GEOLOGY 101 Study Guide - Midterm Guide: Buoyancy, Polar Front, Pleistocene
Document Summary
Co2 concentration level in the atmosphere is increasing. Rhone glacier: early 19th century, largest in 1850, melted in 1900. Holocene climate change 10,000 years: little ice age (1300-1850 ad, medieval warm period, 8k event. Ice at max sea level at min. Marine terraces are formed during interglacial periods (creates ridges/cliffs) Colder climate now compared to 60 million years ago. System: a collection of components or attributes and the relationships between them. Our notion of a system is an abstraction and generally a simpli cation of reality. Geosci 100 - exam 2 study guide state of a system may change with time and is described by the values of important variables of interest at any particular time. * odd number of negative couplings: overall feedback is negative. * 0 or even number: overall feedback is positive. Open systems are open to inputs of mass and energy from outside the system, and they have outputs of energy and mass.
