- Noise Basics
- Basics of Sound
- What models and metrics are used to measure Community Noise Exposure?
- What can I learn about Sound Perception and Hearing?
- What has been done to reduce Aircraft Noise?
- What are the Federal Aviation Regulations that deal with Aircraft Noise?
- How does Weather affect Aviation Operations?
Another impact that wind direction and speed can have on aircraft noise is caused by the nature of noise itself. Noise (sound) travels through the air in a wave form much like ripples in a pond. With each sound event, circular waves move out from the source (center) in all directions. Just how much sound reaches a particular place on the ground depends on the speed and direction of the wind. It can also depend on local variations in temperature such as relative humidity and barometric pressure. Because the weather changes during the day, day-to-day, and season-to-season, the level of sound that residents experience also changes. Unfortunately, weather is one of the greatest factors that affect aviation noise but it is also the factor over which we have the least control.
For definitions of words used in this section go to the NoiseQuest Glossary of Terms.
Photo Credit: Penn State University PARTNER Low Frequency Noise Team