Validation of sea ice concentration - Full domain
Bulletin date: 2023-03-23
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-03-17:
| 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 |
61025 |
21109 |
1914 |
670 |
236 |
87 |
39 |
0 |
| OW |
52 |
406 |
226 |
344 |
184 |
102 |
14 |
0 |
| VODI |
0 |
166 |
112 |
300 |
375 |
191 |
29 |
0 |
| ODI |
0 |
98 |
34 |
158 |
352 |
325 |
92 |
14 |
| CDI |
0 |
62 |
31 |
102 |
289 |
964 |
563 |
122 |
| VCDI |
0 |
58 |
41 |
135 |
682 |
4464 |
35866 |
55015 |
|
...date precedes bulletin
|
Date: 2023-03-19:
| 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 |
56945 |
24657 |
2420 |
620 |
220 |
83 |
44 |
0 |
| OW |
52 |
345 |
255 |
359 |
179 |
85 |
19 |
0 |
| VODI |
0 |
164 |
91 |
354 |
311 |
176 |
44 |
0 |
| ODI |
0 |
96 |
41 |
138 |
338 |
333 |
107 |
2 |
| CDI |
0 |
32 |
31 |
75 |
296 |
855 |
520 |
43 |
| VCDI |
0 |
24 |
28 |
116 |
472 |
3441 |
40962 |
51675 |
|
...date precedes bulletin
|
Date: 2023-03-21:
| 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 |
55068 |
24640 |
4524 |
641 |
199 |
55 |
13 |
0 |
| OW |
54 |
196 |
236 |
379 |
235 |
58 |
12 |
0 |
| VODI |
0 |
174 |
114 |
280 |
346 |
202 |
45 |
0 |
| ODI |
0 |
75 |
47 |
151 |
333 |
290 |
68 |
0 |
| CDI |
0 |
46 |
36 |
79 |
344 |
708 |
365 |
25 |
| VCDI |
0 |
29 |
25 |
143 |
486 |
4116 |
38714 |
53497 |
|
...date precedes bulletin
|
Date: 2023-03-23:
| 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 |
57519 |
22367 |
3970 |
712 |
225 |
61 |
13 |
0 |
| OW |
54 |
306 |
177 |
340 |
297 |
95 |
9 |
0 |
| VODI |
0 |
210 |
96 |
224 |
344 |
231 |
29 |
2 |
| ODI |
0 |
72 |
58 |
131 |
282 |
299 |
162 |
4 |
| CDI |
0 |
38 |
28 |
105 |
304 |
603 |
527 |
19 |
| VCDI |
0 |
9 |
26 |
107 |
386 |
3943 |
36681 |
55983 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
57519 |
22368 |
3980 |
714 |
277 |
67 |
14 |
0 |
| OW |
54 |
317 |
162 |
329 |
257 |
88 |
8 |
0 |
| VODI |
0 |
203 |
98 |
227 |
331 |
229 |
31 |
0 |
| ODI |
0 |
61 |
56 |
126 |
272 |
294 |
159 |
5 |
| CDI |
0 |
36 |
31 |
110 |
312 |
613 |
531 |
20 |
| VCDI |
0 |
17 |
28 |
113 |
389 |
3941 |
36678 |
55983 |
|
Date: 2023-03-25:
| 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 |
59565 |
22004 |
2175 |
618 |
254 |
124 |
27 |
0 |
| OW |
55 |
292 |
190 |
371 |
217 |
135 |
27 |
0 |
| VODI |
0 |
177 |
90 |
250 |
317 |
216 |
75 |
0 |
| ODI |
0 |
78 |
38 |
121 |
262 |
323 |
126 |
0 |
| CDI |
0 |
32 |
24 |
94 |
345 |
637 |
494 |
1 |
| VCDI |
0 |
10 |
13 |
65 |
657 |
4687 |
39288 |
52574 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
59564 |
22023 |
