Validation of sea ice concentration - Full domain
Bulletin date: 2023-11-30
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-11-24:
| 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 |
78019 |
13948 |
193 |
268 |
219 |
11 |
0 |
0 |
| OW |
995 |
1603 |
214 |
311 |
180 |
61 |
4 |
0 |
| VODI |
2856 |
933 |
200 |
451 |
447 |
186 |
38 |
0 |
| ODI |
535 |
420 |
173 |
324 |
348 |
252 |
50 |
0 |
| CDI |
0 |
186 |
153 |
577 |
947 |
1755 |
182 |
0 |
| VCDI |
0 |
110 |
70 |
236 |
666 |
6234 |
29717 |
36738 |
|
...date precedes bulletin
|
Date: 2023-11-26:
| 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 |
76315 |
14850 |
245 |
341 |
122 |
6 |
0 |
0 |
| OW |
1051 |
1642 |
196 |
407 |
190 |
103 |
0 |
0 |
| VODI |
2800 |
893 |
242 |
447 |
516 |
281 |
18 |
0 |
| ODI |
614 |
380 |
163 |
353 |
412 |
324 |
18 |
0 |
| CDI |
0 |
244 |
129 |
565 |
846 |
1509 |
314 |
1 |
| VCDI |
0 |
202 |
98 |
311 |
694 |
6083 |
26622 |
40263 |
|
...date precedes bulletin
|
Date: 2023-11-28:
| 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 |
76452 |
13911 |
350 |
468 |
183 |
30 |
0 |
0 |
| OW |
992 |
1956 |
290 |
445 |
234 |
78 |
0 |
0 |
| VODI |
2797 |
624 |
283 |
666 |
515 |
224 |
4 |
0 |
| ODI |
600 |
143 |
115 |
421 |
786 |
603 |
17 |
0 |
| CDI |
0 |
120 |
79 |
276 |
1116 |
2351 |
449 |
1 |
| VCDI |
0 |
140 |
56 |
139 |
603 |
7165 |
28533 |
36595 |
|
...date precedes bulletin
|
Date: 2023-11-30:
| 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 |
75333 |
13868 |
376 |
672 |
247 |
45 |
0 |
0 |
| OW |
1070 |
1972 |
305 |
382 |
355 |
125 |
4 |
0 |
| VODI |
2735 |
794 |
298 |
600 |
406 |
348 |
52 |
0 |
| ODI |
666 |
216 |
117 |
558 |
645 |
545 |
58 |
0 |
| CDI |
0 |
139 |
90 |
323 |
927 |
2000 |
583 |
0 |
| VCDI |
0 |
27 |
35 |
163 |
656 |
5620 |
35543 |
31912 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
75319 |
13944 |
388 |
702 |
292 |
46 |
0 |
0 |
| OW |
1082 |
1852 |
300 |
351 |
312 |
139 |
6 |
0 |
| VODI |
2742 |
828 |
292 |
621 |
435 |
346 |
54 |
0 |
| ODI |
661 |
238 |
123 |
549 |
609 |
497 |
48 |
0 |
| CDI |
0 |
126 |
82 |
309 |
933 |
2058 |
616 |
0 |
| VCDI |
0 |
28 |
36 |
166 |
655 |
5597 |
35516 |
31912 |
|
Date: 2023-12-02:
| 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 |
73308 |
13946 |
533 |
755 |
217 |
78 |
0 |
0 |
| OW |
926 |
1997 |
347 |
830 |
364 |
123 |
1 |
0 |
| VODI |
2522 |
672 |
289 |
876 |
654 |
556 |
34 |
0 |
| ODI |
1024 |
217 |
153 |
438 |
512 |
798 |
76 |
0 |
| CDI |
0 |
117 |
58 |
242 |
523 |
2065 |
734 |
0 |
| VCDI |
0 |
40 |
31 |
147 |
709 |
4753 |
31115 |
38030 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
73362 |
14100 |
575 |
873 |
235 |
74 |
0 |
0 |
| OW |
1005 |
1814 |
309 |
725 |
343 |
150 |
1 |
0 |
| VODI |
2653 |
680 |
280 |
842 |
663 |
544 |
34 |
0 |
| ODI |
760 |
256 |
159 |
460 |
481 |
750 |
77 |
0 |
| CDI |
0 |
107 |
61 |
251 |
565 |
2121 |
766 |
0 |
| VCDI |
0 |
32 |
27 |
137 |
692 |
4734 |
31082 |
38030 |
|
Date: 2023-12-04:
| 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 |
72779 |
14556 |
325 |
339 |
132 |
36 |
0 |
0 |
| OW |
977 |
1922 |
454 |
613 |
102 |
20 |
0 |
0 |
| VODI |
2456 |
422 |
419 |
1682 |
691 |
127 |
5 |
0 |
| ODI |
1102 |
30 |
37 |
386 |
1445 |
592 |
23 |
0 |
| CDI |
0 |
28 |
18 |
112 |
686 |
2499 |
486 |
0 |
| VCDI |
0 |
0 |
0 |
19 |
252 |
4400 |
31578 |
39060 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
72748 |
14044 |
405 |
563 |
212 |
53 |
0 |
0 |
| OW |
1006 |
1990 |
351 |
664 |
189 |
90 |
3 |
0 |
| VODI |
2457 |
634 |
332 |
1129 |
764 |
374 |
42 |
0 |
| ODI |
1103 |
158 |
84 |
456 |
959 |
531 |
103 |
0 |
| CDI |
0 |
108 |
65 |
244 |
693 |
1633 |
896 |
1 |
| VCDI |
0 |
24 |
16 |
95 |
491 |
4993 |
31048 |
39059 |
|
Date: 2023-12-06:
| 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 |
71706 |
14935 |
467 |
419 |
136 |
30 |
0 |
0 |
| OW |
1037 |
1632 |
394 |
691 |
244 |
54 |
0 |
0 |
| VODI |
2408 |
388 |
331 |
1365 |
875 |
257 |
19 |
0 |
| ODI |
1170 |
51 |
46 |
342 |
1084 |
584 |
87 |
0 |
| CDI |
0 |
33 |
14 |
143 |
698 |
1926 |
820 |
0 |
| VCDI |
0 |
41 |
23 |
64 |
312 |
4208 |
30029 |
41747 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
71612 |
14081 |
443 |
417 |
215 |
56 |
0 |
0 |
| OW |
1086 |
1937 |
370 |
707 |
253 |
131 |
16 |
0 |
| VODI |
2441 |
728 |
277 |
1102 |
746 |
458 |
113 |
0 |
| ODI |
1182 |
152 |
82 |
411 |
997 |
647 |
148 |
0 |
| CDI |
0 |
98 |
64 |
238 |
616 |
1330 |
924 |
0 |
| VCDI |
0 |
84 |
39 |
149 |
522 |
4437 |
29754 |
41747 |
|
Date: 2023-12-08:
| 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 |
71653 |
14071 |
394 |
411 |
152 |
52 |
2 |
0 |
| OW |
1040 |
1805 |
417 |
621 |
387 |
85 |
0 |
0 |
| VODI |
2409 |
639 |
260 |
1135 |
678 |
389 |
14 |
0 |
| ODI |
1231 |
84 |
53 |
303 |
643 |
900 |
158 |
0 |
| CDI |
0 |
89 |
28 |
124 |
498 |
2120 |
956 |
0 |
| VCDI |
0 |
113 |
48 |
158 |
301 |
3153 |
28693 |
44543 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
71523 |
13182 |
373 |
375 |
123 |
56 |
3 |
0 |
| OW |
1062 |
1923 |
278 |
587 |
317 |
115 |
14 |
0 |
| VODI |
2498 |
1178 |
350 |
957 |
698 |
649 |
101 |
0 |
| ODI |
1250 |
191 |
99 |
427 |
731 |
1111 |
154 |
0 |
| CDI |
0 |
132 |
47 |
239 |
435 |
1448 |
881 |
1 |
| VCDI |
0 |
195 |
53 |
167 |
355 |
3320 |
28670 |
44542 |
|
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