Radiative transfer theory for polarimetric remote sensing of pine forest at P band
- 20 September 1994
- journal article
- research article
- Published by Informa UK Limited in International Journal of Remote Sensing
- Vol. 15 (14), 2943-2954
- https://doi.org/10.1080/01431169408954294
Abstract
In this paper, the radiative transfer “RT” theory for clustered vegetation structures is developed and used to interpret polarimetric radar backseattering measurement data from pine forest. The RT theory has been widely used to calculate radar backscattering coefficients from layered geophysical media and to interpret the measurement data. However,the conventional RT theory ignores the relative phase information associated with structured scatterers. which may play an important role in the overall scattering behaviour. To take into account the clustered structures with the RT theory, the scattering function of each cluster is calculated by incorporating the phase interference of scattered fields from each component. Subsequently, the resulting phase matrix is used in the radiative transfer equations to calculate the polarimetric backscattering coefficients from layered random media embedded with vegetation clusters.A multi-scale structure model of pine forest, which includes trunks, primary and secondary branches, is used to interpret and simulate polarimetric radar response at P band “0·44Hz”. The theoretical calculations are shown to be in good agreement with the backscattering data measured at the Landes maritime pine forest during the MAESTRO 1 Campaign.Keywords
This publication has 8 references indexed in Scilit:
- Retrieval of forest biomass from SAR dataInternational Journal of Remote Sensing, 1994
- Branching model for vegetationIEEE Transactions on Geoscience and Remote Sensing, 1992
- Modeling and observation of the radar polarization signature of forested areasIEEE Transactions on Geoscience and Remote Sensing, 1989
- Electromagnetic wave scattering from some vegetation samplesIEEE Transactions on Geoscience and Remote Sensing, 1988
- Microwave Dielectric Spectrum of Vegetation - Part II: Dual-Dispersion ModelIEEE Transactions on Geoscience and Remote Sensing, 1987
- Microwave Inversion of Leaf Area and Inclination Angle Distributions from Backscattered DataIEEE Transactions on Geoscience and Remote Sensing, 1985
- Radiative transfer theory for active remote sensing of a layer of nonspherical particlesRadio Science, 1984
- Light Scattering by Small ParticlesPhysics Today, 1957