Validation of sea ice concentration - American sector
Bulletin date: 2024-07-11
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
|
...date precedes bulletin
|
Date: 2024-07-07:
| 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 |
3531 |
4435 |
64 |
24 |
9 |
1 |
1 |
0 |
| OW |
56 |
2129 |
258 |
312 |
122 |
37 |
4 |
0 |
| VODI |
1 |
534 |
340 |
1119 |
909 |
196 |
10 |
0 |
| ODI |
0 |
87 |
59 |
536 |
3316 |
711 |
75 |
0 |
| CDI |
23 |
17 |
17 |
153 |
4623 |
7237 |
118 |
0 |
| VCDI |
10 |
8 |
8 |
43 |
720 |
12768 |
1245 |
0 |
|
...date precedes bulletin
|
Date: 2024-07-09:
| 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 |
3831 |
5478 |
58 |
50 |
16 |
3 |
0 |
0 |
| OW |
19 |
1590 |
348 |
380 |
58 |
24 |
5 |
0 |
| VODI |
6 |
217 |
281 |
1213 |
668 |
83 |
8 |
0 |
| ODI |
8 |
32 |
27 |
385 |
4432 |
1758 |
19 |
0 |
| CDI |
17 |
15 |
5 |
54 |
3165 |
13504 |
141 |
0 |
| VCDI |
2 |
6 |
7 |
22 |
310 |
6621 |
1000 |
0 |
|
...date precedes bulletin
|
Date: 2024-07-11:
| 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 |
3530 |
6109 |
78 |
56 |
23 |
7 |
0 |
0 |
| OW |
17 |
1612 |
301 |
392 |
75 |
29 |
1 |
0 |
| VODI |
10 |
411 |
334 |
1191 |
850 |
91 |
1 |
0 |
| ODI |
7 |
49 |
27 |
475 |
3229 |
2529 |
0 |
0 |
| CDI |
15 |
19 |
10 |
62 |
1090 |
15400 |
6 |
0 |
| VCDI |
0 |
11 |
6 |
41 |
343 |
7419 |
10 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
3533 |
6188 |
90 |
65 |
31 |
11 |
0 |
0 |
| OW |
14 |
1513 |
274 |
386 |
77 |
28 |
1 |
0 |
| VODI |
8 |
422 |
340 |
1104 |
758 |
89 |
1 |
0 |
| ODI |
5 |
57 |
35 |
549 |
3200 |
2768 |
0 |
0 |
| CDI |
13 |
19 |
10 |
68 |
1212 |
14992 |
7 |
0 |
| VCDI |
6 |
12 |
7 |
45 |
332 |
7587 |
9 |
0 |
|
Date: 2024-07-13:
| 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 |
4195 |
5870 |
74 |
89 |
33 |
15 |
0 |
0 |
| OW |
4 |
1697 |
309 |
321 |
102 |
29 |
2 |
0 |
| VODI |
9 |
535 |
360 |
1209 |
1046 |
144 |
0 |
0 |
| ODI |
11 |
54 |
34 |
592 |
3413 |
644 |
0 |
0 |
| CDI |
13 |
28 |
9 |
26 |
4187 |
17547 |
16 |
0 |
| VCDI |
0 |
14 |
13 |
37 |
366 |
2778 |
41 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
4195 |
5967 |
86 |
111 |
45 |
18 |
0 |
0 |
| OW |
4 |
1540 |
276 |
312 |
99 |
31 |
2 |
0 |
| VODI |
8 |
572 |
362 |
1100 |
1087 |
139 |
0 |
0 |
| ODI |
7 |
73 |
53 |
660 |
3371 |
643 |
0 |
0 |
| CDI |
16 |
31 |
9 |
58 |
4143 |
17123 |
16 |
0 |
| VCDI |
2 |
15 |
13 |
33 |
402 |
3203 |
41 |
0 |
|
Date: 2024-07-15:
| 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 |
4825 |
6475 |
109 |
94 |
21 |
0 |
0 |
0 |
| OW |
22 |
1497 |
308 |
264 |
50 |
11 |
0 |
0 |
| VODI |
1 |
362 |
332 |
1276 |
661 |
54 |
0 |
0 |
| ODI |
3 |
9 |
9 |
613 |
4713 |
533 |
1 |
0 |
| CDI |
5 |
67 |
16 |
49 |
2280 |
18339 |
504 |
0 |
| VCDI |
0 |
1 |
3 |
70 |
619 |
1205 |
465 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
4819 |
5803 |
98 |
109 |
46 |
14 |
0 |
0 |
| OW |
4 |
1681 |
219 |
232 |
79 |
45 |
0 |
0 |
| VODI |
10 |
764 |
375 |
1244 |
1458 |
145 |
0 |
0 |
| ODI |
11 |
88 |
66 |
618 |
2569 |
396 |
5 |
0 |
| CDI |
11 |
43 |
0 |
56 |
3452 |
16753 |
791 |
0 |
| VCDI |
1 |
32 |
19 |
107 |
740 |
2789 |
174 |
0 |
|
Date: 2024-07-17:
| 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 |
5260 |
6317 |
75 |
50 |
15 |
0 |
0 |
0 |
| OW |
40 |
1506 |
234 |
313 |
94 |
7 |
0 |
0 |
| VODI |
1 |
493 |
347 |
1353 |
995 |
46 |
0 |
0 |
| ODI |
2 |
20 |
27 |
633 |
4222 |
133 |
0 |
0 |
| CDI |
5 |
84 |
25 |
70 |
7018 |
14200 |
155 |
0 |
| VCDI |
0 |
3 |
3 |
45 |
260 |
1804 |
11 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
5237 |
5631 |
84 |
83 |
58 |
8 |
0 |
0 |
| OW |
34 |
1595 |
167 |
366 |
120 |
27 |
0 |
0 |
| VODI |
22 |
996 |
353 |
1241 |
1817 |
100 |
0 |
0 |
| ODI |
8 |
106 |
75 |
633 |
2295 |
117 |
0 |
0 |
| CDI |
7 |
35 |
9 |
54 |
7663 |
13346 |
155 |
0 |
| VCDI |
0 |
60 |
23 |
87 |
651 |
2592 |
11 |
0 |
|
Date: 2024-07-19:
| 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 |
5420 |
6420 |
83 |
46 |
2 |
0 |
0 |
0 |
| OW |
3 |
1537 |
264 |
350 |
76 |
7 |
0 |
0 |
| VODI |
3 |
554 |
384 |
1912 |
1033 |
96 |
0 |
0 |
| ODI |
1 |
22 |
47 |
789 |
3411 |
210 |
0 |
0 |
| CDI |
4 |
123 |
21 |
64 |
6689 |
13499 |
325 |
0 |
| VCDI |
0 |
7 |
8 |
43 |
801 |
1439 |
173 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
5390 |
5556 |
96 |
81 |
14 |
2 |
0 |
0 |
| OW |
15 |
1777 |
165 |
329 |
165 |
30 |
0 |
0 |
| VODI |
17 |
1003 |
381 |
1754 |
1141 |
203 |
0 |
0 |
| ODI |
2 |
189 |
130 |
896 |
1967 |
136 |
0 |
0 |
| CDI |
7 |
32 |
16 |
72 |
7637 |
13001 |
116 |
0 |
| VCDI |
0 |
106 |
19 |
72 |
1088 |
1879 |
382 |
0 |
|
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