Lecture
This lecture covers the global water cycle, including fluxes and reservoirs, regional water cycles, latitude variations of precipitation minus evapotranspiration, wet and dry deposition ion inputs, and the composition of wet precipitation. It also discusses the practical consequences of steel corrosion due to atmospheric inputs, particles and aerosols in the atmosphere, and the distinction between natural and anthropogenic inputs. The instructor emphasizes the importance of understanding the water cycle's biogeochemistry, including the variability in net precipitation, wet deposition composition, and the impact of atmospheric inputs on different regions.