
291 |
80 |
0 |
| CDI |
0 |
55 |
32 |
106 |
1164 |
4530 |
1037 |
0 |
| VCDI |
0 |
0 |
1 |
6 |
716 |
7984 |
11792 |
4033 |
|
...date precedes bulletin
|
Date: 2023-06-27:
| 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 |
577 |
8312 |
634 |
1492 |
349 |
18 |
6 |
0 |
| OW |
1 |
177 |
94 |
534 |
234 |
34 |
5 |
0 |
| VODI |
0 |
88 |
64 |
410 |
514 |
35 |
11 |
0 |
| ODI |
0 |
27 |
37 |
153 |
736 |
348 |
21 |
0 |
| CDI |
0 |
9 |
8 |
81 |
1168 |
5008 |
413 |
0 |
| VCDI |
0 |
0 |
1 |
4 |
273 |
7820 |
14132 |
2038 |
|
...date precedes bulletin
|
Date: 2023-06-29:
| 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 |
669 |
9178 |
687 |
1004 |
302 |
37 |
1 |
0 |
| OW |
0 |
224 |
128 |
464 |
242 |
17 |
3 |
0 |
| VODI |
0 |
107 |
67 |
268 |
413 |
67 |
5 |
0 |
| ODI |
0 |
21 |
32 |
153 |
576 |
606 |
29 |
0 |
| CDI |
0 |
6 |
12 |
64 |
789 |
5279 |
1074 |
0 |
| VCDI |
0 |
0 |
2 |
2 |
181 |
8372 |
11117 |
3668 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
669 |
9219 |
717 |
1091 |
321 |
37 |
1 |
0 |
| OW |
0 |
192 |
103 |
373 |
267 |
21 |
3 |
0 |
| VODI |
0 |
102 |
65 |
278 |
367 |
70 |
4 |
0 |
| ODI |
0 |
17 |
29 |
151 |
551 |
587 |
40 |
0 |
| CDI |
0 |
6 |
12 |
60 |
814 |
5293 |
1196 |
0 |
| VCDI |
0 |
0 |
2 |
2 |
183 |
8370 |
10985 |
3668 |
|
Date: 2023-07-01:
| 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 |
1108 |
9727 |
407 |
788 |
236 |
32 |
1 |
0 |
| OW |
0 |
393 |
127 |
370 |
151 |
19 |
1 |
0 |
| VODI |
0 |
107 |
84 |
225 |
308 |
98 |
6 |
0 |
| ODI |
0 |
23 |
38 |
135 |
819 |
607 |
23 |
0 |
| CDI |
0 |
7 |
9 |
66 |
1422 |
6150 |
625 |
0 |
| VCDI |
0 |
0 |
1 |
6 |
1161 |
13065 |
7277 |
244 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1108 |
9887 |
436 |
826 |
278 |
32 |
1 |
0 |
| OW |
0 |
246 |
104 |
342 |
130 |
23 |
1 |
0 |
| VODI |
0 |
94 |
80 |
227 |
273 |
95 |
5 |
0 |
| ODI |
0 |
26 |
38 |
123 |
774 |
586 |
23 |
0 |
| CDI |
0 |
4 |
7 |
66 |
1458 |
6232 |
630 |
0 |
| VCDI |
0 |
0 |
1 |
6 |
1184 |
13003 |
7273 |
244 |
|
Date: 2023-07-03:
| 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 |
769 |
10576 |
440 |
678 |
185 |
11 |
0 |
0 |
| OW |
0 |
238 |
132 |
233 |
85 |
14 |
1 |
0 |
| VODI |
0 |
76 |
80 |
334 |
255 |
40 |
4 |
0 |
| ODI |
0 |
12 |
24 |
169 |
1218 |
634 |
3 |
0 |
| CDI |
0 |
0 |
0 |
34 |
1055 |
11712 |
287 |
0 |
| VCDI |
0 |
0 |
1 |
12 |
259 |
11957 |
4321 |
17 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
769 |
10541 |
479 |
782 |
256 |
21 |
0 |
0 |
| OW |
0 |
192 |
86 |
268 |
118 |
24 |
0 |
0 |
| VODI |
0 |
121 |
67 |
176 |
333 |
104 |
4 |
0 |
| ODI |
0 |
38 |
33 |
128 |
776 |
876 |
55 |
0 |
| CDI |
0 |
10 |
11 |
94 |
1197 |
8332 |
240 |
0 |
| VCDI |
0 |
0 |
1 |
12 |
377 |
15011 |
4317 |
17 |
|
Date: 2023-07-05:
| 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 |
2499 |
9682 |
332 |
549 |
102 |
32 |
0 |
0 |
| OW |
0 |
259 |
115 |
177 |
93 |
12 |
1 |
0 |
| VODI |
0 |
66 |
75 |
293 |
347 |
35 |
9 |
0 |
| ODI |
0 |
5 |
22 |
196 |
1627 |
605 |
38 |
0 |
| CDI |
0 |
0 |
0 |
76 |
2882 |
8731 |
886 |
0 |
| VCDI |
0 |
0 |
0 |
9 |
1469 |
10880 |
3762 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2499 |
9544 |
326 |
594 |
176 |
37 |
1 |
0 |
| OW |
0 |
234 |
91 |
163 |
113 |
17 |
4 |
0 |
| VODI |
0 |
176 |
71 |
192 |
397 |
113 |
24 |
0 |
| ODI |
0 |
54 |
44 |
205 |
1110 |
892 |
89 |
0 |
| CDI |
0 |
4 |
12 |
137 |
3126 |
6237 |
597 |
0 |
| VCDI |
0 |
0 |
0 |
9 |
1598 |
12999 |
3981 |
0 |
|
Date: 2023-07-07:
| 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 |
3940 |
8601 |
315 |
414 |
133 |
40 |
1 |
0 |
| OW |
0 |
201 |
126 |
201 |
100 |
14 |
5 |
0 |
| VODI |
0 |
78 |
76 |
314 |
446 |
94 |
17 |
0 |
| ODI |
0 |
1 |
14 |
261 |
1866 |
737 |
48 |
0 |
| CDI |
0 |
0 |
0 |
128 |
2549 |
9226 |
423 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
587 |
11779 |
3125 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
3940 |
8361 |
294 |
450 |
187 |
42 |
3 |
0 |
| OW |
0 |
246 |
103 |
146 |
118 |
20 |
8 |
0 |
| VODI |
0 |
186 |
73 |
212 |
517 |
149 |
51 |
0 |
| ODI |
0 |
82 |
52 |
324 |
1297 |
868 |
31 |
0 |
| CDI |
0 |
6 |
9 |
191 |
2920 |
7731 |
648 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
642 |
13080 |
2878 |
0 |
|
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