Estimation of Tree Height in Burned Areas with GEDI Laser Data in Northern Portugal and Galicia (Spain)

We analyzed the tree height of four areas affected by wildfires in northern Portugal and Galicia (Spain) using the GEE platform, random forest regression model, and GEDI data. Before the fires, the heights varied from 5.21 to 20.16 m, with r<sup>2</sup> values of 0.82 and 0.67. After the...

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Bibliographic Details
Main Authors: Saulo Folharini, Sarah Moura Batista dos Santos, António Bento-Gonçalves, António Vieira
Format: Article
Language:English
Published: MDPI AG 2022-10-01
Series:Environmental Sciences Proceedings
Subjects:
Online Access:https://www.mdpi.com/2673-4931/22/1/50
Description
Summary:We analyzed the tree height of four areas affected by wildfires in northern Portugal and Galicia (Spain) using the GEE platform, random forest regression model, and GEDI data. Before the fires, the heights varied from 5.21 to 20.16 m, with r<sup>2</sup> values of 0.82 and 0.67. After the fires, heights of 5.55 to 9.12 m were recorded, with values of r<sup>2</sup> 0.47 and 1. These r<sup>2</sup> values after fires indicate the absence or limitation of sample data. We concluded that the GEDI data have great potential to assist in the mapping of areas affected by wildfires.
ISSN:2673-4931