Authors / CoAuthors
Apps, H. | Halas, L. | Tan, K.P. | Clarke, J.D.A.
Abstract
The Ord Valley Airborne Electromagnetic (AEM) Interpretation Project (OVAEIP) was a collaborative project between the Ord Irrigation Cooperative (OIC), the Cooperative Research Centre for Landscape, Environments and Mineral Exploration (CRC LEME), Geoscience Australia (GA) and CSIRO, co-funded by both the Australian and Western Australian Governments. The aim was to provide comprehensive spatial information to address specific questions on salinity and groundwater management in the existing Ord Irrigation Area (ORIA) and those earmarked for irrigation expansion. The project included the acquisition of 5936 line km of AEM data using the SKYTEM time domain system, and a Light Ranging and Detection (LiDAR) DEM. This data was used in conjunction with geomorphic mapping, ground and downhole geophysics, drilling information and pre-existing hydrogeological data to produce a suite of derived spatial products including maps of salinity hazard, salt stores, groundwater salinity and lithology. The spatial analysis and interpretation of constrained AEM data and geological mapping have delineated the lithostratigraphy in 3D, including sand and gravel filled palaeochannels, clay and silt distribution, as well as salt stores and groundwater quality. Surface salinity hazard maps were derived using the spatial analysis of LANDSAT-5 TM, AEM, hydrogeological and geomorphic data. The study demonstrated the effectiveness of GIS and geospatial analysis within an integrated approach with products providing a framework for future irrigation development. Outputs include a comprehensive GIS for spatial interrogation and hard-copy atlases for use by stakeholders and local landholders.
Product Type
nonGeographicDataset
eCat Id
72840
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Custodian
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Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
Keywords
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- External PublicationConference Paper
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- GIS
- ( Theme )
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- AEM
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- hydrogeology
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- AU-WA
- Australian and New Zealand Standard Research Classification (ANZSRC)
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- Earth Sciences
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- Published_Internal
Publication Date
2011-09-14T00:00:00
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geoscientificInformation
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