Atmospheric Science
8 questions tagged Atmospheric Science — spanning every one of the seven Ws.
Why Do Planes Leave White Trails in the Sky?
Contrails (condensation trails) form when hot, humid jet exhaust mixes with cold ambient air at high altitude, causing water vapour to condense and freeze into ice crystals.
Why Do Volcanoes Produce Lightning?
Volcanic lightning forms when ash particles collide during an eruption, transferring electrons and building up static charge that discharges as spectacular lightning bolts within the eruption plume.
Why Are Sunsets Red?
At sunset, sunlight travels through much more atmosphere than at noon, scattering away shorter blue wavelengths and allowing longer red and orange wavelengths to dominate — a more extreme version of the same Rayleigh scattering that makes the daytime sky blue.
What Is the Aurora Borealis?
The aurora borealis (northern lights) is a natural light display caused by charged particles from the Sun colliding with atmospheric gases along Earth magnetic field lines near the poles, making oxygen and nitrogen glow.
What Is Ball Lightning?
Ball lightning is a rare, unexplained atmospheric phenomenon appearing as a glowing, hovering sphere during thunderstorms.
Whose work first explained why deserts often sit in belts around 30 degrees latitude?
George Hadley’s atmospheric circulation model helped explain the subtropical high-pressure zones where many of the world’s deserts form.
What is an adiabatic lapse rate?
An adiabatic lapse rate is the rate at which air cools or warms as it rises or sinks without exchanging heat with its surroundings. It is a key idea in cloud formation and atmospheric stability.
How does a weather front create sudden changes in temperature?
A front marks the boundary between two air masses, so when it passes, the temperature, wind and humidity can change quickly.