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Determining the Optimal Grid Resolution for Topographic Analysis on an Airborne Lidar Dataset (2019)

Copernicus

In: Earth Surface Dynamics Discussions

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Publication Date: 2019

Description: 〈b〉Determining the Optimal Grid Resolution for Topographic Analysis on an Airborne Lidar Dataset〈/b〉〈br〉 Taylor Smith, Aljoscha Rheinwalt, and Bodo Bookhagen〈br〉 Earth Surf. Dynam. Discuss., https//doi.org/10.5194/esurf-2018-96,2019〈br〉 〈b〉Manuscript under review for ESurf〈/b〉 (discussion: open, 1 comment)〈br〉 Representing the surface of the earth on an equally spaced grid leads to errors and uncertainties in derived slope and aspect. Using synthetic data, we develop a quality metric that can be used to compare the uncertainties in different datasets. We then apply this method to a real-world lidar dataset, and find that one-meter data has larger error bounds than lower resolution data. The highest data resolution is not always the best choice – it is important to consider the quality of the data.

Electronic ISSN: 2196-6338

Topics: Geosciences

Published by Copernicus

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