Indiana University Bloomington


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Did you know there are already over 5 GW of installed capacity
in offshore wind farms?

An integrated approach to offshore wind energy assessment: Great Lakes 3D Wind Experiment.
Project leader: R. J. Barthelmie

This project was funded through Funding Opportunity Announcement Number DE-F0A-000414, U.S. Offshore Wind: Removing Market Barriers

Project summary

Offshore wind energy developments require uniquely accurate assessments of wind and turbulence characteristics away from the surface in the marine boundary-layer. This project is a public-private collaborative between academia and industry to effectively address offshore resource assessment and design condition needs.

We will integrate ground-based remote sensing measurements (including multiple vertical and scanning lidar systems), observations from an Unmanned Aerial Vehicle (UAV) and a tethered balloon with in situ measurements from meteorological towers and satellite-borne radiometers to define horizontal/vertical gradients of both wind speed and turbulence at high temporal and spatial resolution in the coastal/offshore areas of Lake Erie, in an area that has been earmarked for offshore wind farm development.

The datasets to be collected within the project will be (i) linked to existing resource estimates, (ii) used in a closure (instrument inter-comparison) analysis based in part on the in situ observations, (iii) used to evaluate meteorological and wind farm models (iv) analyzed to characterize meteorological conditions in the coastal Great Lakes region where highly resolved observations are currently lacking, and (v) used to develop best-practice strategies and documentation for each measurement type focused on its application to wind energy.

launching a tethersonde
launching an Unmanned Aerial Vehicle (UAV)