J. A. Motha and M. Dilshad
Department of Lands, Planning and Environment, June 1997
This report explains the procedure for obtaining the SWC (soil water characteristic) for a specific location in the Daly Basin, using a published scaling method.
Thursday, February 19, 2009
Rainfall variability and agriculture in the semi arid tropics, the Northern Territory, Australia
W. S. Mollah and I. M. Cook
Agricultural and forest meteorology, 79, 1-2, 39-60, 1996-03
Analyses of historical rainfall records for four sites for up to 103 seasons, 1888-1889 to 1990-1991 at Darwin and Katherine NT, address the three themes of climatic change, time scales and assessments of impacts on agriculture in marginal areas of the semi arid tropics. The mean for the period from 1951-1952 at Darwin represents a 10% increase over the mean for 1974-1975 and similarly at Katherine a 7% increase. Tightening the time scale to periods within seasons does not reveal similar changes, emphasising the higher variability of rainfall within seasons. Crops sown each season should recognise the timing of the occurrence of the sowing rains to minimise the risk to each landholder by seeking the best possible crop establishment. Drying conditions after each event limit the time over which soil conditions will remain suitable, so the area of crop sown will vary according to seasonal conditions.
Agricultural and forest meteorology, 79, 1-2, 39-60, 1996-03
Analyses of historical rainfall records for four sites for up to 103 seasons, 1888-1889 to 1990-1991 at Darwin and Katherine NT, address the three themes of climatic change, time scales and assessments of impacts on agriculture in marginal areas of the semi arid tropics. The mean for the period from 1951-1952 at Darwin represents a 10% increase over the mean for 1974-1975 and similarly at Katherine a 7% increase. Tightening the time scale to periods within seasons does not reveal similar changes, emphasising the higher variability of rainfall within seasons. Crops sown each season should recognise the timing of the occurrence of the sowing rains to minimise the risk to each landholder by seeking the best possible crop establishment. Drying conditions after each event limit the time over which soil conditions will remain suitable, so the area of crop sown will vary according to seasonal conditions.
Are northern Australian communities learning from past irrigation and water management experiences?
B. Kellett, K. Bristow, J. Camkin, R. Beilin and G. Moore
Australian National Committee on Irrigation and Drainage, 15-18 Oct 2006
The Northern Australian Irrigation Futures Project aims to support debate and discussion regarding the future of northern Australia, and the possible role that irrigation may play in this future. This research supports this aim by providing new interpretations of expert knowledge and community processes to explore the notion that Northern Australian communities are adapting according to stakeholders' experiences of water and irrigation management.
Australian National Committee on Irrigation and Drainage, 15-18 Oct 2006
The Northern Australian Irrigation Futures Project aims to support debate and discussion regarding the future of northern Australia, and the possible role that irrigation may play in this future. This research supports this aim by providing new interpretations of expert knowledge and community processes to explore the notion that Northern Australian communities are adapting according to stakeholders' experiences of water and irrigation management.
Preliminary report on Aboriginal perspectives on land-use and water management in the Daly River region, Northern Territory
S. Jackson
CSIRO, 2004
This report covers a wide range of topics and concerns of the Aboriginal communities in relation to the Daly River. It also supplies some background into the reasons for the report and the development of the Daly River Community Reference Group (CRG).
CSIRO, 2004
This report covers a wide range of topics and concerns of the Aboriginal communities in relation to the Daly River. It also supplies some background into the reasons for the report and the development of the Daly River Community Reference Group (CRG).
Potential Horticultural Water Supplies
U. Zaar
Power and Water Authority, Water Resources Division
This report has been written in response to the Department of Primary Industries and Fisheries request for an overview of the prospects for horticultural water supply in the area between Katherine Town and Carbeen Park Farm located approximately 40km downstream on the Katherine River. The CCNT map 'Katherine Levee - Horticultural Potential' has distinguished land units in the region by their suitability to spray and trickle irrigation. At present, water for horticultural use is largely supplied by the Katherine River and from the site bores. The extent to which the river can be further utilised as a source of water is described. Groundwater supplies are investigated as well as alternative surface water options.
