Validation of sea ice concentration - American sector
Bulletin date: 2024-07-04
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
16461 |
4139 |
61 |
39 |
3 |
1 |
0 |
0 |
| OW |
21 |
1606 |
326 |
367 |
34 |
14 |
0 |
0 |
| VODI |
11 |
460 |
203 |
1250 |
416 |
64 |
0 |
0 |
| ODI |
3 |
57 |
63 |
1043 |
1780 |
712 |
4 |
0 |
| CDI |
0 |
29 |
1 |
200 |
3638 |
3819 |
83 |
0 |
| VCDI |
0 |
13 |
1 |
46 |
1595 |
21737 |
928 |
3 |
|
...date precedes bulletin
|
Date: 2024-06-30:
| 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 |
16493 |
4285 |
62 |
42 |
11 |
0 |
0 |
0 |
| OW |
20 |
1649 |
241 |
381 |
62 |
0 |
0 |
0 |
| VODI |
12 |
583 |
174 |
1185 |
512 |
69 |
0 |
0 |
| ODI |
2 |
216 |
174 |
957 |
1899 |
531 |
0 |
0 |
| CDI |
0 |
44 |
3 |
268 |
3079 |
4143 |
52 |
0 |
| VCDI |
0 |
9 |
1 |
46 |
1955 |
21223 |
841 |
7 |
|
...date precedes bulletin
|
Date: 2024-07-02:
| 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 |
16946 |
4637 |
61 |
39 |
6 |
0 |
0 |
0 |
| OW |
39 |
2033 |
346 |
331 |
78 |
0 |
0 |
0 |
| VODI |
9 |
188 |
205 |
1885 |
701 |
11 |
0 |
0 |
| ODI |
1 |
26 |
0 |
318 |
2929 |
1136 |
0 |
0 |
| CDI |
34 |
3 |
1 |
84 |
2728 |
8242 |
0 |
0 |
| VCDI |
16 |
0 |
0 |
36 |
1614 |
15393 |
1155 |
0 |
|
...date precedes bulletin
|
Date: 2024-07-04:
| 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 |
17310 |
4540 |
48 |
78 |
9 |
0 |
0 |
0 |
| OW |
72 |
2182 |
199 |
324 |
109 |
12 |
0 |
0 |
| VODI |
8 |
300 |
249 |
1680 |
909 |
41 |
0 |
0 |
| ODI |
7 |
30 |
10 |
437 |
3707 |
345 |
0 |
0 |
| CDI |
43 |
14 |
4 |
114 |
5308 |
7253 |
31 |
0 |
| VCDI |
16 |
0 |
0 |
39 |
647 |
11715 |
3439 |
2 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17320 |
4736 |
52 |
95 |
22 |
0 |
0 |
0 |
| OW |
59 |
2001 |
204 |
365 |
112 |
12 |
0 |
0 |
| VODI |
11 |
285 |
240 |
1602 |
934 |
39 |
0 |
0 |
| ODI |
5 |
29 |
9 |
461 |
3564 |
374 |
0 |
0 |
| CDI |
42 |
15 |
5 |
107 |
5436 |
6872 |
18 |
0 |
| VCDI |
19 |
0 |
0 |
42 |
621 |
12069 |
3452 |
2 |
|
Date: 2024-07-06:
| 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 |
18100 |
4029 |
33 |
51 |
10 |
0 |
0 |
0 |
| OW |
116 |
2251 |
211 |
382 |
149 |
2 |
0 |
0 |
| VODI |
10 |
306 |
254 |
1612 |
1066 |
58 |
0 |
0 |
| ODI |
3 |
37 |
15 |
549 |
3749 |
558 |
0 |
0 |
| CDI |
31 |
5 |
4 |
131 |
4740 |
7565 |
1 |
0 |
| VCDI |
16 |
0 |
0 |
44 |
950 |
13371 |
822 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18097 |
4353 |
35 |
92 |
25 |
0 |
0 |
0 |
| OW |
