Validation of sea ice concentration - European sector
Bulletin date: 2023-04-20
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-04-14:
| 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 |
62843 |
19858 |
1621 |
845 |
307 |
70 |
23 |
0 |
| OW |
52 |
246 |
133 |
325 |
245 |
116 |
52 |
0 |
| VODI |
0 |
122 |
109 |
256 |
324 |
215 |
87 |
0 |
| ODI |
0 |
54 |
47 |
142 |
297 |
293 |
136 |
0 |
| CDI |
0 |
62 |
20 |
79 |
339 |
901 |
983 |
0 |
| VCDI |
0 |
12 |
10 |
76 |
493 |
3330 |
8968 |
5009 |
|
...date precedes bulletin
|
Date: 2023-04-16:
| 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 |
61932 |
19853 |
2634 |
865 |
341 |
98 |
41 |
0 |
| OW |
52 |
254 |
176 |
277 |
191 |
113 |
58 |
0 |
| VODI |
0 |
160 |
117 |
275 |
290 |
182 |
72 |
0 |
| ODI |
0 |
83 |
54 |
150 |
227 |
280 |
155 |
0 |
| CDI |
0 |
53 |
36 |
111 |
383 |
922 |
888 |
0 |
| VCDI |
0 |
9 |
22 |
96 |
590 |
4436 |
8445 |
4179 |
|
...date precedes bulletin
|
Date: 2023-04-18:
| 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 |
61245 |
19822 |
3758 |
853 |
266 |
36 |
29 |
0 |
| OW |
51 |
203 |
242 |
379 |
213 |
55 |
31 |
0 |
| VODI |
0 |
80 |
126 |
326 |
348 |
164 |
19 |
0 |
| ODI |
0 |
33 |
30 |
129 |
335 |
353 |
125 |
0 |
| CDI |
0 |
18 |
23 |
87 |
351 |
915 |
707 |
0 |
| VCDI |
0 |
17 |
11 |
79 |
374 |
4312 |
8519 |
4436 |
|
...date precedes bulletin
|
Date: 2023-04-20:
| 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 |
59927 |
20914 |
3834 |
1009 |
261 |
57 |
53 |
0 |
| OW |
51 |
273 |
187 |
331 |
270 |
90 |
33 |
0 |
| VODI |
0 |
75 |
93 |
268 |
314 |
246 |
97 |
0 |
| ODI |
0 |
28 |
29 |
184 |
271 |
291 |
225 |
0 |
| CDI |
0 |
23 |
12 |
120 |
456 |
680 |
729 |
0 |
| VCDI |
0 |
10 |
6 |
61 |
766 |
3681 |
8844 |
4301 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
59927 |
21054 |
3866 |
1020 |
290 |
65 |
57 |
0 |
| OW |
51 |
149 |
152 |
337 |
242 |
83 |
30 |
0 |
| VODI |
0 |
60 |
95 |
243 |
305 |
231 |
87 |
0 |
| ODI |
0 |
26 |
27 |
186 |
264 |
301 |
234 |
0 |
| CDI |
0 |
22 |
15 |
119 |
446 |
645 |
738 |
0 |
| VCDI |
0 |
12 |
6 |
68 |
791 |
3720 |
8835 |
4301 |
|
Date: 2023-04-22:
| 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 |
61447 |
20357 |
2678 |
953 |
332 |
71 |
54 |
0 |
| OW |
51 |
256 |
136 |
335 |
266 |
130 |
31 |
0 |
| VODI |
0 |
145 |
109 |
243 |
299 |
257 |
94 |
0 |
| ODI |
0 |
47 |
39 |
134 |
252 |
358 |
196 |
0 |
| CDI |
0 |
33 |
19 |
121 |
396 |
1003 |
812 |
0 |
| VCDI |
0 |
5 |
20 |
94 |
463 |
4002 |
8940 |
3922 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
61447 |
20501 |
