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Lawrence et al. 2004

Lawrence, J.R., Gedzelman, S.D., Dexheimer, D., Cho, H., Carrie, G.D., Gasparini, R., Anderson, C.R., Bowman, K.P. and Biggerstaff, M.I. (2004). Stable isotopic composition of water vapor in the tropics. Journal of Geophysical Research 109: doi: 10.1029/2003JD004046. issn: 0148-0227.

Water vapor samples collected during tropical field experiments at Puerto Escondido, Mexico, near Kwajalein (KWAJEX), and near Key West, Florida (CAMEX 4), were analyzed for their stable isotope contents, 1H218O:1H216O and 2H1H16O:1H216O. Highest δ18O values approached isotopic equilibrium with seawater during quiescent weather or in regions of isolated or disorganized convection. Lowest δ18O values occurred in or downwind from regions of organized mesoscale weather disturbances and ranged as low as 15? below isotopic equilibrium with seawater. The mean δ18O value of vapor over the sea surface therefore decreases as storm activity and organization increases.

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	Abstract

Keywords
Atmospheric Composition and Structure, Troposphere—constituent transport and chemistry, Geochemistry, Isotopic composition/chemistry, Global Change, Climate dynamics, Meteorology and Atmospheric Dynamics, Tropical meteorology, Meteorology and Atmospheric Dynamics, Paleoclimatology, isotopes, water vapor, tropics

Journal
Journal of Geophysical Research
http://www.agu.org/journals/jb/

Publisher
American Geophysical Union
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