Validation of sea ice concentration - European sector
 Bulletin date: 2023-10-03
 Data source: OSI SAF N.H. sea ice concentration
 Model vs. observations, sea ice class contingency tables
 Date: 2023-10-03:
 | Forecast | 
 | 
|  | observations |  
|  | Ice free | Ice free near MIZ
 | OW | VODI | ODI | CDI | VCDI near MIZ
 | VCDI |  
| m o
 d
 e
 l
 | Ice free | 41304 | 4106 | 42 | 393 | 101 | 33 | 1 | 0 |  
| OW | 0 | 137 | 12 | 109 | 45 | 17 | 0 | 0 |  
| VODI | 0 | 111 | 14 | 156 | 64 | 58 | 1 | 0 |  
| ODI | 0 | 30 | 2 | 98 | 61 | 55 | 6 | 0 |  
| CDI | 0 | 21 | 1 | 53 | 104 | 186 | 197 | 23 |  
| VCDI | 0 | 3 | 1 | 37 | 199 | 2021 | 6233 | 633 |  | 
 Date: 2023-10-05:
 | Forecast | 
 | 
|  | observations |  
|  | Ice free | Ice free near MIZ
 | OW | VODI | ODI | CDI | VCDI near MIZ
 | VCDI |  
| m o
 d
 e
 l
 | Ice free | 40878 | 4452 | 33 | 425 | 290 | 105 | 20 | 0 |  
| OW | 0 | 65 | 3 | 52 | 27 | 8 | 5 | 0 |  
| VODI | 0 | 71 | 3 | 79 | 20 | 26 | 9 | 0 |  
| ODI | 0 | 34 | 7 | 102 | 39 | 25 | 13 | 0 |  
| CDI | 0 | 19 | 9 | 66 | 81 | 88 | 134 | 2 |  
| VCDI | 0 | 3 | 6 | 99 | 314 | 1857 | 6261 | 938 |  | 
 Date: 2023-10-07:
 | Forecast | 
 | 
|  | observations |  
|  | Ice free | Ice free near MIZ
 | OW | VODI | ODI | CDI | VCDI near MIZ
 | VCDI |  
| m o
 d
 e
 l
 | Ice free | 41204 | 4144 | 27 | 350 | 274 | 181 | 51 | 0 |  
| OW | 0 | 48 | 1 | 35 | 4 | 1 | 10 | 0 |  
| VODI | 0 | 77 | 5 | 33 | 9 | 5 | 27 | 0 |  
| ODI | 0 | 68 | 10 | 64 | 20 | 7 | 21 | 0 |  
| CDI | 0 | 41 | 6 | 80 | 69 | 55 | 273 | 36 |  
| VCDI | 0 | 57 | 8 | 161 | 302 | 1525 | 6012 | 1367 |  | 
 Date: 2023-10-09:
 | Forecast | 
 | 
|  | observations |  
|  | Ice free | Ice free near MIZ
 | OW | VODI | ODI | CDI | VCDI near MIZ
 | VCDI |  
| m o
 d
 e
 l
 | Ice free | 40708 | 4403 | 40 | 505 | 417 | 123 | 3 | 0 |  
| OW | 0 | 33 | 3 | 23 | 12 | 14 | 0 | 0 |  
| VODI | 0 | 51 | 9 | 47 | 18 | 15 | 10 | 0 |  
| ODI | 0 | 30 | 3 | 50 | 41 | 20 | 11 | 0 |  
| CDI | 0 | 38 | 4 | 75 | 85 | 115 | 224 | 50 |  
| VCDI | 0 | 55 | 21 | 165 | 319 | 1806 | 6153 | 969 |  | 
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