1 / 16

Development of a Catchment Contaminant Cycle Model End-User Survey: Preliminary Results

Development of a Catchment Contaminant Cycle Model End-User Survey: Preliminary Results. Lachlan Newham 28 October 2003. Presentation Outline. LWA project description Survey format and delivery Preliminary results Implications for model development. LWA Project Description.

macy
Télécharger la présentation

Development of a Catchment Contaminant Cycle Model End-User Survey: Preliminary Results

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Development of a Catchment Contaminant Cycle ModelEnd-User Survey: Preliminary Results Lachlan Newham 28 October 2003

  2. Presentation Outline • LWA project description • Survey format and delivery • Preliminary results • Implications for model development

  3. LWA Project Description • Models required to assist end-users identify sources, pathways, interactions and impacts of contaminants • Project aim - development of a contaminant cycle model, readily accessible to, and understandable by, end-users for application in large catchments • Collaborative project - CSIRO Land and Water, CRC Catchment Hydrology and iCAM, Australian National University • Builds on existing modelling approaches e.g. EMSS, CatchMODS and SedNet

  4. Project Description • Case studies in Murrumbidgee and Brisbane River catchments • Involvement of end-users in the model development process is key to its success and subsequent adoption • End-user consultation activities • Build on previous experience in development of associated water quality models • Catchment manager workshops in case study catchments • End-user survey

  5. End-User Survey • Attempt to gain end-user input from large audience • On-line survey • Ease of collection and data analysis • Questions such as: • How models are used by decision makers • Which pollutants should be modelled • Which types of management interventions should be included • Which ecological and habitat values indicators are of interest • How results are communicated

  6. Preliminary Results: Background • 175 fully completed responses • 200 substantially complete responses • 67% primarily use models in their work • 49% for water quality improvement

  7. Preliminary Results: Contaminants • Low relative importance for bedload sediment (16%) and thermal pollution (13%) • Heavy metals suggested by many respondents as important

  8. Preliminary Results: Management Interventions • Evaporation basins (6%) and groundwater pumping (15%) considered or little importance for inclusion in contaminant cycle models

  9. Preliminary Results: Ecological Indicators • Water birds (13%)

  10. Preliminary Results: Technical Detail • Preference for models running at daily or greater time intervals • Preference for representative climate driving sequences, little interest in stochastic sequences

  11. Preliminary Results: Communicating Results • Preference for results to be expressed in lumped measures e.g. annual total loads • Preference for results to be available for subcatchment and stream reach units

  12. Implications • Important additional information has been captured in the survey… • Important to include as much knowledge gained from survey results into contaminant cycle model • Fundamental structure of proposed model is supported by results of survey

  13. Future Contaminant Cycle Model • Features of resulting contaminant cycle model • Simulation of suspended sediment, nutrients and salt • Node-link structure • Operate at daily time intervals to incorporate qualitative ecological response • Scenario based incorporating land use change, flow regulation, point source loading and riparian zone management options • http://www.adsurveys.com.au/csiro/index.cfm?SID=43

More Related