HOxotope Total Water Isotopologues Instrument Performance and Results from TC4
Abstract
We present measurements of total water isotopologues (condensed and vapor phases) from the upper troposphere and lower stratosphere that were obtained by the HOx total water isotopologues instrument (HOxotope) onboard the NASA WB-57 aircraft during the TC4 field campaign. Measurements of the relative abundance of HDO and H2O serve as a sensitive indicator of the convective history of an airmass. The instrument's performance measuring water vapor is evaluated by intercomparison with the Harvard Water Vapor instrument and the condensed phase performance is evaluated by intercomparison with University of Colorado's closed-path laser hygrometer (CLH). Additionally, isotopologue measurements by Hoxotope and ICOS are used to quantitatively constrain parameters of cirrus cloud formation during TC4.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2008
- Bibcode:
- 2008AGUFM.A31C0113O
- Keywords:
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- 0320 Cloud physics and chemistry