Some
Current Projects |
 Distributed
Hydrological Modeling
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My
graduate stutents and I are involved in a suite of watershed
modeling activities, mostly focused on variable source
area hydrology in shallow, interflow driven systems.
Some of our current goals are to link our hydrological
models with nutrient transport and atmospheric models.
We pride ourselves in keeping a broad perspective and
developing/using a wide range of modeling approaches.
> SMR pdf
> (S)TOPMODEL pdf
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 (M.C.
Escher) |
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Ecohydrology,
e.g., Forest Hydro-biogeochemistry, Chile
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I am near the end of a interesting project looking at biogeochemical
processes in nearly undisturbed forest watersheds, uniquely
located in southern Chile. The research team hopes that our
findings will help us understand observations from our more
impacted, but well-studied, North American and European systems.
I am involved in new similarly collaborative projects in Alaska
and New York investigating a braod swath of ecologically related
topics: nutrient dynamics, earth worm distributions, using
DNA to identify hydrological flowpaths, ...
> Hydrological Controls pdf
(fig.
5 errata)
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Mechanistic
Modeling of Soil Erosion and Surface Chemical Transport
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I
have initiated a series of small scale experiments to isolate
specific erosion processes associated with raindrop-impact,
in order to test mechanistic soil erosion models, especially
the Rose Model (named for its creator, Calvin Rose). Simultaneously,
my lab has been measuring chemical transfer between soil and
overland flow in these experiments and we have developed new
models for this process. On going work is considering additional
environmental complexities, e.g., effects of soil hydrophobicity.
> Testing the Rose Model pdf
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Water
Quality Management Practices for the NYC Watersheds - Determing
Runoff Source
Areas
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Water quality
management strategies have not kept pace with contemporary
hydrological science and one of my professional goals is
to bridge science and application to better protect the
environment. Central to this goal right now is introducing
the concept of variable source area hydrology to water quality
professionals. Our work in this area has been largely conceptual
and involved with developing good models of the types of
hydrological systems that we have in the Northeastern US.,
especiall the New York City water supply watersheds. Current
work is focusing on developing specific, web-based tools
for identifying critical management areas (web-tools should
be launched in late 2004).
>
Hydrologically Sensitive Areas,
> Evaluating Manure Spreading
Stratagies
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Groundwater-Surface
Water Interactions
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This
broad topic is central to much of my watershed-scale
research, but is the primary focus of an ongoing project
near Juneau, Alaska. I am collaborating with USGS personell
(Ed Neal) and University of Alaska Southeast scientists
(Eran Hood, Carl Byers) to understand the deceptively
complex hydrological system of the Mendenhall Valley.
The system is impacted by a glacier, continental uplift,
aggressive climate change, and residential devleopment.
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(Mendenhall
Glacier)
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Hydrology-Climate
Interactions
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This
is a broad topic that covers a wide range of my research activities.
Some examples of current specific projects are:
> Orographic Rainfall , Juneau,
AK
> Continental ET Tends, U.S.
> Hydological-Salmoniod links to the PDO
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