Validation of sea ice concentration - Full domain
Bulletin date: 2023-03-16
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-03-10:
| 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 |
58933 |
20119 |
5492 |
447 |
75 |
12 |
17 |
0 |
| OW |
52 |
457 |
249 |
405 |
131 |
13 |
5 |
0 |
| VODI |
0 |
275 |
160 |
448 |
272 |
64 |
5 |
0 |
| ODI |
0 |
112 |
106 |
243 |
328 |
153 |
21 |
0 |
| CDI |
0 |
139 |
99 |
233 |
454 |
579 |
156 |
1 |
| VCDI |
0 |
152 |
193 |
528 |
1527 |
7439 |
38290 |
48664 |
|
...date precedes bulletin
|
Date: 2023-03-12:
| 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 |
61846 |
20625 |
2083 |
493 |
101 |
24 |
22 |
0 |
| OW |
58 |
532 |
206 |
341 |
156 |
51 |
2 |
0 |
| VODI |
2 |
347 |
178 |
347 |
253 |
117 |
11 |
0 |
| ODI |
0 |
208 |
101 |
291 |
267 |
198 |
25 |
0 |
| CDI |
0 |
134 |
49 |
205 |
310 |
625 |
210 |
4 |
| VCDI |
0 |
219 |
110 |
432 |
1279 |
5168 |
33382 |
56036 |
|
...date precedes bulletin
|
Date: 2023-03-14:
| 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 |
59231 |
22278 |
3041 |
538 |
101 |
36 |
23 |
0 |
| OW |
52 |
385 |
286 |
406 |
127 |
46 |
6 |
0 |
| VODI |
0 |
226 |
230 |
459 |
309 |
78 |
14 |
0 |
| ODI |
0 |
141 |
73 |
217 |
378 |
179 |
42 |
0 |
| CDI |
0 |
69 |
63 |
114 |
409 |
751 |
449 |
2 |
| VCDI |
0 |
95 |
229 |
339 |
1220 |
5393 |
28929 |
60084 |
|
...date precedes bulletin
|
Date: 2023-03-16:
| 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 |
62488 |
20723 |
951 |
603 |
218 |
85 |
31 |
0 |
| OW |
52 |
391 |
276 |
358 |
179 |
70 |
23 |
0 |
| VODI |
0 |
196 |
108 |
389 |
353 |
128 |
33 |
0 |
| ODI |
0 |
129 |
46 |
180 |
358 |
270 |
68 |
0 |
| CDI |
0 |
69 |
33 |
102 |
349 |
938 |
528 |
100 |
| VCDI |
0 |
114 |
61 |
195 |
891 |
4625 |
33018 |
57319 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
62488 |
20691 |
968 |
631 |
213 |
84 |
29 |
0 |
| OW |
52 |
413 |
241 |
323 |
188 |
67 |
21 |
0 |
| VODI |
0 |
200 |
128 |
383 |
338 |
123 |
36 |
0 |
| ODI |
0 |
124 |
46 |
180 |
340 |
262 |
68 |
0 |
| CDI |
0 |
78 |
32 |
109 |
353 |
965 |
538 |
93 |
| VCDI |
0 |
116 |
60 |
201 |
916 |
4615 |
33009 |
57326 |
|
Date: 2023-03-18:
| 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 |
61957 |
20981 |
1140 |
601 |
226 |
88 |
60 |
0 |
| OW |
67 |
379 |
211 |
364 |
164 |
84 |
20 |
0 |
| VODI |
0 |
137 |
117 |
323 |
339 |
182 |
38 |
0 |
| ODI |
0 |
97 |
37 |
136 |
372 |
315 |
92 |
12 |
| CDI |
0 |
61 |
24 |
81 |
342 |
816 |
489 |
134 |
| VCDI |
0 |
34 |
43 |
108 |
492 |
4123 |
40931 |
50831 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
61962 |
20992 |
1136 |
