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Application of the wind atlas method to extremes of wind climatology

Abstract

A terrain description model is established for the Risoe site through a WA{sup s}P computation. Mean wind profiles for eight wind direction sectors are compared with the model boundary profiles. Wind data from the 72/76 m recording level of the Risoe mast are updated, including identification of missing and erroneous data. The wind atlas procedure (``the double extrapolation method``) is applied to extrapolate Risoe data to open-water conditions 10 m above mean sea level. Three different extreme value distributions are applied to the extrapolated storm data - two of which are based on the annual maximum (AM) method, and one on the peak-overthreshold (POT) method. T-year estimates including standard error estimates are provided. Finally, a verification is performed by comparing extrapolated storm data with corresponding measured wind data form the Dan and Gorm fields in the North Sea. A high correlation is found for severe storms from the west. A significantly lower correlation is found for moderate and easterly storms. (au) (29 tabs., 29 ills., 59 refs.)
Authors:
Publication Date:
Jan 01, 1994
Product Type:
Technical Report
Report Number:
RISO-R-722(EN)
Reference Number:
SCA: 170604; 170100; PA: DK-94:001128; EDB-94:062543; NTS-94:013482; SN: 94001180425
Resource Relation:
Other Information: PBD: Jan 1994
Subject:
17 WIND ENERGY; COMPLEX TERRAIN; CALCULATION METHODS; DENMARK; STORMS; WIND; VELOCITY; BOUNDARY CONDITIONS; CLIMATES; EXPERIMENTAL DATA; EXTRAPOLATION; METEOROLOGY; RISOE NATIONAL LABORATORY; ROUGHNESS; SITE CHARACTERIZATION; STATISTICAL DATA; TOPOGRAPHY; W CODES; 170604; 170100; SITE CHARACTERISTICS; RESOURCES AND AVAILABILITY (CLIMATOLOGY)
OSTI ID:
10141224
Research Organizations:
Risoe National Lab., Roskilde (Denmark). Meteorology and Wind Energy
Country of Origin:
Denmark
Language:
English
Other Identifying Numbers:
Other: ON: DE94756756; ISBN 87-550-1438-0; TRN: DK9401128
Availability:
OSTI; NTIS; Also available from Risoe Library, P.O. Box 49, DK-4000 Roskilde, Denmark
Submitting Site:
DK
Size:
174 p.
Announcement Date:
Jul 05, 2005

Citation Formats

Abild, J. Application of the wind atlas method to extremes of wind climatology. Denmark: N. p., 1994. Web.
Abild, J. Application of the wind atlas method to extremes of wind climatology. Denmark.
Abild, J. 1994. "Application of the wind atlas method to extremes of wind climatology." Denmark.
@misc{etde_10141224,
title = {Application of the wind atlas method to extremes of wind climatology}
author = {Abild, J}
abstractNote = {A terrain description model is established for the Risoe site through a WA{sup s}P computation. Mean wind profiles for eight wind direction sectors are compared with the model boundary profiles. Wind data from the 72/76 m recording level of the Risoe mast are updated, including identification of missing and erroneous data. The wind atlas procedure (``the double extrapolation method``) is applied to extrapolate Risoe data to open-water conditions 10 m above mean sea level. Three different extreme value distributions are applied to the extrapolated storm data - two of which are based on the annual maximum (AM) method, and one on the peak-overthreshold (POT) method. T-year estimates including standard error estimates are provided. Finally, a verification is performed by comparing extrapolated storm data with corresponding measured wind data form the Dan and Gorm fields in the North Sea. A high correlation is found for severe storms from the west. A significantly lower correlation is found for moderate and easterly storms. (au) (29 tabs., 29 ills., 59 refs.)}
place = {Denmark}
year = {1994}
month = {Jan}
}