New CRC Technical Report - River Restoration Program
November 15, 2005
CRC Technical Report 05/16 'Regional Models of Stream Channel Metrics' by Mike Stewardson, Ron DeRose and Ciaran Harman is now available for downloading below.
Preface
There is increasing concern for the remote impacts of land and water resources management decisions. The CRC for Catchment Hydrology has devoted considerable attention to developing models for assessing these impacts. This report provides models of channel geometry for use in these catchment-scale models. Channel geometry is a primary factor controlling the flux of water and sediment through catchments as well as hydrologic interactions between the channel and floodplain surface and subsurface flow pathways. This report describes the development of empirical equations to estimate hydraulic geometry metrics throughout river networks based on a large set of river surveys in Victoria, Australia. Channel metrics include bankfull width, depth, shape, slope and discharge and at-a-station hydraulic geometry parameters. All models are provided with some indication of their error so users can assess the uncertainty in their model predictions. In some cases, channel metric models do not perform so well, although measurement and sample errors can also be very large if practitioners choose to survey rather than model channel hydraulics. An estimate of sample and measurement errors for some metrics is provided in report. Data sets used in this study are available via the internet at www.toolkit.net.au.
Mike Stewardson
Program Leader - River Restoration
CRC for Catchment Hydrology
This report is available for downloading below.
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