Validation of sea ice concentration - European sector
 Bulletin date: 2024-04-09
 Data source: OSI SAF N.H. sea ice concentration
 Model vs. observations, sea ice class contingency tables
 Date: 2024-04-09:
 | Forecast | 
 | 
|  | observations |  
|  | Ice free | Ice free near MIZ
 | OW | VODI | ODI | CDI | VCDI near MIZ
 | VCDI |  
| m o
 d
 e
 l
 | Ice free | 13850 | 14814 | 110 | 729 | 228 | 39 | 0 | 0 |  
| OW | 0 | 207 | 6 | 147 | 78 | 19 | 0 | 0 |  
| VODI | 0 | 379 | 25 | 259 | 118 | 53 | 1 | 0 |  
| ODI | 0 | 260 | 26 | 286 | 235 | 96 | 58 | 0 |  
| CDI | 0 | 167 | 34 | 413 | 538 | 697 | 795 | 42 |  
| VCDI | 0 | 88 | 21 | 615 | 1365 | 2586 | 9698 | 7586 |  | 
 Date: 2024-04-11:
 | Forecast | 
 | 
|  | observations |  
|  | Ice free | Ice free near MIZ
 | OW | VODI | ODI | CDI | VCDI near MIZ
 | VCDI |  
| m o
 d
 e
 l
 | Ice free | 14166 | 14937 | 143 | 1030 | 401 | 71 | 2 | 0 |  
| OW | 0 | 137 | 14 | 116 | 53 | 29 | 9 | 0 |  
| VODI | 0 | 185 | 14 | 173 | 110 | 62 | 18 | 0 |  
| ODI | 0 | 147 | 9 | 226 | 254 | 174 | 106 | 0 |  
| CDI | 0 | 129 | 13 | 373 | 682 | 827 | 761 | 118 |  
| VCDI | 0 | 58 | 14 | 592 | 1524 | 2825 | 8108 | 8058 |  | 
 Date: 2024-04-13:
 | Forecast | 
 | 
|  | observations |  
|  | Ice free | Ice free near MIZ
 | OW | VODI | ODI | CDI | VCDI near MIZ
 | VCDI |  
| m o
 d
 e
 l
 | Ice free | 14091 | 15083 | 118 | 1143 | 405 | 76 | 11 | 0 |  
| OW | 0 | 109 | 6 | 138 | 50 | 25 | 7 | 0 |  
| VODI | 0 | 142 | 9 | 231 | 126 | 57 | 7 | 0 |  
| ODI | 0 | 174 | 19 | 306 | 248 | 131 | 58 | 0 |  
| CDI | 0 | 175 | 25 | 396 | 710 | 742 | 721 | 109 |  
| VCDI | 0 | 84 | 31 | 598 | 1392 | 2500 | 8755 | 7660 |  | 
 Date: 2024-04-15:
 | Forecast | 
 | 
|  | observations |  
|  | Ice free | Ice free near MIZ
 | OW | VODI | ODI | CDI | VCDI near MIZ
 | VCDI |  
| m o
 d
 e
 l
 | Ice free | 14717 | 14745 | 120 | 909 | 423 | 175 | 18 | 1 |  
| OW | 0 | 136 | 13 | 123 | 43 | 36 | 6 | 0 |  
| VODI | 0 | 211 | 10 | 216 | 167 | 59 | 12 | 1 |  
| ODI | 0 | 207 | 15 | 344 | 299 | 112 | 49 | 14 |  
| CDI | 0 | 190 | 17 | 429 | 640 | 594 | 610 | 143 |  
| VCDI | 0 | 166 | 30 | 557 | 1516 | 3261 | 6873 | 8461 |  | 
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