Validation of sea ice concentration - American sector
Bulletin date: 2024-07-25
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
20391 |
6145 |
60 |
11 |
0 |
0 |
0 |
0 |
| OW |
7 |
1471 |
326 |
486 |
45 |
5 |
0 |
0 |
| VODI |
5 |
218 |
210 |
2613 |
1027 |
18 |
0 |
0 |
| ODI |
2 |
6 |
0 |
663 |
3781 |
101 |
0 |
0 |
| CDI |
8 |
83 |
5 |
118 |
5479 |
14913 |
311 |
0 |
| VCDI |
0 |
2 |
1 |
4 |
941 |
1587 |
188 |
0 |
|
...date precedes bulletin
|
Date: 2024-07-21:
| 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 |
20472 |
6253 |
39 |
20 |
0 |
0 |
0 |
0 |
| OW |
7 |
1499 |
331 |
604 |
54 |
0 |
0 |
0 |
| VODI |
4 |
268 |
211 |
3181 |
775 |
0 |
0 |
0 |
| ODI |
2 |
7 |
1 |
484 |
3332 |
65 |
0 |
0 |
| CDI |
6 |
144 |
5 |
63 |
5246 |
14072 |
464 |
0 |
| VCDI |
0 |
28 |
5 |
55 |
998 |
2431 |
105 |
0 |
|
...date precedes bulletin
|
Date: 2024-07-23:
| 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 |
20710 |
6852 |
36 |
59 |
4 |
0 |
0 |
0 |
| OW |
6 |
1230 |
392 |
620 |
40 |
0 |
0 |
0 |
| VODI |
1 |
99 |
124 |
3132 |
839 |
0 |
0 |
0 |
| ODI |
0 |
64 |
0 |
474 |
6444 |
319 |
0 |
0 |
| CDI |
0 |
113 |
13 |
74 |
4291 |
10945 |
1056 |
0 |
| VCDI |
0 |
1 |
0 |
1 |
824 |
1282 |
1186 |
0 |
|
...date precedes bulletin
|
Date: 2024-07-25:
| 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 |
21168 |
6577 |
54 |
58 |
11 |
0 |
0 |
0 |
| OW |
6 |
1592 |
383 |
518 |
40 |
0 |
0 |
0 |
| VODI |
1 |
238 |
292 |
3509 |
345 |
0 |
0 |
0 |
| ODI |
0 |
64 |
0 |
660 |
5900 |
1141 |
0 |
0 |
| CDI |
0 |
117 |
9 |
73 |
2624 |
9952 |
1814 |
0 |
| VCDI |
0 |
1 |
1 |
51 |
1040 |
2230 |
762 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
21168 |
6630 |
54 |
62 |
4 |
0 |
0 |
0 |
| OW |
6 |
1474 |
372 |
559 |
38 |
0 |
0 |
0 |
| VODI |
1 |
279 |
303 |
3284 |
432 |
0 |
0 |
0 |
| ODI |
0 |
70 |
0 |
839 |
5822 |
1189 |
7 |
0 |
| CDI |
0 |
135 |
9 |
68 |
2621 |
9214 |
1726 |
0 |
| VCDI |
0 |
1 |
1 |
57 |
1043 |
2920 |
843 |
0 |
|
Date: 2024-07-27:
| 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 |
21131 |
6734 |
73 |
120 |
1 |
0 |
0 |
0 |
| OW |
83 |
1689 |
466 |
762 |
50 |
0 |
0 |
0 |
| VODI |
0 |
263 |
282 |
3034 |
645 |
0 |
0 |
0 |
| ODI |
0 |
62 |
3 |
724 |
4937 |
1497 |
12 |
0 |
| CDI |
0 |
125 |
0 |
136 |
2658 |
11685 |
1143 |
0 |
| VCDI |
0 |
19 |
1 |
89 |
857 |
1307 |
643 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
21142 |
6798 |
69 |
127 |
1 |
0 |
0 |
0 |
| OW |
68 |
1580 |
463 |
720 |
