Validation of sea ice concentration - Full domain
Bulletin date: 2024-04-04
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-03-29:
| 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 |
56089 |
13785 |
54 |
86 |
56 |
8 |
0 |
0 |
| OW |
661 |
1343 |
260 |
316 |
77 |
4 |
1 |
0 |
| VODI |
1741 |
432 |
199 |
479 |
431 |
128 |
19 |
0 |
| ODI |
1882 |
124 |
94 |
279 |
447 |
483 |
104 |
0 |
| CDI |
0 |
77 |
67 |
311 |
761 |
1465 |
1859 |
5 |
| VCDI |
0 |
11 |
20 |
138 |
545 |
3259 |
33341 |
59369 |
|
...date precedes bulletin
|
Date: 2024-03-31:
| 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 |
56147 |
13518 |
99 |
118 |
15 |
1 |
0 |
0 |
| OW |
707 |
1386 |
253 |
279 |
94 |
34 |
4 |
0 |
| VODI |
1746 |
592 |
173 |
453 |
384 |
109 |
17 |
0 |
| ODI |
1875 |
391 |
121 |
317 |
503 |
492 |
50 |
0 |
| CDI |
0 |
151 |
89 |
361 |
792 |
1436 |
1630 |
0 |
| VCDI |
0 |
50 |
47 |
230 |
836 |
3684 |
37665 |
53961 |
|
...date precedes bulletin
|
Date: 2024-04-02:
| 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 |
56345 |
13768 |
68 |
46 |
15 |
3 |
2 |
0 |
| OW |
717 |
1480 |
190 |
206 |
53 |
26 |
11 |
0 |
| VODI |
1741 |
530 |
279 |
621 |
320 |
69 |
22 |
0 |
| ODI |
1882 |
95 |
81 |
405 |
740 |
353 |
91 |
0 |
| CDI |
0 |
71 |
82 |
349 |
893 |
1941 |
1174 |
24 |
| VCDI |
0 |
20 |
19 |
68 |
498 |
3075 |
27420 |
65017 |
|
...date precedes bulletin
|
Date: 2024-04-04:
| 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 |
56038 |
13615 |
59 |
54 |
12 |
2 |
1 |
0 |
| OW |
732 |
1430 |
208 |
209 |
73 |
29 |
11 |
0 |
| VODI |
1747 |
607 |
292 |
569 |
290 |
56 |
10 |
0 |
| ODI |
1874 |
147 |
105 |
468 |
644 |
396 |
125 |
2 |
| CDI |
0 |
65 |
86 |
385 |
906 |
2208 |
2354 |
36 |
| VCDI |
0 |
2 |
3 |
30 |
319 |
2183 |
27400 |
65028 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
56038 |
13667 |
58 |
53 |
13 |
2 |
1 |
0 |
| OW |
732 |
1372 |
198 |
197 |
80 |
31 |
10 |
0 |
| VODI |
1747 |
621 |
303 |
548 |
268 |
54 |
10 |
0 |
| ODI |
1874 |
141 |
108 |
495 |
583 |
347 |
119 |
2 |
| CDI |
0 |
63 |
83 |
390 |
997 |
2264 |
2480 |
47 |
| VCDI |
0 |
2 |
3 |
32 |
303 |
2176 |
27281 |
65017 |
|
Date: 2024-04-06:
| 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 |
56348 |
13366 |
27 |
36 |
8 |
7 |
0 |
0 |
| OW |
732 |
1595 |
183 |
199 |
95 |
27 |
3 |
0 |
| VODI |
1749 |
684 |
297 |
494 |
255 |
62 |
17 |
0 |
| ODI |
1871 |
161 |
118 |
398 |
510 |
331 |
69 |
1 |
| CDI |
0 |
62 |
81 |
385 |
864 |
1921 |
2840 |
16 |
| VCDI |
0 |
7 |
6 |
55 |
343 |
2603 |
31690 |
60294 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
56348 |
13470 |
31 |
38 |
11 |
