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Topic: Low tide

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	Tide - Wikipedia, the free encyclopedia
		The tide is the regular rising and falling of the ocean's surface caused by changes in gravitational forces external to the Earth.
		The loss of rotational energy of the earth, due to friction within the tides, and the gravitational effects caused by tidal deformations of the earth's body, are responsible for the slowdown of the earth's rotation and the increase of the distance to the moon, see Tidal force.
		These depths are relative to "chart datum", which is the level of water at the lowest possible astronomical tide (tides may be lower or higher for meteorological reasons) and are therefore the minumum water depth possible during the tidal cycle.
	en.wikipedia.org /wiki/Tide (3482 words)

	tide (Site not responding. Last check: 2007-10-21)
		Tides are charted on a marjoram which shows the height of the tide above mean low water (sea level) and the time of the peaks of the high/low tides.
		The wavelength of this wave is 1/2 the circumference of the earth and period 12 hr and 25 min.
		The tide wave produced by the moon is greater magnitude and continually moves eastward relative to tide wave produced by the sun and therefore the tide forces produced by the moon are greater and more important than that of the sun (therefore tidal day 24h50m).
	darter.ocps.net /classroom/klenk/Tide.htm (1944 words)

	Tide -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-21)
		The time between high tide and low tide is called ebb or falling tide, the time between low tide and high tide is called flow, flood, or rising tide.
		Peaks and lows of the Channel wave and North Sea wave meet in the (The strait between the English Channel and the North Sea; shortest distance between England and the European continent) Strait of Dover at about the same time but generally favour a current in the direction of the North Sea.
		The exact time and height of the tide at a particular (The area within view) coastal point is also greatly influenced by the local (Precise detailed study of the surface features of a region) topography.
	www.absoluteastronomy.com /encyclopedia/t/ti/tide.htm (2499 words)

	* Low tide - (Boating): Definition (Site not responding. Last check: 2007-10-21)
		Mean low water- The depth of the water at average low tide.
		Spring tide: The tide with the most variation in water level, occurring during new moons and full moons.
		The period of high water level is known as high tide, and the period of low water level is known as low tide...
	www.bestknows.com /boating/low_tide.html (300 words)

	Insight into marine science \| Questions answered \| Tides questions and answers
		A tide is the regular and predictable movement of water caused by astronomical phenomena - the way the earth, moon and sun move in relation to each other and the force of gravity.
		Since the tide is caused by the astronomy of the earth-moon-sun system which is known very accurately and can be predicted well into the future, the tides can also be predicted well into the future.
		Tides are caused by the effects of gravity in the earth-moon-sun system, and the movement of those three bodies within the system.
	www.pol.ac.uk /home/insight/tidefaq.html (1965 words)

	The Tide Module (Site not responding. Last check: 2007-10-21)
		A semidiurnal tide is characterized by the occurrence of two high water and two low waters in a period of 24 hours and 50 minutes.
		High tides allow ships to reach areas that may otherwise be inaccessible because there is more water in a given waterway during high tides than at other times in the day.
		Fisherman know that fish are most likely to "bite" when the tide is turning (either changing from high to low or low to hi), and surfers, of course, prefer to be riding the waves when they are at their highest, namely during a high tide.
	njnie.dl.stevens-tech.edu /curriculum/tide.html (1361 words)

	The Moon And Tides
		The word "tides" is a generic term used to define the alternating rise and fall in sea level with respect to the land, produced by the gravitational attraction of the moon and the sun.
		Tides are the periodic rise and falling of large bodies of water.
		This very high tide occurs when the moon is both unusually close to the Earth (at its closest perigee, called the proxigee) and in the New Moon phase (when the Moon is between the Sun and the Earth).
	home.hiwaay.net /~krcool/Astro/moon/moontides (2972 words)

	Telling Tides (Site not responding. Last check: 2007-10-21)
		Students will learn to read a tide chart, determine the times of the high and low tides for a particular day for a standard reference point, as well as the tidal height relative to mean low water.
		Mean low water is the average height of all low tides measured at a given place over a 19 year period and mean high water is the average heights of all high tides at a given location over the same period of time.
		Most tide charts list the time for each high and low tide during a span of dates and list the heights of the tides relative to mean low water for the location.
	www.kpbsd.k12.ak.us /tustumena/cowans/Science/Tides.htm (1064 words)

	What causes high tide and low tide and why?
		The high and low tide are caused by the gravitational forces between the earth and the moon.
		The incorrect way of thinking is that the moon attracts all the water to itself, therefore causing a high tide on the side of earth close to the moon, and a low tide on the side far from the moon.
		Low tide occurs at about right angles to the moon, where the force on the waters match the average pull of the moon on the earth closely.
	www.physlink.com /Education/AskExperts/ae338.cfm (440 words)

	Low Tide
		Low tide is when the beach is widest and flattest, thus, best for running.
		Low tide shifts forward approximately 40 minutes each day, moving from morning to noon to afternoon to evening over a period of time.
		This low tide in my life allowed me to slow down and, in effect, sniff the flowers.
	www.halhigdon.com /Ontherun/lowtide/LowTide.htm (640 words)

	Watchable Wildlife -- Tide Pools
		Soft-bodied sea slugs and fish tend to be the most active hunters and retreat to protected coves and deep water during storms and low tides.
		Tide pool viewing is not for the faint of heart.
		Low Tides Mean High Times -- plan your trip to coincide with the lowest possible tides, generally those that occur near the times of a full or new moon.
	www.dfg.ca.gov /watchable/tidepools.html (737 words)

