Validation of sea ice concentration - European sector
 Bulletin date: 2023-10-17
 Data source: OSI SAF N.H. sea ice concentration
 Model vs. observations, sea ice class contingency tables
 Date: 2023-10-17:
 | Forecast | 
 | 
|  | observations |  
|  | Ice free | Ice free near MIZ
 | OW | VODI | ODI | CDI | VCDI near MIZ
 | VCDI |  
| m o
 d
 e
 l
 | Ice free | 39060 | 6125 | 28 | 239 | 47 | 34 | 6 | 0 |  
| OW | 0 | 73 | 9 | 82 | 27 | 33 | 5 | 0 |  
| VODI | 0 | 67 | 17 | 97 | 33 | 54 | 17 | 0 |  
| ODI | 0 | 47 | 13 | 148 | 49 | 29 | 13 | 0 |  
| CDI | 0 | 19 | 0 | 254 | 160 | 87 | 85 | 7 |  
| VCDI | 0 | 1 | 0 | 75 | 441 | 1692 | 5097 | 2398 |  | 
 Date: 2023-10-19:
 | Forecast | 
 | 
|  | observations |  
|  | Ice free | Ice free near MIZ
 | OW | VODI | ODI | CDI | VCDI near MIZ
 | VCDI |  
| m o
 d
 e
 l
 | Ice free | 38574 | 6346 | 57 | 553 | 134 | 109 | 0 | 0 |  
| OW | 0 | 40 | 4 | 43 | 27 | 21 | 0 | 0 |  
| VODI | 0 | 51 | 14 | 69 | 45 | 36 | 0 | 0 |  
| ODI | 0 | 28 | 5 | 72 | 83 | 31 | 0 | 0 |  
| CDI | 0 | 32 | 3 | 109 | 169 | 82 | 18 | 0 |  
| VCDI | 0 | 14 | 0 | 145 | 506 | 2587 | 4902 | 1759 |  | 
 Date: 2023-10-21:
 | Forecast | 
 | 
|  | observations |  
|  | Ice free | Ice free near MIZ
 | OW | VODI | ODI | CDI | VCDI near MIZ
 | VCDI |  
| m o
 d
 e
 l
 | Ice free | 39852 | 4986 | 64 | 321 | 118 | 129 | 0 | 0 |  
| OW | 0 | 42 | 10 | 40 | 10 | 21 | 0 | 0 |  
| VODI | 0 | 63 | 8 | 66 | 16 | 24 | 0 | 0 |  
| ODI | 0 | 53 | 13 | 87 | 48 | 21 | 0 | 0 |  
| CDI | 0 | 46 | 7 | 121 | 121 | 97 | 32 | 5 |  
| VCDI | 0 | 3 | 7 | 353 | 551 | 2189 | 5466 | 1678 |  | 
 Date: 2023-10-23:
 | Forecast | 
 | 
|  | observations |  
|  | Ice free | Ice free near MIZ
 | OW | VODI | ODI | CDI | VCDI near MIZ
 | VCDI |  
| m o
 d
 e
 l
 | Ice free | 39846 | 4985 | 40 | 316 | 107 | 161 | 0 | 0 |  
| OW | 7 | 52 | 3 | 28 | 10 | 14 | 0 | 0 |  
| VODI | 11 | 67 | 5 | 68 | 22 | 19 | 0 | 0 |  
| ODI | 0 | 97 | 3 | 68 | 50 | 20 | 1 | 0 |  
| CDI | 0 | 69 | 4 | 68 | 117 | 182 | 153 | 8 |  
| VCDI | 0 | 144 | 9 | 131 | 505 | 2106 | 5652 | 1520 |  | 
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