Applications of multi-spectral lidar: river channel bathymetry and canopy vegetation indices
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Date
2018
Authors
Okhrimenko, Maxim
University of Lethbridge. Faculty of Arts and Science
Journal Title
Journal ISSN
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Publisher
Lethbridge, Alta. : Universtiy of Lethbridge, Department of Geography
Abstract
This thesis investigates the potential of new state-of-the-art multi-spectral (ms) lidar technology and develops methodologies for applications in water, wetlands, and forest resource monitoring. The scope of the thesis is split into two parts – lidar bathymetry and lidar radiometry. The first topic addresses the need for urban river environment bathymetry and refining of ms lidar data processing routines in complex riparian environments. The second topic presents a framework of experiments to investigate ms lidar radiometry.
As a result, a new routine for bathymetric correction was developed. The consistency of spectral vegetation indices (SVIs) through a variety of altitudes was investigated. Radiometric targets were constructed and, after radiometric calibration, comparability of reflectance values derived from ms lidar data to available spectral libraries was shown. Finally, forest plot-level canopy vertical SVI profiles were developed while attempting to understand attenuation losses due to sub-footprint reflectors within the canopy by means of additional complex radiometric targets.
Description
Keywords
Optical radar , Multibeam mapping , Forest canopies -- Remote sensing , River channels -- Remote sensing , Radiation -- Measurement , Urban watersheds -- Remote sensing , Reparian areas -- Remote sensing , Vegetation surveys -- Remote sensing , Optical radiometry , bathymetric river surveys , forest canopy profiles , multi-spectral lidar , river-bed monitoring , urban river environment , vertical spectral vegetation indices , Dissertations, Academic