637 |
232 |
90 |
62 |
0 |
| OW |
62 |
341 |
197 |
337 |
164 |
83 |
19 |
0 |
| VODI |
0 |
161 |
128 |
309 |
337 |
173 |
34 |
0 |
| ODI |
0 |
88 |
43 |
135 |
363 |
307 |
93 |
12 |
| CDI |
0 |
62 |
24 |
79 |
319 |
816 |
515 |
139 |
| VCDI |
0 |
45 |
44 |
116 |
520 |
4139 |
40907 |
50826 |
|
Date: 2023-03-20:
| 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 |
58668 |
22863 |
2657 |
535 |
178 |
59 |
20 |
0 |
| OW |
56 |
323 |
278 |
389 |
186 |
48 |
7 |
0 |
| VODI |
0 |
165 |
84 |
356 |
366 |
180 |
28 |
0 |
| ODI |
0 |
81 |
32 |
119 |
399 |
365 |
45 |
0 |
| CDI |
0 |
52 |
17 |
52 |
317 |
1008 |
350 |
22 |
| VCDI |
0 |
25 |
34 |
110 |
418 |
3611 |
39405 |
53140 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
58669 |
22790 |
2642 |
622 |
241 |
98 |
33 |
0 |
| OW |
55 |
323 |
232 |
273 |
203 |
77 |
19 |
0 |
| VODI |
0 |
179 |
124 |
312 |
283 |
190 |
33 |
0 |
| ODI |
0 |
97 |
38 |
146 |
300 |
342 |
72 |
1 |
| CDI |
0 |
70 |
22 |
84 |
334 |
886 |
457 |
35 |
| VCDI |
0 |
50 |
44 |
124 |
503 |
3678 |
39241 |
53126 |
|
Date: 2023-03-22:
| 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 |
58819 |
22564 |
2701 |
648 |
217 |
64 |
10 |
0 |
| OW |
56 |
244 |
219 |
360 |
254 |
79 |
12 |
0 |
| VODI |
0 |
192 |
105 |
234 |
344 |
227 |
63 |
0 |
| ODI |
0 |
82 |
69 |
115 |
275 |
333 |
119 |
0 |
| CDI |
0 |
40 |
28 |
113 |
305 |
613 |
430 |
14 |
| VCDI |
0 |
16 |
28 |
103 |
488 |
4090 |
38412 |
53963 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
58818 |
22491 |
2670 |
644 |
282 |
86 |
21 |
0 |
| OW |
57 |
280 |
220 |
292 |
187 |
87 |
17 |
0 |
| VODI |
0 |
182 |
119 |
282 |
281 |
208 |
52 |
0 |
| ODI |
0 |
106 |
73 |
121 |
321 |
319 |
133 |
0 |
| CDI |
0 |
46 |
38 |
116 |
316 |
704 |
547 |
19 |
| VCDI |
0 |
33 |
30 |
118 |
496 |
4002 |
38276 |
53958 |
|
Date: 2023-03-24:
| 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 |
58967 |
22271 |
2534 |
666 |
247 |
88 |
13 |
0 |
| OW |
54 |
333 |
166 |
347 |
245 |
127 |
13 |
0 |
| VODI |
0 |
189 |
99 |
261 |
311 |
232 |
43 |
0 |
| ODI |
0 |
80 |
45 |
132 |
315 |
304 |
111 |
0 |
| CDI |
0 |
35 |
26 |
95 |
406 |
551 |
378 |
34 |
| VCDI |
0 |
4 |
25 |
76 |
707 |
4664 |
33867 |
57987 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
58967 |
22306 |
2515 |
690 |
330 |
128 |
20 |
0 |
| OW |
54 |
311 |
186 |
289 |
204 |
134 |
13 |
0 |
| VODI |
0 |
178 |
97 |
269 |
277 |
259 |
58 |
0 |
| ODI |
0 |
83 |
49 |
140 |
333 |
291 |
174 |
18 |
| CDI |
0 |
31 |
27 |
108 |
380 |
622 |
541 |
76 |
| VCDI |
0 |
3 |
21 |
81 |
707 |
4532 |
33619 |
57927 |
|
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