Age model of firn core DML03C98_09

The influence of atmospheric circulation patterns on sea salt aerosol deposition in the study area of the new EPICA (European Project for Ice Coring in Antarctica) deep drilling in Dronning Maud Land (DML), Antarctica, has been investigated. Comparison of ice core records with reanalysis data showed...

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Bibliographic Details
Main Author: Fischer, Hubertus
Format: Dataset
Language:English
Published: PANGAEA 2008
Subjects:
Age
Age model
layer counting
DEPTH
ice/snow
DML03C98_09
Dronning Maud Land
Antarctica
EPICA
EPICA_DML3
European Project for Ice Coring in Antarctica
FB9809
ICEDRILL
Ice drill
Neumayer Station (WMO89002)
Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas
see comment
SPP1158
Antarc*
Antarctic
DML
ice core
Sea ice
Southern Ocean
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.686034
https://doi.org/10.1594/PANGAEA.686034
Description
Summary:The influence of atmospheric circulation patterns on sea salt aerosol deposition in the study area of the new EPICA (European Project for Ice Coring in Antarctica) deep drilling in Dronning Maud Land (DML), Antarctica, has been investigated. Comparison of ice core records with reanalysis data showed that recent sea salt concentrations are strongly influenced by the occurrence of a blocking high pressure ridge over the eastern and enhanced storm activity over the western Atlantic sector of the Southern Ocean (SO) leading to marine intrusions, thus enhanced sea salt export, into DML. These variations occur with periods of 4–5 and 12–14 yr, the prior being associated with the Antarctic Circumpolar Wave (ACW). The prevalence of these periodicities in a 2000 year ice core record from DML shows for the first time that the ACW is a prevalent feature of SO atmosphere dynamics over the last two millennia.

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