Validation of sea ice concentration - Full domain
Bulletin date: 2023-04-06
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-03-31:
| 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 |
66198 |
16233 |
655 |
1104 |
438 |
49 |
0 |
0 |
| OW |
92 |
149 |
102 |
501 |
276 |
84 |
3 |
0 |
| VODI |
0 |
68 |
25 |
374 |
455 |
141 |
61 |
0 |
| ODI |
0 |
21 |
2 |
137 |
510 |
257 |
102 |
0 |
| CDI |
0 |
0 |
1 |
59 |
595 |
842 |
358 |
4 |
| VCDI |
0 |
0 |
0 |
1 |
343 |
3372 |
18081 |
75355 |
|
...date precedes bulletin
|
Date: 2023-04-02:
| 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 |
65945 |
16689 |
606 |
1055 |
470 |
72 |
1 |
0 |
| OW |
55 |
208 |
138 |
447 |
305 |
92 |
18 |
0 |
| VODI |
0 |
50 |
66 |
351 |
449 |
171 |
86 |
0 |
| ODI |
0 |
12 |
17 |
184 |
434 |
279 |
100 |
0 |
| CDI |
0 |
0 |
1 |
85 |
453 |
802 |
379 |
33 |
| VCDI |
0 |
0 |
0 |
6 |
383 |
3581 |
19004 |
74021 |
|
...date precedes bulletin
|
Date: 2023-04-04:
| 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 |
65910 |
16617 |
810 |
1116 |
311 |
30 |
0 |
0 |
| OW |
53 |
94 |
87 |
615 |
302 |
50 |
0 |
0 |
| VODI |
0 |
19 |
28 |
457 |
489 |
110 |
7 |
0 |
| ODI |
0 |
0 |
3 |
135 |
529 |
211 |
40 |
0 |
| CDI |
0 |
0 |
0 |
44 |
514 |
667 |
199 |
129 |
| VCDI |
0 |
0 |
0 |
24 |
407 |
3974 |
17632 |
75435 |
|
...date precedes bulletin
|
Date: 2023-04-06:
| 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 |
66675 |
16272 |
631 |
1029 |
328 |
56 |
3 |
0 |
| OW |
53 |
171 |
128 |
465 |
269 |
67 |
14 |
0 |
| VODI |
0 |
45 |
73 |
385 |
446 |
122 |
30 |
0 |
| ODI |
0 |
3 |
12 |
191 |
412 |
223 |
61 |
0 |
| CDI |
0 |
0 |
3 |
149 |
509 |
375 |
301 |
19 |
| VCDI |
0 |
0 |
0 |
104 |
605 |
3916 |
18941 |
73962 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
66675 |
16294 |
626 |
1018 |
335 |
60 |
3 |
0 |
| OW |
53 |
149 |
130 |
446 |
253 |
70 |
12 |
0 |
| VODI |
0 |
45 |
76 |
411 |
420 |
118 |
33 |
0 |
| ODI |
0 |
3 |
11 |
193 |
434 |
217 |
62 |
2 |
| CDI |
0 |
0 |
4 |
138 |
499 |
374 |
307 |
18 |
| VCDI |
0 |
0 |
0 |
117 |
628 |
3920 |
18933 |
73961 |
|
Date: 2023-04-08:
| 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 |
66476 |
16367 |
672 |
1171 |
361 |
33 |
0 |
0 |
| OW |
52 |
198 |
83 |
457 |
314 |
57 |
0 |
0 |
| VODI |
0 |
71 |
67 |
332 |
501 |
161 |
0 |
0 |
| ODI |
0 |
16 |
20 |
199 |
441 |
255 |
20 |
0 |
| CDI |
0 |
8 |
7 |
133 |
550 |
573 |
229 |
29 |
| VCDI |
0 |
4 |
8 |
82 |
581 |
5400 |
21240 |
69880 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
66476 |
16365 |
683 |
1180 |
386 |
34 |
