Convection
Videos
Convection is the transfer of heat through the physical movement of fluids, where warmer, less-dense material rises and cooler, denser material sinks.
Thermal image of a newly lit Ghillie kettle. The plume of hot air resulting from the convection current is visible.
Painting of William Prout
Fireplace, with grate and chimney
This color schlieren image reveals thermal convection originating from heat conduction from a human hand (in silhouette) to the surrounding still atmosphere, initially by diffusion from the hand to the surrounding air, and subsequently also as advection as the heat causes the air to start to move upwards.
Atmospheric circulation
Videos
Atmospheric circulation is the large-scale movement of air and together with ocean circulation is the means by which thermal energy is redistributed on the surface of Earth. Earth's atmospheric circul
The ITCZ's band of clouds over the Eastern Pacific and the Americas as seen from space