Power and Water Authority, Water Resources Division
This report has been written in response to the Department of Primary Industries and Fisheries request for an overview of the prospects for horticultural water supply in the area between Katherine Town and Carbeen Park Farm located approximately 40km downstream on the Katherine River. The CCNT map 'Katherine Levee - Horticultural Potential' has distinguished land units in the region by their suitability to spray and trickle irrigation. At present, water for horticultural use is largely supplied by the Katherine River and from the site bores. The extent to which the river can be further utilised as a source of water is described. Groundwater supplies are investigated as well as alternative surface water options.
Pivotal range and thermosensitive period of the pig-nosed turtle, Carettochelys insculpta (Testudines: Carettochelydidae), from northern Australia
J. E. Young, A. Georges, J. S. Doody, P. B. West and R. L. Alderman 82, 1251-1257,
Understanding temperature-dependent sex determination in nature often depends on knowledge of species specific attributes that are integrated into the relationship between temperature and sex. We determined two such attributes for the pig-nosed turtle, Carettochelys insculpta Ramsay, 1886, in tropical Australia: the pivotal range in temperature that separates the male-producing domain from the female-producing domain, and the thermosensitive period during which the embryonic sex is influenced by temperature. The pivotal range for C. insculpta was very narrow, spanning only about 1 °C, and was centred on 32 °C, which is high but consistent with temperatures reported for other tropical species. The thermosensitive period spanned developmental stages 17–21 for temperature influence in the direction of maleness and 18–21 for temperature influence in the direction of femaleness. This period is slightly narrower than that for other reptile species but broadly consistent with the middle third of incubation.
http://aerg.canberra.edu.au/cgi-bin/pubs_archive.cgi?target=G
Understanding temperature-dependent sex determination in nature often depends on knowledge of species specific attributes that are integrated into the relationship between temperature and sex. We determined two such attributes for the pig-nosed turtle, Carettochelys insculpta Ramsay, 1886, in tropical Australia: the pivotal range in temperature that separates the male-producing domain from the female-producing domain, and the thermosensitive period during which the embryonic sex is influenced by temperature. The pivotal range for C. insculpta was very narrow, spanning only about 1 °C, and was centred on 32 °C, which is high but consistent with temperatures reported for other tropical species. The thermosensitive period spanned developmental stages 17–21 for temperature influence in the direction of maleness and 18–21 for temperature influence in the direction of femaleness. This period is slightly narrower than that for other reptile species but broadly consistent with the middle third of incubation.
http://aerg.canberra.edu.au/cgi-bin/pubs_archive.cgi?target=G
Report on the land units of the Dorisvale Area - Dorisvale Station and vacant crown land east of Dorisvale Station to the Daly River
B. G. Wood
Land Conservation Unit, Territory Parks and Wildlife Commission,
http://www.ntlis.nt.gov.au/hpa-services/techreport?report_id=LRD78011
Land Conservation Unit, Territory Parks and Wildlife Commission,
http://www.ntlis.nt.gov.au/hpa-services/techreport?report_id=LRD78011
An Indigenous Management Framework for the Daly River Catchment
M. Wohling
Daly River Aboriginal Reference Group and Northern Land Council
This report is an important document, which outlines the cultural values and the future development that the traditional owners would like to occur in their area. It is not just a report but a management framework for the Daly Region.
Daly River Aboriginal Reference Group and Northern Land Council
This report is an important document, which outlines the cultural values and the future development that the traditional owners would like to occur in their area. It is not just a report but a management framework for the Daly Region.
