Information system for hydrologic investigation of the Southern River catchment

[摘要] EXECUTIVE SUMMARY: The Southern River catchment is a peri urban area near Perth (Western Australia) that iscurrently undergoing a high rate of urbanisation. Urban planning and development ischallenged by a complex environmental setting that includes: numerous environmentallysensitive wetlands, close proximity to a public drinking water supply mound, close proximityto the Swan-Canning Estuary, high nutrient export rates, shallow groundwater levels, andseasonal inundation. The Southern River Integrated Catchment Management (SRICM)project, funded by the Western Australian Premier’s Water Foundation (PWF) and theCSIRO Flagship Water for a Healthy Country, was designed to identify opportunities forwater-sensitive urban design, and to assess the regional hydrologic impact of watermanagement options in the Southern River catchment.An intensive monitoring program, hydrological modelling and a requirement for spatial andtemporal data analysis defined the development of an information system as a centralobjective of the SRICM project. The projects information included spatial and time seriesdata, generally characterised by inconsistent data formats with variable temporal and spatialresolutions.The developed information system was designed to:· deal with a large number of observation records from diverse sources: the resultingtime series database contained over 4 million records· provide a resource for spatial and temporal data analysis, which were essential incharacterising the catchments’ hydrological processes· store both acquired and synthetic (modelled) data· create a platform for the projects Decision Support System· allow easy access to data for exploration, analysis and modellingA number of spatial analysis techniques were developed to utilise the projects informationsystem, such as:· lithological analysis, to build 3D lithological features from lithological bore logs· catchment contributing area analysis, to assess the spatial distribution of contributionto surface water flows· nutrient enrichment analysis, to identify areas of water quality change in surfacewater channels· time slice analysis, to build spatial data sets from queries on the time series databaseThe information system was also designed to address specific client needs, and overall is animportant tool for capturing, developing and transferring the knowledge associated with theSRICM project.

[发布机构] CSIRO

[学科分类] 地球科学(综合)