Experimental determination and theoretical framework of kinetic fractionation at the water vapour - ice interface at low temperature

Climate reconstruction from ice cores rely on good knowledge of equilibrium and kinetic isotopic fractionation at each step of the water cycle. One of the strongest limitations when interpreting water isotopes in remote Antarctic ice cores is the formulation of the isotopic fractionation at solid co...

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Bibliographic Details
Main Author: celiaeschst
Format: Other/Unknown Material
Language:French
Published: AFEQ english 2015
Subjects:
geo
Online Access:http://afeqeng.hypotheses.org/439
Description
Summary:Climate reconstruction from ice cores rely on good knowledge of equilibrium and kinetic isotopic fractionation at each step of the water cycle. One of the strongest limitations when interpreting water isotopes in remote Antarctic ice cores is the formulation of the isotopic fractionation at solid condensation (vapour to ice). The uncertainties associated with the coefficients for equilibrium fractionation and water vapour diffusion in air make the formulation of isotopic fractionation at soli.