Detecting landscape forms using Fourier transformation and singular value decomposition (SVD)

Authors:
Ralf Wieland;Claus Dalchow
Affiliations:
Leibniz-Centre for Agricultural Landscape Research, Eberswalder Str. 84, D-15374 Muencheberg, Germany;Leibniz-Centre for Agricultural Landscape Research, Eberswalder Str. 84, D-15374 Muencheberg, Germany
Venue:
Computers & Geosciences
Year:
2009

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Abstract

Landscape structure is a main determinant of ecological landscape potentials. The basic differentiation of relief into depressions and elevations at deliberately chosen scales can be managed comfortably by the Fourier transformation. The automated extraction of these structures from an elevation map using Fourier transformation or singular value decomposition can help to overcome complicated and errorprone procedures based on the determination of numerical structure parameters such as slope and aspect. The combination of automated extraction methods and moving window technology can lead to further, more integrated insights related to complex landscape patterns.