Water Quality in the Daly River - A multi-disciplinary management approach
D. Wilson, P. Cook, L. Hutley, S. J. Tickell and P. Jolly
Department of Natural Resources the Environment and the Arts
The aim of this project was to predict the effects of land clearing on groundwater recharge to the Oolloo aquifer and therefore to spring flows in the Daly River. The current work attempted to understand the physical processes related to recharge. This will provide further scientific basis for the development of land and water management practices and assist in preventing adverse impacts on the ecosystems sustained by spring flows into the Daly River.
This is a summary report, listing the main findings, limitations, and results of the National Action Plan for Salinity and Water Quality.
Department of Natural Resources the Environment and the Arts
The aim of this project was to predict the effects of land clearing on groundwater recharge to the Oolloo aquifer and therefore to spring flows in the Daly River. The current work attempted to understand the physical processes related to recharge. This will provide further scientific basis for the development of land and water management practices and assist in preventing adverse impacts on the ecosystems sustained by spring flows into the Daly River.
This is a summary report, listing the main findings, limitations, and results of the National Action Plan for Salinity and Water Quality.
Effects of Land Use on Evapotranspiration and Recharge in the Daly River Catchment
D. Wilson, P. Cook, L. Hutley, S. J. Tickell and P. Jolly
Department of Natural Resources the Environment and the Arts
This project measures components of the water balance under native savannah vegetation and cleared land within the Daly catchment. In particular, the project provides preliminary estimates of evapotranspiration and groundwater recharge beneath these different land uses. A comparison of drainage rates under native and cleared conditions was made using two techniques: (i) a surface water balance, (ii) subsurface water chemistry.
The results of this study must be treated as preliminary, only. This report indicates potentially significant consequences of land clearing. Further work is required to develop and test hypotheses using several years’ of data. Additionally, further work should incorporate a dynamic model of surface and subsurface hydrology to better understand the workings of the system.
A Late Dry Season Survey of the Katherine and Daly Rivers
E. White
Department of Lands Planning and Environment, Natural Resources Division
The aim of the survey was to determine the location and amount of groundwater inflows to the Katherine and Daly Rivers from the Oolloo Limestone aquifer. Recommendations have been suggested for further investigation regarding the determination of where and how much the Oolloo Limestone water is discharged into the Katherine and Daly Rivers.
Department of Lands Planning and Environment, Natural Resources Division
The aim of the survey was to determine the location and amount of groundwater inflows to the Katherine and Daly Rivers from the Oolloo Limestone aquifer. Recommendations have been suggested for further investigation regarding the determination of where and how much the Oolloo Limestone water is discharged into the Katherine and Daly Rivers.
Resource Partitioning among the freshwater turtles of the Daly River, Northern Territory.
M. Welsh
University of Canberra, 9/8/99
The primary aim of this study was to examine food and microhabitat partitioning among the freshwater turtles of the Daly River. Natural processes and species interactions were discussed to explain patterns of local species composition and overall species richness, and in addition, findings were discussed in regards to freshwater turtle conservation.
The thesis provides possible explanations for the high species richness in turtles in the Daly River and also information on the conservation of the turtles
University of Canberra, 9/8/99
The primary aim of this study was to examine food and microhabitat partitioning among the freshwater turtles of the Daly River. Natural processes and species interactions were discussed to explain patterns of local species composition and overall species richness, and in addition, findings were discussed in regards to freshwater turtle conservation.
The thesis provides possible explanations for the high species richness in turtles in the Daly River and also information on the conservation of the turtles
Baseflow water quality surveys in rivers in the Northern Territory, Volume 2: Finniss and Daly Rivers
Water Resources Division
Department of Mines and Energy
This report contains the data collected on baseflow water quality surveys of the Finniss and Daly Rivers in the Northern Territory. The surveys were performed by Water Quality staff of the Water Resources Division, Department of Mines and Energy. The work was done in the Dry season of 1980, 1981, 1982. The data is presented in tables and in graphs showing water constituents levels against location in the river system. There is a catchment map for each river.
