Title :
Microwave emission features of crops with vertical stems
Author :
Macelloni, G. ; Palescia, S. ; Pampaloni, P. ; Ruisi, R.
Author_Institution :
Istituto di Ricerca sulle Onde Elettromagnetiche, CNR, Firenze, Italy
fDate :
1/1/1998 12:00:00 AM
Abstract :
Microwave emission from crops characterized by long vertical structures has been investigated by using experimental data at 10 and 37 GHz and a model based on radiative transfer theory. The effects of single-plant constituents on the total emission from crops are evaluated by means of measurements carried out on plants in natural conditions and after sequential cuts of fruits, leaves, and stems. The experimental results are discussed in terms of emission and scattering properties of the crop. The dependence of optical depth and single-scattering albedo on plant water content has been estimated
Keywords :
agriculture; geophysical techniques; microwave measurement; millimetre wave measurement; radiometry; remote sensing; 10 GHz; 37 GHz; EHF; SHF; agriculture; canopy structure; crops; geophysical measurement technique; harvesting; long vertical structure; microwave emission features; microwave radiometry; millimetre radiometry; mm wave; model; plant water content; radiative transfer theory; remote sensing; single-plant constituent; single-scattering albedo; vegetation mapping; vertical stem; Biomass; Crops; Electromagnetic scattering; Microwave theory and techniques; Optical scattering; Optical sensors; Polarization; Shape; Stimulated emission; Vegetation mapping;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