36 |
0 |
0 |
0 |
| VODI |
4 |
278 |
289 |
2964 |
604 |
1 |
0 |
0 |
| ODI |
0 |
73 |
3 |
834 |
4987 |
1692 |
6 |
0 |
| CDI |
0 |
135 |
0 |
131 |
2672 |
11394 |
1215 |
0 |
| VCDI |
0 |
28 |
1 |
89 |
848 |
1402 |
577 |
0 |
|
Date: 2024-07-29:
| 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 |
21807 |
7290 |
81 |
128 |
0 |
0 |
0 |
0 |
| OW |
60 |
1635 |
728 |
621 |
10 |
0 |
0 |
0 |
| VODI |
3 |
99 |
36 |
3227 |
383 |
5 |
0 |
0 |
| ODI |
0 |
91 |
3 |
181 |
6519 |
149 |
0 |
0 |
| CDI |
0 |
65 |
14 |
119 |
692 |
12907 |
246 |
2 |
| VCDI |
0 |
1 |
0 |
162 |
616 |
952 |
2275 |
124 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
21782 |
6436 |
74 |
149 |
1 |
0 |
0 |
0 |
| OW |
85 |
1998 |
373 |
639 |
27 |
0 |
0 |
0 |
| VODI |
0 |
450 |
386 |
2531 |
641 |
18 |
0 |
0 |
| ODI |
3 |
94 |
8 |
762 |
4506 |
1641 |
12 |
9 |
| CDI |
0 |
139 |
9 |
155 |
2362 |
11268 |
2048 |
117 |
| VCDI |
0 |
64 |
12 |
202 |
683 |
1086 |
461 |
0 |
|
Date: 2024-07-31:
| 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 |
22147 |
7419 |
59 |
72 |
2 |
0 |
0 |
0 |
| OW |
32 |
1938 |
552 |
523 |
21 |
0 |
0 |
0 |
| VODI |
0 |
171 |
211 |
2769 |
744 |
0 |
0 |
0 |
| ODI |
0 |
87 |
3 |
197 |
5017 |
685 |
0 |
0 |
| CDI |
0 |
77 |
15 |
185 |
1970 |
11246 |
1617 |
0 |
| VCDI |
0 |
25 |
13 |
253 |
487 |
2046 |
648 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
22087 |
6506 |
55 |
60 |
4 |
0 |
0 |
0 |
| OW |
92 |
2178 |
361 |
643 |
32 |
0 |
0 |
0 |
| VODI |
0 |
677 |
383 |
2172 |
769 |
23 |
0 |
0 |
| ODI |
0 |
114 |
12 |
608 |
3857 |
1820 |
18 |
0 |
| CDI |
0 |
157 |
19 |
204 |
3068 |
10859 |
2149 |
0 |
| VCDI |
0 |
85 |
23 |
312 |
511 |
1275 |
98 |
0 |
|
Date: 2024-08-02:
| 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 |
22804 |
7147 |
32 |
20 |
0 |
0 |
0 |
0 |
| OW |
61 |
2483 |
398 |
393 |
9 |
0 |
0 |
0 |
| VODI |
12 |
533 |
274 |
2547 |
468 |
1 |
0 |
0 |
| ODI |
2 |
100 |
10 |
406 |
4473 |
493 |
0 |
0 |
| CDI |
0 |
108 |
23 |
175 |
2990 |
10865 |
1059 |
0 |
| VCDI |
0 |
96 |
45 |
230 |
519 |
1290 |
1165 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
22709 |
6230 |
30 |
9 |
0 |
0 |
0 |
0 |
| OW |
162 |
2669 |
325 |
408 |
24 |
0 |
0 |
0 |
| VODI |
7 |
1084 |
324 |
1963 |
480 |
98 |
0 |
0 |
| ODI |
1 |
135 |
21 |
939 |
3567 |
1802 |
13 |
0 |
| CDI |
0 |
184 |
31 |
209 |
3931 |
9975 |
1905 |
0 |
| VCDI |
0 |
165 |
51 |
243 |
457 |
774 |
306 |
0 |
|
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