Validation of sea ice concentration - Full domain
Bulletin date: 2022-12-29
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2022-12-23:
| 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 |
68108 |
17956 |
4610 |
382 |
212 |
373 |
21 |
0 |
| OW |
63 |
354 |
302 |
343 |
156 |
69 |
26 |
0 |
| VODI |
0 |
167 |
210 |
417 |
380 |
113 |
26 |
0 |
| ODI |
0 |
54 |
80 |
384 |
669 |
430 |
47 |
0 |
| CDI |
0 |
29 |
25 |
183 |
731 |
1253 |
401 |
15 |
| VCDI |
0 |
5 |
26 |
151 |
1007 |
7847 |
37744 |
41679 |
|
...date precedes bulletin
|
Date: 2022-12-25:
| 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 |
64355 |
21084 |
4729 |
415 |
220 |
406 |
31 |
0 |
| OW |
55 |
501 |
371 |
275 |
175 |
62 |
42 |
0 |
| VODI |
0 |
299 |
418 |
459 |
296 |
150 |
36 |
0 |
| ODI |
0 |
122 |
172 |
510 |
494 |
265 |
30 |
0 |
| CDI |
0 |
51 |
114 |
380 |
750 |
790 |
113 |
13 |
| VCDI |
0 |
15 |
96 |
245 |
1005 |
7518 |
32730 |
47256 |
|
...date precedes bulletin
|
Date: 2022-12-27:
| 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 |
63862 |
24050 |
2531 |
347 |
130 |
312 |
25 |
0 |
| OW |
65 |
419 |
288 |
330 |
154 |
78 |
8 |
0 |
| VODI |
0 |
182 |
262 |
608 |
409 |
104 |
16 |
0 |
| ODI |
0 |
76 |
138 |
402 |
570 |
375 |
50 |
0 |
| CDI |
0 |
26 |
39 |
189 |
586 |
874 |
139 |
4 |
| VCDI |
0 |
18 |
60 |
275 |
962 |
6971 |
31877 |
49237 |
|
...date precedes bulletin
|
Date: 2022-12-29:
| 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 |
63739 |
22279 |
3801 |
350 |
202 |
377 |
39 |
0 |
| OW |
59 |
709 |
235 |
216 |
101 |
103 |
13 |
0 |
| VODI |
0 |
379 |
241 |
364 |
285 |
152 |
7 |
0 |
| ODI |
0 |
122 |
150 |
358 |
586 |
333 |
46 |
0 |
| CDI |
0 |
50 |
107 |
250 |
563 |
716 |
261 |
16 |
| VCDI |
0 |
62 |
80 |
406 |
1201 |
7283 |
32347 |
48460 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
63739 |
22421 |
3826 |
375 |
221 |
396 |
41 |
0 |
| OW |
59 |
587 |
244 |
249 |
122 |
108 |
13 |
0 |
| VODI |
0 |
330 |
214 |
350 |
314 |
168 |
15 |
0 |
| ODI |
0 |
131 |
129 |
321 |
499 |
301 |
47 |
0 |
| CDI |
0 |
69 |
108 |
234 |
559 |
700 |
229 |
16 |
| VCDI |
0 |
63 |
93 |
415 |
1223 |
7291 |
32368 |
48460 |
|
Date: 2022-12-31:
| 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 |
67320 |
17549 |
4578 |
399 |
188 |
315 |
30 |
0 |
| OW |
119 |
828 |
239 |
188 |
88 |
109 |
16 |
0 |
| VODI |
8 |
475 |
266 |
326 |
285 |
138 |
10 |
0 |
| ODI |
0 |
212 |
143 |
307 |
416 |
236 |
41 |
0 |
| CDI |
0 |
101 |
114 |
264 |
747 |
708 |
173 |
7 |
| VCDI |
0 |
77 |
336 |
497 |
1534 |
6788 |
33745 |
47128 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67323 |
17690 |
4625 |
444 |
199 |
352 |
