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Waves

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Gabriella Putney

on 29 October 2013

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Transcript of Waves

Waves
Definitions
Some More Definitions...
Created by Gabriella Putney
A disturbing force that creates a wave, such as wind or a landslide.
Generating Force
http://www.oc.nps.edu/nom/day1/partc.html

Restoring Force
Wave Period
Tsunami
Fun in the

Sun
Where the
Waves
At?
Hurricane Waves or Swell
Energy from Waves
Waves
http://www.mai.liu.se/~halun/kurser/TATA37/vattenvagor.html
A force that returns a disturbed water surface to the equilibrium level, such as surface tension and gravity.
A continuous area of water over which wind blows in essentially a constant direction.
Fetch
http://www.vos.noaa.gov/MWL/apr_06/waves.shtml
A water wave form in which gravity acts as the restoring force; waves with wavelengths greater than 2 cm.
Gravity Wave
http://www.philip-lutzak.com/weather/GRAVITY%20WAVES%20-%20GOM/GRAVITY%20WAVES%20-%20GOM%20HOME.htm
Energy from Waves
The time during which something continues.
Duration
http://www.ride-the-waves.com/whatisrtw.htm
A wave created by the action of the sea surface.
Wind
http://redgreenandblue.org/2009/01/17/massachusetts-oks-10-wind-power-requirement/
The tendency of a liquid surface to contract owing to bonding forces between molecules.
Surface Tension
http://ch301.cm.utexas.edu/imfs/liquids/liquid-props-all.php
Wave Orbit
http://ffden-2.phys.uaf.edu/212_fall2009.web/Aaron_Simpson/waves.html
The process by which a disturbance at one point is propagated to another point more remote from the source with no net transport of the material of the medium itself; examples include the motion of electromagnetic waves, sound waves, hydrodynamic waves in liquids, and vibration waves in solids. Also known as propagation; wave propagation.
http://www.answers.com/topic/wave-motion-1#ixzz2ixy8WKhC
The time required for two successive wave crests or troughs to pass a fixed point.
http://www.exploratorium.edu/theworld/surfing/makingwaves.html
The speed at which the wave form of a progressive wave travels.
Wave Speed
http://wallchips.com/wonderful-big-ocean-wave-hd-desktop.html
Parts of a Sea Wave
http://www.srh.noaa.gov/jetstream/ocean/wave_max.htm
http://imgur.com/ZxvFv
A scale of wind forces by range of velocity; scale of sea state created by winds of these velocities.
The Beaufort Scale
http://www.universetoday.com/89174/beaufort-scale/
A wind-estimation system developed in 1806 by Admiral Sir Francis Beaufort of the British Navy. Admiral Beaufort related wind speed and sea surface conditions and designed a 0-12 (calm to hurricane) wind scale with descriptions sea conditions at each level.
The Universal Sea State Code
A long and relatively uniform wind generated ocean waves that have traveled out of their generating area.
Swell
http://www.imagekind.com/Ocean-swell-art?IMID=72546610-e0bd-4f09-bb97-81159994c598
A spiller will give a surfer a long ride. They form on wide and flat beaches. This is a type of breaker.
Spiller
http://en.wikipedia.org/wiki/Breaking_wave
A sea-surface wave that has become too steep to be stable and collapses.
Breaker
A breaker that will give a surfer a "more exciting" ride. They form on narrow, steep beach slopes.
Plunger
Barrel (or Tube)
An area of smooth surface water.
Slick
An abnormally high wave unrelated to local storm conditions.
Episodic Wave
A standing wave oscillation of an enclosed or semienclosed body of water that continues, pendulum fashion, after the generating force ceases.
Seiche
Arises seemingly out of nowhere and is significantly higher than surrounding waves.
Rogue
http://rexton.wordpress.com/2007/04/03/spring-near-peggys-cove/
http://weheartit.com/entry/83971849/search?context_type=search&context_user=L0L4z&page=2&query=waves
