Metadata details

AAS_4301_Scatterometer-derived_ice_thickness_proxy

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).

Citation
Fraser, A.D., Cartwright, J. and Ramm, N. (2021) ASCAT C-band backscatter-derived sea ice freeboard in the Weddell Sea, Ver. 1, Australian Antarctic Data Centre - doi:10.26179/5ddcb1e01aeda, Accessed: 2026-05-30
Title
ASCAT C-band backscatter-derived sea ice freeboard in the Weddell Sea
Data Centre
Australian Antarctic Data Centre, Australia
DOI
doi:10.26179/5ddcb1e01aeda
Created Date
2019-11-25
Revision Date
2021-03-04
Expected Date of Data Release
2021-03-04
Data Version
1
Parent record
None

Datasets and documents

    Related links

    Description

    This dataset is a time series of sea ice freeboard proxy estimation based on ASCAT C-band backscatter measurements.
    File format is unformatted binary, with each file 632*664 pixels, and 32 bits per pixel (floating point).
    Two datasets are presented here, as detailed in University of Tasmania Honours thesis by Nicola Ramm: "unmasked", i.e., no attempt to mask multiyear and marginal sea ice, and "masked", where these are masked based on backscatter.

    The grid used by this dataset is described here:
    https://nsidc.org/data/polar-stereo/ps_grids.html

    The methods are described in an honours thesis by Nicola Ramm, University of Tasmania.

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    Purpose

    A proxy measurement of sea ice freeboard, as detailed in University of Tasmania Honours thesis by Nicola Ramm.

    Quality

    ASCAT data calibration prior to July 2007 is of suspected poorer quality.

    Access

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

    Temporal Coverages

    Spatial Coverages

    Latitude

    Northernmost:
    -55
    Southernmost:
    -90

    Longitude

    Westernmost:
    -60
    Easternmost:
    156

    Data Resolution

    Latitude Resolution:
    12 Kilometre(s)
    Longitude Resolution:
    12 Kilometre(s)

    Science Keywords

    Additional Keywords

      None

    Locations

    • GEOGRAPHIC REGION > POLAR
    • OCEAN > SOUTHERN OCEAN
    • CONTINENT > ANTARCTICA

    Platforms

    • Meteorological Operational Satellite - A

    Instruments

    • Advanced Scatterometer

    Researchers

    • fraser, alexander (INVESTIGATOR,DIF AUTHOR)
    • cartwright, jessica (INVESTIGATOR,TECHNICAL CONTACT)
    • ramm, nicola (INVESTIGATOR,TECHNICAL CONTACT)

    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=AAS_4301_Scatterometer-derived_ice_thickness_proxy when using these data.

    Project

      ISO Topic

      • CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
      • OCEANS

      Dataset Language

      • English

      Orignating Centre

      • Australian Antarctic Division

      Dataset Progress

      • COMPLETE

      IDN Node

      • AMD/AU
      • CEOS
      • AMD
      • ACE/CRC

      Metadata Revision History

        2019-11-15 - record created by Alex Fraser. 2021-03-04 - record updated by Dave Connell to publicly release the data.

      Creative Commons License