Validation of sea ice concentration - Full domain
Bulletin date: 2024-03-21
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-03-15:
| 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 |
56468 |
13967 |
165 |
162 |
24 |
1 |
0 |
0 |
| OW |
701 |
1466 |
274 |
417 |
161 |
16 |
0 |
0 |
| VODI |
1747 |
525 |
203 |
530 |
382 |
106 |
11 |
0 |
| ODI |
1874 |
70 |
80 |
404 |
559 |
287 |
27 |
0 |
| CDI |
0 |
25 |
31 |
212 |
756 |
2201 |
1452 |
4 |
| VCDI |
0 |
10 |
10 |
79 |
558 |
3784 |
31523 |
59538 |
|
...date precedes bulletin
|
Date: 2024-03-17:
| 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 |
55198 |
14459 |
373 |
282 |
68 |
0 |
0 |
0 |
| OW |
694 |
1495 |
251 |
357 |
199 |
51 |
3 |
0 |
| VODI |
1740 |
601 |
202 |
448 |
330 |
146 |
21 |
0 |
| ODI |
1885 |
152 |
118 |
283 |
565 |
440 |
28 |
2 |
| CDI |
0 |
92 |
62 |
361 |
789 |
2020 |
1345 |
35 |
| VCDI |
0 |
51 |
45 |
181 |
656 |
3489 |
31743 |
59550 |
|
...date precedes bulletin
|
Date: 2024-03-19:
| 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 |
55948 |
14448 |
172 |
114 |
45 |
2 |
0 |
0 |
| OW |
724 |
1484 |
319 |
358 |
131 |
47 |
5 |
0 |
| VODI |
1739 |
353 |
243 |
575 |
332 |
116 |
18 |
0 |
| ODI |
1886 |
72 |
86 |
331 |
515 |
391 |
65 |
0 |
| CDI |
0 |
29 |
27 |
220 |
522 |
1629 |
1235 |
25 |
| VCDI |
0 |
11 |
19 |
178 |
879 |
2682 |
31153 |
61682 |
|
...date precedes bulletin
|
Date: 2024-03-21:
| 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 |
56550 |
13598 |
239 |
121 |
32 |
1 |
2 |
0 |
| OW |
729 |
1448 |
286 |
351 |
119 |
33 |
0 |
0 |
| VODI |
1745 |
425 |
227 |
510 |
314 |
151 |
20 |
0 |
| ODI |
1878 |
110 |
96 |
313 |
480 |
416 |
113 |
0 |
| CDI |
0 |
75 |
62 |
211 |
613 |
1465 |
1546 |
12 |
| VCDI |
0 |
37 |
35 |
171 |
667 |
2903 |
34420 |
58286 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
56562 |
13548 |
241 |
125 |
31 |
3 |
2 |
0 |
| OW |
717 |
1461 |
272 |
329 |
127 |
33 |
0 |
0 |
| VODI |
1745 |
466 |
237 |
513 |
293 |
143 |
21 |
0 |
| ODI |
1878 |
114 |
95 |
332 |
491 |
419 |
116 |
0 |
| CDI |
0 |
69 |
66 |
211 |
607 |
1464 |
1687 |
14 |
| VCDI |
0 |
35 |
34 |
167 |
676 |
2907 |
34275 |
58284 |
|
Date: 2024-03-23:
| 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 |
56746 |
13264 |
53 |
68 |
42 |
0 |
0 |
0 |
| OW |
730 |
1498 |
234 |
298 |
119 |
17 |
4 |
0 |
| VODI |
1747 |
610 |
203 |
477 |
326 |
140 |
43 |
0 |
| ODI |
1874 |
233 |
86 |
302 |
411 |
467 |
186 |
0 |
| CDI |
0 |
210 |
90 |
274 |
509 |
1060 |
1802 |
1 |
| VCDI |
0 |
37 |
43 |
226 |
609 |
2617 |
29935 |
63219 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
56746 |
13239 |
64 |
74 |
40 |
0 |
0 |
0 |
| OW |
730 |
1478 |
209 |
294 |
128 |
25 |
7 |
0 |
| VODI |
1747 |
632 |
214 |
460 |
311 |
138 |
43 |
0 |
| ODI |
1874 |
276 |
87 |
307 |
408 |
471 |
189 |
0 |
| CDI |
0 |
203 |
97 |
287 |
515 |
1055 |
1896 |
2 |
| VCDI |
0 |
24 |
38 |
223 |
614 |
2612 |
29835 |
63218 |
|
Date: 2024-03-25:
| 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 |
56481 |
13769 |
137 |
52 |
14 |
18 |
0 |
0 |
| OW |
715 |
1490 |
252 |
208 |
36 |
19 |
0 |
0 |
| VODI |
1753 |
372 |
306 |
676 |
335 |
75 |
12 |
0 |
| ODI |
1874 |
77 |
90 |
335 |
625 |
334 |
55 |
0 |
| CDI |
0 |
45 |
47 |
233 |
799 |
1563 |
900 |
1 |
| VCDI |
0 |
2 |
4 |
44 |
287 |
2695 |
31792 |
62288 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
56516 |
13235 |
167 |
127 |
32 |
1 |
0 |
0 |
| OW |
684 |
1477 |
181 |
252 |
155 |
63 |
5 |
0 |
| VODI |
1739 |
579 |
202 |
392 |
334 |
145 |
62 |
0 |
| ODI |
1884 |
273 |
139 |
285 |
397 |
461 |
139 |
0 |
| CDI |
0 |
171 |
124 |
371 |
724 |
1149 |
1756 |
4 |
| VCDI |
0 |
20 |
23 |
121 |
454 |
2885 |
30797 |
62285 |
|
Date: 2024-03-27:
| 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 |
56402 |
13591 |
85 |
80 |
21 |
2 |
0 |
0 |
| OW |
696 |
1338 |
252 |
280 |
66 |
29 |
12 |
0 |
| VODI |
1740 |
384 |
186 |
526 |
419 |
79 |
4 |
0 |
| ODI |
1885 |
89 |
89 |
246 |
470 |
455 |
81 |
0 |
| CDI |
0 |
47 |
46 |
285 |
802 |
1594 |
1887 |
0 |
| VCDI |
0 |
11 |
10 |
64 |
540 |
2905 |
36582 |
56530 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
56432 |
13200 |
142 |
190 |
35 |
6 |
0 |
0 |
| OW |
666 |
1289 |
164 |
310 |
172 |
53 |
14 |
0 |
| VODI |
1735 |
576 |
156 |
285 |
399 |
160 |
59 |
0 |
| ODI |
1890 |
242 |
112 |
284 |
335 |
444 |
237 |
0 |
| CDI |
0 |
135 |
79 |
323 |
747 |
1136 |
2252 |
0 |
| VCDI |
0 |
18 |
15 |
89 |
630 |
3265 |
36004 |
56530 |
|
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 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
56090 |
13379 |
136 |
155 |
50 |
0 |
1 |
0 |
| OW |
658 |
1258 |
175 |
361 |
182 |
32 |
9 |
0 |
| VODI |
1735 |
647 |
139 |
284 |
360 |
206 |
36 |
0 |
| ODI |
1890 |
291 |
118 |
248 |
302 |
439 |
193 |
0 |
| CDI |
0 |
196 |
115 |
447 |
931 |
1447 |
2220 |
2 |
| VCDI |
0 |
1 |
11 |
114 |
492 |
3223 |
32865 |
59372 |
|
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