OCCRI Researchers

Title: Assistant Professor
Name: Andrew Rice
Institution: Portland State University
Department: Physics

Research Theme: Future forecasting of climate relies heavily on our ability to predict concentrations of atmospheric trace gases. Yet a comprehensive understanding of processes which control current levels of important radiative (e.g., carbon dioxide, methane) and non-radiative (e.g., carbon monoxide, molecular hydrogen) is far from complete. My research focuses on using small variations in naturally occurring stable isotopes to trace the sources and sinks of reactive trace gases with importance to the climate and chemistry of the Earth’s atmosphere.

Research Fields:

Atmospheric Chemistry
Data Analysis and Statistical Management

Professional Activities:

Portland State University Focus the Nation Steering Committee

Portland State University Center for Sustainable Processes and Practices Advisory Committee

NSF Portland State University Research Experience for Undergraduates Faculty Advisor

American Geophysical Union

Earth System Scholars Network

Selected Publications:

Price, H., L. Jaeglé, A. Rice, P. Quay, P. C. Novelli, R. Gammon. Global Budget of Molecular Hydrogen and its Deuterium Content: Constraints from Ground Station, Cruise, and Aircraft Observations, in press, J. Geophys. Res., submitted October 2006

Tyler, S. C., A. L. Rice, H. O. Ajie, and E. J. Dlugokencky, Measurements of CH4 mixing ratio and D/H and 13C/12C isotope ratios in atmospheric samples from continental United States. J. Geophys. Res., 112, D03303, doi:10.1029/2006JD007231, 2007

Rice, A. L., and P. D. Quay, Isotopic analysis of atmospheric formaldehyde by gas chromatography isotope ratio mass spectrometry. Anal. Chem. 78 (18), 6320-6326, 2006.

Valentine, D. L., A. Chidthaisong, A. L. Rice, K. Hinrichs, W. S. Reeburgh, and S. C. Tyler. Carbon and hydrogen isotope fractionation by moderately-thermophilic methanogens Geochem. Cosmochem. Acta, 68(7):1571-1590, Apr. 2004

McCarthy, M. C., K. A. Boering, T. Rahn, J. M. Eiler, A. L. Rice, S. C. Tyler, S. Schauffler, E. Atlas, and D. G. Johnson. The hydrogen isotope composition of water vapor entering the stratosphere inferred from high precision measurements of δD-CH4 and δD-H2. J. Geophys. Res., 109(D7), 7304, doi:10.1029/2003JD004003, 2004