Validation of sea ice concentration - American sector
Bulletin date: 2024-06-27
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-06-21:
| 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 |
1703 |
2914 |
44 |
32 |
7 |
0 |
0 |
0 |
| OW |
63 |
1587 |
234 |
239 |
67 |
4 |
3 |
0 |
| VODI |
21 |
695 |
190 |
627 |
445 |
159 |
25 |
0 |
| ODI |
5 |
234 |
95 |
497 |
810 |
354 |
114 |
0 |
| CDI |
0 |
101 |
44 |
232 |
1767 |
4986 |
1349 |
0 |
| VCDI |
0 |
31 |
23 |
224 |
1623 |
15658 |
7925 |
735 |
|
...date precedes bulletin
|
Date: 2024-06-23:
| 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 |
2066 |
2673 |
30 |
35 |
4 |
1 |
1 |
0 |
| OW |
69 |
1573 |
229 |
250 |
57 |
11 |
13 |
0 |
| VODI |
26 |
779 |
188 |
601 |
466 |
105 |
25 |
0 |
| ODI |
1 |
364 |
110 |
446 |
731 |
438 |
103 |
0 |
| CDI |
0 |
103 |
47 |
469 |
1939 |
4158 |
1229 |
0 |
| VCDI |
0 |
31 |
27 |
77 |
1643 |
15791 |
8593 |
364 |
|
...date precedes bulletin
|
Date: 2024-06-25:
| 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 |
2392 |
3377 |
36 |
19 |
0 |
0 |
3 |
0 |
| OW |
47 |
1744 |
266 |
221 |
33 |
6 |
5 |
0 |
| VODI |
13 |
402 |
287 |
966 |
452 |
68 |
21 |
0 |
| ODI |
0 |
57 |
75 |
574 |
1359 |
550 |
43 |
0 |
| CDI |
0 |
17 |
17 |
130 |
1023 |
6985 |
1272 |
0 |
| VCDI |
0 |
18 |
4 |
19 |
1452 |
15956 |
5957 |
0 |
|
...date precedes bulletin
|
Date: 2024-06-27:
| 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 |
2439 |
3685 |
62 |
18 |
1 |
4 |
0 |
0 |
| OW |
46 |
1607 |
254 |
300 |
28 |
12 |
4 |
0 |
| VODI |
18 |
461 |
330 |
872 |
409 |
116 |
3 |
0 |
| ODI |
0 |
98 |
109 |
818 |
1535 |
693 |
88 |
0 |
| CDI |
0 |
17 |
26 |
225 |
2050 |
5006 |
462 |
0 |
| VCDI |
0 |
18 |
5 |
25 |
1306 |
20203 |
2512 |
1 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2446 |
3827 |
72 |
29 |
1 |
5 |
0 |
0 |
| OW |
37 |
1455 |
235 |
322 |
34 |
11 |
4 |
0 |
| VODI |
20 |
475 |
339 |
829 |
406 |
124 |
6 |
0 |
| ODI |
0 |
90 |
106 |
833 |
1566 |
715 |
110 |
0 |
| CDI |
0 |
17 |
27 |
203 |
2006 |
5063 |
430 |
0 |
| VCDI |
0 |
22 |
7 |
42 |
1316 |
20116 |
2519 |
1 |
|
Date: 2024-06-29:
| 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 |
2604 |
3818 |
59 |
24 |
5 |
1 |
0 |
0 |
| OW |
50 |
1637 |
262 |
230 |
30 |
21 |
0 |
0 |
| VODI |
8 |
584 |
283 |
747 |
483 |
81 |
9 |
0 |
| ODI |
0 |
194 |
194 |
843 |
1566 |
675 |
242 |
0 |
| CDI |
0 |
34 |
56 |
226 |
3105 |
3906 |
175 |
0 |
| VCDI |
0 |
15 |
4 |
36 |
1148 |
21528 |
983 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2613 |
