Validation of sea ice concentration - European sector
Bulletin date: 2023-11-23
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-11-17:
| 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 |
73143 |
8267 |
178 |
344 |
103 |
7 |
0 |
0 |
| OW |
1012 |
557 |
142 |
315 |
242 |
52 |
1 |
0 |
| VODI |
3357 |
86 |
88 |
305 |
417 |
47 |
7 |
0 |
| ODI |
0 |
18 |
9 |
113 |
461 |
168 |
8 |
0 |
| CDI |
0 |
7 |
12 |
47 |
363 |
832 |
239 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
45 |
754 |
7837 |
3273 |
|
...date precedes bulletin
|
Date: 2023-11-19:
| 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 |
72775 |
8513 |
110 |
186 |
75 |
16 |
0 |
0 |
| OW |
990 |
706 |
133 |
263 |
167 |
59 |
2 |
0 |
| VODI |
3209 |
189 |
139 |
412 |
189 |
56 |
9 |
0 |
| ODI |
163 |
21 |
24 |
267 |
276 |
145 |
12 |
0 |
| CDI |
0 |
13 |
18 |
76 |
358 |
968 |
399 |
0 |
| VCDI |
0 |
0 |
0 |
11 |
30 |
681 |
7680 |
3522 |
|
...date precedes bulletin
|
Date: 2023-11-21:
| 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 |
72425 |
8451 |
163 |
266 |
101 |
10 |
0 |
0 |
| OW |
979 |
705 |
106 |
199 |
125 |
27 |
0 |
0 |
| VODI |
2941 |
195 |
145 |
408 |
439 |
71 |
1 |
0 |
| ODI |
441 |
18 |
25 |
183 |
586 |
148 |
11 |
0 |
| CDI |
0 |
18 |
14 |
52 |
453 |
895 |
431 |
0 |
| VCDI |
0 |
8 |
5 |
11 |
40 |
658 |
7853 |
3255 |
|
...date precedes bulletin
|
Date: 2023-11-23:
| 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 |
72701 |
7777 |
297 |
274 |
149 |
60 |
0 |
0 |
| OW |
983 |
664 |
210 |
142 |
116 |
87 |
8 |
0 |
| VODI |
2885 |
354 |
183 |
359 |
209 |
96 |
53 |
0 |
| ODI |
500 |
102 |
70 |
355 |
226 |
70 |
25 |
0 |
| CDI |
0 |
87 |
44 |
284 |
932 |
530 |
60 |
0 |
| VCDI |
0 |
68 |
34 |
90 |
421 |
2825 |
7076 |
1456 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
72702 |
7825 |
338 |
286 |
153 |
61 |
0 |
0 |
| OW |
982 |
625 |
215 |
144 |
122 |
89 |
10 |
0 |
| VODI |
2887 |
348 |
140 |
351 |
222 |
95 |
53 |
0 |
| ODI |
498 |
96 |
61 |
343 |
219 |
79 |
29 |
0 |
| CDI |
0 |
89 |
50 |
296 |
978 |
487 |
47 |
0 |
| VCDI |
0 |
69 |
34 |
84 |
359 |
2857 |
7083 |
1456 |
|
Date: 2023-11-25:
| 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 |
72236 |
8207 |
135 |
183 |
163 |
10 |
0 |
0 |
| OW |
974 |
758 |
121 |
203 |
134 |
67 |
7 |
0 |
| VODI |
2816 |
414 |
135 |
311 |
231 |
171 |
26 |
0 |
| ODI |
576 |
195 |
76 |
283 |
167 |
167 |
17 |
0 |
| CDI |
0 |
93 |
78 |
429 |
656 |
988 |
125 |
0 |
| VCDI |
0 |
42 |
20 |
62 |
187 |
2435 |
6376 |
2588 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
72238 |
8311 |
137 |
215 |
171 |
