Station footprint for Casey, Davis and MawsonEntry ID: SOE_station_footprint
Abstract: This indicator is no longer maintained, and is considered OBSOLETE.
The area of land occupied by buildings, tanks, other structures (eg cable trays, scientific apparatus, equipment housing, concrete pads and radomes), roads and aeronautical features at Australia's three Permanent Stations in Antarctica.
TYPE OF INDICATOR
There are three types of indicators used in this ... report:
1.Describes the CONDITION of important elements of a system;
2.Show the extent of the major PRESSURES exerted on a system;
3.Determine RESPONSES to either condition or changes in the condition of a system.
This indicator is one of: PRESSURE
RATIONALE FOR INDICATOR SELECTION
Changes of land use lead to changes in the condition of the environment. In Australia's Antarctic Territory much of the human activity is concentrated around the Stations and refuges which are bases for scientific research. Changes in the amount of infrastructure at these sites is a reflection of human activity. The area of land occupied by this infrastructure is one measure of the effect on the environment of human activity. The total area of land occupied by infrastructure at Casey, Davis and Mawson Stations is calculated for this indicator, as the major proportion of the infrastructure is located at these sites.
DESIGN AND STRATEGY FOR INDICATOR MONITORING PROGRAM
Surveying organised by the Australian Antarctic Division's Mapping Officer is carried out each summer in Australia's Antarctic Territory. This work enables regular updates to be made to the Australian Antarctic Data Centre's Permanent Stations GIS datasets. New features are added using ground survey data. Removed features are flagged and retained in the datasets but do not contribute to the area calculation.
Station Leaders are instructed to notify the Technical Contact for this Indicator if any of the following types of structure are erected, removed, moved or modified on station or in the local area of the station.
-tanks (fuel, water) and bunding
-science (including meteorological) apparatus
-equipment housing external to the buildings
-wind power generators
-comms feeder lines
When such changes occur, Station Leaders are asked for the approximate dimensions of new structures or modifications, and these structures are marked for surveying at the next available opportunity.
It may be possible in the future to write a script to automate the calculation process.
LINKS TO OTHER INDICATORS
Determining areas from which structures in the AAT are visible is central to the indicator: Annual variations in the visibility 'footprint' of structures in the Australian Antarctic Territory. The areas occupied by the structures and the heights of the structures will influence their visibility. The Australian continental stations cover a significant portion of the area occupied by structures within the AAT and so the areas determined for this indicator will be influential.
Data Set Citation
Dataset Originator/Creator: Summerson, R.
Dataset Title: Station footprint for Casey, Davis and Mawson
Dataset Series Name: CAASM Metadata
Dataset Release Date: 2001-04-26
Dataset Publisher: Australian Antarctic Data CentreOnline Resource: https://data.aad.gov.au/aadc/metadata/metadata_redirect.cfm?md=/AMD...
Start Date: 2001-01-01Stop Date: 2001-12-31
ISO Topic Category
Quality This indicator is now OBSOLETE. These data are no longer archived in this location, and are therefore not up-to-date.
The total area occupied by buildings, tanks (fuel, water, waste treatment), other structures (structures in the Australian Antarctic Data Centre's Geographical Information System structures shapefiles), roads and aeronautical features (helipads and landing ... grounds)at Casey, Davis and Mawson Stations is calculated. These features are all represented by polygon data in the Australian Antarctic Data Centre's Geographical Information System (GIS). Planimetric areas are calculated after the data are projected to a Lambert Azimuthal (equal area) projection. This is done using ArcInfo GIS software.
Refer to the Related URLs for the projection files and a more detailed outline of the analysis procedure.
The majority of the GIS data were captured photogrammetrically from aerial photography flown in January 1994 (Casey), February 1997 (Davis) and March 1996 (Mawson). The data are updated periodically to reflect changes in station infrastructure. Each summer the locations of new features are surveyed.
Refer to the metadata records of the Aeronautical, Buildings, Roads, Structures and Tanks GIS Datasets for Casey, Davis and Mawson Stations for more information.
Access Constraints These data are publicly available for download from the URL given below.
Use Constraints This data set conforms to the PICCCBY Attribution License (http://creativecommons.org/licenses/by/3.0/).
Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=SOE_stat... when using these data.
Data Set Progress
Distribution Media: HTTP
Distribution Size: 4 kb
Distribution Format: projection files, html
Role: TECHNICAL CONTACT
Role: DIF AUTHOR
Phone: +61 3 6232 3577
Fax: +61 3 6232 3351
Email: gis at aad.gov.au
Australian Antarctic Division 203 Channel Highway
Province or State: Tasmania
Postal Code: 7050
Phone: +61 2 6272 4615
Fax: +61 2 6272 4687
Email: rupert.summerson at brs.gov.au
Bureau of Rural Sciences PO Box E11
Province or State: Australian Capital Territory
Postal Code: 2604
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2001-04-26
Last DIF Revision Date: 2014-09-12