Validation of sea ice concentration - Full domain
Bulletin date: 2023-05-04
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-04-28:
| 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 |
67529 |
17035 |
505 |
747 |
463 |
178 |
50 |
0 |
| OW |
59 |
277 |
111 |
331 |
339 |
169 |
34 |
0 |
| VODI |
0 |
199 |
70 |
255 |
416 |
297 |
139 |
0 |
| ODI |
0 |
121 |
34 |
131 |
385 |
445 |
229 |
0 |
| CDI |
0 |
112 |
31 |
183 |
641 |
1363 |
1089 |
0 |
| VCDI |
0 |
102 |
65 |
287 |
1207 |
7385 |
34110 |
49925 |
|
...date precedes bulletin
|
Date: 2023-04-30:
| 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 |
67890 |
16872 |
496 |
686 |
461 |
279 |
43 |
0 |
| OW |
74 |
324 |
128 |
291 |
304 |
188 |
59 |
0 |
| VODI |
0 |
200 |
82 |
220 |
346 |
329 |
160 |
0 |
| ODI |
0 |
103 |
36 |
108 |
332 |
414 |
263 |
0 |
| CDI |
0 |
104 |
40 |
191 |
560 |
1410 |
1300 |
9 |
| VCDI |
0 |
101 |
52 |
247 |
1225 |
6502 |
36085 |
48534 |
|
...date precedes bulletin
|
Date: 2023-05-02:
| 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 |
67389 |
17676 |
449 |
708 |
414 |
182 |
49 |
0 |
| OW |
94 |
224 |
113 |
283 |
258 |
101 |
29 |
0 |
| VODI |
3 |
123 |
71 |
247 |
434 |
214 |
56 |
0 |
| ODI |
0 |
59 |
37 |
231 |
479 |
407 |
138 |
0 |
| CDI |
0 |
47 |
35 |
302 |
1139 |
2919 |
1322 |
10 |
| VCDI |
0 |
263 |
38 |
286 |
990 |
5713 |
35310 |
48206 |
|
...date precedes bulletin
|
Date: 2023-05-04:
| 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 |
67915 |
16851 |
521 |
872 |
503 |
170 |
43 |
0 |
| OW |
82 |
153 |
87 |
311 |
302 |
159 |
21 |
0 |
| VODI |
4 |
90 |
47 |
244 |
443 |
299 |
93 |
0 |
| ODI |
0 |
66 |
57 |
299 |
539 |
525 |
181 |
0 |
| CDI |
0 |
52 |
25 |
227 |
1179 |
3025 |
1407 |
5 |
| VCDI |
0 |
50 |
55 |
242 |
803 |
7333 |
40188 |
41580 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67916 |
16890 |
534 |
902 |
518 |
177 |
46 |
0 |
| OW |
80 |
124 |
69 |
293 |
312 |
155 |
23 |
0 |
| VODI |
5 |
87 |
52 |
243 |
428 |
289 |
92 |
0 |
| ODI |
0 |
59 |
56 |
275 |
530 |
527 |
197 |
0 |
| CDI |
0 |
51 |
26 |
243 |
1125 |
2855 |
1451 |
6 |
| VCDI |
0 |
51 |
55 |
239 |
856 |
7508 |
40124 |
41579 |
|
Date: 2023-05-06:
| 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 |
67925 |
16878 |
544 |
900 |
414 |
161 |
39 |
0 |
| OW |
77 |
129 |
110 |
358 |
362 |
126 |
17 |
0 |
| VODI |
0 |
72 |
50 |
322 |
518 |
329 |
85 |
0 |
| ODI |
0 |
41 |
27 |
237 |
594 |
573 |
223 |
0 |
| CDI |
0 |
48 |
25 |
187 |
1160 |
2978 |
1939 |
1 |
| VCDI |
0 |
68 |
47 |
184 |
836 |
7188 |
37903 |
43373 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67926 |
16890 |
564 |
971 |
