Validation of sea ice concentration - Full domain
Bulletin date: 2023-05-11
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-05-05:
| 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 |
67915 |
16793 |
532 |
867 |
524 |
183 |
45 |
0 |
| OW |
84 |
139 |
98 |
327 |
342 |
141 |
25 |
0 |
| VODI |
0 |
87 |
37 |
271 |
464 |
330 |
109 |
0 |
| ODI |
0 |
55 |
46 |
252 |
560 |
474 |
275 |
0 |
| CDI |
0 |
44 |
32 |
225 |
1279 |
3125 |
1696 |
2 |
| VCDI |
0 |
53 |
27 |
235 |
826 |
7178 |
38968 |
42383 |
|
...date precedes bulletin
|
Date: 2023-05-07:
| 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 |
68659 |
16430 |
520 |
784 |
412 |
124 |
24 |
0 |
| OW |
71 |
170 |
131 |
388 |
350 |
105 |
11 |
0 |
| VODI |
0 |
71 |
47 |
336 |
573 |
306 |
64 |
0 |
| ODI |
0 |
48 |
48 |
215 |
661 |
627 |
201 |
0 |
| CDI |
0 |
51 |
69 |
192 |
1076 |
2758 |
1825 |
2 |
| VCDI |
0 |
111 |
59 |
239 |
1030 |
7137 |
40067 |
41056 |
|
...date precedes bulletin
|
Date: 2023-05-09:
| 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 |
69320 |
16547 |
431 |
613 |
240 |
81 |
5 |
0 |
| OW |
71 |
259 |
160 |
367 |
236 |
42 |
2 |
0 |
| VODI |
0 |
109 |
90 |
495 |
597 |
146 |
17 |
0 |
| ODI |
0 |
41 |
55 |
238 |
889 |
626 |
79 |
0 |
| CDI |
0 |
75 |
68 |
264 |
1405 |
3495 |
1223 |
16 |
| VCDI |
0 |
44 |
36 |
255 |
864 |
6839 |
41770 |
38938 |
|
...date precedes bulletin
|
Date: 2023-05-11:
| 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 |
70724 |
15402 |
411 |
543 |
216 |
103 |
8 |
0 |
| OW |
67 |
332 |
167 |
369 |
227 |
64 |
6 |
0 |
| VODI |
0 |
133 |
136 |
472 |
514 |
194 |
33 |
0 |
| ODI |
0 |
25 |
49 |
308 |
840 |
532 |
99 |
0 |
| CDI |
0 |
52 |
50 |
248 |
1413 |
3376 |
1478 |
14 |
| VCDI |
0 |
44 |
58 |
287 |
803 |
8679 |
39324 |
39248 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
70724 |
15431 |
434 |
614 |
265 |
108 |
7 |
0 |
| OW |
67 |
292 |
144 |
315 |
233 |
75 |
9 |
0 |
| VODI |
0 |
142 |
130 |
423 |
470 |
196 |
32 |
0 |
| ODI |
0 |
27 |
55 |
315 |
816 |
518 |
92 |
0 |
| CDI |
0 |
56 |
57 |
286 |
1460 |
3459 |
1600 |
12 |
| VCDI |
0 |
40 |
51 |
274 |
769 |
8592 |
39208 |
39250 |
|
Date: 2023-05-13:
| 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 |
70391 |
15740 |
424 |
595 |
242 |
104 |
54 |
0 |
| OW |
59 |
354 |
150 |
418 |
269 |
93 |
37 |
0 |
| VODI |
0 |
181 |
110 |
432 |
574 |
269 |
62 |
0 |
| ODI |
0 |
77 |
60 |
311 |
617 |
667 |
262 |
0 |
| CDI |
0 |
53 |
51 |
322 |
1347 |
2530 |
1711 |
9 |
| VCDI |
0 |
131 |
70 |
334 |
973 |
8274 |
39046 |
39645 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
70391 |
15771 |
452 |
680 |
288 |
106 |
57 |
0 |
