Figure F16. Summary of the significant depth dimensions on the ship. The drillers commonly use the depth below the dual elevator stool (DES). The echo sounder depth corrected by Matthews' Tables gives the depth to the sonar dome. DP is the dynamic positioning control room. PDR refers to the depth from the precision depth recorder. (This figure was provided courtesy of the ODP underway geophysics technicians.)

Figure F16. Summary of the significant depth dimensions on the ship. The drillers commonly use the depth below the dual elevator stool (DES). The echo sounder depth corrected by Matthews' Tables gives the depth to the sonar dome. DP is the dynamic positioning control room. PDR refers to the depth from the precision depth recorder. (This figure was provided courtesy of the ODP underway geophysics technicians.)