Quantifying Potential Measurement Errors and Uncertainties Associated with Bathymetric Change Analysis

Abstract

This Coastal and Hydraulics Engineering Technical Note (CHETN) describes procedures for quantifying error and uncertainty estimates in volume change calculated from comparison of bathymetric surveys from two different times. Initially, this procedure involves an evaluation of the error budget associated with measurement of bathymetry data from individual surveys. Survey accuracy standards are derived from U.S. Army Corps of Engineers (USACE) and National Ocean Service (NOS) hydrographic survey manuals. Next, uncertainties in bathymetric surface characteristics resulting from topographic irregularities and data density are estimated for each surface. Then, root-mean-square (RMS) variations obtained from a comparison of two surfaces are analyzed to estimate total volumetric uncertainties associated with the modeled change surface.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2002
Accession Number
ADA588888

Entities

People

  • Feng Li
  • Jessica L. Baker
  • Mark R. Byrnes

Organizations

  • Engineer Research and Development Center

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Accuracy
  • Army
  • Army Corps Of Engineers
  • Bathymetry
  • Civil Engineering
  • Coastal Engineering
  • Engineering
  • Engineers
  • Errors
  • Geographic Regions
  • Hydraulics
  • Measurement
  • Navigation
  • Quality Control
  • Sedimentation
  • Standards
  • Terrain

Fields of Study

  • Environmental science

Readers

  • Coastal and Marine Engineering/Sediment Transport/Hydraulic Engineering
  • Computational Modeling and Simulation
  • Oceanography.