Islands NE of Brattstrand Bluff penguin GIS datasetEntry ID: bratts_penguin_gis
Abstract: Aerial photography (35mm film) of penguin colonies was acquired over some islands north east of Brattstrand Bluff islands (Eric Woehler).
The penguin colonies were traced, then digitised (John Cox), and saved as DXF-files.
Using the ArcView extension 'Register and Transform' (Tom Velthuis), The DXF-files were brought into a GIS and transformed to the appropriate islands.
Update May 2015 -
This ... dataset has been rename from "Brattstrand Bluff penguin GIS dataset" to "Islands NE of Brattstrand Bluff penguin GIS dataset" to better describe the location of the colonies. The penguin colonies are on a small group of islands approximately 12km north east of Brattstrand Bluff. Latitude 69.148 south and longitude 77.268 east.
The Data Centre does not have a copy of the original photographs or described GIS data. In May 2015, the Data Centre has attached the following to this record:
The DXF file produced by John Cox by digitising the aerial photography. Note this document is not georeferenced.
Four photographs taken in 2009 by Barbara Wienecke, Seabird Ecologist, showing penguin colonies on these islands.
A shapefile exists of the digitised colonies. The digitising by Ursula Harris, Australian Antarctic Data Centre, was done by georeferencing the DXF drawing over unprocessed Quickbird Image 05NOV15042413-M1BS-052187281010_01_P002. It was done in two parts, the largest island and then the two smaller islands. This allowed for better matching. The accuracy of this data is unknown.
Data Set Citation
Dataset Originator/Creator: Woehler, E. and Harris, U.
Dataset Title: Islands NE of Brattstrand Bluff penguin GIS dataset
Dataset Series Name: CAASM Metadata
Dataset Release Date: 2015-05-11
Dataset Publisher: Australian Antarctic Data Centre
Dataset DOI: doi:10.4225/15/555033F141A84Online Resource: https://data.aad.gov.au/aadc/metadata/metadata_redirect.cfm?md=/AMD...
Start Date: 1981-11-01Stop Date: 1982-04-01
Quality TOPIC:Planimetric accuracy of penguin colony transformations.
NOTE: The planimetric accuracy stated herein is relative to the existing GIS, coastline and penguin colony data - not 'absolute planimetric accuracy'. That is, it was assumed that the coastline and penguin colony data existing in the GIS is without error. Also, errors accumulated in the creation of the digitised penguin colonies (.DXF files) have not been considered here. The stated accuracy is an estimate - was not derived by statistical means.
Whilst a digitised colony exists on the islands north east of Brattstrand Bluff 'X', transformations have not been performed due to inappropriate GIS base-data.
Access Constraints These data are available for download from the provided URL.
Stored data format: Arc/Info coverages and export files - Lost
Available format type: DXF, Jpegs and shapefiles stored as geographicals with a projection file.
Access constraint: ASCII files are available on the web. Conditions apply.
Use Constraints This data set conforms to the PICCCBY Attribution License
Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=bratts_p... when using these data.
Data Set Progress
Email: eric.woehler at gmail.com
Province or State: Tasmania
Postal Code: 7001
Role: TECHNICAL CONTACT
Role: DIF AUTHOR
Phone: +61 3 6232 3519
Fax: +61 3 6232 3351
Email: gis at aad.gov.au
Australian Antarctic Division 203 Channel Highway
Province or State: Tasmania
Postal Code: 7050
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2000-02-29
Last DIF Revision Date: 2017-08-23