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The Ecosystem Dynamics branch
collects ecological data and conducts experimental research on
the ecosystem processes of the Great Lakes, the largest fresh water system in the world. The
Great Lakes ecosystem is dynamic, constantly changing in response to its surroundings. These changes
have been accelerated by human-generated factors, such as chemical pollution, invasive species and
climate change. Our scientists are exploring how and why these changes are affecting the Great
Lakes ecosystem and its health. To answer these questions, Ecosystem Dynamics research, conducted
on both a short and long term basis, examines the structure and function of the Great Lakes
ecosystem, including the interaction of the ecosystem’s biological, chemical and physical components.
The Integrated Physical and Ecological
Modeling and Forecasting (IPEMF) branch conducts research
to predict the effects of physical, biological, and chemical changes on the Great Lakes system,
including those changes generated by humans. To make these predictions, models are developed based
on known environmental processes combined with data gathered from field observations on characteristics
of the lakes and their surroundings. The mathematical relationships represented in these models are
studied to forecast how the Great Lakes environment will change based on different situations. The models
our scientists produce help us understand the processes that connect changes in the atmosphere,
freshwater systems and oceans, space, land surface, ice systems with ecosystems, organisms and humans.
GLERL’s Observing Systems and
Advanced Technology (OSAT) branch develops
and operates technology for scientific observations of the biological, chemical and physical
components of the Great Lakes ecosystem. In addition, OSAT provides the real-time and
historical data necessary to increase the reliability of Great Lakes forecasting on conditions, such
as hypoxia1 and harmful algal blooms. An important role of OSAT is providing the support
for research conducted from GLERL’s two other science branches, Ecosystem Dynamics
and Integrated Physical and Ecological Modeling and Forecasting. Through the development
of cutting-edge instrumentation and observing and remote sensing technologies, our OSAT
scientists acquire the data and develop information needed to improve our understanding of the
Great Lakes ecosystem and support decision-making for improved resource management.
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