Validation of sea ice concentration - American sector
Bulletin date: 2024-10-31
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-10-25:
| 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 |
28804 |
5756 |
256 |
353 |
104 |
0 |
0 |
0 |
| OW |
27 |
551 |
195 |
621 |
284 |
7 |
0 |
0 |
| VODI |
2 |
42 |
78 |
556 |
504 |
125 |
0 |
0 |
| ODI |
0 |
2 |
3 |
141 |
568 |
318 |
0 |
0 |
| CDI |
0 |
0 |
0 |
71 |
265 |
1142 |
57 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
53 |
2616 |
9178 |
8550 |
|
...date precedes bulletin
|
Date: 2024-10-27:
| 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 |
28255 |
5112 |
135 |
100 |
12 |
0 |
0 |
0 |
| OW |
1 |
739 |
249 |
461 |
167 |
80 |
0 |
0 |
| VODI |
3 |
66 |
92 |
650 |
563 |
257 |
0 |
0 |
| ODI |
0 |
3 |
9 |
126 |
576 |
404 |
10 |
0 |
| CDI |
0 |
0 |
0 |
36 |
394 |
1148 |
301 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
30 |
1248 |
8801 |
11203 |
|
...date precedes bulletin
|
Date: 2024-10-29:
| 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 |
27203 |
5301 |
280 |
134 |
4 |
0 |
0 |
0 |
| OW |
13 |
369 |
228 |
609 |
39 |
1 |
0 |
0 |
| VODI |
3 |
18 |
26 |
767 |
269 |
15 |
0 |
0 |
| ODI |
0 |
0 |
4 |
167 |
753 |
148 |
0 |
0 |
| CDI |
0 |
0 |
0 |
5 |
570 |
1267 |
285 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
11 |
1480 |
8333 |
12929 |
|
...date precedes bulletin
|
Date: 2024-10-31:
| 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 |
26394 |
5021 |
291 |
294 |
15 |
0 |
0 |
0 |
| OW |
11 |
466 |
209 |
634 |
88 |
1 |
0 |
0 |
| VODI |
3 |
73 |
50 |
634 |
390 |
13 |
7 |
0 |
| ODI |
0 |
0 |
5 |
169 |
549 |
132 |
19 |
0 |
| CDI |
0 |
0 |
1 |
45 |
611 |
706 |
169 |
0 |
| VCDI |
0 |
0 |
0 |
7 |
113 |
1984 |
8922 |
13205 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
26396 |
5178 |
317 |
392 |
20 |
1 |
0 |
0 |
| OW |
9 |
323 |
196 |
557 |
85 |
1 |
0 |
0 |
| VODI |
3 |
59 |
39 |
632 |
424 |
13 |
6 |
0 |
| ODI |
0 |
0 |
3 |
159 |
540 |
133 |
18 |
0 |
| CDI |
0 |
0 |
1 |
34 |
530 |
659 |
202 |
0 |
| VCDI |
0 |
0 |
0 |
9 |
167 |
2029 |
8891 |
13205 |
|
Date: 2024-11-02:
| 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 |
24928 |
5061 |
242 |
731 |
32 |
0 |
0 |
0 |
| OW |
13 |
343 |
158 |
974 |
128 |
0 |
0 |
0 |
| VODI |
3 |
90 |
50 |
728 |
379 |
22 |
0 |
0 |
| ODI |
0 |
1 |
6 |
330 |
442 |
99 |
0 |
0 |
| CDI |
0 |
0 |
0 |
226 |
437 |
495 |
85 |
0 |
| VCDI |
0 |
0 |
0 |
1191 |
1430 |
2799 |
7249 |
12559 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24918 |
