Data

Orthorectification of GeoEye-1 satellite imagery of northern Macquarie Island, captured 10 October 2011

Australian Antarctic Data Centre
BENDER, ANGELA ; BROLSMA, HENK
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://data.aad.gov.au/metadata/records/macquarie_island_geoeye_10oct2011&rft.title=Orthorectification of GeoEye-1 satellite imagery of northern Macquarie Island, captured 10 October 2011&rft.identifier=https://data.aad.gov.au/metadata/records/macquarie_island_geoeye_10oct2011&rft.publisher=Australian Antarctic Data Centre&rft.description=The Australian Antarctic Data Centre (AADC) has GeoEye-1 satellite imagery of northern Macquarie Island, captured 10 October 2011. The satellite provides panchromatic imagery with 0.41 metre resolution and multispectral imagery with 1.65 metre resolution. The panchromatic and multispectral bands were orthorectified using the RPC data files and the AADC's 5 metre resolution Digital Elevation Model of the island (see metadata record 'Macquarie Island AIRSAR DEM (Digital Elevation Model)', Entry ID: macca_dem_gis). The RPC orthorectification process works on a pixel-by-pixel basis to provide correct ground locations. The orthorectified image files are called GE_10Oct2011_pan_orc and GE_10Oct2011_ms_orc. These two images were then pansharpened using Gram-Schmidt spectral sharpening, the resulting image is called GE_10Oct2011_ps_orc. The processing was done by Angela Bender of the AADC using IDL/ENVI version 4.8. The DEM was unprojected before the orthorectifications were done as ENVI version 4.8 requires a DEM, if used, to be unprojected. Ground control points compiled by Angela Bender for the area covered by the image are provided (see a Related URL) but were not used in the orthorectification process. The ground control points were sourced from the AADC's survey control database and topographic data. The ground control points could be used for future orthorectifications. The pansharpened image could be coregistered with an orthorectified Quickbird image captured 15 March 2005 (see metadata record 'Macquarie Island Quickbird Image (15 March 2005) orthorectification', Entry ID: Macquarie_Quickbird_15Mar2005) using 'image to image' transformation. If this was done, the ground control points mentioned above could be used as a check of the coregistration. They could also be used to get an error estimate of the orthorectified Quickbird image.&rft.creator=BENDER, ANGELA &rft.creator=BROLSMA, HENK &rft.date=2014&rft.coverage=northlimit=-54.4839; southlimit=-54.5728; westlimit=158.8417; eastLimit=158.9494; projection=WGS84&rft.coverage=northlimit=-54.4839; southlimit=-54.5728; westlimit=158.8417; eastLimit=158.9494; projection=WGS84&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=macquarie_island_geoeye_10oct2011 when using these data.&rft_subject=imageryBaseMapsEarthCover&rft_subject=INFRARED IMAGERY&rft_subject=EARTH SCIENCE&rft_subject=SPECTRAL/ENGINEERING&rft_subject=INFRARED WAVELENGTHS&rft_subject=VISIBLE IMAGERY&rft_subject=VISIBLE WAVELENGTHS&rft_subject=Satellite Image&rft_subject=Digital Globe&rft_subject=DigitalGlobe&rft_subject=GeoEye&rft_subject=CAMERAS&rft_subject=HRPC > High Resolution Panchromatic Camera&rft_subject=GEOEYE-1&rft_subject=SATELLITES&rft_subject=OCEAN > SOUTHERN OCEAN > MACQUARIE ISLAND&rft_subject=GEOGRAPHIC REGION > POLAR&rft_place=Hobart&rft.type=dataset&rft.language=English Access the data
Cite Saved to MyRDA Save to MyRDA

Licence & Rights:

view details

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=macquarie_island_geoeye_10oct2011 when using these data.

Access:

Other view details

The distribution of GeoEye-1 and other DigitalGlobe imagery held by the Australian Antarctic Data Centre (AADC) is restricted due to copyright. The imagery may only be provided to: 1 Australian Antarctic Division staff; or 2 Those involved in a joint project with the Australian Antarctic Division for which a written agreement exists. Please contact the AADC for access to the imagery.

Brief description

The Australian Antarctic Data Centre (AADC) has GeoEye-1 satellite imagery of northern Macquarie Island, captured 10 October 2011. The satellite provides panchromatic imagery with 0.41 metre resolution and multispectral imagery with 1.65 metre resolution.

The panchromatic and multispectral bands were orthorectified using the RPC data files and the AADC's 5 metre resolution Digital Elevation Model of the island (see metadata record 'Macquarie Island AIRSAR DEM (Digital Elevation Model)', Entry ID: macca_dem_gis). The RPC orthorectification process works on a pixel-by-pixel basis to provide correct ground locations. The orthorectified image files are called GE_10Oct2011_pan_orc and GE_10Oct2011_ms_orc. These two images were then pansharpened using Gram-Schmidt spectral sharpening, the resulting image is called GE_10Oct2011_ps_orc.

The processing was done by Angela Bender of the AADC using IDL/ENVI version 4.8. The DEM was unprojected before the orthorectifications were done as ENVI version 4.8 requires a DEM, if used, to be unprojected.
Ground control points compiled by Angela Bender for the area covered by the image are provided (see a Related URL) but were not used in the orthorectification process. The ground control points were sourced from the AADC's survey control database and topographic data. The ground control points could be used for future orthorectifications.

The pansharpened image could be coregistered with an orthorectified Quickbird image captured 15 March 2005 (see metadata record 'Macquarie Island Quickbird Image (15 March 2005) orthorectification', Entry ID: Macquarie_Quickbird_15Mar2005) using 'image to image' transformation.
If this was done, the ground control points mentioned above could be used as a check of the coregistration. They could also be used to get an error estimate of the orthorectified Quickbird image.

Issued: 2014-01-14

Data time period: 2011-10-10 to 2011-10-10

This dataset is part of a larger collection

Click to explore relationships graph
Help

Related Organisations

Related People

158.9494,-54.4839 158.9494,-54.5728 158.8417,-54.5728 158.8417,-54.4839 158.9494,-54.4839

158.89555,-54.52835

text: northlimit=-54.4839; southlimit=-54.5728; westlimit=158.8417; eastLimit=158.9494; projection=WGS84

Subjects
CAMERAS | Digital Globe | DigitalGlobe | EARTH SCIENCE | GEOEYE-1 | GEOGRAPHIC REGION > POLAR | GeoEye | HRPC > High Resolution Panchromatic Camera | INFRARED IMAGERY | INFRARED WAVELENGTHS | OCEAN > SOUTHERN OCEAN > MACQUARIE ISLAND | SATELLITES | SPECTRAL/ENGINEERING | Satellite Image | VISIBLE IMAGERY | VISIBLE WAVELENGTHS | imageryBaseMapsEarthCover |

User Contributed Tags    

Login to tag this record with meaningful keywords to make it easier to discover

Other Information

AU-ANL:PEAU : http://nla.gov.au/nla.party-617536

Identifiers
Similar data you may be interested in: