Information from geophysics for land management planning, Broomehill, Western Australia

Gregory J. Street; Abbott Simon; Ladyman Marty; Anderson-Mayes Ann-Marie

doi:10.1071/ASEG2006ab169

ISSN: 2202-0586
E-ISSN:

oa Information from geophysics for land management planning, Broomehill, Western Australia
Authors Gregory J. Street^a, Abbott Simon^b, Ladyman Marty^c and Anderson-Mayes Ann-Marie^d
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^a Dept of App. Geophysics CurtinUniversity of Technology GeoAg Pty Ltd, PO Box 102 Cottesloe WA, 6011, [email protected] ^b Dept of App. Geophysics CurtinUniversity of Technology GeoAg Pty Ltd, Bentley WA, [email protected] ^c Claw Environmental, 33 Hatfield Way Booragoon WA, 6154, [email protected],au ^d Consultant, 5 Arbery Ave Sorrento WA, [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2006, Issue ASEG2006 - 18th Geophysical Conference, Dec 2006, p. 1 - 7
DOI: https://doi.org/10.1071/ASEG2006ab169
- Published online: 01 Dec 2006

Abstract

In 1995 the SALTMAP airborne electromagnetic (AEM) system was surveyed over an area of around 50,000 hectares west of Broomehill in the southwest of Australia. It was the first practical application of a new AEM system developed specifically for mapping salinity. The project was a cooperative study between farmers in the area, World Geoscience Corporation, Department of Agriculture, Water and Rivers Corporation and the CRC-AMET. Previous AEM surveys in the southwest were surveyed using INPUT and QUESTEM but the results had not been incorporated into land management decisions. The aim of the Broomehill study was to develop the information products to enable farm plans to be created using information from the SALTMAP data. Inherent in the approach was the collection of a large range of ancillary geospatial data using geophysics, remote sensing and other techniques and incorporation of these data into a geographic database. Various techniques were explored to ensure that as much information as possible from the geophysics flowed through to the eventual land management plans. These techniques included manual interpretation of magnetic and radiometrie data and the development of new smart data interpretation in GIS. Intermediate information sets such as ‘Salt Hazard’ and regolith maps guided the development of new farm plans to address land degradation in the area. Ten years later the Broomehill study remains as one of the few cases where farm plans were created based on a full range of geospatial data. This paper will report on the methods used and how they could be improved with new interpretation techniques to define a new set of information that could be used to guide land management decisions today.

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References

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/content/journals/10.1071/ASEG2006ab169

Article Type: Research Article

Keyword(s): AEM; Broomehill; farm planning; magnetics; radiometrics; Salinity; SALTMAP

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