The Auckland Urban Mapping Project - A Discussion
Bay of Plenty Branch Presentation
Auckland Branch Presentation Wednesday 12th July 2017 Tonkin and Taylor Café 105 Carlton Gore Road Auckland Refreshments 5.30pm Presentation 6.00pm
The Auckland Urban Mapping Project - A Discussion Presented by John Begg
Dr John Begg is the GNS lead for the Urban Mapping Project in Auckland. He gained his BSc in Zoology and Geology in 1974, followed by a PhD and post-doctoral fellowship in geology. He has recently completed the re-mapping of Christchurch, and will be using the experience from this in Auckland. Understanding the geology of New Zealand cities is a critical part of understanding and planning to mitigate geological hazards such as landslides and earthquake-vulnerable ground conditions, and to locate and manage geological resources such as aggregate and groundwater. GNS Science staff are commencing a significant Government-funded project to re-map the geology of the Auckland Urban area to provide high resolution data on the distribution of rock materials at the surface and in the subsurface, where appropriate. The work includes building a regional geomorphological map, largely from existing LiDAR DEM models that will help locate geological boundaries at, or close to the surface. The information generated by the project will inform multiple specialist disciplines such as groundwater availability and quality projects, potential aggregate supply, engineering and geotechnical engineering projects, slope stability studies and it will also contribute to some facets of town planning considerations. These new geological maps of urban areas are being compiled using a mix of conventional 2D surface mapping and its integration with subsurface information obtained from drill holes, geotechnical probes and interpretation of geophysical data to create 3D geological models. Urban geological maps are typically at detailed scales e.g. 1:10 000 to 1:25:000 which are more appropriate for informing building, infrastructure and urban planning. Subsurface geological variation is difficult but important to characterise for building foundations and this requires interpretation of drill hole data and geotechnical probe tests in combination with interpretation of geophysical data and surface geology. John will present on the mapping project, and discuss the proposed approach. This will be followed by an open discussion on:
what the end-users of the map want from the new maps of Auckland how the consultants and clients who hold much of the data, skills and local knowledge required for this project can be more involved
Auckland Branch Presentation Wednesday 12th July 2017 Tonkin and Taylor Café 105 Carlton Gore Road Auckland Refreshments 5.30pm Presentation 6.00pm
The Auckland Urban Mapping Project - A Discussion Presented by John Begg
Dr John Begg is the GNS lead for the Urban Mapping Project in Auckland. He gained his BSc in Zoology and Geology in 1974, followed by a PhD and post-doctoral fellowship in geology. He has recently completed the re-mapping of Christchurch, and will be using the experience from this in Auckland. Understanding the geology of New Zealand cities is a critical part of understanding and planning to mitigate geological hazards such as landslides and earthquake-vulnerable ground conditions, and to locate and manage geological resources such as aggregate and groundwater. GNS Science staff are commencing a significant Government-funded project to re-map the geology of the Auckland Urban area to provide high resolution data on the distribution of rock materials at the surface and in the subsurface, where appropriate. The work includes building a regional geomorphological map, largely from existing LiDAR DEM models that will help locate geological boundaries at, or close to the surface. The information generated by the project will inform multiple specialist disciplines such as groundwater availability and quality projects, potential aggregate supply, engineering and geotechnical engineering projects, slope stability studies and it will also contribute to some facets of town planning considerations. These new geological maps of urban areas are being compiled using a mix of conventional 2D surface mapping and its integration with subsurface information obtained from drill holes, geotechnical probes and interpretation of geophysical data to create 3D geological models. Urban geological maps are typically at detailed scales e.g. 1:10 000 to 1:25:000 which are more appropriate for informing building, infrastructure and urban planning. Subsurface geological variation is difficult but important to characterise for building foundations and this requires interpretation of drill hole data and geotechnical probe tests in combination with interpretation of geophysical data and surface geology. John will present on the mapping project, and discuss the proposed approach. This will be followed by an open discussion on:
what the end-users of the map want from the new maps of Auckland how the consultants and clients who hold much of the data, skills and local knowledge required for this project can be more involved
