[Parameters: Topic='BIOSPHERE', Term='AQUATIC ECOSYSTEMS']
Biological data from the Environmental Impact Assessment of the Davis Sewage OutfallEntry ID: DAVIS_STP_Biota
Abstract: Untreated, macerated wastewater effluent has been discharged to the sea at Davis Station since 2005, when the old wastewater treatment infrastructure was removed. This environmental assessment was instigated to guide the choice of the most suitable wastewater treatment facility at Davis. The assessment will support decisions that enable Australia to meet the standards set for the discharge of ... wastewaters in Antarctica in national legislation (Waste Management Regulations of the Antarctic Treaty Environmental Protection Act - ATEP) and to meet international commitments (the Madrid Protocol) and to meet Australia's aspirations to be a leader in Antarctic environmental protection.
The overall objective was to provide environmental information in support of an operational infrastructure project to upgrade wastewater treatment at Davis. This information is required to ensure that the upgrade satisfies national legislation (ATEP/Waste Management Regulations), international commitments (the Madrid Protocol) and maintain the AAD's status as an international leader in environmental management. The specific objectives were to:
1. Wastewater properties: Determine the properties of discharged wastewater (contaminant levels, toxicity, microbiological hazards) as the basis for recommendations on the required level of treatment and provide further consideration of what might constitute adequate dilution and dispersal for discharge to the nearshore marine environment
2. Dispersal and dilution characteristics of marine environment: Assess the dispersing characteristics of the immediate nearshore marine environment in the vicinity of Davis Station to determine whether conditions at the existing site of effluent discharge are adequate to meet the ATEP requirement of initial dilution and rapid dispersal.
3. Environmental impacts: Describe the nature and extent of impacts to the marine environment associated with present wastewater discharge practices at Davis and determine whether wastewater discharge practices have adversely affected the local environment.
4. Evaluate treatment options: Evaluate the different levels of treatment required to mitigate and/or prevent various environmental impacts and reduce environmental risks.
Purpose: This is the master metadata record for the biological data for the project. It is linked to many datasets ranging from sediment macrofauna to epifaunal and macroalgal data.
(Click for Interactive Map)
Start Date: 1998-12-08Stop Date: 2001-09-05
Latitude Resolution: 10 m
Longitude Resolution: 10 m
Horizontal Resolution Range: 1 meter - < 30 meters
Quality The Spot (10 metre resolution) data were mapped from the following scenes:
- SPOT Scene 246 - 491 (March 13 1988)
- SPOT Scene 246 - 491 (March 15 1988)
All mapping work was captured using a Zeiss P2 analytical stereo plotter and Microstation version 5 on a Universal Transverse Mercator grid.
The horizontal ... mapping accuracy was +/- 50 metres. The vertical mapping accuracy was +/- 20 metres.
The polygon data were edited, cleaned and polygonised using Arc/Info. Maximum fuzzy tolerance for cleaning was 0.01 metres.
Note: The link to shapefiles available for downloading include data for Holme Bay and Framnes Mountains. Data specifically for this metadata record is labelled in the description as Holme Bay and has a dataset id = 98
NOTE! SPOT satellites 1,2 and 3 have been selected as keywords in this metadata record, however, it's not known exactly which of these three satellites this image came from.
Access Constraints These data are not yet publicly available for download.
Use Constraints This data set conforms to the PICCCBY Attribution License
Please follow instructions listed in the citation reference provided at the URL below when using these data.
Data Set Progress
Distribution Media: HTTP
Distribution Format: shapefiles
Role: TECHNICAL CONTACT
Role: DIF AUTHOR
Phone: +61 3 6232 3519
Fax: +61 3 6232 3351
Email: metadata at aad.gov.au
Australian Antarctic Division 203 Channel Highway
Province or State: Tasmania
Postal Code: 7050
Creation and Review Dates
DIF Creation Date: 2001-09-05
Last DIF Revision Date: 2008-08-19