Metadata details

law_dome_annual_msa

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
Curran, M. and van Ommen, T. (2011) 150 year MSA sea ice proxy record from Law Dome, Antarctica, Ver. 1, Australian Antarctic Data Centre - doi:10.26179/5bf4b43fd4f45, Accessed: 2026-06-10
Title
150 year MSA sea ice proxy record from Law Dome, Antarctica
Data Centre
Australian Antarctic Data Centre, Australia
DOI
doi:10.26179/5bf4b43fd4f45
Created Date
2011-02-23
Revision Date
2022-05-02
Expected Date of Data Release
2011-03-03
Data Version
1
Parent record
ASAC_757

Datasets and documents

    Related links

    Description

    This MSA record (1841-1995) is from a Law Dome ice core called "DSS" in East Antarctica. It was calibrated against satellite sea ice records and used to reconstruct sea ice extent prior to the satellite era. The following is taken from the abstract of the paper (Curran et al., 2003).

    The instrumental record of Antarctic sea ice in recent decades does not reveal
    a clear signature of warming despite observational evidence from coastal Antarctica. This work shows a significant correlation (P less than 0.002) between methanesulphonic acid (MSA) concentrations from a Law Dome ice core and 22 years of satellite-derived sea ice extent (SIE) for the 80 degrees E to 140 degrees E sector. Applying this instrumental calibration to longer term MSA data (1841 to 1995 A.D.) suggests that there has been a 20% decline in SIE since about 1950. The decline is not uniform, showing large cyclical variations, with periods of about 11 years, that confuse trend detection over the relatively short satellite era.

    This work was completed as part of ASAC project 757 (ASAC_757).

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    Access

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

    Temporal Coverages

    Spatial Coverages

    Latitude: -66.76972

    Longitude: 112.806946

    Data Resolution

    Temporal Resolution:
    365 Day(s)

    Science Keywords

    Additional Keywords

    • methanesulphonic acid
    • Law Dome
    • MSA

    Locations

    • CONTINENT > ANTARCTICA
    • GEOGRAPHIC REGION > POLAR

    Platforms

    • LABORATORY

    Instruments

    • CORING DEVICES

    Researchers

    • curran, mark (INVESTIGATOR,TECHNICAL CONTACT)
    • van ommen, tas (INVESTIGATOR,TECHNICAL CONTACT)
    • anderson, jason (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=law_dome_annual_msa when using these data.

    Project

      ISO Topic

      • CLIMATOLOGY/METEOROLOGY/ATMOSPHERE

      Dataset Language

      • English

      Orignating Centre

      • Australian Antarctic Division

      Dataset Progress

      • COMPLETE

      IDN Node

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

      Publications

      • Curran, M.A.J., van Ommen, T.D., Morgan, V.I., Phillips, K.L., Palmer, A.S. (2003) Ice Core Evidence for Antarctic Sea Ice Decline Since the 1950s., Science, 302, 1203-1206

      Metadata Revision History

        2011-03-01 - record created by Jason Anderson on behalf of Mark Curran. 2011-10-10 - record updated by Dave Connell to add parent DIF. 2018-11-21 - record updated by Dave Connell - basic updates. 2019-04-09 - record updated by Dave Connell for ISO compliance. 2022-05-02 - record updated by Dave Connell for ISO compliance.

      Creative Commons License