Embed Size (px)
DESCRIPTION
New Technologies for Visualizing Data in the Coastal Zone The need to consider the economic benefit to be derived from UK’s sea space has never been more important and necessary. With activities ranging from offshore renewable energy projects, minerals extraction, coastal engineering to the management and sustainability of marine and coastal ecosystems; new and efficient ways of visualizing data have been developed to enable stakeholders to better understand how the operational use of the coastal zone interacts with a myriad of other activities. As most human activity occurs within the Coastal Zone, this area is where we need good reliable spatial data. Most decision-making is done with data sets that have been set up for a specific task on land or sea. Different co-ordinate systems, different datum’s and variable resolutions are issues the practitioner needs to be aware of and manage. However, errors in terms of data integrity have, in the past, been routinely pushed to the edges of the area of interest; a situation we don’t need! Existing sources of data are well specified for its focused use, but as an integrated coastal zone resource, they have until now provided a sub-optimal solution to practitioners and decision makers. By taking multiple data sets and converting them to a common coordinate system and datum/geoid, the users can thereby manage a common regular resolution across the land-sea interface and gain more coherent and accurate interoperability. By visualizing all that data in its environmental setting, the eye-brain combination can see the dangers and can then focus in on the vital information on display. This presentation will show what is possible from a visualization system, suitable for management and operational use, that can handle terrabyte’s of data from a range of sensors and present it efficiently
Citation preview
3D Visualisation of Integrated Data Sets
Nick Holden,Managing Director N.J.Holden Consultancy ltdTechnical Director GeoVizix LtdPartnered with John Pepper OceanWise.
• Developed the Environment Agency’s LIDAR and Bathymetric survey capabilities.
• i-G Peninsula project to commercialise 3D visualisation of environmental data for decision making and stake holder engagement.
• Set up own company to exploit visualisation potential.
How I got here
Why do we need to visualise data.
• We need to engage professionals and the public before they get board.
• Most data set are not used for the purpose they were collected.
• Most users are unaware of the scale/resolution and accuracy that the original data was collected.
• Most projects will be criticised for some form of operator bias. Who believes a Photo Montage.
• The most reliable QC device is the Mk1 brain when connected to the Mk1 eyeball.
What do we need for visualisations?
• Gold standard LIDAR, Bathymetry, models and aerial photography , GIS data and maps.
• The ability to seamlessly merge coastal topography with bathymetry.
• Ability to handle large data sets.
• We need to be able to project other GIS type data onto the 3D world.
• We need to Project model/planning models into the 3D world.
Aircraft Position Control - GPS
GPS Reference Receiver(ETRF89)
Observed Point ‘p’(ETRF89)
<20km
Line of Flight
Vessel Position Control - GPS
GPS Reference Receiver(ETRF89)
<20km
3D Land-Sea Terrain ModelPortbury, Bristol, UK
3D Land-Sea Terrain ModelPortland Port, Dorset, UK
Plymouth SAR, LIDAR and Bathymetry combined
Plymouth SAR, LIDAR and Bathymetry combined
Marine Themes – Feature Layers
• Elevation --Small Medium & Large Scale
• Shipwrecks & Obstructions
• Industrial Facilities
• Transport
• Administrative & Management Units
• Geographical Regions (L/M/S)
© Ordnance Survey 2012, Vector Map District
Welsh Govt Suppliers Day, 17th October 2013
User Bodies in Wales
• Offshore and Coastal Engineers/ Consultants• Environmental Resource Management• Local Authorities• Emergency Services• Regulatory Bodies• Coastal Monitoring agencies• Contractors• Scientists• Academics• Charities and NGO’s
Welsh Govt Suppliers Day, 17th October 2013
Software packages used
• Ultra Edit/ Excel• Sketch up• MS paint• ArcGIS (ESRI)• Geovisionary (Virtalis)
Now a quick interactive playusing
Geovisionary software by Virtalis.Data supplied by OceanWise,
UK Hydrographic Office,Ordnance Survey.
