Statistical Characterization of Altitude Matrices by Computer. Report 2. Calibration Tests on the Rayner-McCalden Program for 2-D Spectral Analysis.
Abstract
Progress has been made this year on two distinct aspects of the research project; the use of two-dimensional spectral analysis, and the calculation of vertical derivatives of a surface, starting in each case from an altitude matrix. The results are presented in modular form, with several reports on each aspect of the research. The first report deals with calibration of a spectral program, using artificial waveforms of known properties. Experience thus gained was used in re-running 2-D spectra for altitude matrices in the Digital Terrain Library, the subject of the second report. Thirdly, a summary of the value of 2-D spectra in general geomorphometry is offered. Two reports on vertical derivatives follow; the first presents preliminary results for the Digital Terrain Library, while the second summaries derivatives for different (photo-interpretation) terrain classes within a matrix area. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1974
- Accession Number
- ADA096649
Entities
People
- H. Lemons
- Iain Bain
- Ian S. Evans
Organizations
- Durham University