2179 |
631 |
287 |
140 |
29 |
0 |
| OW |
56 |
287 |
179 |
347 |
195 |
130 |
28 |
0 |
| VODI |
0 |
176 |
96 |
251 |
307 |
202 |
76 |
0 |
| ODI |
0 |
54 |
38 |
121 |
258 |
329 |
135 |
0 |
| CDI |
0 |
41 |
22 |
97 |
334 |
638 |
486 |
1 |
| VCDI |
0 |
12 |
16 |
72 |
671 |
4683 |
39283 |
52574 |
|
Date: 2023-03-27:
| 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 |
59514 |
22143 |
1948 |
568 |
255 |
105 |
11 |
0 |
| OW |
62 |
276 |
193 |
388 |
219 |
105 |
14 |
0 |
| VODI |
0 |
122 |
86 |
318 |
386 |
207 |
60 |
0 |
| ODI |
0 |
31 |
16 |
112 |
375 |
422 |
129 |
0 |
| CDI |
0 |
15 |
10 |
59 |
397 |
1020 |
663 |
14 |
| VCDI |
0 |
0 |
0 |
25 |
425 |
3968 |
40115 |
52272 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
59514 |
22083 |
1938 |
678 |
362 |
174 |
26 |
0 |
| OW |
62 |
284 |
165 |
265 |
210 |
146 |
34 |
0 |
| VODI |
0 |
141 |
97 |
258 |
307 |
263 |
110 |
0 |
| ODI |
0 |
43 |
32 |
132 |
273 |
345 |
189 |
0 |
| CDI |
0 |
35 |
20 |
90 |
396 |
850 |
683 |
2 |
| VCDI |
0 |
1 |
1 |
47 |
509 |
4049 |
39950 |
52284 |
|
Date: 2023-03-29:
| 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 |
60717 |
20285 |
2468 |
656 |
320 |
145 |
36 |
0 |
| OW |
62 |
208 |
253 |
317 |
212 |
109 |
45 |
0 |
| VODI |
0 |
100 |
87 |
269 |
351 |
215 |
97 |
0 |
| ODI |
0 |
28 |
11 |
115 |
270 |
320 |
152 |
0 |
| CDI |
0 |
18 |
5 |
72 |
342 |
794 |
614 |
64 |
| VCDI |
0 |
3 |
2 |
53 |
479 |
4002 |
33553 |
59199 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
60717 |
20212 |
2390 |
675 |
404 |
208 |
65 |
0 |
| OW |
62 |
233 |
230 |
254 |
198 |
124 |
76 |
0 |
| VODI |
0 |
102 |
140 |
222 |
300 |
252 |
140 |
0 |
| ODI |
0 |
35 |
48 |
149 |
233 |
270 |
200 |
0 |
| CDI |
0 |
59 |
18 |
113 |
354 |
752 |
636 |
76 |
| VCDI |
0 |
1 |
0 |
69 |
485 |
3979 |
33380 |
59187 |
|
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 |
58483 |
21661 |
3403 |
691 |
315 |
94 |
30 |
0 |
| OW |
62 |
207 |
236 |
377 |
204 |
94 |
27 |
0 |
| VODI |
0 |
114 |
124 |
253 |
330 |
186 |
117 |
0 |
| ODI |
0 |
39 |
27 |
154 |
337 |
259 |
213 |
0 |
| CDI |
0 |
10 |
3 |
75 |
440 |
706 |
621 |
4 |
| VCDI |
0 |
2 |
0 |
19 |
531 |
3077 |
28687 |
64836 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
58483 |
21530 |
3259 |
681 |
376 |
114 |
37 |
0 |
| OW |
62 |
270 |
263 |
287 |
188 |
121 |
58 |
0 |
| VODI |
0 |
125 |
160 |
253 |
295 |
189 |
134 |
0 |
| ODI |
0 |
64 |
55 |
148 |
294 |
268 |
241 |
0 |
| CDI |
0 |
32 |
46 |
133 |
419 |
668 |
895 |
97 |
| VCDI |
0 |
12 |
10 |
67 |
585 |
3056 |
28330 |
64743 |
|
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