Next Article in Journal
The DEMO Quasisymmetric Stellarator
Next Article in Special Issue
A Wind Farm Electrical Systems Evaluation with EeFarm-II
Previous Article in Journal / Special Issue
Probabilistic Design of Wind Turbines
Article Menu

Export Article

Open AccessArticle
Energies 2010, 3(2), 258-276; doi:10.3390/en3020258

The WRF Model Forecast-Derived Low-Level Wind Shear Climatology over the United States Great Plains

1
Wind Science and Engineering Research Center, Texas Tech University, Lubbock, TX, USA
2
Atmospheric Science Group, Department of Geosciences, Texas Tech University, Lubbock, TX, USA
*
Author to whom correspondence should be addressed.
Received: 15 January 2010 / Accepted: 20 February 2010 / Published: 23 February 2010
(This article belongs to the Special Issue Wind Energy)
View Full-Text   |   Download PDF [898 KB, uploaded 17 March 2015]   |  

Abstract

For wind resource assessment projects, it is common practice to use a power-law relationship (U(z) ~ zα) and a fixed shear exponent (α = 1=7) to extrapolate the observed wind speed from a low measurement level to high turbine hub-heights. However, recent studies using tall-tower observations have found that the annual average shear exponents at several locations over the United States Great Plains (USGP) are significantly higher than 1=7. These findings highlight the critical need for detailed spatio-temporal characterizations of wind shear climatology over the USGP, where numerous large wind farms will be constructed in the foreseeable future. In this paper, a new generation numerical weather prediction model—the Weather Research and Forecasting (WRF) model, a fast and relatively inexpensive alternative to time-consuming and costly tall-tower projects, is utilized to determine whether it can reliably estimate the shear exponent and the magnitude of the directional shear at any arbitrary location over the USGP. Our results indicate that the WRF model qualitatively captures several low-level wind shear characteristics. However, there is definitely room for physics parameterization improvements for the WRF model to reliably represent the lower part of the atmospheric boundary layer. View Full-Text
Keywords: directional shear; low-level jet; numerical weather prediction; shear exponent directional shear; low-level jet; numerical weather prediction; shear exponent
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Storm, B.; Basu, S. The WRF Model Forecast-Derived Low-Level Wind Shear Climatology over the United States Great Plains. Energies 2010, 3, 258-276.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top