Hydrography - Depth Determination

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  1. the Single Beam Echo Sounders Need Two Calibrations:
    • 1. Draft
    • 2. Speed of Sound
  2. Bar Check Calibration:
    Lowering a bar to a known depth to determine velocity.
  3. Settlement?
    Elevation change in respect to speed of the of the vessel.
  4. Squat
    Change in trim (Bow up/ Stern down) due to the vessel's speed
  5. Boat Layout
    Image Upload
  6. Check Lines?
    Lines perpendicular to the primary lines with spacing up to 15 times the primary. Used to check consistency of survey.
  7. Shoal?
    An area that is shallower than the its surroundings.
Author:
Juanton
ID:
251261
Card Set:
Hydrography - Depth Determination
Updated:
2013-12-06 16:05:24
Tags:
SURV 3369
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Description:
Depth Determination
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