Surfing
http://weheartit.com/entry/83883297/search?context_type=search&context_user=zuzanna_conrad&page=5&query=surfing
Wind Surfing
http://weheartit.com/entry/72416173/search?context_type=search&context_user=mimille83&page=2&query=wind+surfing
Kite Boarding
http://weheartit.com/entry/14611890/search?context_type=search&context_user=TheGentleman&query=kite+boarding
S
a
i
l
i
n
g
http://weheartit.com/entry/80737625/search?context_type=search&context_user=marlesmit30&page=10&query=sailing
http://weheartit.com/entry/7996463/search?context_type=search&context_user=sydneyaugust&query=waves&sort=most_popular
http://weheartit.com/entry/83423169/search?context_type=search&context_user=rosesatdawn&query=barrel+
http://weheartit.com/entry/37524507/search?context_type=search&context_user=ForeverYoungPhotography&query=exciting+wave
http://weheartit.com/entry/66120247/search?context_type=search&context_user=anikaleblanc&query=smooth+water
http://weheartit.com/entry/80773087/search?context_type=search&context_user=zehrknll&page=2&query=lake+wave
http://weheartit.com/entry/83857312/search?context_type=search&context_user=juliet_darling&page=6&query=wave
http://weheartit.com/entry/53951967/search?context_type=search&context_user=lightningheart&page=2&query=wave+rough
http://weheartit.com/entry/52481672/search?context_type=search&context_user=TeriMarciel3&page=5&query=waves&sort=most_popular
http://weheartit.com/entry/63206667/search?context_type=search&context_user=sonhosobscuros&page=6&query=waves&sort=most_popular
http://www.nhc.noaa.gov/abouttafbprod.shtml
A turbulent layer of water that washes up on the beach after an incoming wave has broken.
Swash Zone
A back flow of water.
Backwash
http://weheartit.com/entry/83939385/search?context_type=search&context_user=beyzaa&page=3&query=waves
http://weheartit.com/entry/83883602/search?context_type=search&context_user=AgneMind&page=5&query=waves
A strong surface current flowing seaward from shore; the return movement of water piled up on the shore by incoming waves and wind.
Rip Currents
http://www.beachapedia.org/Rip_Currents
A group of waves of larger size within a swell.
Wave Trains or Wave Sets
http://weheartit.com/entry/64102058/search?context_type=search&context_user=BlaaaahhMariyan&page=2&query=wave+sets
A structure located to influence currents or protect the entrance to a harbor or river from waves (U.S. terminology).
Jetty
http://weheartit.com/entry/77704641/search?context_type=search&context_user=amalhmezph&page=2&query=jetty
A protective structure for the shore, usually built perpendicular to the shoreline; used to trap littoral drift or retard erosion of the shore; a type of jetty.
Groin
http://www.dnr.state.oh.us/Coastal_Main_Menu/HelpforLandowners/ProgramsforResourceImprovement/LakeErieShoreErosionManagementPlan/LESEMP_AppendixB_Glossary/tabid/23319/Default.aspx
A wall or embankment erected to prevent the sea from encroaching on or eroding an area of land.
Seawall
http://weheartit.com/entry/36723359/search?context_type=search&context_user=she_is_jane&query=seawall
A structure separating land and water areas; primarily designed to resit earth sliding and slumping or reduce wave erosion at the base of a cliff.
Bulkhead
http://www.myrickmarine.com/project/concrete-bulkhead-and-cap/
A bag filled with sand, typically used for defensive purposes or for protection from flooding.
Sandbags
http://keystonewm.wordpress.com/2011/05/16/time-for-sandbags-and-caution/
Vegetation
that occurs spontaneously without regular management, maintenance or species introductions.
Natural
Vegetation
A long period sea wave produced by a submarine earthquake or volcanic eruption. It may travel across the ocean for thousands of miles unnoticed from its point of origin and build up to great heights over shallow water at the shore.
Definition of a Tsunami
