GEOG 3 Lecture Notes - Lecture 1: Lithosphere, Human Geography, Hydrosphere
Document Summary
What is geography: epidemiology of infectious diseases, african agriculture, spatial neuroscience, plant-soil-atmosphere interactions, climate change, geography is the study of the earth (geo = earth, geographers study the lands, features, inhabitants, and phenomena of the earth. Human geography focuses on the built environment. Physical geography focuses on the natural environment. Geographers also study the interaction of humans with the natural environment. The earth system a set of interacting shells or spheres, some extend over the entire globe and others cover it partially. Lithosphere: outer-most part of the solid earth, litho = rock. Atmosphere: thin layer of gases surrounding the earth"s surface. E. g. , oceans, lakes, rivers, groundwater, water vapor. E. g. , glaciers, sea ice, snow cover, permafrost. Geog 3a focuses on the atmosphere and hydrosphere (the oceans) Both the ocean and atmosphere are uids that cover the entire earth (well 70% for the ocean. ) But which is heavier: the ocean is hundreds of times more massive than the atmosphere.