0 |
0 |
| OW |
52 |
184 |
63 |
430 |
267 |
63 |
0 |
0 |
| VODI |
0 |
87 |
71 |
329 |
498 |
174 |
2 |
0 |
| ODI |
0 |
18 |
24 |
202 |
439 |
244 |
24 |
0 |
| CDI |
0 |
5 |
8 |
135 |
513 |
520 |
213 |
24 |
| VCDI |
0 |
5 |
8 |
98 |
645 |
5444 |
21250 |
69885 |
|
Date: 2023-04-10:
| 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 |
66587 |
15991 |
700 |
1339 |
329 |
16 |
0 |
0 |
| OW |
52 |
207 |
94 |
521 |
314 |
46 |
0 |
0 |
| VODI |
0 |
57 |
60 |
374 |
571 |
132 |
1 |
0 |
| ODI |
0 |
24 |
17 |
177 |
645 |
325 |
27 |
4 |
| CDI |
0 |
25 |
4 |
69 |
539 |
1329 |
445 |
42 |
| VCDI |
0 |
19 |
7 |
41 |
350 |
5807 |
23165 |
66596 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
66587 |
15936 |
664 |
1446 |
502 |
60 |
0 |
0 |
| OW |
52 |
213 |
86 |
351 |
296 |
115 |
1 |
0 |
| VODI |
0 |
101 |
79 |
284 |
462 |
209 |
33 |
0 |
| ODI |
0 |
33 |
28 |
223 |
380 |
335 |
78 |
14 |
| CDI |
0 |
28 |
13 |
144 |
574 |
1071 |
444 |
99 |
| VCDI |
0 |
12 |
12 |
73 |
534 |
5865 |
23082 |
66529 |
|
Date: 2023-04-12:
| 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 |
66556 |
16335 |
660 |
1345 |
356 |
40 |
0 |
0 |
| OW |
52 |
146 |
93 |
491 |
337 |
76 |
3 |
0 |
| VODI |
0 |
42 |
60 |
337 |
603 |
177 |
25 |
0 |
| ODI |
0 |
14 |
15 |
174 |
527 |
309 |
43 |
0 |
| CDI |
0 |
23 |
6 |
93 |
596 |
1400 |
539 |
33 |
| VCDI |
0 |
5 |
6 |
30 |
358 |
5419 |
22862 |
66862 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
66556 |
16159 |
620 |
1329 |
474 |
111 |
0 |
0 |
| OW |
52 |
232 |
86 |
376 |
299 |
114 |
23 |
0 |
| VODI |
0 |
100 |
64 |
313 |
470 |
257 |
46 |
0 |
| ODI |
0 |
37 |
40 |
214 |
392 |
348 |
103 |
1 |
| CDI |
0 |
25 |
20 |
170 |
671 |
1117 |
626 |
42 |
| VCDI |
0 |
12 |
10 |
68 |
471 |
5474 |
22674 |
66852 |
|
Date: 2023-04-14:
| 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 |
66960 |
16381 |
693 |
1214 |
343 |
35 |
4 |
0 |
| OW |
52 |
151 |
116 |
434 |
383 |
64 |
13 |
0 |
| VODI |
0 |
53 |
66 |
362 |
512 |
168 |
26 |
0 |
| ODI |
0 |
21 |
22 |
165 |
502 |
279 |
47 |
0 |
| CDI |
0 |
13 |
13 |
121 |
512 |
1240 |
611 |
75 |
| VCDI |
0 |
4 |
3 |
38 |
389 |
5353 |
15802 |
73808 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
66960 |
16170 |
645 |
1229 |
483 |
88 |
14 |
0 |
| OW |
52 |
243 |
92 |
320 |
330 |
109 |
27 |
0 |
| VODI |
0 |
123 |
77 |
277 |
451 |
267 |
49 |
0 |
| ODI |
0 |
58 |
58 |
229 |
342 |
308 |
78 |
1 |
| CDI |
0 |
26 |
27 |
183 |
514 |
872 |
449 |
163 |
| VCDI |
0 |
3 |
14 |
96 |
521 |
5495 |
15886 |
73719 |
|
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