Spatial measurements to support groundwater monitoring in coastal settings, southeast Queensland
Webb, Robert M., Cox, Malcolm E., & Hammond, Andrew P. (2006) Spatial measurements to support groundwater monitoring in coastal settings, southeast Queensland. In Fehlhaber, Les (Ed.) Combined 5th Trans Tasman Survey Conference and the 2nd Queensland Spatial Industry Conference 2006, 19-23 September 2006, Cairns, Queensland, Australia.
Numerous investigations of groundwater systems have been conducted within the coastal areas of southeast Queensland by the School of Natural Resource Sciences, QUT. These studies have addressed both water resources and environmental considerations. Typically these locations are low relief coastal flood plain settings and the aquifer materials are dominantly sands and silts that are geologically young. Of significance in these areas, which are often peri-urban, is the rapid land use change and the potential impacts on estuarine and marine ecosystems. More recently the focus of these studies has been to better understand the hydrological processes within low-lying areas, in particular the response of groundwater levels to tides, barometric pressure and irregular rainfall.
Measurement of groundwater levels in bores (hydrographs) are given relative to sea level as a datum. However, due to the nature of the aquifer materials and the subtle changes in surface morphology due to sea level variations there is a need for precision DGPS surveying. This level of precision enables small variations in the watertable to be identified and is important in groundwater modelling. In addition to the spot measurements on bores, precision surveying enables identification of features such as old shorelines and dune systems, which enables recreation of former coastal zone environments.
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|Item Type:||Conference Paper|
|Keywords:||Ground Water boreholes, GPS Surveying|
|Subjects:||Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > GEOMATIC ENGINEERING (090900) > Surveying (incl. Hydrographic Surveying) (090906)|
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > GEOMATIC ENGINEERING (090900) > Geodesy (090902)
Australian and New Zealand Standard Research Classification > EARTH SCIENCES (040000) > PHYSICAL GEOGRAPHY AND ENVIRONMENTAL GEOSCIENCE (040600) > Hydrogeology (040603)
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering|
|Copyright Owner:||Copyright 2006 (The authors)|
|Deposited On:||05 Oct 2006|
|Last Modified:||29 Feb 2012 23:18|
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