Territory Stories

Development of a Groundwater Model for the Western Davenport Plains

Details:

Title

Development of a Groundwater Model for the Western Davenport Plains

Creator

Knapton, Anthony; CloudGMS Pty Ltd

Commissioned by

Northern Territory. Department of Environment, Parks and Water Security

Collection

E-Publications; E-Books; PublicationNT; WRD Technical Report 27/2017

Date

2018-03

Location

Western Davenport Water Control District

Abstract

CloudGMS has been commissioned by DENR to develop a numerical groundwater model of the aquifers within the central area of the WDWCD to improve confidence in the sustainability of the groundwater resources, as this is the area within the WCD with greatest potential for intensive development.

Notes

Made available by via Publications (Legal Deposit) Act 2004 (NT); Prepared for Dept Environment and Natural resources

Table of contents

Executive summary -- 1 Background -- 2 Physical -- 3 Available data -- 4 Conceptual model -- 5 Model design & construction -- 6 Parameter estimation -- 7 Water balances -- 8 Sensitivity analysis -- 9 Predictive scenarios -- 10 Conclusions -- 11 Reference -- 12 Document history and version control -- Appendix A - Groundwater level hydrographs - Appendix B - Alek range horticultural farm sub-regional modelling

Language

English

Subject

Groundwater; Northern Territory; Western Davenport Water Control District; Conceptual mode

Publisher name

Northern Territory Governmnet

Place of publication

Palmerston

Edition

version 2.0

Series

WRD Technical Report 27/2017

Format

ix, 127 pages : colour illustration and maps ; 30 cm

File type

application/pdf

ISBN

9781743502976

Use

Attribution International 4.0 (CC BY 4.0)

Copyright owner

Northern Territory Government

License

https://creativecommons.org/licenses/by/4.0/

Related links

https://hdl.handle.net/10070/842058 [LANT E-Publications: Development of a Groundwater Model for the Western Davenport Plains, version 1.1]

Parent handle

https://hdl.handle.net/10070/858845

Citation address

https://hdl.handle.net/10070/858846

Page content

Western Davenport WCD Groundwater Model (v2.0) Contents CloudGMS ix Table 28 SW zone SZ water budget components for the period 01/01/1970 01/01/2016. ............ 95 Table 29 Central zone sub-catchment SZ water balance components for the period 01/01/1970 01/01/2016. .............................................................................................................................. 95 Table 30 NE zone SZ water budget components for the period 01/01/1970 01/01/2016. ............. 96 Table 31 Total groundwater storage in aquifers within the southwestern, central and north-eastern sub-catchment zones. ............................................................................................................... 96 Table 32 Groundwater storage in the aquifers to a depth of 100 and 150 mBGL within the central sub-catchment zone (water balance zone 2). ............................................................................ 97 Table 33 Parameters included in the sensitivity analysis. .................................................................. 98 Table 34 Average annual SZ water balance components for the Central Zone for the period 1970 - 2016. ...................................................................................................................................... 104 Table 35 Parameter bounds used during PEST optimisation. ......................................................... 122 Table 36 Final optimised parameters. ............................................................................................. 124 Table 37 PNULPAR inputs. ............................................................................................................ 124 Abbreviations and acronyms DENR Department of Environment and Resource Management GIS geographical information system GL gigalitre (109 litres) kL kilolitre (103 litres) km kilometre km2 square kilometre L/s litres per second m2/d metres squared per day m^2/d metres squared per day m3 cubic metre m3/d cubic metres per day m3/s cubic metres per second ML megalitre (106 litres) ML/a megalitre per year mAHD metres above Australian Height Datum mBGL metres Below Ground Level mm millimetre mm/d millimetre per day pF log scale for representing soil matric potential RMS root mean square SRMS scaled root mean square SRTM Shuttle Radar Topographic Mission T Transmissivity (metres squared per day)