Responsible for
Christine Vallet-Coulomb, Professor : vallet@cerege.fr
David Au Yang, Research Engineer: auyang@cerege.fr
Tools
An CRDS (Cavity Ring-Down Spectroscopy, Picarro L2140-i) laser spectrometer
It allows very high precision measurements of δD, δ17O and δ18O on samples of’water of 2 ml and on the water vapour.
Picarro L2140-i CRDS
Applications
The compositions in δ18O, δ17O, 17O-excess and d-excess of water (precipitation, lakes, springs, etc..) and water vapour are used at CEREGE for :
- Quantification of fractionations at the subsurface-surface (including vegetation) - atmosphere interface.
- Tracing the water cycle at this same interface.
Users and employees
Christine Vallet-Coulomb, AMU Professor: vallet@cerege.fr
David Au Yang, Research Engineer: auyang@cerege.fr
Alexandre Zappelli , Design Engineer: zappelli@cerege.fr
Anne Alexandre, CNRS Research Director: alexandre@cerege.fr
Robin Havas, Post Doc CNRS: havas@cerege.fr