Geography 1.28.16 Geog 1112
Popular in Intro to weather and climate
verified elite notetaker
Popular in Geography
This 2 page Class Notes was uploaded by Tizhana Turner on Friday January 29, 2016. The Class Notes belongs to Geog 1112 at Georgia State University taught by Zaina Qureshi, Lashonda J. Williams in Fall 2015. Since its upload, it has received 20 views. For similar materials see Intro to weather and climate in Geography at Georgia State University.
Reviews for Geography 1.28.16
Report this Material
What is Karma?
Karma is the currency of StudySoup.
You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!
Date Created: 01/29/16
Geography 1.28.16 What’s going on with the weather today? Any clouds? What do they look likeWispy, lumpy, or sheety? Sheety Temperature Warm or Cold? Cold outside today Is it humid? No Any precipitation: not much Is it windy? Not really Low and High Pressure System Low pressure systems bring rain High pressure systems bring sunny skies < Chapter 4: Atmosphere and Surface Energy Balances> What is Energy? Energy: the capacity to do work ( move stuff around) Potential energy: stored energy (ex: going up the roller coaster <the buildup>) Kinetic energy: energy of motion ( ex: going down really fast on the roller coaster) Heat Energy Heat: flow of energy. Types of heat energy: Sensible heat: “sensed” as temperature ( being able to feel the heat) Latent heat: released or absorbed when water changes phase Methods of Heat Transfer Radiation: travels through air/space Convection: travels in a vertical movement. Conduction: moleculetomolecule transfer Advection: travels in a horizontal movement. *Review the Electromagnetic Spectrum* Shortwave energy comes from the sun Longwave comes from the Earth Energy Laws (not in your book) Stefan Boltzmann Law: everything with a temperature puts out energy. Two objects: T1 = 200K (cold) or –T2 =400K (hot) How much more energy does 2 put out vs. 1 Hotter objects put in way more energy than cold objects. Wien’s Law: wavelength at which objects put out the most energy is related to the temperature. Sun: T= 5800K (very hot) Human body: T= 290K ( much cooler) Which object peaks in visible light, and which in infrared? Hotter objects peak at shorter energy wavelengths Wien’s Law: explains why the sun glows, but earth does not. Size of energy curves explained by StefanBoltzmann Law. Transmission and Absorption Transmission: Energy passes uninterrupted trough atmosphere Absorption: Energy absorbed by the atmosphere ( or surface) Selective absorption ( ex: ozone absorbs ultraviolet) Reflection and Albedo Reflection: Energy bounces back at same wavelength Albedo: % of incoming light that is reflected Light objects: high albedo; dark objects: low albedo Average for Earth: 31% ; fresh snow: 90% Scattering Scattering: energy being sent off in multiple directions. Rayleigh scattering: small particulates. Mie scattering: large particulates. Refraction Change in speed and/or direction (bending) of light as light passes from one medium to another. Ex: mirage Rainbows Light is reflected and refracted through raindrops.
Are you sure you want to buy this material for
You're already Subscribed!
Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'