tuuliprofiilien

Tuuliprofiilien, a Finnish term often translated as "wind profiles," refers to the vertical distribution of wind speed in the Earth's atmosphere. This distribution is not uniform; wind speed generally increases with altitude above the ground surface. This phenomenon is primarily caused by surface friction, which slows down the wind in the lowest layers of the atmosphere.

The rate at which wind speed increases with height can vary significantly depending on several factors. These include the roughness of the underlying terrain (e.g., smooth water surfaces allow for faster wind increase than rough, forested areas), atmospheric stability (stable conditions tend to lead to stronger wind shear), and the presence of weather systems like fronts or jet streams.

Understanding wind profiles is crucial in various fields. For meteorology, it helps in weather forecasting and understanding atmospheric dynamics. In aviation, wind profiles are essential for flight planning, especially during take-off and landing. The renewable energy sector, particularly wind power generation, relies heavily on accurate wind profile data to optimize the placement and design of wind turbines, as higher altitudes often offer more consistent and stronger wind resources. Specialized instruments like anemometers mounted on towers or remote sensing techniques such as SODAR and LIDAR are used to measure and model these wind profiles.