Validation of sea ice concentration - Full domain
Bulletin date: 2023-03-09
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
|
...date precedes bulletin
|
Date: 2023-03-05:
| 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 |
56415 |
23723 |
4156 |
551 |
102 |
18 |
33 |
0 |
| OW |
52 |
231 |
372 |
388 |
162 |
38 |
16 |
0 |
| VODI |
0 |
96 |
169 |
515 |
290 |
129 |
49 |
0 |
| ODI |
0 |
37 |
59 |
313 |
391 |
237 |
86 |
0 |
| CDI |
0 |
44 |
47 |
218 |
676 |
787 |
426 |
5 |
| VCDI |
0 |
69 |
80 |
264 |
1173 |
6360 |
37754 |
50517 |
|
...date precedes bulletin
|
Date: 2023-03-07:
| 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 |
59305 |
17222 |
7859 |
481 |
86 |
20 |
33 |
0 |
| OW |
52 |
386 |
339 |
359 |
97 |
12 |
6 |
0 |
| VODI |
0 |
185 |
229 |
437 |
285 |
69 |
12 |
0 |
| ODI |
0 |
76 |
101 |
352 |
371 |
172 |
68 |
0 |
| CDI |
0 |
28 |
60 |
236 |
600 |
784 |
271 |
10 |
| VCDI |
0 |
20 |
59 |
264 |
1283 |
6601 |
36874 |
51344 |
|
...date precedes bulletin
|
Date: 2023-03-09:
| 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 |
57776 |
20084 |
6416 |
530 |
79 |
28 |
48 |
0 |
| OW |
53 |
322 |
297 |
463 |
156 |
12 |
6 |
0 |
| VODI |
0 |
161 |
202 |
400 |
349 |
74 |
9 |
0 |
| ODI |
0 |
60 |
120 |
243 |
358 |
220 |
18 |
0 |
| CDI |
0 |
48 |
98 |
227 |
526 |
734 |
200 |
7 |
| VCDI |
0 |
112 |
178 |
408 |
1300 |
7775 |
37950 |
49001 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
57776 |
20027 |
6439 |
564 |
84 |
28 |
52 |
0 |
| OW |
53 |
354 |
267 |
418 |
151 |
10 |
3 |
0 |
| VODI |
0 |
191 |
197 |
391 |
347 |
84 |
8 |
0 |
| ODI |
0 |
54 |
124 |
238 |
348 |
214 |
18 |
0 |
| CDI |
0 |
47 |
102 |
234 |
516 |
738 |
210 |
3 |
| VCDI |
0 |
114 |
182 |
426 |
1322 |
7769 |
37940 |
49005 |
|
Date: 2023-03-11:
| 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 |
57305 |
23831 |
3464 |
502 |
87 |
15 |
18 |
0 |
| OW |
55 |
488 |
230 |
383 |
114 |
21 |
4 |
0 |
| VODI |
2 |
310 |
169 |
384 |
296 |
83 |
8 |
0 |
| ODI |
0 |
154 |
100 |
256 |
289 |
178 |
28 |
0 |
| CDI |
0 |
160 |
63 |
256 |
372 |
550 |
165 |
3 |
| VCDI |
0 |
224 |
140 |
494 |
1350 |
6145 |
35777 |
52575 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
57305 |
23751 |
3475 |
514 |
92 |
15 |
20 |
0 |
| OW |
55 |
549 |
213 |
364 |
107 |
19 |
2 |
0 |
| VODI |
2 |
333 |
165 |
384 |
276 |
84 |
6 |
0 |
| ODI |
0 |
162 |
108 |
256 |
275 |
178 |
29 |
0 |
| CDI |
0 |
139 |
57 |
246 |
386 |
555 |
166 |
5 |
| VCDI |
0 |
233 |
148 |
511 |
1372 |
6141 |
35777 |
52573 |
|
Date: 2023-03-13:
| 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 |
58549 |
23308 |
2739 |
525 |
99 |
31 |
10 |
0 |
| OW |
52 |
426 |
286 |
418 |
127 |
42 |
9 |
0 |
| VODI |
0 |
313 |
178 |
511 |
306 |
83 |
4 |
0 |
| ODI |
0 |
177 |
38 |
201 |
401 |
198 |
41 |
0 |
| CDI |
0 |
91 |
27 |
117 |
391 |
791 |
473 |
1 |
| VCDI |
0 |
145 |
105 |
321 |
993 |
5021 |
31020 |
58480 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
58549 |
22972 |
2726 |
565 |
127 |
44 |
15 |
0 |
| OW |
52 |
566 |
177 |
329 |
128 |
46 |
5 |
0 |
| VODI |
0 |
437 |
213 |
353 |
250 |
129 |
9 |
0 |
| ODI |
0 |
210 |
114 |
259 |
261 |
194 |
45 |
0 |
| CDI |
0 |
107 |
47 |
202 |
354 |
549 |
321 |
3 |
| VCDI |
0 |
168 |
96 |
385 |
1197 |
5204 |
31162 |
58478 |
|
Date: 2023-03-15:
| 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 |
62322 |
20792 |
1238 |
590 |
141 |
52 |
31 |
0 |
| OW |
58 |
429 |
250 |
399 |
158 |
40 |
9 |
0 |
| VODI |
2 |
222 |
170 |
371 |
346 |
83 |
14 |
0 |
| ODI |
0 |
131 |
73 |
197 |
419 |
186 |
31 |
0 |
| CDI |
0 |
77 |
44 |
148 |
388 |
811 |
504 |
61 |
| VCDI |
0 |
149 |
141 |
345 |
1315 |
5255 |
29303 |
59753 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
62322 |
20433 |
1186 |
590 |
172 |
59 |
36 |
0 |
| OW |
58 |
571 |
214 |
287 |
138 |
57 |
6 |
0 |
| VODI |
2 |
458 |
239 |
356 |
297 |
129 |
17 |
0 |
| ODI |
0 |
188 |
101 |
273 |
350 |
218 |
48 |
0 |
| CDI |
0 |
74 |
93 |
160 |
419 |
730 |
433 |
12 |
| VCDI |
0 |
76 |
83 |
384 |
1391 |
5234 |
29352 |
59802 |
|
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 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
61025 |
20788 |
1810 |
607 |
237 |
119 |
41 |
0 |
| OW |
52 |
458 |
242 |
271 |
189 |
104 |
16 |
0 |
| VODI |
0 |
419 |
184 |
378 |
327 |
231 |
55 |
0 |
| ODI |
0 |
130 |
74 |
205 |
302 |
355 |
191 |
9 |
| CDI |
0 |
86 |
26 |
131 |
374 |
957 |
850 |
95 |
| VCDI |
0 |
18 |
22 |
117 |
689 |
4367 |
35450 |
55047 |
|
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