[Location: Location_Category='OCEAN', Location_Type='SOUTHERN OCEAN', Location_Subregion1='HEARD AND MCDONALD ISLANDS']
Orthorectification of WorldView-2 imagery of eastern Heard Island, acquired 23 December 2010Entry ID: worldview-2_23dec2010_ortho
Abstract: This WorldView-2 image of the east coast of Heard Island was collected on 23 Dec. 2010. (Satellite Image Catalogue id=2262 and 2263) The 0.5 m resolution panchromatic band and 2 m resolution multispectral bands were separately orthorectified and two separate image tiles were mosaiced.
The images are the result of a rigorous orthorectification of the panchromatic band and eight multispectral bands ... of the two WorldView-2 images. The images were orthorectified with the TerraSAR-X DEM acquired in Oct 2009. The digital elevation model used in the orthrectification is described by the metadata record 'A Digital Elevation Model of Heard Island derived from TerraSAR satellite imagery' - Entry ID: heard_dem_terrasar
The orthorectification of the two Worldview-2 image tiles was carried out in ENVI 4.8. No GCPs were used for the orthorectification process given the very high absolute accuracy of the RPC positioning of WorldView-2. Previously problems were encountered (significant geometric errors) with orthorectification of IKONOS 2004 imagery with DGPS GCPs collected by Dr Jenny Scott. The current orthorectification is considered more accurate given the high absolute spatial accuracy of WorldView-2 (CE90 = 3.5 m) and the more detailed TerraSAR-X DEM of Heard Island. The resulting image is considered a base image for subsequent geometric processing and co-registration of other images (e.g. IKONOS image acquired in 2004 for change detection).
The two tiles were mosaiced along a manually digitised cutline in ENVI. For a more detailed description of this process we refer to the report available for download from the provided URL.
Personnel involved with this dataset.
Dr Arko Lucieer (principal investigator)
Iain Clarke (research assistant: geometric corrections)
Desiree Treichler (research assistant: radiometric and atmospheric corrections)
Data Set Citation
Dataset Originator/Creator: Lucieer, A.
Dataset Title: Orthorectification of WorldView-2 imagery of eastern Heard Island, acquired 23 December 2010
Dataset Series Name: CAASM Metadata
Dataset Publisher: Australian Antarctic Data Centre
Version: 1Online Resource: https://data.aad.gov.au/metadata/records/worldview-2_23dec2010_ortho
Start Date: 2010-12-23Stop Date: 2010-12-23
Latitude Resolution: 0.5 Metre(s)
Longitude Resolution: 0.5 Metre(s)
Quality The images are very large and any processing requires significant computing power (high-end desktop PC) and a lot of processing time.
Access Constraints A PDF document providing further details is available for download from the provided URL.
Access to the image itself is limited owing to copyright issues. Contact the Australian Antarctic Data Centre for details and further information.
Use Constraints This data set conforms to the PICCCBY 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=worldvie... when using these data.
Data Set Progress
Distribution Media: HTTP
Distribution Size: 6.34 GB
Distribution Format: BSQ
Role: TECHNICAL CONTACT
Role: DIF AUTHOR
Phone: +61 3 6226 2140
Email: arko.lucieer at utas.edu.au
Censis Private Bag 76 University of Tasmania School Of Geography
Province or State: Tasmania
Postal Code: 7001
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2013-05-07
Last DIF Revision Date: 2019-03-20