15 year Wilhelm II Land MSA and HOOH shallow ice core record from Mount Brown South (MBS)

This work presents results from a short firn core spanning 15 years collected from near Mount Brown, Wilhelm II Land, East Antarctica. Variations of methanesulphonic acid (MSA) at Mount Brown were positively correlated with sea-ice extent from the coastal region surrounding Mount Brown (60-1208 E) a...

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Bibliographic Details
Other Authors: CURRAN, MARK (hasPrincipalInvestigator), CURRAN, MARK (processor), VAN OMMEN, TAS (hasPrincipalInvestigator), VAN OMMEN, TAS (processor), Australian Antarctic Data Centre (publisher)
Format: Dataset
Language:unknown
Published: Australian Antarctic Data Centre
Subjects:
climatologyMeteorologyAtmosphere
IONS
EARTH SCIENCE
PALEOCLIMATE
ICE CORE RECORDS
SULFUR COMPOUNDS
ATMOSPHERE
ATMOSPHERIC CHEMISTRY
MSA
methanesulphonic acid
Mt Brown
Firn Core
CORING DEVICES
FIELD SURVEYS
CONTINENT &gt
ANTARCTICA
GEOGRAPHIC REGION &gt
POLAR
Antarctic
East Antarctica
Law Dome
Wilhelm II Land
Mount Brown
Antarc*
Antarctica
ice core
Sea ice
Online Access:https://researchdata.ands.org.au/15-year-wilhelm-south-mbs/701390
https://doi.org/10.26179/5c639f7d21621
https://data.aad.gov.au/metadata/records/mbs_wilhelm_msa_hooh
http://nla.gov.au/nla.party-617536
Description
Summary:This work presents results from a short firn core spanning 15 years collected from near Mount Brown, Wilhelm II Land, East Antarctica. Variations of methanesulphonic acid (MSA) at Mount Brown were positively correlated with sea-ice extent from the coastal region surrounding Mount Brown (60-1208 E) and from around the entire Antarctic coast (0-3608 E). Previous results from Law Dome identified this MSA-sea-ice relationship and proposed it as an Antarctic sea-ice proxy (Curran and others, 2003), with the strongest results found for the local Law Dome region. Our data provide supporting evidence for the Law Dome proxy (at another site in East Antarctica), but a deeper Mount Brown ice core is required to confirm the sea-ice decline suggested by Curran and others (2003). Results also indicate that this deeper record may also provide a more circum-Antarctic sea-ice proxy. This work was completed as part of ASAC project 757 (ASAC_757).

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