A number of plates are contain within the report, which indicates the condition of the sites studied, capturing the condition of the Daly River in the 1980's.
Department of Mines and Energy
This report contains the data collected on baseflow water quality surveys of the Finniss and Daly Rivers in the Northern Territory. The surveys were performed by Water Quality staff of the Water Resources Division, Department of Mines and Energy. The work was done in the Dry season of 1980, 1981, 1982. The data is presented in tables and in graphs showing water constituents levels against location in the river system. There is a catchment map for each river.
A number of plates are contain within the report, which indicates the condition of the sites studied, capturing the condition of the Daly River in the 1980's.
Baseflow water quality survey Oct 1982 : photographs showing the points sampled for water quality in the Daly river and its tributaries
Water Resources Division Water Quality section,
http://www.ntlis.nt.gov.au/hpa-services/techreport?report_id=WRD83090
http://www.ntlis.nt.gov.au/hpa-services/techreport?report_id=WRD83090
Dry season stream flows in the Daly/Katherine rivers, 2008
S. J. Tickell
NRETAS, Natural Resources Division
Dry season stream gaugings and water quality sampling were done on the Daly River and some major tributaries in July and September/October 2008. During the dry season the Katherine/Daly rivers are largely fed by groundwater discharge from aquifers in the Daly Basin. Late dry season stream flows were relatively high compared to historic measurements.
NRETAS, Natural Resources Division
Dry season stream gaugings and water quality sampling were done on the Daly River and some major tributaries in July and September/October 2008. During the dry season the Katherine/Daly rivers are largely fed by groundwater discharge from aquifers in the Daly Basin. Late dry season stream flows were relatively high compared to historic measurements.
Shallow core drilling in the Douglas/Daly area
S. J. Tickell
Department of Natural Resources Environment and the Arts, Natural Resources Division
This report documents the drilling results from a project as part of the “Water Quality in the Daly River” funded jointly by the National Action Plan for Salinity & Water Quality programme and the NT Government. The aim of the drilling was to provide strata samples beneath a representative set of soil types on cleared and uncleared areas.
Measurements of soil water chloride, moisture content and matric potential were made on the samples by CSIRO Land & Water and these will be reported on in the project’s final report. The vertical profiles of these parameters will be used to estimate groundwater recharge.
This report has a number of photographs that display the different soil types. There are also graphic logs of the strata and information on the surface geology and landforms.
Department of Natural Resources Environment and the Arts, Natural Resources Division
This report documents the drilling results from a project as part of the “Water Quality in the Daly River” funded jointly by the National Action Plan for Salinity & Water Quality programme and the NT Government. The aim of the drilling was to provide strata samples beneath a representative set of soil types on cleared and uncleared areas.
Measurements of soil water chloride, moisture content and matric potential were made on the samples by CSIRO Land & Water and these will be reported on in the project’s final report. The vertical profiles of these parameters will be used to estimate groundwater recharge.
This report has a number of photographs that display the different soil types. There are also graphic logs of the strata and information on the surface geology and landforms.
Carbon Dating of Groundwaters in the Oolloo Dolostone Aquifer
S. J. Tickell
Department of Infrastructure Planning and Environment, Natural Resources Division
As part of a study of the Oolloo Dolostone aquifer, twelve samples of groundwater were submitted for carbon dating and deuterium / oxygen-18 determinations. The dissolved inorganic carbon was precipitated as BaC03 prior to shipment to CSIRO Land and Water Radiocarbon Laboratory .The technical report prepared by CSIRO is included as Appendix 1. It includes the uncorrected 14C ages and corrected ages using three geochemical models. Ten of the samples were taken from bores and two were from springs along the Daly River. Three bores located near the junction of the King and Katherine Rivers were sampled in October 2001 but were only tested for deuterium / oxygen-18.
