Analysis of Wind Direction and Speed Measurements in Arid Region - A Site Evaluation Using Data with Low Temporal Resolution

In arid regions, rich in solar irradiance and with dry climate, soiling and abrasion effects on solar material surfaces are most likely. Furthermore they are induced and strongly affected by the present climatic factors, especially wind direction and speed. The paper analyzes high resolution measured wind data, direction and speed, and possibilities how meaningful low temporal resolution data can be generated to evaluate effects of soiling and abrasion for PV modules.