LiDAR Measurements of Wind Shear Exponents and Turbulence Intensity Offshore the Northeast United States

Viselli, Anthony M.; Faessler, Nathan; Filippelli, Matthew

doi:10.1115/1.4053583

LiDAR Measurements of Wind Shear Exponents and Turbulence Intensity Offshore the Northeast United States

Journal Article · Fri Feb 18 00:00:00 EST 2022 · Journal of Offshore Mechanics and Arctic Engineering

DOI:https://doi.org/10.1115/1.4053583· OSTI ID:1843390

Viselli, Anthony M. ^[1]; Faessler, Nathan ^[2]; Filippelli, Matthew ^[3]

Univ. of Maine, Orono, ME (United States); University of Maine, Advanced Structures and Composites Center
Univ. of Maine, Orono, ME (United States)
Albany, NY (United States)

This paper presents wind speed shear exponents and turbulence intensity measurements collected from LiDARs measuring wind speeds from 40m to 200m above sea-level and provides comparisons to industry design guidelines. The high-altitude wind speed data are unique and represent some of the first measurements made offshore in this part of the country, which is actively being developed for offshore wind. The data is used to support the New England Aqua Ventus I Floating Offshore Wind Farm to be located 17km offshore the Northeast United States. Multiple LiDAR measurements were made using a DeepCLiDAR floating buoy and LiDARs located on a nearby island. Here, the measured wind speed shear exponents are compared against industry standard mesoscale model outputs and offshore design codes including the American Bureau of Shipping, American Petroleum Institute, and DNV-GL guides. Significant variation in the vertical wind speed profile occurs throughout the year which is not addressed in design standards. Additionally, turbulence intensity measurements made from the LiDAR, although not widely accepted in the scientific community, are presented and compared against industry guidelines.

Research Organization:: Univ. of Maine, Orono, ME (United States)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE)

Grant/Contract Number:: EE0006713

OSTI ID:: 1843390

Journal Information:: Journal of Offshore Mechanics and Arctic Engineering, Journal Name: Journal of Offshore Mechanics and Arctic Engineering Journal Issue: 4 Vol. 144; ISSN 0892-7219

Publisher:: ASMECopyright Statement

Country of Publication:: United States

Language:: English

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