GEO 1111 Lecture Notes - Lecture 21: Cloud Condensation Nuclei, Cloud Chamber, Evapotranspiration

• School: University of Ottawa
• Department: Geology
• Course: GEO 1111
• Professor: Robert Jack Cornett

Document Summary

Lec 21 climat emodesl: clouds form when water vapour (gas) condenses to form liquid (cloud) droplets (~20 um diameter, pa(cid:396)ticles a(cid:396)e called cloud co(cid:374)de(cid:374)satio(cid:374) (cid:374)uclei cha(cid:396)ged pa(cid:396)ticles (cid:894)cos(cid:373)ic (cid:396)a(cid:455)s etc(cid:895) io(cid:374)ize ato(cid:373)s . Ions that are formed act as condensation nuclei: u can simulate cloud formation in a cloud chamber (wilson chamber) with a saturated alcohol atmosphere. Clay formation by hydrolysis: plate tectonics slowly moves around lithosphere & creates oceanic crust. It also produces dramatic changes in earthquakes, tsumanis and volcanoes: water is the universal solvent and chemical weathering agent. It has high heat capacity, high latent heat a(cid:374)d (cid:862)u(cid:374)i(cid:395)ue(cid:863) physical chemical properties: gravity is a key geologic force! It planes out mountains, streams, tectonic featu(cid:396)es sometimes with devastating consequences: there are large volumes in many big reservoirs with long slow responses to external forces, mass balances, energy balances & force balances are important.