Grigorijs Goldbergs

Grigorijs Goldbergs

PhD student
About
Grigorijs Goldbergs

Dr Grigorijs Goldbergs’ project developed a new approach for measuring biomass/carbon stocks in savanna vegetation, which offers insight into the factors causing the poor dense image matching by high-resolution stereo satellites. Utilising a two-phase Light Detection and Ranging (LiDAR) analysis procedure integrating both individual tree detection and area-based approaches, Grigorijs has been able to better understand how the uncertainty of biomass estimation varies with scale. Although airborne LiDAR provided higher tree detection rates and accurate estimates of tree above ground biomass, Grigorijs found that a 3D point cloud obtained from light weight optical unmanned aerial systems imagery is an adequate low-cost alternative for the detection of dominant and co-dominant tree stands, at least at a local scale in Australian tropical savanna. The methodologies developed can be applied to large areas of savanna country across northern Australia. Grigorijs is now working as a remote sensing expert at Latvia’s Geospatial Agency.

Student project

This project is developing a robust approach for measuring biomass/carbon stocks in savanna vegetation. LiDAR data and high resolution stereo satellite imagery is being used to develop methodologies to estimate vegetation biomass in different fire regimes, extracting 3D tree biophysical structural parameters. This can then be used to accurately estimate biomass/carbon stocks. The methodologies developed will be applied to large areas of savanna country across northern Australia.
Supervisory panel:
Remote sensing of tree structure and biomass in North Australian mesic savanna
19 Sep 2018
This PHD research aims to develop and assess methods using stereo imagery and laser scanning data,...
Remote sensing of tree structure and biomass in north Australian mesic savanna
29 Jun 2017
The main goal of this study is to determine the optimal procedure for the estimation of above-...
Grigorijs Goldbergs Conference Poster 2016
14 Aug 2016
This PhD research aims to develop and assess methods, using stereo satellite imagery and laser...
Remote sensing of tree structure and biomass in north Australia mesic savanna
18 Aug 2015
This PhD research aims to develop and assess methods, using stereo satelitte imagery and laser...

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