They are caused by underwater earthquakes, volcanic eruptions, sub-marine rockslides, or, more infrequently, by asteroids or meteoroids that collide into in the water from space.
How Tsunamis Form
Tsunamis occur most often along countries which border the Pacific "Rim of Fire", or "Ring of Fire'. One end of this region of high seismic and volcanic activity begins at New Zealand, heading northwest to Indonesia (completely bypassing Australia) and then west to Papua New guinea and Indonesia, northeast along the Asian coastline, east to North America and then south along the western North American coastline. Roughly horse-shoe shaped, the Ring of Fire extends about 40,000km long, and tsunamis can be generated anywhere along this rim.
Areas Likely to Have Tsunamis
Located in Ewa Beach, Hawaii, serves as the regional Tsunami Warning Center for Hawaii and as a national/international warning center for tsunamis that pose a Pacific-wide threat. This international warning effort became a formal arrangement in 1965 when PTWC assumed the international warning responsibilities of the Pacific Tsunami Warning System (PTWS).
The Pacific Warning System
Vital
Stats
on
One
of
(or some of)
the
Worst
Tsunamis
http://weheartit.com/entry/78345909/search?context_type=search&context_user=Junoclik13&query=tsunami
http://weheartit.com/entry/80833921/search?context_type=search&context_user=KarmaMoonjava&query=tsunami
http://weheartit.com/entry/83873278/search?context_type=search&context_user=sotiris&query=world+map
1883 Krakatoa tsunami
In 1883, the volcanic island of Krakatoa erupted in Indonesia. The blast destroyed two-thirds of the island and sent 130-foot-high waves surging across the Indian Ocean, killing 36,500 people from Indonesia to India.
1498 Japan tsunami
For the same reason Japan is famous for its hot springs, it's also known for its tsunami-causing earthquakes. It sits near where several continental and oceanic plates meet in the Pacific Ocean, and in 1498 those plates shifted.
1755 Lisbon tsunami
In 1755, a massive 9-magnitude earthquake in the Atlantic Ocean caused a 400-foot-high wave to come crashing down on Lisbon, the capital of Portugal.
http://news.bbc.co.uk/2/hi/science/nature/4149201.stm
Extra Credit
Cape Fear, Sydney, Australia
Big Sur
http://weheartit.com/entry/81992081/search?context_type=search&context_user=Rusherized&query=Big+sur
Peahi, or Jaws, Maui, Hawaii
http://weheartit.com/entry/83991691/search?context_type=search&context_user=itsawesomecauseitsmine&query=maui
http://andrewmichaelroberts.blogspot.com/2011/11/surfing-in-australia.html
Dungeons, South Africa
http://surfspotsmap.com/spot/africa/south-africa/cape-peninsula/dungeons-surf-forecast
http://weheartit.com/entry/14026746/search?context_type=search&context_user=jacarandaspring&query=hurricane+waves
http://weheartit.com/entry/41360044/search?context_type=search&context_user=drunkenheart&query=hurricane+waves
http://weheartit.com/entry/40567227/search?context_type=search&context_user=glassteeth&query=hurricane+waves
They extend perpendicular to the direction of the wave and capture or reflect the power of the wave.
Terminator Devices
http://www.boem.gov/Renewable-Energy-Program/Renewable-Energy-Guide/Ocean-Wave-Energy.aspx
These are long multisegment floating structures oriented parallel to the direction of the waves.
Attenuators
http://www.boem.gov/Renewable-Energy-Program/Renewable-Energy-Guide/Ocean-Wave-Energy.aspx
A floating structure with components that move relative to each other due to wave action (e.g., a floating buoy inside a fixed cylinder).
Point Absorber
http://www.boem.gov/Renewable-Energy-Program/Renewable-Energy-Guide/Ocean-Wave-Energy.aspx
http://weheartit.com/entry/61262171/search?context_type=search&context_user=devilwearsgabbana&page=9&query=natural+vegetation
Some
Humor
to End This Presentation!
Thank You for
Watching!
Full transcript