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Journal of Applied Remote Sensing • Open Access

Continuous monitoring of biophysical Eucalyptus sp. parameters using interferometric synthetic aperture radar data in P and X bands
Author(s): Fábio Furlan Gama; João Roberto dos Santos; José Claudio Mura

Paper Abstract

This work aims to verify the applicability of models obtained using interferometric synthetic aperture radar (SAR) data for estimation of biophysical Eucalyptus saligna parameters [diameter of breast height (DBH), total height and volume], as a method of continuous forest inventory. In order to obtain different digital elevation models, and the interferometric height (Hint) to retrieve the tree heights, SAR surveying was carried out by an airborne interferometric SAR in two frequencies X and P bands. The study area, located in the Brazilian southeast region (S 22°53′22″/W 45°26′16″ and S 22°53′22″/W 45°26′16″), comprises 128.64 hectares of Eucalyptus saligna stands. The methodological procedures encompassed: forest inventory, topographic surveying, radar mapping, radar processing, and multivariable regression techniques to build Eucalyptus volume, DBH, and height models. The statistical regression pointed out Hint and interferometric coherence as the most important variables for the total height and DBH estimation; for the volume model, however, only the Hint variable was selected. The performance of the biophysical models from the second campaign, two years later (2006), were consistent and its results are very promising for updating annual inventories needed for managing Eucalyptus plantations.

Paper Details

Date Published: 7 April 2016
PDF: 15 pages
J. Appl. Rem. Sens. 10(2) 026002 doi: 10.1117/1.JRS.10.026002
Published in: Journal of Applied Remote Sensing Volume 10, Issue 2
Show Author Affiliations
Fábio Furlan Gama, Instituto de Pesquisas Energéticas e Nucleares (Brazil)
João Roberto dos Santos, Instituto de Pesquisas Energéticas e Nucleares (Brazil)
José Claudio Mura, Instituto Nacional de Pesquisas Espaciais (Brazil)

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