Student HandoutsWeather Dynamics Unit

Science 10Mrs. S. Pipke-Painchaud

Wind “Movement of _________ in the

_________” (Nelson Science 10 516). Local or Regional Winds:

Prevailing Winds: Winds

(Nelson Science 10 516)

Coriolis Effect Named after Gaspard deCoriolis

______________ Mathematician Because of the Earth’s ___________ anything moving

______________ distances appear to ______________ direction “apparent change of direction in a moving object in a

rotating system is called the Coriolis Effect” (Nelson Science 10 516).

(NS10 516) “tendency for any moving body on or above the

earth's surface, e.g., an ocean current or an artillery round, to drift _______________ from its course because of the earth's rotation” (InfoPlease.com)

http://www.theozonehole.com/coriolis.htm

Earth rotates ______________ ________ Hemisphere

(counterclockwise) – move to ____________

__________________ Hemisphere (Clockwise) – move to ____________

http://www.worldstats.org/general_world/maps/prevailing_winds_big.shtml

http://research.haifa.ac.il/~maritime/departm/lessons/ocean/wwr199.gif

Please refer to page 517 in your textbook Figure 2 Skim through the information on page

516 In 1492, Christopher Columbus relied on

two important prevailing winds to sail to the Americas and home again.

A) What wind did he use to travel to America?

B) What wind did he use to travel home?

Animations Danish Wind Industry Association

http://www.windpower.org/en/tour/wres/coriolis.htm

Exploring Earth http://www.classzone.com/books/earth_scie

nce/terc/content/visualizations/es1904/es1904page01.cfm?chapter_no=visualization

http://www.classzone.com/books/earth_science/terc/content/visualizations/es1905/es1905page01.cfm?chapter_no=visualization

Causes of Prevailing Winds Please read through pages 518-519 Jet Stream:

“a _________________ of fast moving air found in

the _______________ atmosphere” (Univ. Illinois). Can be _____________________ of km long Few ___________ km wide Few km ___________ Generally, located ______________ km up The position of this upper-level jet stream denotes the

________________ of the strongest _________________ temperature contrast” (Univ. Illinois).

http://ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/cyc/upa/jet.rxml

Jet Stream Maps Jet Steam Images:

http://www.weatherimages.org/data/imag192.html Environment Canada:

http://weatheroffice.ec.gc.ca/jet_stream/index_e.html Weather.com

http://www.weather.com/maps/activity/aviation/saturdayusjetstream_large.html

California Weather Service http://virga.sfsu.edu/scripts/namjetstream_modelsml.

html

Effects of Prevailing Winds

“Remember that rising air tends to be ____________ and ________, while falling air tends to be _________ and ________” (Nelson Science 10 519).

Nelson Science 10 519

Consider where convection currents meet Equator: ________ and _____________ 30* North Latitude: cool, dry falling air

(________ like conditions) Gobi (__________), Sahara (__________), Mojave

(_________), Great Basin (NA) and Sonoran (NA) Deserts of North America (info on Hot and Cold

Deserts of the world) http://mbgnet.mobot.org/sets/desert/ofworld.htm

60* North Latitude: 2 air systems meet __________________ conditions Storms are _____________________ in the winter

(because the Arctic receives no _______________ = ___________ = greater temp ________________ from equator)

Nelson Science 10 519

http://www.mapsofworld.com/world-desert-map.htm

Earth from Different Perspectives Exploring Earth

http://www.classzone.com/books/earth_science/terc/content/visualizations/es0101/es0101page01.cfm?chapter_no=visualization

Environment Canada Wind Info:

http://lavoieverte.qc.ec.gc.ca/meteo/Documentation/Vent_e.html

International Polar Foundation: Katabatic and Anabatic Winds

http://www.antarctica.org/UK/Envirn/pag/vents_cata_UK.htm

Sources: Nelson Science 10 Textbook Infoplease. Infoplease.com. Coriolis

Effect http://www.infoplease.com/ce6/weather/A08

13558.html University of Illinois

Jet Stream: http://ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/cyc/upa/jet.rxml