32 |
0 |
| OW |
116 |
727 |
207 |
182 |
93 |
90 |
17 |
0 |
| VODI |
8 |
405 |
240 |
320 |
312 |
159 |
13 |
0 |
| ODI |
0 |
210 |
151 |
272 |
425 |
208 |
48 |
0 |
| CDI |
0 |
129 |
108 |
252 |
680 |
671 |
185 |
9 |
| VCDI |
0 |
81 |
345 |
511 |
1549 |
6814 |
33720 |
47126 |
|
Date: 2023-01-02:
| 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 |
62687 |
21392 |
5365 |
432 |
166 |
160 |
4 |
0 |
| OW |
98 |
564 |
194 |
310 |
150 |
70 |
39 |
0 |
| VODI |
2 |
379 |
166 |
387 |
264 |
132 |
44 |
0 |
| ODI |
0 |
218 |
108 |
270 |
375 |
305 |
31 |
0 |
| CDI |
0 |
140 |
145 |
207 |
561 |
996 |
244 |
7 |
| VCDI |
0 |
219 |
286 |
688 |
1174 |
5574 |
31738 |
50757 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
62675 |
20882 |
5284 |
472 |
266 |
300 |
81 |
0 |
| OW |
109 |
615 |
207 |
245 |
130 |
112 |
20 |
0 |
| VODI |
3 |
704 |
199 |
284 |
253 |
176 |
26 |
0 |
| ODI |
0 |
260 |
120 |
274 |
259 |
273 |
128 |
0 |
| CDI |
0 |
237 |
124 |
264 |
447 |
706 |
269 |
10 |
| VCDI |
0 |
214 |
330 |
755 |
1335 |
5670 |
31576 |
50754 |
|
Date: 2023-01-04:
| 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 |
61956 |
24076 |
2806 |
490 |
162 |
163 |
33 |
0 |
| OW |
92 |
509 |
310 |
246 |
143 |
53 |
21 |
0 |
| VODI |
2 |
260 |
290 |
415 |
262 |
91 |
66 |
0 |
| ODI |
0 |
165 |
179 |
292 |
306 |
188 |
46 |
0 |
| CDI |
0 |
126 |
135 |
350 |
462 |
715 |
173 |
14 |
| VCDI |
0 |
158 |
169 |
578 |
1286 |
5350 |
30956 |
52954 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
61954 |
23700 |
2667 |
412 |
303 |
263 |
146 |
0 |
| OW |
85 |
524 |
300 |
228 |
169 |
87 |
52 |
0 |
| VODI |
11 |
391 |
341 |
565 |
241 |
148 |
37 |
0 |
| ODI |
0 |
215 |
157 |
307 |
229 |
213 |
54 |
0 |
| CDI |
0 |
266 |
186 |
250 |
364 |
646 |
205 |
7 |
| VCDI |
0 |
198 |
238 |
609 |
1315 |
5203 |
30801 |
52961 |
|
Date: 2023-01-06:
| 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 |
60713 |
24026 |
3866 |
316 |
175 |
93 |
84 |
0 |
| OW |
71 |
621 |
231 |
268 |
93 |
35 |
17 |
0 |
| VODI |
0 |
375 |
200 |
342 |
264 |
167 |
81 |
0 |
| ODI |
0 |
205 |
134 |
183 |
274 |
254 |
70 |
0 |
| CDI |
0 |
129 |
131 |
300 |
452 |
566 |
183 |
8 |
| VCDI |
0 |
85 |
167 |
498 |
1113 |
5386 |
31501 |
53371 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
60713 |
23528 |
3765 |
303 |
220 |
233 |
203 |
0 |
| OW |
71 |
624 |
229 |
202 |
93 |
152 |
93 |
0 |
| VODI |
0 |
512 |
210 |
343 |
316 |
242 |
68 |
0 |
| ODI |
0 |
229 |
159 |
208 |
243 |
202 |
63 |
0 |
| CDI |
0 |
307 |
129 |
242 |
336 |
384 |
248 |
24 |
| VCDI |
0 |
241 |
237 |
609 |
1163 |
5288 |
31261 |
53355 |
|
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