GEOG 101 1st Edition Lecture 9Outline of Last Lecture I. Earth’s Energy BudgetA. Key TermsII. NotesOutline of Current Lecture I. Global Atmosphere Circulation1. Convective uplif2. Earth’s RotationII. Wind Curve1. The Coriolis Effect2. The Friction ForceA. Spiraling windsB. The 3 Cell ModelLectureI. Global Atmosphere Circulation-Conceptual models simplify reality to make it more easily understandable1. Convective uplif is the underlying process that drives global circulation.2. Earth’s Rotation causes the troposphere to form three circulation cells per hemisphere.-You can expect high/low pressure in specific latitudinal bands.-The pressure bands are about 5 degrees latitude wide.II. Wind Curve: Winds curve because of two forces. Surface wind speed increases as pressure gradients decrease.1. The Coriolis Effect is produced by Earth’s rotation. It appears to curve.2. The Friction Force slows surface winds, causing them to curve.-Northern hemisphere: clockwise around highs, counterclockwise around lows. -Southern hemisphere: opposite of Northern hemisphere. A. Spiraling winds exist around high and low pressure cells. The spiraling winds around pressure cells creates zonal winds. The zonal bands are between the pressure bands. B. The 3 Cell Model is a simplification because 1. The location of pressure bands change.These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.2. The pressure bands are spatially patchy. -Air masses of different characteristic temperatures are separated by jet streams-The presence of surface water affects energy balance on local to global scales.-The pressure and wind bands are patchy because the 3 cell model leaves out land/water heating