7 |
0 |
0 |
| OW |
732 |
1480 |
188 |
209 |
100 |
26 |
3 |
0 |
| VODI |
1749 |
698 |
286 |
451 |
227 |
62 |
15 |
0 |
| ODI |
1871 |
149 |
118 |
418 |
493 |
273 |
68 |
1 |
| CDI |
0 |
69 |
82 |
393 |
893 |
2004 |
3027 |
17 |
| VCDI |
0 |
9 |
7 |
58 |
351 |
2579 |
31506 |
60293 |
|
Date: 2024-04-08:
| 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 |
56356 |
13744 |
51 |
70 |
24 |
0 |
0 |
0 |
| OW |
731 |
1563 |
245 |
173 |
37 |
8 |
2 |
0 |
| VODI |
1762 |
380 |
299 |
787 |
313 |
34 |
8 |
0 |
| ODI |
1857 |
35 |
60 |
337 |
876 |
382 |
74 |
2 |
| CDI |
0 |
24 |
15 |
174 |
792 |
2480 |
1215 |
21 |
| VCDI |
0 |
10 |
9 |
61 |
294 |
2867 |
37879 |
54759 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
56356 |
13271 |
48 |
59 |
29 |
8 |
1 |
0 |
| OW |
730 |
1474 |
195 |
201 |
68 |
13 |
5 |
0 |
| VODI |
1751 |
648 |
236 |
517 |
235 |
50 |
23 |
0 |
| ODI |
1869 |
234 |
108 |
365 |
640 |
312 |
67 |
2 |
| CDI |
0 |
90 |
71 |
357 |
965 |
2321 |
2685 |
23 |
| VCDI |
0 |
39 |
21 |
103 |
399 |
3067 |
36397 |
54757 |
|
Date: 2024-04-10:
| 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 |
56373 |
13836 |
57 |
62 |
17 |
1 |
1 |
0 |
| OW |
735 |
1386 |
238 |
250 |
77 |
11 |
3 |
0 |
| VODI |
1760 |
371 |
232 |
601 |
396 |
76 |
12 |
0 |
| ODI |
1859 |
60 |
77 |
295 |
456 |
556 |
60 |
0 |
| CDI |
0 |
30 |
40 |
240 |
890 |
2189 |
1696 |
10 |
| VCDI |
0 |
4 |
3 |
68 |
376 |
2815 |
33753 |
58838 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
56375 |
13139 |
58 |
71 |
28 |
4 |
4 |
0 |
| OW |
731 |
1440 |
124 |
161 |
84 |
31 |
2 |
0 |
| VODI |
1747 |
699 |
236 |
454 |
255 |
102 |
24 |
0 |
| ODI |
1874 |
270 |
113 |
319 |
454 |
487 |
129 |
1 |
| CDI |
0 |
126 |
104 |
401 |
916 |
2209 |
2909 |
23 |
| VCDI |
0 |
13 |
12 |
110 |
475 |
2815 |
32457 |
58824 |
|
Date: 2024-04-12:
| 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 |
56738 |
13033 |
58 |
63 |
20 |
0 |
0 |
0 |
| OW |
726 |
1524 |
172 |
196 |
80 |
24 |
5 |
0 |
| VODI |
1762 |
618 |
297 |
508 |
254 |
95 |
52 |
0 |
| ODI |
1854 |
147 |
120 |
447 |
566 |
313 |
157 |
0 |
| CDI |
0 |
70 |
68 |
335 |
1229 |
2393 |
1424 |
0 |
| VCDI |
0 |
3 |
13 |
72 |
573 |
3506 |
35912 |
55383 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
56738 |
12335 |
70 |
79 |
39 |
2 |
0 |
0 |
| OW |
722 |
1448 |
109 |
136 |
70 |
41 |
12 |
0 |
| VODI |
1757 |
942 |
232 |
362 |
163 |
107 |
56 |
0 |
| ODI |
1863 |
442 |
152 |
472 |
487 |
240 |
208 |
0 |
| CDI |
0 |
222 |
147 |
490 |
1348 |
2415 |
2769 |
21 |
| VCDI |
0 |
6 |
18 |
82 |
615 |
3526 |
34505 |
55362 |
|
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