445 |
170 |
40 |
0 |
| OW |
76 |
119 |
91 |
293 |
344 |
123 |
21 |
0 |
| VODI |
0 |
76 |
47 |
300 |
496 |
314 |
93 |
0 |
| ODI |
0 |
40 |
29 |
258 |
590 |
596 |
227 |
0 |
| CDI |
0 |
43 |
25 |
179 |
1118 |
2982 |
1984 |
4 |
| VCDI |
0 |
68 |
47 |
187 |
891 |
7170 |
37841 |
43370 |
|
Date: 2023-05-08:
| 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 |
68847 |
16616 |
444 |
627 |
249 |
56 |
6 |
0 |
| OW |
71 |
274 |
178 |
390 |
260 |
45 |
0 |
0 |
| VODI |
0 |
86 |
112 |
536 |
625 |
159 |
6 |
0 |
| ODI |
0 |
47 |
48 |
257 |
1070 |
570 |
49 |
0 |
| CDI |
0 |
86 |
62 |
233 |
1327 |
4047 |
1065 |
4 |
| VCDI |
0 |
33 |
20 |
194 |
657 |
5986 |
43070 |
38636 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
68847 |
16599 |
504 |
780 |
397 |
87 |
7 |
0 |
| OW |
71 |
188 |
112 |
332 |
310 |
114 |
8 |
0 |
| VODI |
0 |
96 |
80 |
342 |
563 |
235 |
62 |
0 |
| ODI |
0 |
65 |
41 |
261 |
652 |
584 |
171 |
0 |
| CDI |
0 |
89 |
51 |
215 |
1179 |
2457 |
1833 |
1 |
| VCDI |
0 |
105 |
76 |
307 |
1087 |
7386 |
42115 |
38639 |
|
Date: 2023-05-10:
| 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 |
70418 |
15600 |
411 |
558 |
223 |
114 |
23 |
0 |
| OW |
68 |
275 |
169 |
401 |
218 |
53 |
11 |
0 |
| VODI |
0 |
102 |
113 |
465 |
566 |
165 |
45 |
0 |
| ODI |
0 |
34 |
40 |
277 |
860 |
594 |
90 |
0 |
| CDI |
0 |
71 |
48 |
239 |
1448 |
3196 |
1684 |
14 |
| VCDI |
0 |
44 |
53 |
274 |
799 |
6831 |
42064 |
38390 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
70418 |
15526 |
421 |
595 |
314 |
148 |
43 |
0 |
| OW |
68 |
223 |
126 |
347 |
228 |
79 |
47 |
0 |
| VODI |
0 |
130 |
96 |
365 |
434 |
192 |
93 |
0 |
| ODI |
0 |
67 |
45 |
305 |
661 |
603 |
191 |
0 |
| CDI |
0 |
79 |
58 |
230 |
1326 |
2140 |
2335 |
4 |
| VCDI |
0 |
101 |
88 |
372 |
1151 |
7791 |
41208 |
38400 |
|
Date: 2023-05-12:
| 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 |
71023 |
15286 |
381 |
527 |
215 |
90 |
26 |
0 |
| OW |
64 |
382 |
152 |
348 |
246 |
75 |
9 |
0 |
| VODI |
0 |
187 |
108 |
462 |
509 |
241 |
34 |
0 |
| ODI |
0 |
54 |
63 |
292 |
793 |
586 |
141 |
0 |
| CDI |
0 |
146 |
55 |
300 |
1549 |
2725 |
1486 |
15 |
| VCDI |
0 |
122 |
57 |
374 |
964 |
8459 |
39700 |
38802 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
71023 |
15254 |
405 |
568 |
307 |
145 |
42 |
0 |
| OW |
64 |
304 |
103 |
254 |
234 |
104 |
35 |
0 |
| VODI |
0 |
193 |
96 |
385 |
397 |
274 |
53 |
0 |
| ODI |
0 |
119 |
52 |
316 |
603 |
573 |
239 |
0 |
| CDI |
0 |
132 |
58 |
325 |
1560 |
2424 |
2143 |
8 |
| VCDI |
0 |
175 |
102 |
455 |
1175 |
8656 |
38884 |
38809 |
|
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