GGR112H5 Lecture Notes - Lecture 1: Dynamic Equilibrium, Hydrosphere, Geosphere
Document Summary
Ggr112 lecture 2 essentials of physical. Gis systems are digital representations of the world combine spatial (where it is) and attribute (what it is) data. Databases can have both physical or cultural features. Layers can be added to create combined overlays. Active remote sensing: instrument sends out its own energy, which is relected back to it, radar, lidar. Passive remote sensing: instruments gets relected solar energy, infrared, thermal energy. Ash is erupted from volcano into atmosphere. It is spread out, and has relected energy back into space. A method, not a body of knowledge. Special analysis is key to geography method. Named after charles keeling, used to determine changes in atmosphere. Real world observations, building ideas and theories. Paper is published about indings and a new scientiic theory is developed. Multidisciplinary and inter-disciplinary: physical geography, synthesis of physical and human, human geography.
