Salinity assessment with HARSD: Little River Catchment, NSW

Davies, SW; Pollock, D; Milne-Home, WA; Salama, RB

Salinity assessment with HARSD: Little River Catchment, NSW

Davies, SW Pollock, D Milne-Home, WA Salama, RB

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Publication Type:: Journal Article
Citation:: Water, 2001, 28 (7), pp. 37 - 40
Issue Date:: 2001-12-01

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Field	Value	Language
dc.contributor.author	Davies, SW	en_US
dc.contributor.author	Pollock, D	en_US
dc.contributor.author	Milne-Home, WA	en_US
dc.contributor.author	Salama, RB	en_US
dc.date.issued	2001-12-01	en_US
dc.identifier.citation	Water, 2001, 28 (7), pp. 37 - 40	en_US
dc.identifier.issn	0310-0367	en_US
dc.identifier.uri	http://hdl.handle.net/10453/5849
dc.description.abstract	The HARSD method (Hydrogeomorphic Analysis of Regional Spatial Data) was applied for salinity assessment of the 1,075 km2 Little River Catchment, Macquarie Valley, NSW. Automated terrain classification was performed using a 25 m resolution Digital Elevation Model (DEM) and potential groundwater discharge sites were identified from a regional-scale hydraulic head surface (HHS) constructed from sparsely-distributed borehole data using GIS and hydrologic techniques. These sites compared favourably with mapped salinity in the southern area, but less so elsewhere. Transmissivity, spatially distributed recharge and the HHS formed input to Flownet Analysis Software (FAS), a steady-state groundwater model associated with HARSD, to provide preliminary groundwater and, by inference, salt flux estimates for the 735 km2 Buckinbah Creek subcatchment. Phase-II work will investigate salinity in a high-risk subcatchment of Buckinbah Creek, using hydrological, hydroecological and remote sensing techniques.	en_US
dc.relation.ispartof	Water	en_US
dc.title	Salinity assessment with HARSD: Little River Catchment, NSW	en_US
dc.type	Journal Article
utslib.citation.volume	7	en_US
utslib.citation.volume	28	en_US
utslib.for	040403 Geophysical Fluid Dynamics	en_US
utslib.for	090509 Water Resources Engineering	en_US
utslib.for	040603 Hydrogeology	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
utslib.copyright.status	open_access
pubs.issue	7	en_US
pubs.publication-status	Published	en_US
pubs.volume	28	en_US

Abstract:

The HARSD method (Hydrogeomorphic Analysis of Regional Spatial Data) was applied for salinity assessment of the 1,075 km2 Little River Catchment, Macquarie Valley, NSW. Automated terrain classification was performed using a 25 m resolution Digital Elevation Model (DEM) and potential groundwater discharge sites were identified from a regional-scale hydraulic head surface (HHS) constructed from sparsely-distributed borehole data using GIS and hydrologic techniques. These sites compared favourably with mapped salinity in the southern area, but less so elsewhere. Transmissivity, spatially distributed recharge and the HHS formed input to Flownet Analysis Software (FAS), a steady-state groundwater model associated with HARSD, to provide preliminary groundwater and, by inference, salt flux estimates for the 735 km2 Buckinbah Creek subcatchment. Phase-II work will investigate salinity in a high-risk subcatchment of Buckinbah Creek, using hydrological, hydroecological and remote sensing techniques.

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http://hdl.handle.net/10453/5849