123 |
1913 |
216 |
451 |
162 |
5 |
0 |
0 |
| VODI |
6 |
312 |
235 |
1487 |
1041 |
97 |
0 |
0 |
| ODI |
1 |
46 |
27 |
572 |
3694 |
504 |
0 |
0 |
| CDI |
30 |
4 |
4 |
117 |
4674 |
7182 |
1 |
0 |
| VCDI |
19 |
0 |
0 |
50 |
1068 |
13766 |
822 |
0 |
|
Date: 2024-07-08:
| 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 |
18736 |
4954 |
32 |
23 |
7 |
0 |
0 |
0 |
| OW |
54 |
1568 |
501 |
392 |
67 |
2 |
0 |
0 |
| VODI |
21 |
47 |
38 |
1900 |
540 |
18 |
0 |
0 |
| ODI |
13 |
8 |
1 |
202 |
6210 |
385 |
0 |
0 |
| CDI |
26 |
1 |
5 |
60 |
1667 |
13519 |
15 |
0 |
| VCDI |
6 |
0 |
0 |
40 |
301 |
8889 |
983 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18709 |
4276 |
34 |
66 |
38 |
0 |
0 |
0 |
| OW |
76 |
1820 |
219 |
455 |
209 |
6 |
0 |
0 |
| VODI |
6 |
425 |
285 |
1249 |
1036 |
195 |
0 |
0 |
| ODI |
9 |
54 |
33 |
591 |
3528 |
730 |
0 |
0 |
| CDI |
38 |
3 |
6 |
184 |
3346 |
8301 |
0 |
0 |
| VCDI |
18 |
0 |
0 |
72 |
635 |
13581 |
998 |
0 |
|
Date: 2024-07-10:
| 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 |
18812 |
5170 |
32 |
62 |
38 |
0 |
0 |
0 |
| OW |
40 |
1483 |
375 |
551 |
89 |
0 |
0 |
0 |
| VODI |
21 |
66 |
81 |
1706 |
919 |
14 |
0 |
0 |
| ODI |
15 |
30 |
3 |
252 |
5570 |
1088 |
0 |
0 |
| CDI |
25 |
6 |
1 |
73 |
1306 |
14807 |
90 |
0 |
| VCDI |
2 |
0 |
1 |
31 |
248 |
7912 |
312 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18789 |
4365 |
47 |
119 |
52 |
0 |
0 |
0 |
| OW |
56 |
1840 |
147 |
531 |
265 |
6 |
0 |
0 |
| VODI |
7 |
474 |
245 |
1142 |
1395 |
103 |
0 |
0 |
| ODI |
10 |
56 |
49 |
647 |
3578 |
678 |
0 |
0 |
| CDI |
38 |
20 |
4 |
169 |
2617 |
9002 |
4 |
0 |
| VCDI |
15 |
0 |
1 |
67 |
263 |
14032 |
398 |
0 |
|
Date: 2024-07-12:
| 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 |
19394 |
5077 |
44 |
56 |
49 |
0 |
0 |
0 |
| OW |
50 |
1465 |
380 |
564 |
100 |
6 |
0 |
0 |
| VODI |
19 |
171 |
178 |
1774 |
984 |
22 |
0 |
0 |
| ODI |
16 |
21 |
0 |
342 |
4528 |
738 |
1 |
0 |
| CDI |
25 |
12 |
5 |
66 |
1486 |
16841 |
210 |
0 |
| VCDI |
1 |
12 |
3 |
38 |
504 |
5997 |
52 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
19337 |
4093 |
36 |
53 |
23 |
0 |
0 |
0 |
| OW |
98 |
1983 |
175 |
530 |
243 |
8 |
0 |
0 |
| VODI |
9 |
559 |
313 |
1163 |
1323 |
147 |
0 |
0 |
| ODI |
19 |
91 |
72 |
866 |
2968 |
688 |
1 |
0 |
| CDI |
29 |
17 |
8 |
156 |
2093 |
10554 |
57 |
0 |
| VCDI |
13 |
15 |
6 |
72 |
1001 |
12207 |
205 |
0 |
|
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