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Filtering by: Creator Johnstone, Elizabeth Creator Olsen, Michael J.

TopCAT – Topographical Compartment Analysis Tool to analyze seacliff and beach change in GIS

Creator:

Olsen, Michael J., Young, Adam P., and Ashford, Scott A.

Abstract:

This paper discusses the development of a new GIS extension named the Topographic Compartment Analysis Tool (TopCAT), which compares sequential digital elevation models (DEMs) and provides a quantitative and statistical analysis of the alongshore topographical change. TopCAT was specifically designed for the morphological analysis of seacliffs and beaches but may...

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Article

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/). 419 Acknowledgements 420 The authors would like to thank Elizabeth Johnstone and Jessica Raymond
Hinged, pseudo-grid triangulation method for long, near-linear cliff analyses

Creator:

Olsen, Michael J., Kuester, Falko, and Johnstone, Elizabeth

Abstract:

LIDAR scanners can rapidly collect high resolution, cm-level accurate point clouds representing topography, suitable for change detection if scans are repeated over time. To perform meaningful volumetric change analyses, point clouds are commonly triangulated to produce continuous, digital terrain models (DTMs). However, DTM creation methods generally require a fixed look...

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Article

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, near-linear cliff analyses Michael J. Olsen1, Falko Kuester 2, and Elizabeth Johnstone3 1. PhD