Validation of sea ice concentration - American sector
Bulletin date: 2024-06-20
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-06-14:
| 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 |
1504 |
2206 |
32 |
18 |
3 |
0 |
0 |
0 |
| OW |
17 |
1546 |
177 |
256 |
66 |
22 |
3 |
0 |
| VODI |
0 |
804 |
178 |
527 |
257 |
134 |
16 |
1 |
| ODI |
0 |
295 |
68 |
267 |
499 |
334 |
126 |
6 |
| CDI |
0 |
321 |
136 |
405 |
1156 |
2543 |
1214 |
21 |
| VCDI |
0 |
31 |
30 |
106 |
474 |
7210 |
19965 |
2892 |
|
...date precedes bulletin
|
Date: 2024-06-16:
| 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 |
1494 |
2157 |
29 |
21 |
4 |
0 |
0 |
0 |
| OW |
5 |
1591 |
251 |
255 |
76 |
30 |
7 |
0 |
| VODI |
0 |
733 |
161 |
454 |
275 |
134 |
41 |
0 |
| ODI |
0 |
348 |
83 |
257 |
502 |
349 |
108 |
0 |
| CDI |
0 |
379 |
129 |
365 |
1469 |
2309 |
1424 |
0 |
| VCDI |
0 |
27 |
31 |
144 |
1131 |
11114 |
14088 |
3891 |
|
...date precedes bulletin
|
Date: 2024-06-18:
| 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 |
1617 |
2721 |
59 |
36 |
4 |
0 |
0 |
0 |
| OW |
5 |
1947 |
184 |
186 |
48 |
3 |
1 |
0 |
| VODI |
0 |
649 |
195 |
654 |
345 |
26 |
15 |
0 |
| ODI |
0 |
182 |
95 |
548 |
936 |
336 |
78 |
0 |
| CDI |
0 |
82 |
36 |
219 |
1320 |
5517 |
1192 |
0 |
| VCDI |
0 |
2 |
10 |
81 |
901 |
11325 |
13318 |
993 |
|
...date precedes bulletin
|
Date: 2024-06-20:
| 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 |
1610 |
2929 |
69 |
40 |
4 |
0 |
0 |
0 |
| OW |
69 |
1626 |
228 |
222 |
66 |
4 |
2 |
0 |
| VODI |
19 |
694 |
212 |
646 |
442 |
80 |
18 |
0 |
| ODI |
3 |
206 |
84 |
472 |
866 |
410 |
78 |
0 |
| CDI |
0 |
94 |
37 |
242 |
1650 |
4934 |
1673 |
0 |
| VCDI |
0 |
27 |
16 |
226 |
1416 |
15443 |
8375 |
634 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1612 |
3056 |
90 |
51 |
14 |
0 |
0 |
0 |
| OW |
64 |
1444 |
203 |
219 |
66 |
6 |
3 |
0 |
| VODI |
22 |
736 |
212 |
627 |
431 |
103 |
20 |
0 |
| ODI |
3 |
216 |
88 |
474 |
826 |
360 |
68 |
0 |
| CDI |
0 |
94 |
35 |
233 |
1698 |
5095 |
1745 |
0 |
| VCDI |
0 |
30 |
18 |
244 |
1409 |
15307 |
8310 |
634 |
|
Date: 2024-06-22:
| 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 |
1777 |
2903 |
22 |
26 |
3 |
0 |
0 |
0 |
| OW |
68 |
1617 |
224 |
227 |
54 |
3 |
10 |
0 |
| VODI |
25 |
749 |
194 |
620 |
475 |
91 |
38 |
0 |
| ODI |
2 |
273 |
98 |
484 |
768 |
395 |
101 |
0 |
| CDI |
0 |
116 |
53 |
310 |
1612 |
4621 |
1530 |
5 |
| VCDI |
0 |
27 |
25 |
113 |
1687 |
15895 |
7316 |
1309 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1787 |
2973 |
