Validation of sea ice concentration - Full domain
Bulletin date: 2023-02-23
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-02-17:
| 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 |
58420 |
21106 |
5923 |
599 |
149 |
30 |
2 |
0 |
| OW |
51 |
351 |
280 |
325 |
163 |
21 |
7 |
0 |
| VODI |
0 |
229 |
244 |
376 |
337 |
74 |
11 |
0 |
| ODI |
0 |
85 |
145 |
322 |
388 |
168 |
39 |
0 |
| CDI |
0 |
50 |
88 |
279 |
444 |
592 |
165 |
8 |
| VCDI |
0 |
174 |
382 |
979 |
1662 |
5683 |
30843 |
55854 |
|
...date precedes bulletin
|
Date: 2023-02-19:
| 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 |
61558 |
21777 |
1667 |
595 |
162 |
39 |
0 |
0 |
| OW |
52 |
361 |
284 |
340 |
191 |
33 |
5 |
0 |
| VODI |
0 |
277 |
211 |
444 |
311 |
101 |
6 |
0 |
| ODI |
0 |
117 |
113 |
319 |
450 |
179 |
14 |
0 |
| CDI |
0 |
84 |
61 |
250 |
704 |
515 |
160 |
8 |
| VCDI |
0 |
282 |
232 |
688 |
1873 |
7169 |
32059 |
53357 |
|
...date precedes bulletin
|
Date: 2023-02-21:
| 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 |
58431 |
23809 |
2355 |
996 |
126 |
18 |
26 |
0 |
| OW |
52 |
275 |
218 |
437 |
202 |
13 |
7 |
0 |
| VODI |
0 |
157 |
141 |
487 |
461 |
80 |
14 |
0 |
| ODI |
0 |
83 |
78 |
376 |
595 |
198 |
19 |
0 |
| CDI |
0 |
53 |
41 |
216 |
748 |
661 |
185 |
10 |
| VCDI |
0 |
10 |
73 |
336 |
1220 |
6120 |
28096 |
59625 |
|
...date precedes bulletin
|
Date: 2023-02-23:
| 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 |
52841 |
26878 |
5013 |
691 |
91 |
11 |
17 |
0 |
| OW |
52 |
332 |
267 |
362 |
167 |
7 |
8 |
0 |
| VODI |
0 |
204 |
169 |
473 |
305 |
61 |
58 |
0 |
| ODI |
0 |
109 |
75 |
316 |
469 |
158 |
44 |
0 |
| CDI |
0 |
87 |
53 |
214 |
731 |
603 |
289 |
1 |
| VCDI |
0 |
109 |
99 |
344 |
1229 |
6101 |
32813 |
55197 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
52841 |
26878 |
5024 |
735 |
105 |
11 |
15 |
0 |
| OW |
52 |
345 |
271 |
365 |
166 |
9 |
10 |
0 |
| VODI |
0 |
190 |
150 |
446 |
321 |
62 |
58 |
0 |
| ODI |
0 |
104 |
86 |
279 |
447 |
132 |
42 |
0 |
| CDI |
0 |
77 |
41 |
242 |
704 |
598 |
254 |
1 |
| VCDI |
0 |
125 |
104 |
333 |
1249 |
6129 |
32850 |
55197 |
|
Date: 2023-02-25:
| 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 |
57025 |
25074 |
2646 |
560 |
187 |
16 |
5 |
0 |
| OW |
52 |
424 |
210 |
318 |
162 |
28 |
5 |
0 |
| VODI |
0 |
261 |
155 |
365 |
314 |
77 |
5 |
0 |
| ODI |
0 |
109 |
101 |
231 |
360 |
168 |
35 |
2 |
| CDI |
0 |
83 |
50 |
254 |
556 |
615 |
249 |
14 |
| VCDI |
0 |
204 |
155 |
420 |
1884 |
7541 |
43705 |
42423 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
57025 |
25094 |
2654 |
548 |
211 |
19 |
