Validation of sea ice concentration - European sector
 Bulletin date: 2023-03-21
 Data source: OSI SAF N.H. sea ice concentration
 Model vs. observations, sea ice class contingency tables
 Date: 2023-03-21:
 | Forecast | 
 | 
|  | observations |  
|  | Ice free | Ice free near MIZ
 | OW | VODI | ODI | CDI | VCDI near MIZ
 | VCDI |  
| m o
 d
 e
 l
 | Ice free | 16787 | 15320 | 0 | 789 | 510 | 62 | 5 | 0 |  
| OW | 0 | 140 | 0 | 133 | 103 | 20 | 0 | 0 |  
| VODI | 0 | 133 | 0 | 153 | 161 | 41 | 7 | 0 |  
| ODI | 0 | 72 | 0 | 123 | 172 | 54 | 20 | 0 |  
| CDI | 0 | 63 | 0 | 137 | 377 | 241 | 344 | 61 |  
| VCDI | 0 | 19 | 0 | 123 | 982 | 3733 | 9133 | 6650 |  | 
 Date: 2023-03-23:
 | Forecast | 
 | 
|  | observations |  
|  | Ice free | Ice free near MIZ
 | OW | VODI | ODI | CDI | VCDI near MIZ
 | VCDI |  
| m o
 d
 e
 l
 | Ice free | 16645 | 15338 | 0 | 852 | 664 | 97 | 4 | 0 |  
| OW | 0 | 85 | 0 | 73 | 92 | 22 | 3 | 0 |  
| VODI | 0 | 95 | 0 | 108 | 146 | 60 | 7 | 0 |  
| ODI | 0 | 70 | 0 | 78 | 165 | 97 | 44 | 0 |  
| CDI | 0 | 53 | 0 | 122 | 317 | 386 | 406 | 5 |  
| VCDI | 0 | 30 | 0 | 159 | 995 | 3505 | 9162 | 6783 |  | 
 Date: 2023-03-25:
 | Forecast | 
 | 
|  | observations |  
|  | Ice free | Ice free near MIZ
 | OW | VODI | ODI | CDI | VCDI near MIZ
 | VCDI |  
| m o
 d
 e
 l
 | Ice free | 16483 | 15289 | 0 | 839 | 784 | 191 | 8 | 0 |  
| OW | 0 | 84 | 0 | 69 | 92 | 41 | 2 | 0 |  
| VODI | 0 | 82 | 0 | 97 | 129 | 65 | 15 | 0 |  
| ODI | 0 | 59 | 0 | 69 | 161 | 137 | 72 | 5 |  
| CDI | 0 | 43 | 0 | 110 | 305 | 436 | 571 | 46 |  
| VCDI | 0 | 31 | 0 | 128 | 1002 | 3272 | 8613 | 7338 |  | 
 Date: 2023-03-27:
 | Forecast | 
 | 
|  | observations |  
|  | Ice free | Ice free near MIZ
 | OW | VODI | ODI | CDI | VCDI near MIZ
 | VCDI |  
| m o
 d
 e
 l
 | Ice free | 15202 | 16262 | 0 | 978 | 875 | 203 | 0 | 0 |  
| OW | 0 | 66 | 0 | 60 | 81 | 43 | 2 | 0 |  
| VODI | 0 | 79 | 0 | 91 | 145 | 65 | 9 | 0 |  
| ODI | 0 | 62 | 0 | 79 | 164 | 185 | 117 | 1 |  
| CDI | 0 | 43 | 0 | 121 | 326 | 467 | 559 | 47 |  
| VCDI | 0 | 29 | 0 | 127 | 924 | 3151 | 8267 | 7838 |  | 
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