Metadata details

GRI_ORT_SLC_FIN

All scientific data collected by the Australian Antarctic program (AAp) are eventually described in the Catalogue of Australian Antarctic and Subantarctic Metadata (CAASM). CAASM can be used to search through AAp data descriptions, and it also provides links to access publicly available datasets, which can either be immediately downloaded or obtained from the Australian Antarctic Data Centre (AADC).

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Citation
Brolsma, H. (2010) Slope corrected orthometric heights of Antarctica derived from ERS Radar Altimetry, Ver. 1, Australian Antarctic Data Centre - doi:10.26179/5b6cf675c9336, Accessed: 2022-05-18
Title
Slope corrected orthometric heights of Antarctica derived from ERS Radar Altimetry
Data Centre
Australian Antarctic Data Centre, Australia
DOI
doi:10.26179/5b6cf675c9336
Created Date
2003-02-11
Revision Date
2019-04-05
Parent record
ERS_DTM

Datasets and documents

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    Description

    Shapefile (points) of slope corrected orthometric heights derived from ERS radar altimetry as described in the paper 'A Digital Terrain Ice Model of Antarctica derived by ERS Radar Altimeter Data' by J. Ihde, J. Eck, U. Schirmer.

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    Quality

    Satellite radar altimetry was used to derive the geometry of the surface of the Antarctic continent. The method is particularly effective over ocean, shelf and flat inland ice. Data from ERS-1 and ERS-2 radar altimeters was processed to produce heights with accuracies of a few centimetres over the ocean areas and 1 - 2 decimetres for the flat ice sheets of Antarctica. Distances between sample points varies from 5km near the pole to 10 km at the northern extremes.

    The derivation process is described in a paper titled 'A Digital Terrain Ice Model of Antarctica derived by ERS Radar Altimeter Data' by J. Ihde, J. Eck, U. Schirmer. Coordinates listed in the file GRI.ORT.SLC.FIN referred to in the paper were used to generate this shapefile. Only points with valid heights were included in the shapefile - 297,845 out of a total of 613,800. Elevation values of 999999 indicate invalid heights in the file GRI.ORT.SLC.FIN.

    Positions (latitude, longitude) are based on WGS84. Orthometric heights (elevation) are related to EGM96 geoid.

    The shapefile and paper are available for download from Related URLs.

    Access

    Copies of the data and paper are available for download from the provided URL.

    Temporal Coverages

    Spatial Coverages

    Latitude

    Northernmost:
    -65
    Southernmost:
    -82

    Longitude

    Westernmost:
    -180
    Easternmost:
    180
    Minimum Altitude:
    8 Metres
    Maximum Altitude:
    4100 Metres

    Data Resolution

    Latitude Resolution:
    5000 Metre(s)
    Longitude Resolution:
    5000 Metre(s)

    Science Keywords

    Additional Keywords

    • ANTARCTICA
    • DTM
    • ALTIMETRY
    • ERS
    • RADAR
    • ELEVATION

    Locations

    • CONTINENT > ANTARCTICA
    • GEOGRAPHIC REGION > POLAR

    Platforms

    • European Remote Sensing Satellite-1
    • European Remote Sensing Satellite-2

    Instruments

    • Radar Altimeters

    Researchers

    • brolsma (retired), henk (INVESTIGATOR,TECHNICAL CONTACT)
    • smith, david (DIF AUTHOR)

    Use Constraints

    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=GRI_ORT_SLC_FIN when using these data

    Creative Commons License