Reflection of radar waves by soils, crops and forest: a review of some recent Dutch work.

Authors

  • A.R.P. Janse

DOI:

https://doi.org/10.18174/njas.v23i4.17171

Abstract

Reviews the principles of measurement of radar reflection and some studies on three landscape types in the Netherlands. Measurements on forest (several stand types) were made from a television tower near Eindhoven in winter 1972/73 and compared with ground-survey data. Radar reflection increased gradually with increasing stem numbers/ha, being influenced largely by the canopy (owing to its high water content) and very little by tree height or stem diameter. At greater distances, the taller trees acted as a screen preventing further measurement. The technique is regarded as promising. ADDITIONAL ABSTRACT: The use of radar reflection as a classifier for agricultural purposes is discussed and demonstrated. The results of some series of measurements being performed by a Dutch working group in collaboration with the Agricultural University is mentioned, together with the problems of data handling. (Abstract retrieved from CAB Abstracts by CABI’s permission)

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Published

1975-11-01

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Section

Papers