3969 |
70 |
35 |
6 |
0 |
0 |
0 |
| OW |
40 |
1493 |
253 |
257 |
32 |
19 |
0 |
0 |
| VODI |
8 |
599 |
288 |
707 |
506 |
86 |
9 |
0 |
| ODI |
1 |
166 |
180 |
829 |
1536 |
684 |
240 |
0 |
| CDI |
0 |
32 |
55 |
230 |
3125 |
3985 |
155 |
0 |
| VCDI |
0 |
23 |
12 |
48 |
1132 |
21438 |
1005 |
0 |
|
Date: 2024-07-01:
| 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 |
2616 |
4509 |
81 |
24 |
1 |
1 |
0 |
0 |
| OW |
19 |
1905 |
330 |
394 |
26 |
6 |
0 |
0 |
| VODI |
1 |
407 |
322 |
1237 |
606 |
32 |
3 |
0 |
| ODI |
0 |
25 |
28 |
353 |
3150 |
819 |
21 |
0 |
| CDI |
0 |
34 |
18 |
62 |
1640 |
9968 |
353 |
0 |
| VCDI |
0 |
3 |
5 |
34 |
1315 |
13882 |
1636 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2605 |
3992 |
62 |
32 |
6 |
5 |
0 |
0 |
| OW |
27 |
1526 |
253 |
283 |
58 |
36 |
0 |
0 |
| VODI |
4 |
783 |
228 |
763 |
596 |
146 |
9 |
0 |
| ODI |
0 |
501 |
169 |
701 |
1440 |
509 |
40 |
0 |
| CDI |
0 |
54 |
67 |
289 |
2788 |
4968 |
287 |
0 |
| VCDI |
0 |
27 |
5 |
36 |
1850 |
19044 |
1677 |
0 |
|
Date: 2024-07-03:
| 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 |
2533 |
4780 |
56 |
28 |
3 |
1 |
0 |
0 |
| OW |
4 |
2076 |
272 |
245 |
33 |
22 |
2 |
0 |
| VODI |
1 |
643 |
347 |
1209 |
732 |
70 |
12 |
0 |
| ODI |
0 |
39 |
48 |
436 |
3206 |
556 |
15 |
0 |
| CDI |
0 |
54 |
14 |
87 |
4795 |
6036 |
460 |
0 |
| VCDI |
0 |
12 |
7 |
39 |
2063 |
13309 |
1621 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2516 |
4186 |
55 |
44 |
6 |
14 |
0 |
0 |
| OW |
16 |
1703 |
225 |
244 |
99 |
42 |
6 |
0 |
| VODI |
5 |
939 |
264 |
851 |
793 |
288 |
16 |
0 |
| ODI |
1 |
643 |
126 |
560 |
1240 |
321 |
5 |
0 |
| CDI |
0 |
100 |
67 |
303 |
4740 |
2497 |
81 |
0 |
| VCDI |
0 |
33 |
7 |
42 |
3954 |
16832 |
2002 |
0 |
|
Date: 2024-07-05:
| 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 |
2515 |
4973 |
69 |
27 |
6 |
2 |
0 |
0 |
| OW |
24 |
2272 |
235 |
278 |
64 |
30 |
3 |
0 |
| VODI |
0 |
674 |
315 |
1058 |
878 |
171 |
2 |
0 |
| ODI |
0 |
112 |
63 |
534 |
3419 |
637 |
2 |
0 |
| CDI |
24 |
14 |
20 |
134 |
3915 |
8258 |
10 |
0 |
| VCDI |
9 |
2 |
3 |
37 |
740 |
12608 |
1729 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2503 |
4343 |
58 |
36 |
16 |
24 |
0 |
0 |
| OW |
32 |
1729 |
200 |
260 |
108 |
41 |
0 |
0 |
| VODI |
4 |
1285 |
234 |
805 |
783 |
317 |
0 |
0 |
| ODI |
0 |
551 |
130 |
521 |
1249 |
390 |
7 |
0 |
| CDI |
4 |
137 |
80 |
409 |
5438 |
5220 |
14 |
0 |
| VCDI |
29 |
2 |
3 |
37 |
1428 |
15714 |
1725 |
0 |
|
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