This is a Preprint and has not been peer reviewed. The published version of this Preprint is available: https://doi.org/10.1016/j.geomorph.2012.09.012. This is version 1 of this Preprint.

Influence of cell size on volume calculation using digital terrain models: A case of coastal dune fields
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Abstract
In this work, we analyze how variation in cell size influences the volume calculated from Digital Terrain Models (DTMs) derived from a LiDAR (Light Detection and Ranging) survey in two coastal Late Holocene dune fields in southern Brazil. Cell size varied from 1 to 100 m. The RMSE (Root Mean Square Error) of the resampled DTMs from the original LiDAR (with 0.5 m resolution) increases linearly with cell size, while the R-squared decreases following a second-order trend. The volume does not show simple linear or exponential behavior, but fluctuates with positive and negative deviations from the original DTM. This fluctuation can be explained by... more
DOI
https://doi.org/10.31223/osf.io/pr7um
Subjects
Earth Sciences, Geographic Information Sciences, Geography, Geomorphology, Other Earth Sciences, Physical Sciences and Mathematics, Remote Sensing, Sedimentology, Social and Behavioral Sciences, Spatial Science
Keywords
Quaternary, LiDAR, SRTM, ASTER GDEM, Coastal dune field, SIR-C, X-SAR
Dates
Published: 2017-11-01 06:55
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