Isotopic composition of water vapor at Dome C, East Antarctica

The oldest ice core records are obtained on the East Antarctic plateau. The composition in stable isotopes of water (δ18O, δD, δ17O) permits to reconstruct the past climatic conditions over the ice sheet and also at the evaporation source. Paleothermometer accuracy relies on good knowledge of proces...

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Bibliographic Details
Main Author: celiaeschst
Format: Other/Unknown Material
Language:French
Published: AFEQ english 2015
Subjects:
geo
envir
Antarctic
East Antarctica
Antarc*
Antarctica
ice core
Ice Sheet
Online Access:http://afeqeng.hypotheses.org/353
Description
Summary:The oldest ice core records are obtained on the East Antarctic plateau. The composition in stable isotopes of water (δ18O, δD, δ17O) permits to reconstruct the past climatic conditions over the ice sheet and also at the evaporation source. Paleothermometer accuracy relies on good knowledge of processes affecting the isotopic composition of surface snow in Polar Regions. Both simple models such as Rayleigh distillation and global atmospheric models with isotopes provide good prediction of prec.

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