Territory Stories

End of Wet Season Stream Flow Measurements, Roper River, May 2014



End of Wet Season Stream Flow Measurements, Roper River, May 2014


Kerle, Errol; Waugh, Peter; Northern Territory. Department of Land Resource Management


E-Publications; E-Books; PublicationNT; Aug-14




Roper River


Early dry season snapshot measurements were taken on the Roper River to establish water quality and quantity conditions at commencement of baseflow conditions. The snapshot measurements are used to: 1. Refine and calibrate the hydrological model used to assess resource availability and allocations. 2. Better define aquifer recharge/discharge zones along the river, and 3. Provide a dataset of comparable flow and water quality measurements at identical periods in the annual water cycle.


Made available via the Publications (Legal Deposit) Act 2004 (NT)

Table of contents

Summary -- Aim -- Introduction -- Observations -- Discussion -- Conclusion -- Recommendations -- References




End of Wet Season Stream Flow Measurement

Publisher name

Northern Territory Government

Place of publication





24 pages : illustrations, colour maps ; 30 cm.

File type



1743500637; 9781743500637


Attribution International 4.0 (CC BY 4.0)

Copyright owner

Northern Territory Government



Parent handle


Citation address


Page content

7 Water Levels Where available, surface water levels have been recorded to facilitate the creation of stage discharge relationships (ratings). See Appendix B. Stream Flows Stream flow measurements were performed using Acoustic Doppler Current Profiler (ADCP) technology or conventional fan gauging instruments, with instrument selection at each site being dependent on water quality and/or hydraulic conditions. Discharge measurements are shown in Figure 2. The flow measurement results are tabled in Appendix C. Stream flow measurements are performed within required standards and quality assurance protocols, taking into account site and hydraulic conditions present. The process is further quantified by applying a quality matrix to each individual measurement. Figure 2: Stream Flows, May 2014 All gaugings undertaken were of good or excellent quality with the exception of site G9030250 which was downgraded to satisfactory due to significant aquatic weed growth across the gauging section. The measured discharge of 4.8m3/s deviates from the current rating by 6%. The gauging conducted at G9030176 was of good quality, however the discharge of 3.2m3/s deviates from the rating by 14%. This measurement follows a series of gaugings since 2008 that sit just below the rating curve, and suggest a review and possible adjustment to the rating may be required.

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