5 |
0 |
| OW |
52 |
417 |
203 |
324 |
147 |
36 |
5 |
0 |
| VODI |
0 |
249 |
160 |
370 |
277 |
83 |
4 |
0 |
| ODI |
0 |
107 |
97 |
243 |
362 |
153 |
38 |
2 |
| CDI |
0 |
77 |
50 |
240 |
585 |
594 |
250 |
19 |
| VCDI |
0 |
211 |
153 |
423 |
1881 |
7560 |
43702 |
42418 |
|
Date: 2023-02-27:
| 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 |
52301 |
20649 |
11477 |
773 |
158 |
28 |
26 |
0 |
| OW |
52 |
525 |
246 |
405 |
201 |
6 |
3 |
0 |
| VODI |
0 |
234 |
203 |
440 |
373 |
94 |
8 |
0 |
| ODI |
0 |
95 |
141 |
300 |
505 |
222 |
23 |
0 |
| CDI |
0 |
86 |
64 |
169 |
656 |
810 |
319 |
2 |
| VCDI |
0 |
97 |
266 |
480 |
1545 |
7981 |
35688 |
49397 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
52301 |
20437 |
11397 |
713 |
220 |
29 |
25 |
0 |
| OW |
52 |
435 |
247 |
320 |
214 |
40 |
5 |
0 |
| VODI |
0 |
276 |
227 |
376 |
253 |
103 |
24 |
0 |
| ODI |
0 |
122 |
130 |
278 |
327 |
161 |
43 |
0 |
| CDI |
0 |
92 |
72 |
280 |
573 |
883 |
355 |
30 |
| VCDI |
0 |
324 |
324 |
600 |
1851 |
7925 |
35615 |
49369 |
|
Date: 2023-03-01:
| 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 |
55241 |
25864 |
2996 |
915 |
171 |
20 |
37 |
0 |
| OW |
52 |
284 |
289 |
439 |
201 |
51 |
14 |
0 |
| VODI |
0 |
207 |
186 |
478 |
399 |
117 |
28 |
0 |
| ODI |
0 |
55 |
75 |
210 |
511 |
224 |
35 |
0 |
| CDI |
0 |
73 |
42 |
235 |
937 |
894 |
220 |
24 |
| VCDI |
0 |
126 |
237 |
423 |
1312 |
6095 |
35326 |
52005 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
55241 |
25775 |
2956 |
783 |
192 |
59 |
42 |
0 |
| OW |
52 |
292 |
254 |
406 |
218 |
57 |
24 |
0 |
| VODI |
0 |
132 |
159 |
451 |
354 |
167 |
44 |
0 |
| ODI |
0 |
85 |
59 |
279 |
429 |
219 |
99 |
0 |
| CDI |
0 |
82 |
51 |
243 |
886 |
941 |
269 |
16 |
| VCDI |
0 |
243 |
346 |
538 |
1452 |
5958 |
35182 |
52013 |
|
Date: 2023-03-03:
| 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 |
56140 |
21359 |
6753 |
762 |
94 |
12 |
23 |
0 |
| OW |
55 |
228 |
362 |
387 |
169 |
36 |
9 |
0 |
| VODI |
0 |
150 |
199 |
450 |
285 |
136 |
30 |
0 |
| ODI |
0 |
202 |
59 |
391 |
365 |
190 |
43 |
0 |
| CDI |
0 |
70 |
64 |
320 |
750 |
917 |
298 |
0 |
| VCDI |
0 |
122 |
111 |
433 |
1479 |
6502 |
33962 |
53131 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
56137 |
21157 |
6577 |
745 |
136 |
25 |
28 |
0 |
| OW |
57 |
316 |
359 |
310 |
166 |
74 |
17 |
0 |
| VODI |
1 |
181 |
289 |
395 |
259 |
139 |
44 |
0 |
| ODI |
0 |
100 |
113 |
353 |
293 |
205 |
84 |
0 |
| CDI |
0 |
124 |
47 |
389 |
696 |
885 |
275 |
20 |
| VCDI |
0 |
253 |
163 |
551 |
1592 |
6465 |
33917 |
53111 |
|
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