TY - GEN

T1 - Off-shore Wind Atlas of the Central Aegean Sea: A simple comparison of NCEP/NCAR RE-analysis data, QuickSCAT and ENVISAT Synthetic Aperture Radar (SAR) by use of Wind Atlas Method

A1 - Bingöl,Ferhat

A1 - Hasager,Charlotte Bay

A1 - Karagali,Ioanna

A1 - Badger,Jake

A1 - Badger,Merete

A1 - Foussekis,Dimitri

A1 - Nielsen,Morten

A1 - Topouzelis,Konstantinos

AU - Bingöl,Ferhat

AU - Hasager,Charlotte Bay

AU - Karagali,Ioanna

AU - Badger,Jake

AU - Badger,Merete

AU - Foussekis,Dimitri

AU - Nielsen,Morten

AU - Topouzelis,Konstantinos

PB - EWEA - The European Wind Energy Association

PY - 2012

Y1 - 2012

N2 - Offshore wind energy is progressing rapidly in many parts of the world including Europe. While our understanding of offshore wind is growing parallel to that, most of the offshore wind development is located in shallow or transitional waters. Deep, open sea was never preferred by developers due to high costs, but with the new developments in floating turbine design, it seems that offshore wind parks in deep waters will also be a possibility in the future. <br/>Whether on-shore or offshore, the first step of a site assessment is to estimate the wind resources. Usually well-known conventional methods are used to produce estimates of wind resources by means of at least one year data from a single or multiple points on the terrain. This criterion is dicult to satisfy in offshore locations where measurements are costly and sparse. Therefore other methods are required (e.g satellite imagery or reanalysis model results). Unfortunately all of these methods are still under development and do not provide data acceptable for bankable wind assessment reports. On the other <br/>hand, they give good indications of the geographical distribution of the wind resources and that is very useful for decision making and planning of feasibility studies and of actual project preparation. <br/>Until now, several offshore wind resources (e.g. North Sea [1], Baltic Sea [2]) have <br/>been investigated by means of ENVISAT Synthetic Aperture Radar (SAR) data. In the current study we investigate the positive and the negative aspects of using SAR data at the Central Aegean Sea and compare with two other parallel developing techniques; NCEP/NCAR re-analysis based Ocean wind Atlas and scatterometer winds QuickSCAT <br/>1. WAsP software and/or method is used in all steps of the study.

AB - Offshore wind energy is progressing rapidly in many parts of the world including Europe. While our understanding of offshore wind is growing parallel to that, most of the offshore wind development is located in shallow or transitional waters. Deep, open sea was never preferred by developers due to high costs, but with the new developments in floating turbine design, it seems that offshore wind parks in deep waters will also be a possibility in the future. <br/>Whether on-shore or offshore, the first step of a site assessment is to estimate the wind resources. Usually well-known conventional methods are used to produce estimates of wind resources by means of at least one year data from a single or multiple points on the terrain. This criterion is dicult to satisfy in offshore locations where measurements are costly and sparse. Therefore other methods are required (e.g satellite imagery or reanalysis model results). Unfortunately all of these methods are still under development and do not provide data acceptable for bankable wind assessment reports. On the other <br/>hand, they give good indications of the geographical distribution of the wind resources and that is very useful for decision making and planning of feasibility studies and of actual project preparation. <br/>Until now, several offshore wind resources (e.g. North Sea [1], Baltic Sea [2]) have <br/>been investigated by means of ENVISAT Synthetic Aperture Radar (SAR) data. In the current study we investigate the positive and the negative aspects of using SAR data at the Central Aegean Sea and compare with two other parallel developing techniques; NCEP/NCAR re-analysis based Ocean wind Atlas and scatterometer winds QuickSCAT <br/>1. WAsP software and/or method is used in all steps of the study.

BT - Proceedings of EWEA 2012 - European Wind Energy Conference & Exhibition

T2 - Proceedings of EWEA 2012 - European Wind Energy Conference & Exhibition

ER -