Territory Stories

Sediment Quality Sampling Design for Darwin Harbour

Details:

Title
Sediment Quality Sampling Design for Darwin Harbour
Creator
Brinkman, Richard; Logan, Murray; Northern Territory. Department of Environment and Natural Resources; Australian Institute of Marine Science
Collection
E-Publications; E-Books; PublicationNT; Report Number 44/2019
Date
2020-01-06
Location
Darwin Harbour
Description
In the context of increasing development and associated pressures, this project aims to inform the development of a first systematic, long-term, sediment monitoring program for Darwin Harbour which takes into consideration the physicochemical nature of Darwin Harbour sediment and the oceanographic processes which will influence the movement of contaminated sediment in the Harbour. The rationale for the program is that seabed and estuarine sediments are both an extensive habitat and the ultimate repository for many contaminants that enter waterways. In addition, monitoring of contaminants in sediment may facilitate the identification of increasing contaminant loads in the Harbour which may not be detected by water monitoring programs due to the high flushing rate within Darwin Harbour and infrequent water sample collection.
Notes
Made available by via Publications (Legal Deposit) Act 2004 (NT).
Table of contents
1. Executive summary -- 2. Introduction -- 3. Methods -- 3.1 Overview of methodology -- 3.2 Tidal Hydrodynamics -- 3.3 Wave Dynamics -- 3.4 Sediment Modelling -- 3.5 Sediment sampling design analysis -- 4. Results -- 4.1 Tidal and wave driven hydrodynamic processes -- 4.2 Sediment transport modelling -- 4.3 Sediment characteristics from previous sampling programs -- 4.4 Sediment sampling design analysis -- 4.4.1 Existing chemical sediment data, Outer Harbour sediment monitoring data, and designated sampling sites -- 4.4.2 Hydrodynamic modelling layers -- 4.4.3 Exclusion zone masks -- 4.5 Spatial Model fitting -- 4.5.1 Background on statistical techniques for designing sediment sampling program -- 4.5.2 Results from statistically derived sampling design - East Arm -- 4.5.3 Results from statistically derived sampling design - Outer Harbour -- 4.5.4 Representation of sampling sites mapped with hydrodynamic and sediment modelling parameters -- 4.6 Harbour Sediment Zonation, and conceptual representation: -- 5 Conclusions -- 6 References -- 7 Appendix 1
Language
English
Subject
Sediment quality; Tidal hydrodynamics; sediment sampling; design analysis
Publisher name
Northern Territory Government
Place of publication
Palmerston
Series
Report Number 44/2019
Format
43, 74 pages : colour maps ; 30 cm
File type
application/pdf
ISBN
9781743502303
Use
Attribution International 4.0 (CC BY 4.0)
Copyright owner
Northern Territory Government
License
https://creativecommons.org/licenses/by/4.0/
Parent handle
https://hdl.handle.net/10070/755961
Citation address
https://hdl.handle.net/10070/765802

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