EOSC 114 Lecture Notes - Lecture 1: Return Period, Natural Disaster, Relate
Document Summary
Module 1: is the earth a fragile system: explain what density is and how it relates to stratification. Higher density sinks to bottom (in presence of gravity) When materials segregate because of their density (increasing as you go down) layers are formed and materials are stratified: explain why disaster scales are based on the order-of-magnitude concept and interpret graphs with logarithmic scales. Used to indicate intensity, (cid:498)power(cid:499) is used so that it can be clearer to interpret. We can also extend graph easier and be able to predict next point because using and distinguish differences the order-of-magnitude method becomes more linear: relate natural-disaster risk and intensity to frequency, return period, and consequences (costs). Natural disasters that are more intense occur less frequently. Is the average number of years between disaster events of. (cid:1844)(cid:1842)(cid:1839) = (cid:4666)(cid:3047)(cid:3040)(cid:3032) (cid:3046)(cid:3043)(cid:3028)(cid:3041) (cid:3042)(cid:3033) (cid:3031)(cid:3028)(cid:3047)(cid:3028) (cid:3045)(cid:3032)(cid:3030)(cid:3042)(cid:3045)(cid:3031)(cid:4667) (cid:4666)(cid:3041)(cid:3048)(cid:3040)(cid:3029)(cid:3032)(cid:3045) (cid:3042)(cid:3033) (cid:3030)(cid:3028)(cid:3046)(cid:3032)(cid:3046) (cid:3042)(cid:3033) (cid:3040)(cid:3028)(cid:3034)(cid:3041)(cid:3047)(cid:3048)(cid:3031)(cid:3032) (cid:4667)
