Data

Windmill Islands penguin colonies digitised from 1990 Linhof aerial photography

Australian Ocean Data Network
Harris, U. and Woehler, E. ; WOEHLER, ERIC ; HARRIS, URSULA
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=Dataset DOI&rft.title=Windmill Islands penguin colonies digitised from 1990 Linhof aerial photography&rft.identifier=Dataset DOI&rft.publisher=Australian Antarctic Data Centre&rft.description=Aerial photography (Linhof) of penguin colonies was acquired over the Windmill 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. Data conforms to SCAR Feature Catalogue which can be searched (refer to link below).Progress Code: completedStatement: 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. The location of the colonies may be considered accurate to approximately (+/-20m). Exceptions include: -'Holl Island Map 2' is mostly (+/-20m). Exception of one colony at (+/-30m). -'Oconner Island' (+/-30m) -'Peterson Island 4' (+/-60m) -'Peterson Island 5a' (+/-150m) -'Peterson Island 5b' (+/-150m)&rft.creator=Harris, U. and Woehler, E. &rft.creator=WOEHLER, ERIC &rft.creator=HARRIS, URSULA &rft.date=2000&rft.coverage=westlimit=110.22034; southlimit=-66.52202; eastlimit=110.71472; northlimit=-66.20488&rft.coverage=westlimit=110.22034; southlimit=-66.52202; eastlimit=110.71472; northlimit=-66.20488&rft_rights=This metadata record is publicly available.&rft_rights=These data are publicly available for download from the provided URL.&rft_rights= https://creativecommons.org/licenses/by/4.0/legalcode&rft_rights=This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=wind_penguin_gis when using these data. http://creativecommons.org/licenses/by/4.0/).&rft_rights=Portable Network Graphic&rft_rights=https://i.creativecommons.org/l/by/3.0/88x31.png&rft_rights=Creative Commons by Attribution logo&rft_rights=Attribution 4.0 International (CC BY 4.0)&rft_rights=Legal code for Creative Commons by Attribution 4.0 International license&rft_rights=Attribution 4.0 International (CC BY 4.0)&rft_rights= https://creativecommons.org/licenses/by/4.0/legalcode&rft.type=dataset&rft.language=English Access the data

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This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/).

Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=wind_penguin_gis when using these data.
http://creativecommons.org/licenses/by/4.0/).

Attribution 4.0 International (CC BY 4.0)

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

This metadata record is publicly available.

These data are publicly available for download from the provided URL.

Portable Network Graphic

https://i.creativecommons.org/l/by/3.0/88x31.png

Creative Commons by Attribution logo

Attribution 4.0 International (CC BY 4.0)

Legal code for Creative Commons by Attribution 4.0 International license

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Brief description

Aerial photography (Linhof) of penguin colonies was acquired over the Windmill 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. Data conforms to SCAR Feature Catalogue which can be searched (refer to link below).

Lineage

Progress Code: completed
Statement: 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.

The location of the colonies may be considered accurate to approximately (+/-20m).
Exceptions include:
-'Holl Island Map 2' is mostly (+/-20m). Exception of one colony at (+/-30m).
-'Oconner Island' (+/-30m)
-'Peterson Island 4' (+/-60m)
-'Peterson Island 5a' (+/-150m)
-'Peterson Island 5b' (+/-150m)

Data time period: 1990-12-16 to 1990-12-16

110.71472,-66.20488 110.71472,-66.52202 110.22034,-66.52202 110.22034,-66.20488 110.71472,-66.20488

110.46753,-66.36345

text: westlimit=110.22034; southlimit=-66.52202; eastlimit=110.71472; northlimit=-66.20488

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Other Information
See the related metadata record, "Aerial Photographic Census of Birds in the Windmill Islands in 1990-91" (EXTENDED METADATA)

uri : https://data.aad.gov.au/metadata/ASAC_1219_AAT_Img_C_90

Download point for the data: Penguins (GET DATA > DIRECT DOWNLOAD)

uri : https://data.aad.gov.au/eds/1394/download

SCAR Feature Catalogue (VIEW RELATED INFORMATION)

uri : http://data.aad.gov.au/aadc/ftc/search_ftc.cfm