15.7. The SBED Data Record - Seabed with Slope

A global seabed with a constant slope can be optionally defined for composite cables, using a reference point and the angle and direction of maximum slope.

     2   5  7    11        21        31        41        51        61 
    - --- -- ---- ---------- --------- --------- --------- --------- ---
   |X|   |  |SBED|          |         |         |         |         |   
    - --- -- ---- ---------- --------- --------- --------- --------- ---
       |  |   |        |         |         |         |         |                    
       |  |   |        |         |         |         |         |_(4) Seabed slope (degrees) (F10.0) 
       |  |   |        |         |         |         |                                          
       |  |   |        |         |         |         |_(3) Azimuth of seabed plane (degrees) (F10.0)                       
       |  |   |        |--------------------
       |  |   |        |         
       |  |   |        |_(2) (X,Y,Z) Coordinates of sea bed reference point 
       |  |   |
       |  |   |_(1)Compulsory Data Record Keyword (A4)
       |  |
       |  |_Optional User Identifier (A2)
       |
       |_Compulsory END on last data record in data category (A3)
(2) This is a point on the seabed.
(3) This is the direction of greatest slope relative to the global X-axis, using the same convention as for wind and current direction.
(4) Global seabed slope must be not less than zero and not greater than 30°. A positive slope is up in the direction given by (3). The local seabed slope definition for any structure-anchor composite cable using the COMP data record will be ignored if a SBED data record exists.