AN INTEGRATED SELECTIVE KEY FOR THE PHOTO IDENTIFICATION OF IRRIGATION STRUCTURES OF A GRAVITY-FLOW IRRIGATION SYSTEM

Abstract

Studies were carried out of the aerial photographic identification of structures associated with the Greenfields Irrigation District in Montana. Photointerpretation of vertical stereopairs was integrated with detailed field observations of gravity-flow irrigation structures and associated farm practices. Three elements were determined as being necessary in the identification of such structures: (1) a key for the identification of storage facilities; (2) a key for identifying the carriage system structures; and (3) a key for the identification of distribution features.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1953
Accession Number
AD0014975

Entities

People

  • Clyde F. Kohn

Organizations

  • Northwestern University

Tags

DTIC Thesaurus Topics

  • Aerial Photographs
  • Concrete
  • Construction
  • Dams
  • Earth Fills
  • Earth Sciences
  • Embankments
  • Geography
  • Groundwater
  • Irrigation Systems
  • Materials
  • Navy
  • Photographs
  • Photography
  • Stilling Basins
  • United States
  • United States Government

Readers

  • Computer Vision.
  • Hydraulic Engineering.
  • Systems Analysis and Design