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Global Wind Paerns Winds That Blow Steadily from ______Direconsspecific

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Global Wind Paerns Winds That Blow Steadily from ______Direconsspecific Global Winds Global Wind Paerns Winds that blow steadily from ___________________ direconsspecific over ____________ distances.long Created by the _________________ _____________________unequal heating of Earth’s surface. Result of Sun striking the surface at ___________ angleshigher near the equator and at much ___________ angles nearlower the poles. Jan 26­2:45 PM Jan 26­2:45 PM Wind Belts Wind Belts troposphere Global winds would simply flow directly from the poles to the Giant ___________________ currents in the __________________convection equator creang one large convecon cell in each hemisphere: Warm air _____________ at equator and cold air _________rises sinks at the poles Creates __________ pressure at equator and ___________low high pressure at poles Surface winds blow from __________ to _________ pressure areashigh low Jan 26­2:45 PM Jan 26­2:45 PM Wind Belts Wind Belts However, the Earth is not __________________, it _____________stationary rotates Smaller convecon cells: ______________ cell:Hadley 0 Earth’s ________________ is responsible for breaking the rotation Air rising at the ________________ and sinking at ________equator 30 latude convecon cells into smaller versions known as __________ _________wind belts Rising air known as the ___________________ _________Equatorial Low Sinking air known as the __________________ _________Subtropical High Jan 26­2:45 PM Jan 26­2:45 PM 1 Wind Belts 600 N Smaller convecon cells: ______________ cell:Ferrel 0 30 N 0 0 Air sinking at ______latude and rising at ______ latude30 60 Subtropical High 00 Sinking air known as the __________________ _________ Rising air known as the ___________________ _________Subpolar Low 300 S 600 S Jan 26­2:45 PM Jan 26­2:45 PM Wind Belts 600 N Smaller convecon cells: ______________ cell:Polar 0 30 N 0 0 Air rising at ______ latude and sinking at ______ latude60 90 Rising air known as the ___________________ _________Subpolar Low 00 Sinking air known as the __________________ _________Polar High 300 S 600 S Jan 26­2:45 PM Jan 26­2:45 PM Wind Belts 0 60 N The Earth’s rotaon also causes the winds within each belt to _____________ through a process called thecurve 300 N _____________________ _________________Coriolis Effect 00 300 S 600 S Jan 26­2:45 PM Jan 26­2:45 PM 2 Coriolis Effect Coriolis Effect Earth rotates from the _____________ to the ______________West East Obeying Newton’s first law of moon (the Law of Intera) : (This includes objects on or near its surface) An air mass aempts to maintain the speed of its point of origin Earth’s surface has different rates of ______________ at differentrotation _______________ _____ ______________ away _________________latitudes If moving _________________ from the equator, it will eventually be ___________________ at the equatorfaster moving ________________ than the land surface below it.faster toward ___________________ at the polesslower If moving _________________ the equator, it will eventually be moving ________________ than the land surface below it.slower Jan 26­2:45 PM Jan 26­2:45 PM Coriolis Effect H L 600 N The direcon of the curve can be simplified as follows: slow >>> right 0 Winds curve to the ________________ (from their ____________point H 30 N _____ _____________) in the ___________________ Hemisphereof origin Northern L FAST >>>>>>> 00 Winds curve to the ________________ (from their ____________left point _____ _____________) in the ___________________ Hemisphereof origin Southern H 300 S L 600 S H Jan 26­2:45 PM Jan 26­2:45 PM ESRT (Page 14) Global Wind Belts Trade Winds (“______________”)Trades Within the ________________ cell between the latudes of Hadley 0 0 ____ and _____ (or between the ________________ ______0 30 Equatoral Low and the ______________________ _________)Subtropical High Jan 26­2:45 PM Jan 26­2:45 PM 3 Global Wind Belts Global Wind Belts Trade Winds Trade Winds The Coriolis effect causes the winds in the Northern Hemisphere All winds are named aer their ____________ _____ ___________.point of origin to turn toward the _______________ and the winds in the right Results in winds called the _____________________ ____________ Southern Hemisphere to turn toward the ________________.left in the Northern Hemisphere and the ________________________ _____________ in the Southern Hemisphere Jan 26­2:45 PM Jan 26­2:45 PM ESRT (Page 