Validation of sea ice concentration - European sector
 Bulletin date: 2023-12-05
 Data source: OSI SAF N.H. sea ice concentration
 Model vs. observations, sea ice class contingency tables
 Date: 2023-12-05:
 | Forecast | 
 | 
|  | observations |  
|  | Ice free | Ice free near MIZ
 | OW | VODI | ODI | CDI | VCDI near MIZ
 | VCDI |  
| m o
 d
 e
 l
 | Ice free | 27476 | 10787 | 110 | 521 | 334 | 260 | 14 | 0 |  
| OW | 9 | 164 | 16 | 104 | 20 | 6 | 1 | 0 |  
| VODI | 9 | 219 | 16 | 242 | 44 | 7 | 2 | 0 |  
| ODI | 0 | 171 | 18 | 368 | 145 | 9 | 3 | 0 |  
| CDI | 0 | 125 | 11 | 314 | 448 | 144 | 120 | 2 |  
| VCDI | 0 | 27 | 3 | 290 | 997 | 2065 | 7435 | 3612 |  | 
 Date: 2023-12-07:
 | Forecast | 
 | 
|  | observations |  
|  | Ice free | Ice free near MIZ
 | OW | VODI | ODI | CDI | VCDI near MIZ
 | VCDI |  
| m o
 d
 e
 l
 | Ice free | 26875 | 11574 | 162 | 986 | 378 | 317 | 36 | 0 |  
| OW | 1 | 43 | 8 | 81 | 35 | 8 | 0 | 0 |  
| VODI | 0 | 48 | 8 | 137 | 64 | 7 | 1 | 0 |  
| ODI | 0 | 46 | 7 | 140 | 99 | 31 | 5 | 0 |  
| CDI | 0 | 82 | 10 | 194 | 222 | 201 | 116 | 8 |  
| VCDI | 0 | 70 | 8 | 400 | 882 | 2157 | 7338 | 3883 |  | 
 Date: 2023-12-09:
 | Forecast | 
 | 
|  | observations |  
|  | Ice free | Ice free near MIZ
 | OW | VODI | ODI | CDI | VCDI near MIZ
 | VCDI |  
| m o
 d
 e
 l
 | Ice free | 27416 | 10600 | 82 | 1193 | 581 | 409 | 108 | 0 |  
| OW | 0 | 51 | 5 | 64 | 35 | 15 | 2 | 0 |  
| VODI | 0 | 63 | 5 | 104 | 66 | 23 | 0 | 0 |  
| ODI | 0 | 56 | 4 | 84 | 83 | 53 | 2 | 2 |  
| CDI | 0 | 54 | 5 | 97 | 114 | 160 | 193 | 72 |  
| VCDI | 0 | 105 | 27 | 466 | 848 | 2168 | 6429 | 4824 |  | 
 Date: 2023-12-11:
 | Forecast | 
 | 
|  | observations |  
|  | Ice free | Ice free near MIZ
 | OW | VODI | ODI | CDI | VCDI near MIZ
 | VCDI |  
| m o
 d
 e
 l
 | Ice free | 26862 | 11062 | 162 | 1088 | 493 | 331 | 264 | 0 |  
| OW | 0 | 47 | 10 | 65 | 36 | 15 | 1 | 0 |  
| VODI | 0 | 81 | 3 | 115 | 49 | 19 | 2 | 0 |  
| ODI | 0 | 52 | 12 | 102 | 61 | 29 | 5 | 8 |  
| CDI | 0 | 53 | 7 | 130 | 128 | 181 | 271 | 113 |  
| VCDI | 0 | 151 | 31 | 565 | 983 | 2065 | 6204 | 4812 |  | 
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