eCite Digital Repository
Variation and uncertainty in bathymetric slope calculations using geographic information systems
Citation
Dolan, MFJ and Lucieer, VL, Variation and uncertainty in bathymetric slope calculations using geographic information systems, Marine Geodesy, 37, (2) pp. 187-219. ISSN 0149-0419 (2014) [Refereed Article]
Copyright Statement
Copyright 2014 Taylor and Francis
DOI: doi:10.1080/01490419.2014.902888
Abstract
Bathymetry data from multibeam echosounders and other acoustic sources are now
widely available in the form of digital terrain models, which are conveniently displayed
as raster grids in desktop geographic information systems. Calculation of terrain variables
such as slope is a simple push-button operation in most geographic information
systems; however, as we demonstrate here, there can be a great variation in the slope
values obtained due to computation algorithms and resolution or analysis scale. This
article also demonstrates how Monte Carlo simulation can be used to visualise uncertainty
in the underlying bathymetry dataset and also how this uncertainty impacts on
slope calculations.
Item Details
Item Type: | Refereed Article |
---|---|
Keywords: | slope, bathymetry, GIS, multibeam, terrain model, MAREANO |
Research Division: | Biological Sciences |
Research Group: | Ecology |
Research Field: | Marine and estuarine ecology (incl. marine ichthyology) |
Objective Division: | Environmental Management |
Objective Group: | Terrestrial systems and management |
Objective Field: | Assessment and management of terrestrial ecosystems |
UTAS Author: | Lucieer, VL (Dr Vanessa Lucieer) |
ID Code: | 91934 |
Year Published: | 2014 |
Web of Science® Times Cited: | 21 |
Deposited By: | Sustainable Marine Research Collaboration |
Deposited On: | 2014-06-03 |
Last Modified: | 2017-10-24 |
Downloads: | 0 |
Repository Staff Only: item control page