Department of Infrastructure Planning and Environment, Natural Resources Division
As part of a study of the Oolloo Dolostone aquifer, twelve samples of groundwater were submitted for carbon dating and deuterium / oxygen-18 determinations. The dissolved inorganic carbon was precipitated as BaC03 prior to shipment to CSIRO Land and Water Radiocarbon Laboratory .The technical report prepared by CSIRO is included as Appendix 1. It includes the uncorrected 14C ages and corrected ages using three geochemical models. Ten of the samples were taken from bores and two were from springs along the Daly River. Three bores located near the junction of the King and Katherine Rivers were sampled in October 2001 but were only tested for deuterium / oxygen-18.
A Survey of Springs along the Daly River
S. J. Tickell
Department of Infrastructure Planning and Environment, Natural Resources Division
Spring flow into the Daly River totalled some 19 cumecs in September 2001, representing the largest groundwater input to the Daly/Katherine river system. Springs and seepages occur along the whole length of the traverse but major discharges and /or concentrations of springs were identified in some five discrete zones. Numerous springs are visible in the riverbanks but the majority of the inflow is via direct seepage into the riverbed. The main source of the springs is a fractured and cavernous aquifer in the upper part of the Oolloo Dolostone, a massive dolostone unit.
This report provides information on the geology along the Daly River, thereare also riverbed profiles and detailed tables containing information on chemicals, river temperature and pH levels.
Department of Infrastructure Planning and Environment, Natural Resources Division
Spring flow into the Daly River totalled some 19 cumecs in September 2001, representing the largest groundwater input to the Daly/Katherine river system. Springs and seepages occur along the whole length of the traverse but major discharges and /or concentrations of springs were identified in some five discrete zones. Numerous springs are visible in the riverbanks but the majority of the inflow is via direct seepage into the riverbed. The main source of the springs is a fractured and cavernous aquifer in the upper part of the Oolloo Dolostone, a massive dolostone unit.
This report provides information on the geology along the Daly River, thereare also riverbed profiles and detailed tables containing information on chemicals, river temperature and pH levels.
Groundwater Resources of the Stray Creek Area
S. J. Tickell
Department of Lands Planning and Environment, Natural Resources Division
The present study was carried out in order to assess the area’s groundwater potential. It involved reconnaissance geological mapping and drilling three investigation boreholes. The work was done in May and June of 2001. The report gives detail into groundwater and the geology along Stray Creek, which flows into the Daly River.
This report could be used to locate bores and identify geology to some depth around the Stray Creek area.
Department of Lands Planning and Environment, Natural Resources Division
The present study was carried out in order to assess the area’s groundwater potential. It involved reconnaissance geological mapping and drilling three investigation boreholes. The work was done in May and June of 2001. The report gives detail into groundwater and the geology along Stray Creek, which flows into the Daly River.
This report could be used to locate bores and identify geology to some depth around the Stray Creek area.
Katherine River Development
I. Smith
Department of Transport and Works, Water Division
This report examines hydrological parameters likely to affect the development of the Katherine River at and above the town of Katherine. Broad scale environmental and economic considerations led to a recommendation for development of the next phase of water supply to the town, such development being seen as the major influence in the medium term future of the river. A comparative summary of all water supply options considered suited to the growth of the town of Katherine is presented. In addition to town water supply the irrigation and hydroelectric generating capability of the river is examined at a major damsite (Keckwick) at the N.E. boundary of Katherine Gorge National Park.
Department of Transport and Works, Water Division
This report examines hydrological parameters likely to affect the development of the Katherine River at and above the town of Katherine. Broad scale environmental and economic considerations led to a recommendation for development of the next phase of water supply to the town, such development being seen as the major influence in the medium term future of the river. A comparative summary of all water supply options considered suited to the growth of the town of Katherine is presented. In addition to town water supply the irrigation and hydroelectric generating capability of the river is examined at a major damsite (Keckwick) at the N.E. boundary of Katherine Gorge National Park.
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