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Can we use water isotopologues to determine Age of Air?

Donal Murtagh(1), Claudio Sanchez(2) and Jo Urban(2)

(1) Chalmers tekniska högskola, , Göteborg, Sweden
(2) Chalmers tekniska högskola, , Göteborg, Sweden

Abstract

This paper will investigate the possibility of using the ratio between water vapour isotopologues in the stratosphere to determine the length of time a parcel has been in the stratosphere. Initial modelling studies seem to show a robust relationship between the delta-D value and the age of air in the model. We have used this to obtain preliminary distribution from Odin measurements of delta-D comparing this to results from MIPAS.

 

Workshop presentation