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Earth Science: Modeling and Measurement of Ecosystem Trace Gas Fluxes
RO#
17571
Location
Ames Research Center
Moffett Field, CA 94035-1000
Advisor Information
Name
Phone
Email
Potter, Christopher S.
(650)604-6164
cpotter@gaia.arc.nasa.gov
Research Area
Earth and Atmospheric Sciences
Keywords
Atmospheric trace constituents; Biogeochemical cycles; Environmental models;
Description
We are conducting computer modeling studies to quantify fluxes of important biogenic gases from terrestrial ecosystems and to understand the sources, sinks, and processes that control exchange with the atmosphere at several scales. Our long-term goal has been to establish a geographic perspective on trace gas fluxes and biogeochemical processes in terrestrial environments. This encompasses comparisons of measured gas fluxes from soils with predicted fluxes from ecosystem simulation models. Estimates of emission rates are being conducted for nitrous oxide, nitric oxide, carbon dioxide, methane, nonmethane hydrocarbons, and other reactive gases over a range of ecosystems representing gradients of climate, fertility, and human management. An opportunity exists for related studies in both field experiments and computer simulation of ecosystem processes. Expertise is needed in either plant/soil trace gas measurements, or computer programming and geographic information systems.
