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Remote sensing of geological structure in temperate agricultural terrains

Published online by Cambridge University Press:  01 May 2009

S. A. Drury
S. A. Drury
Affiliation:
Department of Earth Sciences, The Open University, Milton Keynes, MK7 6AA, UK
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Abstract

Agricultural patterns dominate most remotely sensed images of lowland north Europe and camouflage shadow patterns related to topography and hence to underlying geological structure. Images of those parts of the near-infrared spectrum close to absorption features controlled by H–O–H bond stretching in plant cells and soil moisture largely remove this hindrance to interpretation, if they are acquired at an early stage in the growing season. The most easily available and most useful images of this type are those of band 5 from the Landsat Thematic Mapper. Spatial filtering techniques applied to digital images can enhance them for structural interpretation if filter matrices and viewing scales are chosen to match the dimensions of the most common elements of the landscape and the peak of visual acuity. Filters to enhance directional attributes of an agricultural scene give appealing results but contain spurious linear features that masquerade as faults.

Type
Articles
Information
Geological Magazine , Volume 123 , Issue 2 , March 1986 , pp. 113 - 121
Copyright
Copyright © Cambridge University Press 1986

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