Data

Digital Elevation Model of Larsemann Hills, Antarctica

Australian Antarctic Division
Smith, DT. ; SMITH, DAVID THOMAS
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=http://data.aad.gov.au/metadata/larsemann_hills_dem&rft.title=Digital Elevation Model of Larsemann Hills, Antarctica&rft.identifier=http://data.aad.gov.au/metadata/larsemann_hills_dem&rft.publisher=Australian Antarctic Data Centre&rft.description=A Digital Elevation Model (DEM) of the Larsemann Hills with cell size 10 metres was interpolated from input coastline, contour, spot height (point locations with an elevation attribute) and lake data from the dataset described by the metadata record 'Larsemann Hills - Mapping from aerial photography captured February 1998' with Entry ID: gis135.The input data for the islands and much of the continent coastal area is estimated to have horizontal accuracy of about 5 metres and vertical accuracy of about 5 metres. The input data for a mainly inland area in the south-east of the data coverage is estimated to have horizontal accuracy of about 15 metres and vertical accuracy of about 15 metres. The spatial coverage for these two categories of input data is shown in a map linked to this metadata record.The interpolation was done using the Topo to Raster tool in ArcGIS.In the interpolation process all cells within a lake are assigned to the minimum elevation value of all cells along the shoreline. i.e. the interpolation is flat across the lake.The output DEM was clipped to the extents of the input data.The dataset available from a Related URL in this metadata record includes a text file with the parameters used with the Topo to Raster tool.The DEM is stored in the UTM Zone 43S projection.The horizontal datum is WGS84. The vertical datum is Mean Sea Level.The DEM was initially created as a raster in an ESRI file geodatabase. The geodatabase also includes slope, aspect and hillshade rasters derived from the DEM using ArcGIS. Slope is in degrees. Azimuth 315 degrees and altitude 45 degrees were chosen for the hillshade.The DEM was exported using ArcGIS to two other formats which are included in the dataset available from a Related URL in this metadata record:1 A geotiff; and 2 An ascii file in ESRI's ascii format for rasters.Progress Code: completed&rft.creator=Smith, DT. &rft.creator=SMITH, DAVID THOMAS &rft.date=2019&rft.coverage=westlimit=75.9408; southlimit=-69.4816; eastlimit=76.519; northlimit=-69.3424&rft.coverage=westlimit=75.9408; southlimit=-69.4816; eastlimit=76.519; northlimit=-69.3424&rft_rights=The dataset is available for download from a provided URL.&rft_rights=Attribution 4.0 International (CC BY 4.0) 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=larsemann_hills_dem when using these data.&rft_rights=This metadata record is publicly available.&rft_subject=planningCadastre&rft_subject=environment&rft_subject=EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION > DIGITAL ELEVATION/TERRAIN MODEL (DEM)&rft_subject=TOPOGRAPHY&rft_subject=TERRAIN&rft_subject=Computer > Computer&rft_subject=DEM > Digital Elevation Model&rft_subject=AMD/AU&rft_subject=AMD&rft_subject=CEOS&rft_subject=GEOGRAPHIC REGION > POLAR&rft_subject=CONTINENT > ANTARCTICA&rft.type=dataset&rft.language=English Access the data
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Attribution 4.0 International (CC BY 4.0)
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The dataset is available for download from a provided URL.

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=larsemann_hills_dem when using these data.

This metadata record is publicly available.

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Full description

A Digital Elevation Model (DEM) of the Larsemann Hills with cell size 10 metres was interpolated from input coastline, contour, spot height (point locations with an elevation attribute) and lake data from the dataset described by the metadata record 'Larsemann Hills - Mapping from aerial photography captured February 1998' with Entry ID: gis135.
The input data for the islands and much of the continent coastal area is estimated to have horizontal accuracy of about 5 metres and vertical accuracy of about 5 metres. The input data for a mainly inland area in the south-east of the data coverage is estimated to have horizontal accuracy of about 15 metres and vertical accuracy of about 15 metres. The spatial coverage for these two categories of input data is shown in a map linked to this metadata record.
The interpolation was done using the Topo to Raster tool in ArcGIS.
In the interpolation process all cells within a lake are assigned to the minimum elevation value of all cells along the shoreline. i.e. the interpolation is flat across the lake.
The output DEM was clipped to the extents of the input data.
The dataset available from a Related URL in this metadata record includes a text file with the parameters used with the Topo to Raster tool.
The DEM is stored in the UTM Zone 43S projection.
The horizontal datum is WGS84. The vertical datum is Mean Sea Level.
The DEM was initially created as a raster in an ESRI file geodatabase. The geodatabase also includes slope, aspect and hillshade rasters derived from the DEM using ArcGIS. Slope is in degrees. Azimuth 315 degrees and altitude 45 degrees were chosen for the hillshade.
The DEM was exported using ArcGIS to two other formats which are included in the dataset available from a Related URL in this metadata record:
1 A geotiff; and
2 An ascii file in ESRI's ascii format for rasters.

Lineage

Progress Code: completed

Data time period: 1998-02-01 to 1998-02-01

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76.519,-69.3424 76.519,-69.4816 75.9408,-69.4816 75.9408,-69.3424 76.519,-69.3424

76.2299,-69.412

text: westlimit=75.9408; southlimit=-69.4816; eastlimit=76.519; northlimit=-69.3424

Subjects
AMD | AMD/AU | CEOS | CONTINENT > ANTARCTICA | Computer > Computer | DEM > Digital Elevation Model | EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION > DIGITAL ELEVATION/TERRAIN MODEL (DEM) | GEOGRAPHIC REGION > POLAR | TERRAIN | TOPOGRAPHY | environment | planningCadastre |

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Other Information
Download point for the dataset. (GET DATA)

url : https://data.aad.gov.au/eds/4886/download

Metadata record 'Larsemann Hills - Mapping from aerial photography captured February 1998'. (VIEW RELATED INFORMATION)

url : https://http://data.aad.gov.au/metadata/records/gis135

Map showing spatial coverages and estimated planimetric and vertical accuracies of groups of input data. (VIEW RELATED INFORMATION)

url : https://data.aad.gov.au/aadc/mapcat/display_map.cfm?map_id=14866

Citation reference for this metadata record and dataset. (VIEW RELATED INFORMATION)

url : https://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=larsemann_hills_dem

Identifiers
  • global : larsemann_hills_dem
ACN 633 798 857