Validation of sea ice concentration - Full domain
Bulletin date: 2023-04-27
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-04-21:
| 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 |
67654 |
16036 |
690 |
1267 |
356 |
34 |
21 |
0 |
| OW |
60 |
243 |
81 |
461 |
417 |
32 |
4 |
0 |
| VODI |
0 |
116 |
50 |
301 |
605 |
145 |
3 |
0 |
| ODI |
0 |
21 |
24 |
141 |
618 |
394 |
40 |
0 |
| CDI |
0 |
13 |
2 |
149 |
715 |
1189 |
701 |
31 |
| VCDI |
0 |
8 |
0 |
39 |
1121 |
6399 |
24166 |
62701 |
|
...date precedes bulletin
|
Date: 2023-04-23:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2023-04-25:
| 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 |
67393 |
16173 |
722 |
1449 |
507 |
102 |
16 |
0 |
| OW |
59 |
118 |
82 |
408 |
467 |
80 |
1 |
0 |
| VODI |
0 |
80 |
36 |
313 |
592 |
246 |
23 |
6 |
| ODI |
0 |
47 |
25 |
175 |
528 |
527 |
87 |
21 |
| CDI |
0 |
19 |
19 |
175 |
724 |
1617 |
955 |
52 |
| VCDI |
0 |
1 |
2 |
174 |
1399 |
7759 |
29154 |
54715 |
|
...date precedes bulletin
|
Date: 2023-04-27:
| 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 |
67235 |
16387 |
714 |
1492 |
467 |
130 |
7 |
0 |
| OW |
59 |
141 |
83 |
422 |
464 |
84 |
1 |
0 |
| VODI |
0 |
117 |
53 |
271 |
663 |
224 |
51 |
0 |
| ODI |
0 |
67 |
25 |
141 |
559 |
476 |
121 |
0 |
| CDI |
0 |
62 |
11 |
124 |
752 |
1702 |
958 |
7 |
| VCDI |
0 |
38 |
18 |
184 |
1359 |
7587 |
26261 |
57531 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67235 |
16415 |
733 |
1541 |
521 |
145 |
7 |
0 |
| OW |
59 |
137 |
73 |
382 |
429 |
67 |
10 |
0 |
| VODI |
0 |
108 |
44 |
286 |
634 |
239 |
47 |
0 |
| ODI |
0 |
59 |
26 |
126 |
574 |
482 |
128 |
1 |
| CDI |
0 |
68 |
11 |
120 |
803 |
1728 |
936 |
6 |
| VCDI |
0 |
25 |
17 |
179 |
1303 |
7542 |
26271 |
57531 |
|
Date: 2023-04-29:
| 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 |
67688 |
16310 |
744 |
1310 |
478 |
137 |
4 |
0 |
| OW |
74 |
198 |
71 |
474 |
401 |
132 |
1 |
0 |
| VODI |
0 |
136 |
67 |
276 |
543 |
255 |
61 |
0 |
| ODI |
0 |
68 |
22 |
139 |
416 |
479 |
135 |
0 |
| CDI |
0 |
75 |
9 |
134 |
735 |
1549 |
938 |
14 |
| VCDI |
0 |
34 |
17 |
151 |
1462 |
7257 |
27718 |
56336 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67688 |
16350 |
745 |
1372 |
516 |
152 |
4 |
0 |
| OW |
74 |
186 |
77 |
415 |
386 |
112 |
7 |
0 |
| VODI |
0 |
118 |
65 |
290 |
518 |
266 |
58 |
0 |
| ODI |
0 |
66 |
18 |
143 |
430 |
488 |
139 |
5 |
| CDI |
0 |
77 |
8 |
116 |
839 |
1647 |
938 |
21 |
| VCDI |
0 |
24 |
17 |
148 |
1346 |
7144 |
27711 |
56324 |
|
Date: 2023-05-01:
| 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 |
68304 |
16243 |
697 |
1040 |
305 |
89 |
0 |
0 |
| OW |
93 |
128 |
111 |
582 |
270 |
47 |
0 |
0 |
| VODI |
13 |
39 |
32 |
418 |
525 |
114 |
0 |
0 |
| ODI |
0 |
28 |
11 |
161 |
853 |
261 |
24 |
0 |
| CDI |
0 |
0 |
6 |
133 |
1378 |
3734 |
633 |
13 |
| VCDI |
0 |
0 |
0 |
34 |
876 |
5658 |
27047 |
57148 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
68285 |
15981 |
673 |
1250 |
576 |
178 |
0 |
0 |
| OW |
95 |
194 |
84 |
379 |
341 |
143 |
22 |
0 |
| VODI |
13 |
111 |
45 |
281 |
455 |
322 |
74 |
0 |
| ODI |
15 |
58 |
19 |
136 |
423 |
465 |
188 |
1 |
| CDI |
2 |
47 |
16 |
133 |
746 |
1836 |
1180 |
29 |
| VCDI |
0 |
47 |
20 |
189 |
1666 |
6959 |
26240 |
57131 |
|
Date: 2023-05-03:
| 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 |
68143 |
16132 |
742 |
1356 |
456 |
65 |
0 |
0 |
| OW |
91 |
67 |
62 |
464 |
343 |
47 |
1 |
0 |
| VODI |
6 |
42 |
14 |
288 |
682 |
139 |
12 |
0 |
| ODI |
0 |
19 |
12 |
156 |
952 |
346 |
62 |
0 |
| CDI |
0 |
6 |
13 |
137 |
1553 |
3240 |
706 |
31 |
| VCDI |
0 |
0 |
0 |
115 |
956 |
7736 |
29429 |
52427 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
68117 |
15893 |
663 |
1415 |
695 |
121 |
11 |
0 |
| OW |
82 |
174 |
78 |
355 |
389 |
142 |
32 |
0 |
| VODI |
15 |
82 |
65 |
213 |
647 |
343 |
79 |
0 |
| ODI |
20 |
31 |
14 |
163 |
666 |
436 |
152 |
0 |
| CDI |
6 |
43 |
2 |
195 |
1080 |
1845 |
685 |
22 |
| VCDI |
0 |
43 |
21 |
175 |
1465 |
8686 |
29251 |
52436 |
|
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 |
68339 |
15680 |
756 |
1574 |
438 |
72 |
0 |
0 |
| OW |
84 |
57 |
51 |
486 |
441 |
37 |
0 |
0 |
| VODI |
0 |
29 |
11 |
288 |
763 |
192 |
15 |
0 |
| ODI |
0 |
17 |
2 |
188 |
859 |
519 |
77 |
0 |
| CDI |
0 |
9 |
12 |
124 |
1411 |
3740 |
1103 |
4 |
| VCDI |
0 |
0 |
2 |
115 |
839 |
7568 |
30001 |
51145 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
68291 |
15534 |
690 |
1521 |
699 |
130 |
14 |
0 |
| OW |
93 |
120 |
88 |
386 |
460 |
145 |
45 |
0 |
| VODI |
15 |
52 |
32 |
374 |
673 |
403 |
115 |
0 |
| ODI |
23 |
10 |
4 |
181 |
612 |
448 |
213 |
10 |
| CDI |
1 |
29 |
1 |
122 |
1016 |
2187 |
938 |
130 |
| VCDI |
0 |
47 |
19 |
191 |
1291 |
8815 |
29871 |
51009 |
|
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