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HUN AWRA-R Simulation Node Cross Sections v01

Abstract

The dataset was derived by the Bioregional Assessment Programme from multiple source datasets. The source datasets are identified in the Lineage field in this metadata statement. The processes undertaken to produce this derived dataset are described in the History field in this metadata statement.

River cross sections for simulation nodes in the Hunter subregion obtained using data on nearby cross-sections and streamflow estimates and a simple trapezoidal cross-section. The data is in a comma separated file (CSV). The relevant information contained in the CSV is as follows: Site, cross section ID, order (measurement), chain and level. This dataset was derived by the Bioregional Assessment Programme from existing cross-section data obtained from DPI Water, or modelled streamflow data.

Purpose

The cross-sections are used in river modelling to determine river reach volumes and gains (e.g. rainfall on river) and losses (e.g. leakage to groundwater, evapotranspiration from river).

Dataset History

In Australia, cross-section data are generally available at streamflow gauges only. River model simulations are required to assess the impacts of coal development on streamflow at several locations where cross-section data is lacking. Regional hydraulic geometry models can be obtained using proxies (catchment area, mean annual streamflow) that can be readily obtained. An approach to produce stream cross-sections in headwater catchments with no data, by assuming that cross-sections at nearby gauging stations (or at gauging stations draining a comparable catchment area, or at gauging stations with comparable mean annual streamflow) provided a reasonable estimate of bottom channel width. The information on bottom channel width was then converted into a trapezoidal cross-section with a height able to accommodate AWRA-L 90 percentile streamflow. There were locations between or close to existing gauges, the cross-section of the closer gauge or gauge with similar catchment area was chosen in these instances.

Dataset Citation

Bioregional Assessment Programme (2016) HUN AWRA-R Simulation Node Cross Sections v01. Bioregional Assessment Derived Dataset. Viewed 13 March 2019, http://data.bioregionalassessments.gov.au/dataset/1fd9e5fe-eec1-4a34-8b4c-6d95a54998df.

Dataset Ancestors

Data and Resources

Additional Info

Field Value
Title HUN AWRA-R Simulation Node Cross Sections v01
Type Dataset
Language eng
Licence Creative Commons Attribution 4.0 International, http://creativecommons.org/licenses/by/4.0/, (c) Commonwealth of Australia (Bioregional Assessment Programme http://www.bioregionalassessments.gov.au), (c) State of New South Wales (Office of Water)
Data Status completed
Update Frequency notPlanned
Landing Page https://data.gov.au/data/dataset/2171a898-ddaa-465e-bfde-51701b2f209e
Date Published 2018-06-01
Date Updated 2019-11-20
Contact Point
Bioregional Assessment Program
bioregionalassessments@environment.gov.au
Temporal Coverage N/A - N/A
Geospatial Coverage POLYGON ((0 0, 0 0, 0 0, 0 0))
Jurisdiction New South Wales
Data Portal data.gov.au
Publisher/Agency Bioregional Assessment Program