12 |
0 |
0 |
| OW |
972 |
691 |
125 |
184 |
147 |
65 |
10 |
0 |
| VODI |
2818 |
374 |
132 |
298 |
222 |
175 |
26 |
0 |
| ODI |
574 |
180 |
69 |
275 |
177 |
186 |
19 |
0 |
| CDI |
0 |
120 |
84 |
441 |
660 |
962 |
86 |
0 |
| VCDI |
0 |
33 |
18 |
58 |
161 |
2438 |
6410 |
2588 |
|
Date: 2023-11-27:
| 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 |
71391 |
8886 |
181 |
265 |
116 |
7 |
0 |
0 |
| OW |
973 |
1081 |
178 |
194 |
147 |
55 |
0 |
0 |
| VODI |
2831 |
235 |
154 |
364 |
262 |
97 |
0 |
0 |
| ODI |
559 |
63 |
56 |
297 |
445 |
232 |
10 |
0 |
| CDI |
0 |
90 |
33 |
188 |
611 |
1684 |
192 |
0 |
| VCDI |
0 |
3 |
6 |
12 |
81 |
2562 |
6734 |
1587 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
71387 |
8671 |
193 |
325 |
154 |
23 |
0 |
0 |
| OW |
970 |
661 |
82 |
153 |
251 |
109 |
0 |
0 |
| VODI |
2752 |
504 |
103 |
142 |
242 |
277 |
13 |
0 |
| ODI |
645 |
260 |
66 |
186 |
207 |
286 |
14 |
0 |
| CDI |
0 |
177 |
136 |
411 |
592 |
948 |
73 |
0 |
| VCDI |
0 |
85 |
28 |
103 |
216 |
2994 |
6836 |
1587 |
|
Date: 2023-11-29:
| 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 |
72281 |
7919 |
146 |
223 |
157 |
34 |
0 |
0 |
| OW |
1002 |
1085 |
112 |
134 |
116 |
34 |
0 |
0 |
| VODI |
2767 |
407 |
155 |
315 |
169 |
47 |
1 |
0 |
| ODI |
630 |
127 |
68 |
310 |
422 |
265 |
6 |
0 |
| CDI |
0 |
87 |
49 |
236 |
871 |
1452 |
133 |
0 |
| VCDI |
0 |
7 |
8 |
28 |
102 |
1958 |
6681 |
2318 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
72235 |
7488 |
149 |
211 |
166 |
33 |
0 |
0 |
| OW |
1020 |
864 |
71 |
147 |
185 |
67 |
1 |
0 |
| VODI |
2717 |
660 |
98 |
217 |
202 |
198 |
10 |
0 |
| ODI |
708 |
298 |
70 |
184 |
261 |
190 |
13 |
0 |
| CDI |
0 |
259 |
129 |
427 |
845 |
1026 |
36 |
0 |
| VCDI |
0 |
63 |
21 |
60 |
178 |
2276 |
6761 |
2318 |
|
Date: 2023-12-01:
| 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 |
72114 |
8233 |
116 |
155 |
181 |
89 |
0 |
0 |
| OW |
968 |
986 |
122 |
135 |
60 |
98 |
0 |
0 |
| VODI |
2688 |
410 |
148 |
282 |
168 |
125 |
2 |
0 |
| ODI |
716 |
126 |
102 |
299 |
278 |
256 |
21 |
0 |
| CDI |
0 |
51 |
25 |
132 |
357 |
1130 |
355 |
0 |
| VCDI |
0 |
25 |
15 |
55 |
151 |
1240 |
7441 |
3007 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
72011 |
7369 |
99 |
154 |
163 |
83 |
0 |
0 |
| OW |
1048 |
1068 |
71 |
70 |
64 |
169 |
2 |
0 |
| VODI |
2632 |
811 |
124 |
229 |
124 |
163 |
53 |
0 |
| ODI |
795 |
318 |
108 |
246 |
172 |
206 |
11 |
0 |
| CDI |
0 |
223 |
108 |
294 |
522 |
1222 |
352 |
0 |
| VCDI |
0 |
42 |
18 |
65 |
150 |
1095 |
7401 |
3007 |
|
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