AIChE will undertake a routine upgrade of our digital infrastructure this weekend between 4pm ET Friday afternoon and 4pm ET Sunday afternoon. During this period access to all services that require login or payment will be limited.
Generated by heating of the ground surface by the sun and is suppressed by cooling of the ground surface at night. Surface heating leads to the formation of buoyant thermal bubbles from the warm ground surface on sunny afternoons. The opposite effect happens during clear nights, when the surface cooling causes the suppression of turbulence.