Automated Quantification of Gradient Defined Features

Abstract

We present the summary and application of a new MATLAB/GIS technique for the quantification of gradient defined features in submarine environments. The technique utilizes MATLAB scripts to convert bathymetry data into a gradient dataset, produce gradient maps, and most importantly, automate the process of defining and characterizing gradient defined features such as flows, faults, landslide scarps, folds, valleys, and ridges. The features are defined according to strict gradient threshold criteria that are quantifiable and reproducible. The technique also calculates volumes of features with irregular surface boundaries, as well as other calculations such as vertical and horizontal lengths, underlying slopes, slope corrected distal edge thickness, yield strength, etc. The technique can also be used in non-topographic applications that have gradient data such as temperature gradients, nutrient densities, etc.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2008
Accession Number
ADA502638

Entities

People

  • A. J. Harris
  • J. Escartin
  • P. Fryer
  • T. Fedenczuk

Organizations

  • University of HawaiĘ»i System

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Abstracts
  • Algorithms
  • Bathymetry
  • Boundaries
  • Data Sets
  • Flow
  • Flow Fields
  • Geographic Information Systems
  • Grids
  • High Performance Computing
  • High Resolution
  • Information Operations
  • Information Systems
  • Seamounts
  • Temperature Gradients
  • Thickness
  • Yield Strength

Readers

  • Computational Modeling and Simulation
  • Geotechnical Engineering.
  • Oceanography.