Seepage Rate Estimation From Total Channel
Control Data During Periods Of Shut Down:
Preliminary Data Quality Assessment
Case Study – Coleambally Irrigation System
Author(s)
A. M Shahidi, R. Smith & M. Gillies
Abstract
Seepage rate estimation from total channel
control data during periods of shut down:
preliminary data quality assessment case study – Coleambally irrigation system
A. M Shahidi, R. Smith & M. Gillies
National Centre for Engineering in Agriculture,
University of Southern Queensland, Australia
Abstract
In recent years, major south-eastern Australian irrigation companies have
invested heavily in modernization which includes installation of automatic
control structures with remote monitoring, the so called total channel control
technology (TCC). Main objectives of using TCC technology are to supply water
near-on-demand and to control channel water levels. TCC includes supervisory
control and data acquisition (SCADA) technology which will result in
production of integrated databases based on real time measurements of the whole
system. This data has the potential to be used to identify sections of channel with
high rates of seepage or leakage. Pondage tests are acknowledged as the best
direct method for seepage measurement, and the recorded water level data from
automated systems during periods of gate closure can be treated as pondage test
data. The purpose of this paper is to report on a preliminary quality analysis of
such data during periods of shut down in the system in order to investigate the
feasibility of using such data in seepage rate estimation. Coleambally irrigation
district in southern NSW was chosen as the case study it being one of the first
automated irrigation districts in the world and having three years of historical
data. The analysis was done for all pondage conditions during the 2010 irrigation
season and based on criteria requirements, accepted samples were categorized in
different groups. The analysis showed that out of the total number of 1073
possible pondage conditions, 51% of them met the 70% criteria requirements and
case study – Coleambally irrigation system
Keywords
Seepage estimation, total channel control, pondage test, irrigation channels, Coleambally irrigation
Related Book
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