39 |
32 |
9 |
0 |
2 |
0 |
| OW |
61 |
1480 |
204 |
240 |
69 |
3 |
12 |
0 |
| VODI |
18 |
790 |
193 |
558 |
453 |
99 |
38 |
0 |
| ODI |
6 |
292 |
98 |
530 |
757 |
419 |
68 |
0 |
| CDI |
0 |
95 |
43 |
270 |
1618 |
4570 |
1497 |
13 |
| VCDI |
0 |
55 |
39 |
150 |
1693 |
15914 |
7378 |
1301 |
|
Date: 2024-06-24:
| 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 |
1979 |
3508 |
39 |
61 |
1 |
1 |
1 |
0 |
| OW |
46 |
1638 |
293 |
305 |
24 |
5 |
4 |
0 |
| VODI |
11 |
315 |
257 |
1068 |
501 |
52 |
10 |
0 |
| ODI |
0 |
69 |
61 |
561 |
1634 |
490 |
35 |
0 |
| CDI |
0 |
8 |
14 |
169 |
1177 |
7710 |
1140 |
0 |
| VCDI |
0 |
0 |
3 |
34 |
1392 |
14992 |
6257 |
1 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1961 |
2943 |
51 |
79 |
7 |
2 |
7 |
0 |
| OW |
49 |
1331 |
195 |
343 |
95 |
20 |
5 |
0 |
| VODI |
23 |
823 |
200 |
531 |
406 |
129 |
17 |
0 |
| ODI |
3 |
307 |
128 |
589 |
786 |
508 |
71 |
0 |
| CDI |
0 |
88 |
54 |
513 |
1812 |
4365 |
1110 |
0 |
| VCDI |
0 |
46 |
39 |
143 |
1623 |
18226 |
6237 |
1 |
|
Date: 2024-06-26:
| 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 |
2211 |
3756 |
56 |
24 |
0 |
4 |
0 |
0 |
| OW |
44 |
1662 |
268 |
283 |
38 |
14 |
0 |
0 |
| VODI |
17 |
389 |
288 |
951 |
454 |
63 |
7 |
0 |
| ODI |
0 |
70 |
93 |
632 |
1426 |
514 |
104 |
0 |
| CDI |
0 |
16 |
21 |
222 |
1178 |
6100 |
893 |
0 |
| VCDI |
0 |
18 |
3 |
26 |
1450 |
19306 |
3264 |
1 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2201 |
3077 |
67 |
51 |
0 |
12 |
0 |
0 |
| OW |
45 |
1300 |
184 |
366 |
117 |
27 |
2 |
0 |
| VODI |
26 |
926 |
186 |
479 |
330 |
118 |
11 |
0 |
| ODI |
0 |
408 |
151 |
481 |
629 |
331 |
285 |
0 |
| CDI |
0 |
140 |
117 |
677 |
1879 |
5087 |
715 |
0 |
| VCDI |
0 |
60 |
24 |
84 |
1591 |
20426 |
3255 |
1 |
|
Date: 2024-06-28:
| 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 |
2531 |
3720 |
75 |
32 |
3 |
1 |
0 |
0 |
| OW |
47 |
1594 |
274 |
280 |
36 |
8 |
7 |
0 |
| VODI |
12 |
594 |
287 |
782 |
455 |
71 |
15 |
0 |
| ODI |
0 |
157 |
168 |
832 |
1565 |
660 |
159 |
0 |
| CDI |
0 |
27 |
35 |
217 |
3422 |
3553 |
357 |
0 |
| VCDI |
0 |
17 |
11 |
89 |
1386 |
20845 |
1542 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2523 |
3009 |
89 |
74 |
9 |
14 |
9 |
0 |
| OW |
44 |
1365 |
179 |
250 |
142 |
39 |
20 |
0 |
| VODI |
23 |
956 |
215 |
511 |
314 |
117 |
37 |
0 |
| ODI |
0 |
542 |
154 |
469 |
771 |
473 |
186 |
0 |
| CDI |
0 |
213 |
202 |
809 |
3840 |
2683 |
434 |
0 |
| VCDI |
0 |
24 |
11 |
119 |
1791 |
21812 |
1394 |
0 |
|
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