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I
am a broadly trained geographer with research interests spanning
physical and human geography. Theoretically, I am interested
in scale theory and how it integrates across geographic subdisciplines.
My graduate students and I have studied a wide range of topics,
but if any one theme runs through them all it is the agency
of non-human organisms and the organism-environment interaction.
Organisms influence their biogeographic distributions, their
climate, as well as the human socioecological systems that emerge
around them. Photo taken on Great Barrier Reef. |
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My
research in biogeomorphology has been conducted in riparian
forests and barrier island dunes of the southeastern US. A biogeomorphic
perspective facilitates visibility of the recursivity of the
organism-environment interaction. A central question I have
is how the coupling of geomorphic processes and vegetation dynamics
varies geographically, and what this coupling implies for geographic
patterns in diversity, stability, and the ecosystem functions
upon which human depend. (Sapelo Island, Georgia (left) and
tupelo trees along the Apalachicola River, Florida (right) |
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I
also conduct research that describes how cities and particulate
matter (aerosols) modify local and regional patterns of lightning
and precipitation on climatological scales. This GIS-based research
focuses on Atlanta, Georgia. Visualization and data mining are
large methodological components. My goal is to put a more geographical,
scalar perspective on ideas about the urban modification of
convective phenomena. Weekend-weekday contrasts in cloud-to-ground
lightning (left) and areas of elevated flash activity in Atlanta,
Georgia (right). |
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