David S Sayres
Affiliation: Harvard University
- A new cavity based absorption instrument for detection of water isotopologues in the upper troposphere and lower stratosphereDavid S Sayres
Department of Earth and Planetary Sciences, Harvard University, Cambridge, Massachusetts 02138, USA
Rev Sci Instrum 80:044102. 2009..16 ppbv in 4 s averages for H(2)O, HDO, and H(2) (18)O, respectively. At a water vapor mixing ratio of 5 ppmv the isotopologue ratio precision is 50[per thousand] and 30[per thousand] for deltaD and delta(18)O, respectively...