| OID | OID (database unique ID) - numeric datatype  A single column containing a database-unique identifier. It is this identifier which is actually used  to link all the records in all the tables to the same Occurrence. | 
                                            
                                                | ID | ID (Instance ID)  This is the instance ID in this table. | 
                                            
                                                | A136 | Rel direction to swell | 
                                            
                                                | A314 | Water condition | 
                                            
                                                | A316 | Wave height | 
                                            
                                                | A496 | ASDA, specified on metres | 
                                            
                                                | A499 | Runway identifier | 
                                            
                                                | A500 | LDA, specified in metres | 
                                            
                                                | A501 | Runway length, specified in metres | 
                                            
                                                | A502 | Runway category | 
                                            
                                                | A503 | Runway configuration | 
                                            
                                                | A506 | Runway slope | 
                                            
                                                | A507 | Stopway length, specified in metres | 
                                            
                                                | A508 | Surface treatment | 
                                            
                                                | A509 | Surface type | 
                                            
                                                | A510 | TODA, specified in metres | 
                                            
                                                | A511 | TORA, specified in metres | 
                                            
                                                | A512 | Runway preparation | 
                                            
                                                | A513 | Runway width, specified in metres | 
                                            
                                                | A799 | Clearway length, specified in metres | 
                                            
                                                | A811 | RESA length, specified in metres | 
                                            
                                                | A812 | RESA width, specified in metres | 
                                            
                                                | A813 | RESA surface type | 
                                            
                                                | A942 | Runway status | 
                                            
                                                | A136_1 | Extension to Wave height, part 1 | 
                                            
                                                | A314_1 | Extension to Water condition, part 1 | 
                                            
                                                | A316_1 | Extension to Wave height, part 1 | 
                                            
                                                | A502_1 | Extension to Runway category, part 1 | 
                                            
                                                | A503_1 | Extension to Runway configuration, part 1 | 
                                            
                                                | A506_1 | Extension to Runway slope, part 1 | 
                                            
                                                | A508_1 | Extension to Runway surface treatment, part 1 | 
                                            
                                                | A509_1 | Extension to Runway surface type, part 1 | 
                                            
                                                | A512_1 | Extension to Runway surface preparation, part 1 | 
                                            
                                                | A813_1 | Extension to RESA surface type, part 1 | 
                                            
                                                | A942_1 | Extension to Runway status, part 1 | 
                                            
                                                | A136_1_Translate | Translation of the code-value in A136_1 column. | 
                                            
                                                | A136_Translate | Translation of the code-value in A136 column. | 
                                            
                                                | A314_1_Translate | Translation of the code-value in A314_1 column. | 
                                            
                                                | A314_Translate | Translation of the code-value in A314 column. | 
                                            
                                                | A316_1_Translate | Translation of the code-value in A316_1 column. | 
                                            
                                                | A316_Translate | Translation of the code-value in A316 column. | 
                                            
                                                | A502_1_Translate | Translation of the code-value in A502_1 column. | 
                                            
                                                | A502_Translate | Translation of the code-value in A502 column. | 
                                            
                                                | A503_1_Translate | Translation of the code-value in A503_1 column. | 
                                            
                                                | A503_Translate | Translation of the code-value in A503 column. | 
                                            
                                                | A506_1_Translate | Translation of the code-value in A506_1 column. | 
                                            
                                                | A506_Translate | Translation of the code-value in A506 column. | 
                                            
                                                | A508_1_Translate | Translation of the code-value in A508_1 column. | 
                                            
                                                | A508_Translate | Translation of the code-value in A508 column. | 
                                            
                                                | A509_1_Translate | Translation of the code-value in A509_1 column. | 
                                            
                                                | A509_Translate | Translation of the code-value in A509 column. | 
                                            
                                                | A512_1_Translate | Translation of the code-value in A512_1 column. | 
                                            
                                                | A512_Translate | Translation of the code-value in A512 column. | 
                                            
                                                | A813_1_Translate | Translation of the code-value in A813_1 column. | 
                                            
                                                | A813_Translate | Translation of the code-value in A813 column. | 
                                            
                                                | A942_1_Translate | Translation of the code-value in A942_1 column. | 
                                            
                                                | A942_Translate | Translation of the code-value in A942 column. |