NDLI: Directional calibrated wind and wave reanalysis databases using instrumental data for optimal design of off-shore wind farms

Content Provider	IEEE Xplore Digital Library
Author	Espejo, A. Minguez, R. Tomas, A. Menendez, M. Mendez, F.J. Losada, I.J.
Copyright Year	2011
Description	Author affiliation: Environmental Hydraulics Institute “IH Cantabria”, Universidad de Cantabria, Avenida de los Castros s/n, 39005 Santander, Spain (Espejo, A.; Minguez, R.; Tomas, A.; Menendez, M.; Mendez, F.J.; Losada, I.J.)
Abstract	An important part of the future expansion of wind energy utilisation will come from offshore sites. The economic viability of offshore wind farms depends on the favourable wind conditions compared to sites on land, compensating the additional installation and maintenance costs. For project planning and sitting, especially for large projects, a reliable prediction of the wind resource and wave climate is therefore crucial. In this work, two new wind and wave reanalysis data bases (W2RDB) developed by the University of Cantabria are presented. They constitute a powerful tool for the design of offshore wind farms, offering important advantages for the statistical characterization of wind sites (continuous time series, good spatial coverage, constant time span, homogeneous forcing, long time series). However, W2RDB are not quantitatively perfect and corrections using instrumental observations must be addressed before they are used, this process is called calibration. The calibration is especially relevant near the coast and in areas where the orography is complex, since in these places the inaccuracy of W2RDB is evident mainly due to the insufficient forcing resolution. The quantitative differences between numerical and instrumental data suggest that different corrections should be applied depending on the mean direction of wind and waves, respectively. This work focuses on the calibration performed based on a nonlinear regression problem where the corresponding correction parameters vary smoothly along the possible mean wave directions by means of cubic splines. The correction of wind speed and significant wave height is performed using instrumental data: i) buoy records and/or ii) satellite data.
Starting Page	1
Ending Page	9
File Size	6387420
Page Count	9
File Format	PDF
ISBN	9781457700866
e-ISBN	9781457700880
DOI	10.1109/Oceans-Spain.2011.6003592
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-06
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Databases Atmospheric modeling Wind Instruments Satellites Calibration
Content Type	Text
Resource Type	Article

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