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Remote sensing signature analysis of ASTER imagery for geological mapping of Gasus area, central eastern desert, Egypt

  • Osama El GhrabawyEmail author
  • Nehal Soliman
  • Ahmed Tarshan
Review Paper
  • 58 Downloads

Abstract

The using of processed ASTER images and ASTER-GDEM (Advanced Spaceborne Thermal Emission and Reflection Radiometer-global digital elevation model) supplemented by extensive geological field work and spectral measurements of field samples enabled the creating of a new geological map of Gasus area. SVM (Support Vector Machine) method obtained 86% as overall accuracy of the classification and was verified by previous published maps and field verifications. Structure lineaments were automatically extracted and directional analysis of the automatically extracted lineament maps showing that the major trend of the lineaments are NW-SE and NNW-SSE, while NNE-SSW and NE-SW trends can also be recognized but in a less significant order. These trends are compatible and corresponding to the field verification.

Keywords

ASTER-GDEM Supervised classification SVM And SAM 

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Copyright information

© Saudi Society for Geosciences 2019

Authors and Affiliations

  • Osama El Ghrabawy
    • 1
    Email author
  • Nehal Soliman
    • 2
  • Ahmed Tarshan
    • 1
    • 3
  1. 1.Airborne Geophysics Department, Exploration Division, Nuclear Material AuthorityCairoEgypt
  2. 2.Remote Sensing and Geographic Information system, Geological Department, National Authority for Remote Sensing & Space SciencesCairoEgypt
  3. 3.Institute of Earth Science, Geophysics DepartmentSaint Petersburg State UniversitySaint PetersburgRussia

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