2708 |
1040 |
349 |
85 |
61 |
0 |
| OW |
51 |
169 |
149 |
281 |
254 |
122 |
30 |
0 |
| VODI |
0 |
93 |
75 |
213 |
290 |
250 |
90 |
0 |
| ODI |
0 |
45 |
33 |
128 |
245 |
334 |
177 |
0 |
| CDI |
0 |
28 |
16 |
110 |
383 |
984 |
817 |
0 |
| VCDI |
0 |
7 |
20 |
108 |
487 |
4046 |
8952 |
3922 |
|
Date: 2023-04-24:
| 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 |
61610 |
20177 |
2632 |
1059 |
344 |
134 |
57 |
0 |
| OW |
59 |
160 |
125 |
390 |
325 |
177 |
40 |
0 |
| VODI |
5 |
66 |
73 |
271 |
291 |
270 |
134 |
0 |
| ODI |
5 |
27 |
28 |
139 |
330 |
347 |
233 |
0 |
| CDI |
5 |
16 |
23 |
118 |
397 |
935 |
864 |
0 |
| VCDI |
1 |
3 |
18 |
130 |
605 |
3859 |
7810 |
4808 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
61603 |
20179 |
2631 |
1147 |
454 |
156 |
70 |
0 |
| OW |
63 |
139 |
114 |
302 |
266 |
181 |
32 |
0 |
| VODI |
7 |
70 |
79 |
227 |
282 |
234 |
135 |
0 |
| ODI |
6 |
36 |
36 |
143 |
279 |
361 |
204 |
0 |
| CDI |
5 |
18 |
17 |
140 |
395 |
962 |
904 |
0 |
| VCDI |
1 |
7 |
22 |
148 |
616 |
3828 |
7793 |
4808 |
|
Date: 2023-04-26:
| 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 |
67553 |
16480 |
525 |
859 |
493 |
207 |
71 |
0 |
| OW |
59 |
196 |
76 |
284 |
339 |
182 |
37 |
0 |
| VODI |
0 |
102 |
34 |
211 |
383 |
329 |
119 |
0 |
| ODI |
0 |
58 |
27 |
99 |
331 |
390 |
239 |
0 |
| CDI |
0 |
36 |
20 |
82 |
353 |
980 |
926 |
0 |
| VCDI |
0 |
15 |
25 |
125 |
409 |
3378 |
7874 |
5194 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67553 |
16438 |
527 |
880 |
572 |
242 |
73 |
0 |
| OW |
59 |
191 |
77 |
248 |
306 |
185 |
29 |
0 |
| VODI |
0 |
127 |
33 |
199 |
328 |
319 |
109 |
0 |
| ODI |
0 |
64 |
25 |
109 |
323 |
367 |
203 |
0 |
| CDI |
0 |
44 |
17 |
90 |
375 |
1032 |
926 |
0 |
| VCDI |
0 |
23 |
28 |
134 |
404 |
3321 |
7926 |
5194 |
|
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 |
16914 |
478 |
736 |
462 |
178 |
50 |
0 |
| OW |
59 |
229 |
100 |
302 |
330 |
167 |
34 |
0 |
| VODI |
0 |
114 |
54 |
237 |
398 |
282 |
135 |
0 |
| ODI |
0 |
60 |
25 |
111 |
320 |
380 |
174 |
0 |
| CDI |
0 |
30 |
18 |
89 |
340 |
998 |
678 |
0 |
| VCDI |
0 |
34 |
30 |
110 |
414 |
3564 |
7579 |
5358 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67529 |
16852 |
473 |
760 |
545 |
196 |
46 |
0 |
| OW |
59 |
242 |
92 |
273 |
295 |
170 |
35 |
0 |
| VODI |
0 |
150 |
65 |
195 |
355 |
272 |
117 |
0 |
| ODI |
0 |
61 |
24 |
126 |
263 |
346 |
151 |
0 |
| CDI |
0 |
42 |
21 |
124 |
367 |
1099 |
787 |
0 |
| VCDI |
0 |
34 |
30 |
107 |
439 |
3486 |
7514 |
5358 |
|
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