Gascoyne River airborne electromagnetic (AEM) survey II: inversion report

Publication Date

1-2015

Series Number

CSIRO Water for a Healthy Country Flagship Technical Report - EP1311758

Publisher

CSIRO

City

Kensington

Abstract

The Department of Agriculture and Food, Western Australia (DAFWA) has identified priority areas across the State of Western Australia where land and water investigations are required to assess the capacity for further development of agriculture and related businesses. The Gascoyne River floodplain aquifer, in the arid mid-northwest of Western Australia, is one such area. As part of a collaboration between DAFWA and CSIRO the Gascoyne River AEM Aquifer and Groundwater Characterization Project was established with the aim of determining whether airborne electromagnetic (AEM) data can be employed to better map attributes of the unconfined alluvial aquifer beneath and adjacent to the ephemeral Gascoyne River, including spatial variations in groundwater salinity. The primary purpose of the project is to better inform groundwater management along the reach of the river from the Carnarvon township to about 50 km inland by helping constrain a 3-dimensional model of the aquifer system, thereby helping secure additional groundwater resources for irrigated agriculture and providing a basis for mitigating against damage from salinity.

Number of Pages

152

Keywords

geophysics, Gascoyne River, airborne electromagnetic survey, AEM

Disciplines

Geophysics and Seismology | Natural Resources and Conservation | Soil Science | Water Resource Management

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