A statistical analysis of flood hydrology and bankfull discharge for the Daly River catchment, Northern Territory, Australia.

Paul Rustomji, 2009
CSIRO: Water for a healthy country flagship report series, 09/2009
This report presents a flood frequency analysis for ten gauging stations within the Daly River catchment.

River floodplain - foodweb subsidies

Stuart Bunn
This project will describe how seasonal flooding of rivers over their floodplains contributes to changes in the foodweb as feeding grounds for aquatic fauna expand and contract and determine how some current land management practices are affecting the floodplain food webs of northern rivers. The primary focus for the project will be the Mitchell River floodplain in Queensland. Some components of the project will also take place in the Daly River floodplain in the Northern Territory.
http://www.track.gov.au/research-projects/503

Significance of river bank erosion as a sediment source in the alternating flood regimes of south-eastern Australia

W. D. Erskine and R. F. WarnerWiley

Katherine flooding, 2003/2004 wet season

L. Rajaratnam, S. J. Tickell and R. Farrow
Department of Infrastructure Planning and Environment, Natural Systems Division, April 2004

The Katherine region and in particular the Tindal Creek catchment experienced well above average rainfall events during December 2003, February and March of 2004. The direct cause of the flooding was the several high daily rainfall events starting with the highest even on the 23rd December. The situation was worsened by the fact that the underlying limestone aquifer filled to overflowing in many areas. This has never been recorded before. In an average rainfall year a substantial proportion of rainfall drains directly underground via sinkholes, caves and factures in the rock. Above average rainfalls since the 19996/1997 wet season have raised regional watertables to their present high levels. Runoff has increased substantially this season because the high watertable has blocked downward drainage to the aquifer. Clearing, urbanisation and drain construction in the catchment have also added to increased runoff. The conveyance of the drainage system in Tindal Creek could not cope with this increased runoff and flooding occurred on both sides of Bicentennial Drive.

Lower Daly river basin investigation of flood protection and flood forecasting - projects 42 & 77

H. A. Power, D. G. Pidsley and R. J. Reinhard
Investigations Branch Darwin [Dept of Transport and Works]
http://www.ntlis.nt.gov.au/hpa-services/techreport?report_id=WRD80017

Daly River Community Flood Study

J. Paiva
Department of Lands, Planning and Environment
In this report a flood frequency analysis of peak discharges at the Daly River community has been carried out, and the frequency of major flood related effects on the Daly River community have been determined using hydrological records available to date. Also, the flood forecasting and warning system for the Daly River Community and its current upgrade and capability have been described.

Report on Survey Daly River Irrigation Investigation

D. Kneebone
Mines and Water Resources, The basic area concerned within this report covers Kilfoyle and Litchfield Plains which are located on the North side of Daly River between 12 and 50 miles from the mouth and up to 7 miles North inland. The report contains surveys to obtain topographic details to enable the feasibility of irrigation, drainage and flood control to be evaluated. Also included is a flood history.

Flood forecasting performance Katherine-Daly Rivers, January 1998

J. Childs and J. Paiva
Department of Lands, Planning and Environment, Natural Resources Division,
This report describes the flood forecasting activities of the Natural Resources Division (NRD) of DLPE in the Katherine/Daly River system. The performance and limitations of both the NRM river flood height forecasting procedure and the flood forecasting system during the January 1998 Katherine/Daly flood, since 23 January, have been examined. Immediate and long term improvements to the NRD forecasting system have been recommended.

Flooding in Katherine and Daly Rivers in the Northern Territory January - February 1998

Bureau of Meteorology,
This report has been prepared following the major flood in Katherine, 1998. The aim of this report was to document the meteorological and hydrological aspects of the significant weather and the flooding in the Katherine-Daly region during the period January and February 1998. It also outlines and reviews the prediction and warning services given by the Bureau of Meteorology in the lead-up to and during the event, and reviews the performance of the flood warning data networks and systems operated by the Bureau of Meteorology and the Water Resources Division of the Northern Territory Department of Lands, Planning and Environment.

This report could be used to determine where flooding has the potential to occur again, which could be important when planning future development areas.

Water Budgets: catchment water budgets and water resource assessment

R. Doble, P. Cook and J. McCallum
This project will use modelling and field methods to investigate surface – water groundwater processes in tropical river systems. The Fitzroy River (WA) and the Daly River will be used as a case study. The aims of the project are to:
1. Develop an understanding of bank storage processes in tropical rivers, and the relative importance of regional groundwater discharge in sustaining dry season flows and permanent water holes;
2. Model representative cross sections of the Fitzroy River to understand the relationships between groundwater and surface water regimes during wet and dry season fluctuations, using field data to support the modelling; and
3. Determine to what extent river water analyses are able to represent the integrated impacts of groundwater systems draining to the river.
In the Daly River, fieldwork will include groundwater sampling using existing NRETA boreholes at Oolloo Crossing to determine:
1. How floods influence groundwater next to the river, causing it to rise and fall. This will be determined by measuring the height of groundwater in the bores.
2. How the floods influence the salinity of the groundwater. This is determined by measuring the groundwater salinity (or electrical conductivity) in the bores, and will tell us how far in to the aquifer the river water flows during floods.
http://www.track.gov.au/research.html

Flood forecasting system for the lower Daly river Northern Territory

Author/s: Baker, A.
Publisher/Date: Power and Water Authority, 1988
URL: http://www.ntlis.nt.gov.au/hpa-services/techreport?report_id=WRD88004