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The Numerical Wind Atlas - the KAMM/WAsP Method

Abstract

The method of combining the Karlsruhe Atmospheric Mesoscale Model, KAMM, with the Wind Atlas Analysis and Application Program, WAsP, to make local predictions of the wind resource is presented. It combines the advantages of meso-scale modeling - overview over a big region and use of global data bases - with the local prediction capacity of the small-scale model WAsP. Results are presented for Denmark, Ireland, Northern Portugal and Galicia, and the Faroe Islands. Wind atlas files were calculated from wind data simulated with the meso-scale model using model grids with a resolution of 2.5, 5, and 10 km. Using these wind atlas files in WAsP the local prediction of the mean wind does not depend on the grid resolution of the meso-scale model. The local predictions combining KAMM and WAsP are much better than simple interpolation of the wind simulated by KAMM. In addition an investigation was made on the dependence of wind atlas data on the size of WAsP-maps. It is recommended that a topographic map around a site should extend 10 km out from it. If there is a major roughness change like a coast line further away in a frequent wind direction this should be included at  More>>
Publication Date:
Jun 01, 2001
Product Type:
Technical Report
Report Number:
RISO-R-1252(EN)
Resource Relation:
Other Information: EFP-98; 6 tabs., 56 ill., 39 refs; PBD: Jun 2001
Subject:
17 WIND ENERGY; WIND; RESOURCE ASSESSMENT; MAPS; MATHEMATICAL MODELS; TOPOGRAPHY; DENMARK; IRELAND; PORTUGAL; FAEROE ISLANDS
OSTI ID:
20262552
Research Organizations:
Risoe National Lab., Roskilde (Denmark). Wind Energy Dept.
Country of Origin:
Denmark
Language:
English
Other Identifying Numbers:
Other: Contract ENS-1363/98-0020; ISBN 87-550-2850-0; ISBN 87-550-2909-4 (internet); TRN: DK0201225
Availability:
Available on http://www.risoe.dk/rispubl/VEA/ris-r-1252.htm; Available to ETDE participating countries only(see www.etde.org); commercial reproduction prohibited; OSTI as DE20262552
Submitting Site:
DK
Size:
60 pages
Announcement Date:

Citation Formats

Frank, H P, Rathmann, O, Mortensen, N G, and Landberg, L. The Numerical Wind Atlas - the KAMM/WAsP Method. Denmark: N. p., 2001. Web.
Frank, H P, Rathmann, O, Mortensen, N G, & Landberg, L. The Numerical Wind Atlas - the KAMM/WAsP Method. Denmark.
Frank, H P, Rathmann, O, Mortensen, N G, and Landberg, L. 2001. "The Numerical Wind Atlas - the KAMM/WAsP Method." Denmark.
@misc{etde_20262552,
title = {The Numerical Wind Atlas - the KAMM/WAsP Method}
author = {Frank, H P, Rathmann, O, Mortensen, N G, and Landberg, L}
abstractNote = {The method of combining the Karlsruhe Atmospheric Mesoscale Model, KAMM, with the Wind Atlas Analysis and Application Program, WAsP, to make local predictions of the wind resource is presented. It combines the advantages of meso-scale modeling - overview over a big region and use of global data bases - with the local prediction capacity of the small-scale model WAsP. Results are presented for Denmark, Ireland, Northern Portugal and Galicia, and the Faroe Islands. Wind atlas files were calculated from wind data simulated with the meso-scale model using model grids with a resolution of 2.5, 5, and 10 km. Using these wind atlas files in WAsP the local prediction of the mean wind does not depend on the grid resolution of the meso-scale model. The local predictions combining KAMM and WAsP are much better than simple interpolation of the wind simulated by KAMM. In addition an investigation was made on the dependence of wind atlas data on the size of WAsP-maps. It is recommended that a topographic map around a site should extend 10 km out from it. If there is a major roughness change like a coast line further away in a frequent wind direction this should be included at even greater distances, perhaps up to 20 km away.}
place = {Denmark}
year = {2001}
month = {Jun}
}