| OW |
59 |
307 |
125 |
353 |
274 |
103 |
39 |
0 |
| VODI |
0 |
186 |
100 |
389 |
503 |
255 |
55 |
0 |
| ODI |
0 |
88 |
64 |
301 |
668 |
736 |
240 |
0 |
| CDI |
0 |
63 |
56 |
364 |
1320 |
2464 |
1701 |
8 |
| VCDI |
0 |
121 |
68 |
325 |
969 |
8273 |
39080 |
39646 |
|
Date: 2023-05-15:
| 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 |
70014 |
16361 |
421 |
540 |
218 |
76 |
26 |
0 |
| OW |
56 |
422 |
248 |
446 |
204 |
58 |
12 |
0 |
| VODI |
0 |
204 |
154 |
780 |
724 |
135 |
22 |
0 |
| ODI |
0 |
104 |
60 |
389 |
1170 |
721 |
124 |
0 |
| CDI |
0 |
65 |
41 |
280 |
1517 |
4400 |
1481 |
1 |
| VCDI |
0 |
10 |
17 |
81 |
430 |
8923 |
42987 |
33126 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
70012 |
16173 |
471 |
703 |
339 |
112 |
42 |
0 |
| OW |
58 |
375 |
149 |
360 |
236 |
94 |
20 |
0 |
| VODI |
0 |
201 |
124 |
439 |
602 |
246 |
90 |
0 |
| ODI |
0 |
106 |
61 |
336 |
659 |
585 |
374 |
0 |
| CDI |
0 |
143 |
52 |
354 |
1326 |
2182 |
1858 |
2 |
| VCDI |
0 |
168 |
84 |
324 |
1101 |
11094 |
42268 |
33125 |
|
Date: 2023-05-17:
| 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 |
70821 |
16316 |
457 |
571 |
227 |
75 |
17 |
0 |
| OW |
54 |
413 |
184 |
477 |
240 |
40 |
17 |
0 |
| VODI |
0 |
265 |
178 |
574 |
714 |
207 |
61 |
0 |
| ODI |
0 |
127 |
72 |
350 |
840 |
455 |
226 |
0 |
| CDI |
0 |
89 |
49 |
347 |
1455 |
3517 |
1705 |
0 |
| VCDI |
0 |
7 |
19 |
188 |
1024 |
7892 |
40987 |
35791 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
70819 |
15800 |
423 |
639 |
329 |
107 |
47 |
0 |
| OW |
56 |
481 |
117 |
343 |
253 |
84 |
21 |
0 |
| VODI |
0 |
335 |
145 |
376 |
545 |
265 |
170 |
0 |
| ODI |
0 |
211 |
112 |
321 |
610 |
486 |
411 |
0 |
| CDI |
0 |
216 |
94 |
488 |
1290 |
2078 |
1713 |
18 |
| VCDI |
0 |
174 |
68 |
340 |
1473 |
9166 |
40651 |
35773 |
|
Date: 2023-05-19:
| 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 |
70987 |
16064 |
438 |
632 |
296 |
89 |
9 |
0 |
| OW |
62 |
437 |
232 |
511 |
348 |
99 |
22 |
0 |
| VODI |
0 |
319 |
159 |
567 |
717 |
294 |
130 |
0 |
| ODI |
0 |
109 |
91 |
366 |
880 |
579 |
282 |
0 |
| CDI |
0 |
100 |
74 |
363 |
1388 |
3491 |
2357 |
0 |
| VCDI |
0 |
34 |
42 |
257 |
1140 |
9284 |
48171 |
25628 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
70987 |
15692 |
434 |
692 |
413 |
137 |
25 |
0 |
| OW |
62 |
455 |
131 |
338 |
283 |
155 |
34 |
0 |
| VODI |
0 |
368 |
164 |
398 |
496 |
314 |
263 |
0 |
| ODI |
0 |
186 |
127 |
399 |
678 |
517 |
559 |
1 |
| CDI |
0 |
172 |
74 |
421 |
1430 |
2304 |
2465 |
10 |
| VCDI |
0 |
190 |
106 |
448 |
1469 |
10409 |
47625 |
25617 |
|
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