Validation of sea ice concentration - European sector
Bulletin date: 2023-05-25
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-05-19:
| 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 |
70987 |
15398 |
412 |
594 |
293 |
87 |
9 |
0 |
| OW |
62 |
123 |
161 |
395 |
289 |
96 |
21 |
0 |
| VODI |
0 |
25 |
35 |
295 |
467 |
184 |
105 |
0 |
| ODI |
0 |
3 |
8 |
104 |
512 |
306 |
114 |
0 |
| CDI |
0 |
0 |
3 |
93 |
886 |
2465 |
951 |
0 |
| VCDI |
0 |
0 |
0 |
29 |
206 |
1996 |
8533 |
2853 |
|
...date precedes bulletin
|
Date: 2023-05-21:
| 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 |
70882 |
15314 |
511 |
841 |
462 |
115 |
70 |
0 |
| OW |
57 |
145 |
91 |
380 |
342 |
131 |
39 |
0 |
| VODI |
0 |
55 |
57 |
200 |
449 |
185 |
72 |
0 |
| ODI |
0 |
11 |
17 |
113 |
457 |
315 |
138 |
0 |
| CDI |
0 |
0 |
3 |
116 |
1257 |
1877 |
913 |
0 |
| VCDI |
0 |
0 |
1 |
39 |
627 |
2470 |
8680 |
1668 |
|
...date precedes bulletin
|
Date: 2023-05-23:
| 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 |
71332 |
14981 |
506 |
913 |
427 |
112 |
24 |
0 |
| OW |
52 |
162 |
103 |
457 |
264 |
79 |
42 |
0 |
| VODI |
0 |
40 |
60 |
386 |
462 |
106 |
29 |
0 |
| ODI |
0 |
5 |
22 |
218 |
896 |
292 |
69 |
0 |
| CDI |
0 |
0 |
1 |
233 |
1492 |
2407 |
564 |
0 |
| VCDI |
0 |
0 |
4 |
68 |
238 |
2071 |
7827 |
2156 |
|
...date precedes bulletin
|
Date: 2023-05-25:
| 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 |
71602 |
14902 |
554 |
1019 |
386 |
108 |
44 |
0 |
| OW |
53 |
145 |
110 |
401 |
290 |
45 |
31 |
0 |
| VODI |
0 |
72 |
61 |
354 |
481 |
118 |
47 |
0 |
| ODI |
0 |
55 |
30 |
214 |
691 |
336 |
117 |
0 |
| CDI |
0 |
39 |
37 |
188 |
1140 |
2429 |
1320 |
0 |
| VCDI |
0 |
31 |
42 |
97 |
219 |
1590 |
8363 |
1339 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
71602 |
14890 |
565 |
1060 |
411 |
109 |
44 |
0 |
| OW |
53 |
155 |
100 |
351 |
259 |
37 |
28 |
0 |
| VODI |
0 |
76 |
61 |
351 |
492 |
117 |
52 |
0 |
| ODI |
0 |
61 |
29 |
209 |
664 |
364 |
123 |
0 |
| CDI |
0 |
31 |
35 |
197 |
1150 |
2478 |
1256 |
0 |
| VCDI |
0 |
31 |
44 |
105 |
231 |
1521 |
8419 |
1339 |
|
Date: 2023-05-27:
| 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 |
72753 |
13875 |
541 |
1143 |
431 |
155 |
12 |
0 |
| OW |
58 |
165 |
92 |
393 |
281 |
62 |
19 |
0 |
| VODI |
0 |
78 |
45 |
314 |
543 |
156 |
45 |
0 |
| ODI |
0 |
74 |
27 |
213 |
589 |
439 |
215 |
0 |
| CDI |
0 |
71 |
16 |
149 |
863 |
1916 |
1574 |
0 |
| VCDI |
0 |
90 |
31 |
144 |
222 |
1481 |
7661 |
2164 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
72753 |
13868 |
544 |
1167 |
