Gy101 week 9 notes
Gy101 week 9 notes GY 101
Popular in Atmospheric Processes & Patterns
verified elite notetaker
Popular in Geography
One Day of Notes
verified elite notetaker
This 2 page Class Notes was uploaded by Elle Notetaker on Tuesday March 29, 2016. The Class Notes belongs to GY 101 at University of Alabama - Tuscaloosa taught by Eben Broadbent in Fall 2016. Since its upload, it has received 34 views. For similar materials see Atmospheric Processes & Patterns in Geography at University of Alabama - Tuscaloosa.
Reviews for Gy101 week 9 notes
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: 03/29/16
Gy101 Notes from 3/28 Scale Global scale: atmospheric features are maintained over large time periods and cover huge areas Synoptic scale: high and low pressure patterns over hundreds of thousands of square kilometers. These cover large portions of continents. Mesoscale: patterns from a few square kilometers to hundreds. Microscale: very small areas, like ripples in the water or sand at a beach. Here’s a video we watched in class: https://www.youtube.com/watch?v=Ye45DGkqUkE Zonal winds move either EastWest or WestEast while Meridional winds move NorthSouth or SouthNorth. Single Cell Model George Hadley created the singlecell model to explain air movements across the Earth, showing the general movement of the atmosphere. Winds at the equator are mostly meridional, driven by heating by the Sun. Because of the Coriolis Effect, most surface winds are Easterly (blowing from the East). Hadley’s model was essential to figuring out the effects of a thermally direct circulation, or one run by heating, like the Singlecell model. ThreeCell Model William Ferrel (not the actor, this guy lived in the 1800s) came up with the 3 cell model, separating each hemisphere into 3 different cells. Hadley cells circulate air between the tropics and subtropics, and are largely driven by the Sun’s energy, which creates an area of low pressure called the equatorial low, or the Intertropical Convergence Zone (ITCZ). Air goes up in this area, not sideways, so there are no winds for ships to rely on. This area without sideways winds is called the doldrums, meaning slow or sluggish. At about 2030 degrees latitude, the Hadley cell sinks toward the surface to make subtropical highs, resulting in deserts. NorthEast trade winds in the Northern Hemisphere and SouthEast trade winds in the Southern Hemisphere are deflected to the right and west. The hadley cells are strongest in the winter, when the temperature gradient is the biggest. Ferrel cells circulate the air in the middle latitudes and the Coriolis Effect has a big impact on these. They circulate the air between the subtropical highs and subpolar lows. Polar cells circulate air at the poles. Air moves between the polar highs to the supbolar lows, run by thermally directed circulations made by the serious coldness at the poles. Semipermanent Pressure Cells Semipermanent Pressure cells stick around and help promote desert conditions with subtropical highs in certain latitudes. Here’s another video we watched in class: https://www.youtube.com/watch?v=MNQ9z_EbJc NOTE: The semipermantent Pressure Cells area does not have all of the information that was on the slide because I was unable to catch that. I would suggest looking at the powerpoints on Blackboard.
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'