A spatial data structure integrating GIS and simulation in a marine environment

Gold, Christopher M.; Condal, A.

doi:10.1080/15210609509379757

Cited by 42 publications

(21 citation statements)

References 15 publications

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“…e neighbouring relations between points are also meaningful because they indicate which points are closest in any given direction. As Gold and Condal (1995) show, this property allows us to handle SBES datasets better than raster-based approach; our experiments corroborate this (see below).…”

Section: Delaunay Triangulation and Voronoi Diagramsupporting

confidence: 76%

“…into Voronoi-based operations on the surface. It should also be noticed that, as demonstrated by Gold and Condal (1995), a Voronoi surface deals elegantly with anisotropic sample distributions, which are common in datasets collected with singlebeam echosounders (SBES). We have implemented our approach1, and we report on experiments made with real-world datasets, including one where MBES and SBES data are mixed.…”

Section: Introductionmentioning

confidence: 99%

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A Voronoi-Based Approach to Generating Depth-Contours for Hydrographic Charts

2014

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is is the author's version of the work. It is posted here only for personal use, not for redistribution and not for commercial use. e definitive version is published in the journal Marine Geodesy. We introduce a new approach for the generation and the generalisation of visually smooth depth-contours for hydrographic charts. Unlike most current approaches, it strictly respects the safety constraint that dictates that the resulting chart may not indicate a depth shallower than originally measured. e main idea is to construct a smooth surface using a Voronoi-based interpolation method. is surface is represented using a triangulation, modified using a series of generalisation operators, and ultimately depth-contours are extracted directly from this surface. We report on experiments made with real-world datasets, and we compare our results with existing approaches.

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Section: Delaunay Triangulation and Voronoi Diagramsupporting

confidence: 76%

Section: Introductionmentioning

confidence: 99%

A Voronoi-Based Approach to Generating Depth-Contours for Hydrographic Charts

2014

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“…This has been achieved by Roos (1990), and by Gold (1999), and was used in the maritime GIS described here Goralski and Gold (2007). The advantages for a marine GIS were described in Gold (1999) and Gold and Condal (1995). Thus the shoreline points were incorporated within a kinetic Voronoi diagram layer, expressing the neighbourhood relations on the sea surface, and this was used for collision detection by adding the real-time ship locations.…”

Section: Kinetic Data Structure Requirements and Benefitsmentioning

confidence: 99%

Kinetic Algorithms for Harbour Management

Gold

Goralski²

2012

ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci.

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ABSTRACT:Modern harbour management for a busy port needs to resolve a variety of simultaneous problems. Harbour traffic may be busy and the waterways congested, both by the major shipping and by the attendant harbour tugs. The harbour channel may be narrow and tortuous, and rapidly changing tides may require frequent course adjustments. Navigation aids must be clearly specified and immediately identifiable, in order to permit safe passage for the vessels. This requires a GIS with attributes not easily available with traditional products. The GeoVS system is a kinetic GIS with full three-dimensional visualisation, so that ships, bathymetry and landscape may be viewed in a form that is immediately understandable to both harbour pilots and the harbour authority. The system is kinetic because the data structures used to preserve the topological relationships between ships, seafloor and coastline are able to be maintained on a real-time basis, taking account of ship movement recorded on the compulsory AIS (Automatic Information System) beacons. Maintenance of this real-time topology allows for easy detection of potential collisions, as well as real-time bathymetric estimations, necessary to prevent ship grounding in highly tidal environments. The system, based on previous research into kinetic Voronoi diagrams, as well as development of a completely new graphical engine, is now in commercial production, where its advantages over simpler twodimensional models without automatic collision and grounding detection are becoming evident. Other applications are readily envisaged, and will be addressed in the near future.

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“…Marine GIS evaluates important point of spatial data management for marine applications (Lucas et al, 1994) and it also joins timedependent metadata with in-situ data for marine features and estimation of climate change (Wright et al, 1995). In the following years, development of new theoretical data model for sea bathymetry , ocean discarding and monitoring of ecological impacts (Hall et al, 1995), finding of waste charging sites on the seafloor (Chavez Jr. and Karl, 1995), and new spatial data structure were included to marine GIS (Gold and Condal, 1995). Beusen et al (1995) developed a GIS-based model that integrated geohydrological data for the estimation of loads of nitrogen and phosphorus in the coastal seas of Europe.…”

Section: Short Literature Reviewmentioning

confidence: 99%

A Review: Applications of Geographic Information Systems (Gis) in Marine Areas

Kaymaz¹,

Yabanlı²

2017

J Aquacult Eng Fish Res

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Abstract:In this review, the focus is the research of scientists which studied different GIS applications in marine areas. Based on literature review, the scientists stressed the use of GIS to assess and predict effects on marine environment. Marine spatial data are fundamental for a sustainable environmental management of marine areas, largely surrounded by countries with borders to the sea. In modern age, known as ''information age'', data acquisition, analysis and management are essential for rapid, precise and economical resolutions. GIS applications were recommended to supply a principle from combining past and present circumstances in order to predict future for marine areas. This review provides an example to how GIS applications can be used in the monitoring, conservation, management, sustainable development and environmental protection stages of marine areas.

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A spatial data structure integrating GIS and simulation in a marine environment

Cited by 42 publications

References 15 publications

A Voronoi-Based Approach to Generating Depth-Contours for Hydrographic Charts

A Voronoi-Based Approach to Generating Depth-Contours for Hydrographic Charts

Kinetic Algorithms for Harbour Management

A Review: Applications of Geographic Information Systems (Gis) in Marine Areas

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