Validation of sea ice concentration - European sector
Bulletin date: 2023-07-27
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-07-21:
| 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 |
85681 |
9804 |
539 |
814 |
98 |
3 |
0 |
0 |
| OW |
0 |
219 |
200 |
601 |
110 |
7 |
0 |
0 |
| VODI |
0 |
38 |
80 |
536 |
423 |
39 |
0 |
0 |
| ODI |
0 |
4 |
10 |
174 |
305 |
234 |
3 |
0 |
| CDI |
0 |
0 |
1 |
61 |
437 |
5323 |
155 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
2228 |
971 |
0 |
|
...date precedes bulletin
|
Date: 2023-07-23:
| 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 |
86840 |
8687 |
622 |
1087 |
65 |
0 |
0 |
0 |
| OW |
0 |
159 |
172 |
455 |
162 |
2 |
0 |
0 |
| VODI |
0 |
35 |
96 |
485 |
396 |
33 |
1 |
0 |
| ODI |
0 |
13 |
10 |
189 |
320 |
196 |
12 |
0 |
| CDI |
0 |
4 |
14 |
87 |
469 |
5500 |
184 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
2684 |
119 |
0 |
|
...date precedes bulletin
|
Date: 2023-07-25:
| 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 |
86602 |
9194 |
692 |
1003 |
58 |
0 |
0 |
0 |
| OW |
0 |
70 |
134 |
341 |
69 |
7 |
0 |
0 |
| VODI |
0 |
36 |
66 |
573 |
459 |
25 |
1 |
0 |
| ODI |
0 |
12 |
28 |
190 |
467 |
312 |
10 |
0 |
| CDI |
0 |
3 |
6 |
42 |
293 |
6786 |
204 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
1354 |
62 |
0 |
|
...date precedes bulletin
|
Date: 2023-07-27:
| 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 |
87547 |
8473 |
655 |
946 |
75 |
0 |
0 |
0 |
| OW |
0 |
79 |
100 |
366 |
114 |
10 |
0 |
0 |
| VODI |
0 |
36 |
57 |
537 |
394 |
35 |
0 |
0 |
| ODI |
0 |
12 |
25 |
168 |
527 |
227 |
0 |
0 |
| CDI |
0 |
6 |
13 |
31 |
346 |
5776 |
492 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
794 |
1258 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
87547 |
8487 |
662 |
968 |
82 |
1 |
0 |
0 |
| OW |
0 |
65 |
93 |
376 |
109 |
5 |
0 |
0 |
| VODI |
0 |
34 |
54 |
492 |
378 |
44 |
0 |
0 |
| ODI |
0 |
14 |
28 |
179 |
526 |
222 |
0 |
0 |
| CDI |
0 |
6 |
13 |
33 |
361 |
5726 |
498 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
844 |
1252 |
0 |
|
Date: 2023-07-29:
| 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 |
86934 |
9436 |
655 |
738 |
58 |
7 |
0 |
0 |
| OW |
0 |
87 |
95 |
365 |
123 |
16 |
0 |
0 |
| VODI |
0 |
36 |
48 |
471 |
370 |
57 |
0 |
0 |
| ODI |
0 |
6 |
23 |
141 |
437 |
318 |
7 |
0 |
| CDI |
0 |
2 |
17 |
26 |
239 |
4194 |
1878 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
165 |
2120 |
31 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
86934 |
9441 |
654 |
726 |
63 |
5 |
0 |
0 |
| OW |
0 |
84 |
101 |
400 |
109 |
18 |
0 |
0 |
| VODI |
0 |
30 |
43 |
442 |
386 |
63 |
0 |
0 |
| ODI |
0 |
10 |
23 |
141 |
425 |
351 |
3 |
0 |
| CDI |
0 |
2 |
17 |
32 |
244 |
4162 |
1853 |
1 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
158 |
2149 |
30 |
|
Date: 2023-07-31:
| 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 |
87102 |
9729 |
576 |
415 |
34 |
0 |
0 |
0 |
| OW |
0 |
81 |
80 |
285 |
52 |
0 |
0 |
0 |
| VODI |
0 |
55 |
111 |
630 |
297 |
21 |
0 |
0 |
| ODI |
0 |
2 |
20 |
208 |
568 |
139 |
1 |
0 |
| CDI |
0 |
0 |
2 |
14 |
195 |
3101 |
363 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
521 |
4330 |
168 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
87102 |
9728 |
588 |
517 |
51 |
0 |
0 |
0 |
| OW |
0 |
89 |
108 |
460 |
145 |
2 |
0 |
0 |
| VODI |
0 |
28 |
57 |
351 |
400 |
37 |
0 |
0 |
| ODI |
0 |
22 |
23 |
185 |
360 |
462 |
31 |
0 |
| CDI |
0 |
0 |
13 |
39 |
190 |
3249 |
2913 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
32 |
1750 |
168 |
|
Date: 2023-08-02:
| 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 |
87274 |
9533 |
543 |
659 |
47 |
0 |
0 |
0 |
| OW |
0 |
62 |
94 |
310 |
101 |
0 |
0 |
0 |
| VODI |
0 |
32 |
80 |
610 |
369 |
35 |
0 |
0 |
| ODI |
0 |
0 |
12 |
207 |
429 |
111 |
0 |
0 |
| CDI |
0 |
0 |
0 |
15 |
600 |
3157 |
359 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
1291 |
2373 |
797 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
87274 |
9502 |
551 |
801 |
82 |
0 |
0 |
0 |
| OW |
0 |
93 |
104 |
389 |
203 |
2 |
0 |
0 |
| VODI |
0 |
23 |
47 |
378 |
359 |
51 |
0 |
0 |
| ODI |
0 |
9 |
26 |
196 |
409 |
470 |
57 |
0 |
| CDI |
0 |
0 |
1 |
37 |
493 |
4064 |
1931 |
95 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
7 |
744 |
702 |
|
Date: 2023-08-04:
| 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 |
88987 |
8354 |
387 |
340 |
52 |
0 |
0 |
0 |
| OW |
0 |
103 |
101 |
331 |
100 |
0 |
0 |
0 |
| VODI |
0 |
25 |
85 |
595 |
383 |
31 |
0 |
0 |
| ODI |
0 |
7 |
12 |
186 |
344 |
100 |
1 |
0 |
| CDI |
0 |
0 |
0 |
27 |
316 |
3873 |
448 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
883 |
2186 |
843 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
88987 |
8295 |
414 |
530 |
92 |
0 |
0 |
0 |
| OW |
0 |
151 |
89 |
348 |
212 |
1 |
0 |
0 |
| VODI |
0 |
30 |
57 |
388 |
314 |
52 |
0 |
0 |
| ODI |
0 |
13 |
23 |
174 |
377 |
687 |
37 |
0 |
| CDI |
0 |
0 |
2 |
39 |
200 |
4141 |
2175 |
30 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
6 |
423 |
813 |
|
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