14) Global Wind Belts Trade Winds All winds are named aer their ____________ _____ ___________.point of origin Results in winds called the _____________________ ____________Northeast Trades in the Northern Hemisphere and the ________________________Southeast _____________ in the Southern HemisphereTrades Jan 26­2:45 PM Jan 26­2:45 PM Global Wind Belts Prevailing Westerlies (“____________________”)Westerlies Ferrel NE Trades Within the ________________ cell between the latudes of 0 0 ____ and _____ (or between the _________________ _______30 60 Subtropical High SE Trades and the ________________ _______)Subpolar Low Major ___________________ in our weather paernsinfluence Jan 26­2:45 PM Jan 26­2:45 PM 4 Global Wind Belts Global Wind Belts Prevailing Westerlies Prevailing Westerlies The Coriolis effect causes the winds in the Northern Hemisphere Results in winds coming from the ______________________ to turn toward the _______________ and the winds in the right in the Northern Hemisphere and from the _____________________ Southern Hemisphere to turn toward the ________________.left in the Southern Hemisphere Jan 26­2:45 PM Jan 26­2:45 PM ESRT (Page 14) Global Wind Belts Prevailing Westerlies Results in winds coming from the ______________________ Southwest in the Northern Hemisphere and from the _____________________Northwest in the Southern Hemisphere Jan 26­2:45 PM Jan 26­2:45 PM Global Wind Belts Westerlies Polar Easterlies (“____________________”)Easterlies Within the ________________ cell between the latudes of Polar 0 0 ____ and _____ (or between the _________________ _______60 90 Subpolar Low and the ________________ ________)Polar High Westerlies Jan 26­2:45 PM Jan 26­2:45 PM 5 Global Wind Belts Global Wind Belts Polar Easterlies Polar Easterlies The Coriolis effect causes the winds in the Northern Hemisphere Results in winds coming from the ______________________ to turn toward the _______________ and the winds in the right in the Northern Hemisphere and from the _____________________ Southern Hemisphere to turn toward the ________________.left in the Southern Hemisphere Jan 26­2:45 PM Jan 26­2:45 PM ESRT (Page 14) Global Wind Belts Polar Easterlies Results in winds coming from the ______________________ NE in the Northern Hemisphere and from the _____________________SE in the Southern Hemisphere Jan 26­2:45 PM Jan 26­2:45 PM Summary Slide Polar Easterlies Polar Easterlies Jan 26­2:45 PM Jan 26­2:45 PM 6 Planetary Wind and MOISTURE BELTS in the Troposphere Doldrums Near the equator Warm air rises steadily Cool air moves into the area, but it is quickly warmed and rises before it moves along the surface very far Very lile horizontal moon = lile to no winds Jan 26­2:45 PM Jan 26­2:45 PM Horse Latudes Jet Streams Two in each hemisphere: Near the subtropical high 1. _________________________________________Subtropical Jet Cool air sinks very vercally resulng in a small region with very lile horizontal movement of air 2. _________________________________________Polar Front Jet Hundreds of years ago, sailors stranded in these areas ran out of Very high altude winds (somemes as high as 10 km above Earth) food and water for their horses and had to throw them overboard Blow from ________________ to ________________West East Meander ____________ and _____________ along a __________North South wavy path Hundreds of km wide; only a few km thick (speeds of 200‐400 km/h) ~200 MPH Jan 26­2:45 PM Jan 26­2:45 PM ESRT (Page 14) http://www.youtube.com/watch?v=XAdv6uAJPxM&feature=youtu.be Jan 26­2:45 PM Jan 26­2:45 PM 7 Local Winds One more quick thing concerning winds…. Sea Breezes: In the daytime, land heats ____________ than water.faster Warm________ air _________ and creates a _______rises low pressure area over the ________.land Air _________ over the relatively __________ watersinks cool creating a ________ pressure areahigh Wind will blow from _______ to _______.high low Breeze named for point of ___________.origin Jan 28­6:38 PM Jan 28­6:38 PM Local Winds Local Winds Sea Breezes: Land Breezes: Hand draw a daytime picture here…. In the nighttime, land cools ____________ than water.faster ________ air _________ and creates a _______Cool sinks high pressure area over the ________.land Air _________ over the relatively __________ waterrises warm creating a ________ pressure arealow Wind will blow from _______ to _______.high low Breeze named for point of ___________.origin Jan 28­6:38 PM Jan 28­6:38 PM Local Winds Land Breezes: Hand draw a nighttime picture here…. Jan 28­6:38 PM Jan 31­8:08 AM 8.
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