LiDARThAn: A One Click QGIS Plugin for LiDAR Thinning

Falasy Anamelechi, Richard Cooke

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents the first in a series of "one-click QGIS plugins," being developed at the University of Illinois, that aggregate and automate several drainage processing and analyzing tasks on LiDAR data. This plugin, 'DEM Drainage Analyses (a.k.a LiDARThAn)' performs such tasks as boundary extraction, DEM resampling, pixels point conversion, and the extraction of pointelevation data from LiDAR DEM data in just one click. LiDARThAn was developed to make DEM drainage analyses on LiDAR data available to broader audiences. The developed plugin takes advantage of several internal QGIS integrated algorithms. The plugin was developed in the Python 3.7 language for fast execution. The LiDARThAn plugin is compatible with QGIS version 3.0 and later versions and is available for free download from the official QGIS Plugin Repository. Although developed to provide data to facilitate drainage applications such as monitoring channel flows, mapping stream networks, or creating contour lines, LiDARThAn is also useful for broader utilization including hydrological and ecosystem management. It offers a link between science and practical application of LiDAR data for most environmental analyses. The case study used for testing the plugin shows that the developed QGIS plugin, implements the LiDAR Thinning and DEM analyses process with success. LiDARThAn is envisioned as a part of a larger suite of "oneclick QGIS plugins" for drainage design and layout.

Original languageEnglish (US)
Title of host publicationAmerican Society of Agricultural and Biological Engineers Annual International Meeting, ASABE 2021
PublisherAmerican Society of Agricultural and Biological Engineers
Pages202-209
Number of pages8
ISBN (Electronic)9781713833536
DOIs
StatePublished - 2021
Event2021 American Society of Agricultural and Biological Engineers Annual International Meeting, ASABE 2021 - Virtual, Online
Duration: Jul 12 2021Jul 16 2021

Publication series

NameAmerican Society of Agricultural and Biological Engineers Annual International Meeting, ASABE 2021
Volume1

Conference

Conference2021 American Society of Agricultural and Biological Engineers Annual International Meeting, ASABE 2021
CityVirtual, Online
Period7/12/217/16/21

Keywords

  • Dem
  • Drainage analyses
  • Plugins
  • Qgis software

ASJC Scopus subject areas

  • Bioengineering
  • Agronomy and Crop Science

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