The World of Wind Atlases – Wind Atlases of the World

Numerical wind atlas

The numerical wind atlas methodology consists of an analysis part and an application part, which may be summarised as follows:

Wind atlas analysis

This procedure transforms the site-specific predicted wind climate to a more or less site-independent or regional wind climate. The analysis procedure corresponds to the 'up-arrow' in the graphic to the right.

1. grid point predicted wind climate corresponds to the observed wind climate (OWC) in the model world
2. observed wind climate + site descriptions —> wind atlas data sets = regional wind climate (RWC)

Wind atlas application

This procedure transforms the regional wind climate to a site-specific predicted wind climate. The application procedure corresponds to the 'down-arrow' in the graphic to the right.

1. regional wind climate + site descriptions —> predicted wind climate (PWC)
2. predicted wind climate + power curve —> annual energy production (AEP)

Wind farm production

• predicted wind climates + WTG characteristics + wind farm layout —> wind farm wake losses
• annual energy productions + wake losses —> net annual energy production of entire wind farm

The numerical wind atlas methodology is described in more detail in the Wind Atlas for Egypt.

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