433 |
157 |
12 |
0 |
| OW |
58 |
174 |
83 |
347 |
277 |
56 |
19 |
0 |
| VODI |
0 |
86 |
52 |
326 |
530 |
155 |
48 |
0 |
| ODI |
0 |
80 |
26 |
235 |
595 |
439 |
231 |
0 |
| CDI |
0 |
49 |
14 |
140 |
889 |
2181 |
1563 |
0 |
| VCDI |
0 |
96 |
33 |
141 |
205 |
1221 |
7653 |
2164 |
|
Date: 2023-05-29:
| 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 |
72660 |
14424 |
492 |
964 |
333 |
83 |
25 |
0 |
| OW |
52 |
160 |
139 |
446 |
197 |
42 |
8 |
0 |
| VODI |
0 |
55 |
64 |
528 |
546 |
104 |
22 |
0 |
| ODI |
0 |
29 |
32 |
210 |
1173 |
531 |
78 |
0 |
| CDI |
0 |
22 |
12 |
102 |
707 |
3454 |
1326 |
0 |
| VCDI |
0 |
4 |
1 |
8 |
28 |
618 |
8173 |
1248 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
72658 |
14219 |
519 |
1165 |
452 |
105 |
35 |
0 |
| OW |
54 |
119 |
76 |
324 |
328 |
88 |
22 |
0 |
| VODI |
0 |
115 |
37 |
342 |
528 |
197 |
70 |
0 |
| ODI |
0 |
107 |
19 |
190 |
660 |
514 |
194 |
0 |
| CDI |
0 |
70 |
50 |
113 |
768 |
2481 |
1477 |
0 |
| VCDI |
0 |
64 |
39 |
124 |
248 |
1447 |
7834 |
1248 |
|
Date: 2023-05-31:
| 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 |
73336 |
13925 |
593 |
1128 |
361 |
89 |
7 |
0 |
| OW |
50 |
142 |
89 |
508 |
279 |
34 |
7 |
0 |
| VODI |
0 |
73 |
33 |
448 |
650 |
141 |
14 |
0 |
| ODI |
0 |
56 |
5 |
204 |
1186 |
553 |
49 |
0 |
| CDI |
0 |
69 |
25 |
80 |
900 |
2737 |
1447 |
0 |
| VCDI |
0 |
0 |
1 |
39 |
127 |
1049 |
6494 |
2172 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
73334 |
13620 |
585 |
1230 |
520 |
120 |
15 |
0 |
| OW |
52 |
136 |
64 |
373 |
302 |
105 |
18 |
0 |
| VODI |
0 |
157 |
39 |
361 |
589 |
228 |
47 |
0 |
| ODI |
0 |
101 |
23 |
228 |
765 |
462 |
215 |
0 |
| CDI |
0 |
123 |
6 |
102 |
1177 |
2538 |
1243 |
0 |
| VCDI |
0 |
128 |
29 |
113 |
150 |
1150 |
6480 |
2172 |
|
Date: 2023-06-02:
| 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 |
73420 |
13819 |
649 |
1193 |
371 |
51 |
13 |
0 |
| OW |
50 |
130 |
86 |
570 |
361 |
38 |
14 |
0 |
| VODI |
0 |
60 |
36 |
414 |
738 |
186 |
17 |
0 |
| ODI |
0 |
56 |
12 |
217 |
1063 |
692 |
65 |
0 |
| CDI |
0 |
70 |
24 |
106 |
907 |
2473 |
1249 |
0 |
| VCDI |
0 |
0 |
0 |
37 |
118 |
1281 |
6840 |
1674 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
73420 |
13623 |
630 |
1276 |
634 |
85 |
25 |
0 |
| OW |
50 |
144 |
57 |
367 |
370 |
110 |
8 |
0 |
| VODI |
0 |
145 |
58 |
380 |
604 |
368 |
51 |
0 |
| ODI |
0 |
80 |
23 |
275 |
661 |
598 |
251 |
0 |
| CDI |
0 |
96 |
19 |
158 |
1118 |
2274 |
1300 |
0 |
| VCDI |
0 |
47 |
20 |
81 |
171 |
1286 |
6563 |
1674 |
|
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