5189 |
326 |
843 |
61 |
0 |
0 |
0 |
| OW |
23 |
235 |
94 |
896 |
110 |
1 |
0 |
0 |
| VODI |
3 |
70 |
32 |
711 |
431 |
32 |
0 |
0 |
| ODI |
0 |
1 |
4 |
329 |
471 |
116 |
1 |
0 |
| CDI |
0 |
0 |
0 |
210 |
351 |
437 |
85 |
0 |
| VCDI |
0 |
0 |
0 |
1191 |
1424 |
2829 |
7248 |
12559 |
|
Date: 2024-11-04:
| 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 |
24778 |
4226 |
324 |
332 |
5 |
0 |
0 |
0 |
| OW |
36 |
253 |
243 |
746 |
94 |
0 |
0 |
0 |
| VODI |
3 |
18 |
28 |
948 |
444 |
11 |
0 |
0 |
| ODI |
0 |
0 |
0 |
105 |
864 |
145 |
2 |
0 |
| CDI |
0 |
0 |
0 |
22 |
461 |
1219 |
148 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
60 |
2285 |
9315 |
14114 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24700 |
4178 |
412 |
694 |
47 |
0 |
0 |
0 |
| OW |
97 |
257 |
131 |
747 |
317 |
9 |
0 |
0 |
| VODI |
20 |
55 |
33 |
547 |
652 |
188 |
0 |
0 |
| ODI |
0 |
7 |
12 |
91 |
496 |
401 |
18 |
0 |
| CDI |
0 |
0 |
7 |
49 |
296 |
602 |
86 |
0 |
| VCDI |
0 |
0 |
0 |
27 |
120 |
2460 |
9361 |
14114 |
|
Date: 2024-11-06:
| 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 |
24015 |
3692 |
249 |
564 |
177 |
0 |
0 |
0 |
| OW |
17 |
318 |
155 |
690 |
338 |
0 |
0 |
0 |
| VODI |
12 |
69 |
25 |
630 |
700 |
58 |
0 |
0 |
| ODI |
0 |
5 |
2 |
138 |
624 |
242 |
3 |
0 |
| CDI |
0 |
0 |
1 |
33 |
455 |
926 |
44 |
0 |
| VCDI |
0 |
0 |
0 |
9 |
89 |
2442 |
9082 |
15427 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24015 |
3613 |
296 |
612 |
155 |
0 |
0 |
0 |
| OW |
16 |
277 |
96 |
879 |
520 |
32 |
0 |
0 |
| VODI |
12 |
167 |
20 |
381 |
856 |
265 |
0 |
0 |
| ODI |
1 |
22 |
7 |
112 |
467 |
457 |
19 |
0 |
| CDI |
0 |
5 |
10 |
46 |
301 |
775 |
202 |
0 |
| VCDI |
0 |
0 |
3 |
34 |
84 |
2139 |
8908 |
15427 |
|
Date: 2024-11-08:
| 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 |
23548 |
3363 |
274 |
431 |
13 |
0 |
0 |
0 |
| OW |
36 |
324 |
100 |
542 |
506 |
14 |
0 |
0 |
| VODI |
12 |
94 |
28 |
248 |
869 |
372 |
1 |
0 |
| ODI |
1 |
82 |
10 |
37 |
674 |
451 |
12 |
0 |
| CDI |
2 |
23 |
13 |
23 |
218 |
1084 |
95 |
0 |
| VCDI |
0 |
3 |
4 |
42 |
106 |
1506 |
9210 |
16860 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
23563 |
3302 |
257 |
452 |
105 |
2 |
0 |
0 |
| OW |
24 |
322 |
120 |
454 |
750 |
34 |
0 |
0 |
| VODI |
9 |
91 |
9 |
307 |
868 |
557 |
15 |
0 |
| ODI |
3 |
98 |
22 |
45 |
416 |
736 |
60 |
0 |
| CDI |
0 |
44 |
6 |
14 |
143 |
899 |
307 |
0 |
| VCDI |
0 |
32 |
15 |
51 |
104 |
1199 |
8936 |
16860 |
|
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