The following websites can be used to find more information on aircraft, noise and airspace:
Department for Transport (DfT)
As a designated airport operator, the Department for Transport (DfT) has direct control over noise policy at London Gatwick and has established over many years a range of operational controls and statutory objectives to manage and where possible reduce noise.
Link: https://www.gov.uk/transport/aviation
Civil Aviation Authority (CAA)
The Civil Aviation Authority (CAA) is the statutory corporation which oversees and regulates all aspects of civil aviation in the United Kingdom. It is a public corporation established by Parliament in 1972 as an independent specialist aviation regulator. One of its four environmental goals is to contribute to a cleaner and quieter aviation industry.
Website: https://www.caa.co.uk/home/
CAA Airspace Change Portal: https://airspacechange.caa.co.uk/
National Air Traffic Services (NATS)
National Air Traffic Services (NATS) provide air traffic services throughout the UK and are responsible for controlling aircraft approaching and departing London Gatwick, as well as aircraft overflying the surrounding area. Which is some of the busiest pieces of airspace in the world.
NATS also provide local air traffic services at London Gatwick, this includes the control of aircraft on the runways and taxiways. Controlling aircraft that have just landed from the runway to the gate, and those taking off from the gate to the runway.
Website: https://www.nats.aero/
Airspace explorer: https://www.nats.aero/ae-home/
Airspace replay: https://www.nats.aero/news/videos-imagery/airspace-plus-videos/