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 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.

Metadata Access
Creator Fischer, Hubertus
Publisher PANGAEA - Data Publisher for Earth & Environmental Science
Publication Year 2008
Rights Creative Commons Attribution 3.0 Unported (CC-BY)
Language English
Resource Type Dataset
Format text/tab-separated-values
Discipline Earth System Research
Spatial Coverage (74S,2 E)
Temporal Point 1998-01-02T11:59:59Z