This lecture describes how pollutants mix in the atmosphere. Three cases are considered: confined mixing, unconfined mixing, and unconfined mixing with wind. In a confined volume, the concentration of pollutant in the air depends on the volume and the mass of the air present in the volume. Unconfined mixing is also known as diffusion, in which the pollutant disperses through the air from the source over time. When wind is considered, the pollutant disperses from the source in the direction of the wind. The change in temperature with height in the atmosphere is also discussed.
This course explores the physical processes that control Earth's atmosphere, ocean, and climate. Quantitative methods for constructing mass and energy budgets. Topics include clouds, rain, severe storms, regional climate, the ozone layer, air pollution, ocean currents and productivity, the seasons, El Niño, the history of Earth's climate, global warming, energy, and water resources.
As one of the world's great universities, Yale traces its roots back to the early 1640s when colonial clergyman sought to establish a school in order to continue the tradition of European education within the Americas. Yale has now grown to educate over 11,000 students from over 100 countries on a 310-acre campus in New Haven, Connecticut. Within the school's 260 buildings are over 2,000 undergraduate programs in 65 departments taught by a distinguished faculty. As Academic Earth's first partner school, Yale has been a leader within the space of OpenCourseWare by consistently delivering on its esteemed mission to expand access to educational materials for all who wish to learn.