	Brudirect.com - Local News
		The low tide is expected to continue during the day time until December 27 with depth measuring as low as 0.4 meter.
		As was during the recent high tide, water taxi operators are similarly advised to take extreme precaution during the current low tides.
		The low tides usually occur twice annually as a result of the pull of the sun and moon, which causes the water levels to differ from one part of the world to another.
	www.brudirect.com /DailyInfo/News/Archive/Dec04/191204/nite02.htm (435 words)

	Tide Pools (Site not responding. Last check: 2007-10-21)
		Tide pools form in rocky beach outcroppings and provide a home for hardy organisms.
		During low tide, barnacles are exposed to the sun and predators.
		low tide zone—Because the low-tide zone is usually covered by water, organisms here are not as sturdy and cannot tolerate much exposure to the air or sun.
	www.npca.org /marine_and_coastal/beaches/tide_pools.asp (545 words)

	High Tide and Low Tide (from ocean waves and tides) -- Britannica Student Encyclopedia
		In most places, the tide rises and falls twice a day, reaching a maximum height called high tide on each rise and a minimum level called low tide on each fall.
		The reverse flow, occurring during rising tides, is called the flood tide.
		Red tides occur when coastal waters become overpopulated with certain types of algae and phytoplankton, including dinoflagellates, a type of single-celled algae.
	www.britannica.com /ebi/article-205874?tocId=205874 (882 words)

	Low Tide: the music
		The original score for 'LOW TIDE' is composed by Thomas Crawfurd and Per Bundgård. The score consists of a theme with inspiration from 'Malaika' and an 'Action Theme'.
		The subject of 'Malaika' is also the subject of 'Low Tide' - so here it is. This special version from the end credits of 'Low Tide' is arranged and performed by Kizingo Arts Troupe of Mombasa.
		Kizingo Arts Troupe was the main acting force of 'Low Tide' and their a cappella version of 'Malaika' is featured on the soundtrack.
	crawfurd.dk /jcjfilm/lowmus.htm (305 words)

	EAST - Online Information article about EAST
		condition of tidal rivers is due to the configuration of their outlet, the rise of tide at their mouth, the distance the tide can penetrate inland, and the space available for its reception.
		A bore indicates defects in the tidal condition and the navigable channel, which can only be reduced by lowering the obstructions and by the regulation of the river.
		Newcastle were originally insignificant rivers, almost dry in places at low water of spring-tides; and the earliest works on both rivers consisted mainly in regulating their flow and increasing their scour by jetties and training works.
	encyclopedia.jrank.org /DRO_ECG/EAST.html (1603 words)

	Interplanetary Low Tide (Site not responding. Last check: 2007-10-21)
		"Tides on Earth are dominated by the Sun and the Moon," explains professor George Lebo from the University of Florida Department of Astronomy.
		Tides caused by the biggest planet in our solar system, Jupiter, are 10 times less than the ones we feel from Venus.
		Tides won't be stretching our planet any more than usual when the planets get together behind the Sun.
	spacescience.com /headlines/y2000/ast04may_1m.htm (1226 words)

	Interplanetary Low Tide
		After all, "Spring Tides" (peak ocean tides that arise bi-monthly) occur when the Sun, the Moon and the Earth are nearly in a straight line around the times of the New Moon and Full Moon.
		Tides on our planet are caused by the gravitational pull of the Moon and Sun.
		Ocean tides on Earth can be as high as 12 meters (40 ft) depending on local geography and the alignment of the Moon and Sun.
	science.nasa.gov /headlines/y2000/ast04may_1m.htm (1224 words)

	Tides and Tide Prediction (Site not responding. Last check: 2007-10-21)
		This tide and tide prediction resource directory links to online tide predictors, tide observations/sea level measurements, tide prediction software you install to generate tide predictions on demand, and general information on tides and tide prediction.
		Tides are the alternating rise and fall of sea level with respect to land, as influenced by the gravitational attraction of the moon and sun.
		Other factors influence tides; coastline configuration, local water depth, seafloor topography, winds, and weather alter the arrival times of tides, their range, and the interval between high and low water.
	scilib.ucsd.edu /sio/tide (1195 words)

	Care urged during low tide
		If the lowest tides in 19 years tug at your curiosity, venture onto the tide flats with respect and a light foot.
		The lowest and highest tides in two decades are apt to create problems for humans, too, by hampering ferry travel for low-riding vehicles today and tomorrow, Washington State Ferries said.
		Extreme low tides create ground-clearance problems for low-riding vehicles driving off and onto steeper ferry ramps, including those with extended rear bumpers.
	seattlepi.nwsource.com /local/176356_lowtide04.html (349 words)

	Howstuffworks "What causes high tide and low tide? Why are there two tides each day?"
		In this diagram, you can see that the moon's gravitational force pulls on water in the oceans so that there are "bulges" in the ocean on both sides of the planet.
		If the moon is directly overhead on the opposite side of the planet, you should also experience a high tide.
		The twin bulges and the moon's rotation mean that any given coastal city experiences a high tide every 12 hours and 25 minutes or so.
	www.howstuffworks.com /question72.htm (190 words)

	Duxbury Reef at Low Tide
		Exploring the pools and crevices during at low tide.
		May 17th, 2003, the sun and moon aligned against the earth where their gravity field would pull tides down to their lowest level for the year.
		The tide is making it's way back in, and much of what was exposed before is now underwater.
	www.gatetrails.com /exhibits/duxburyreef.html (817 words)

	Twig Walkingstick - Where does the water go when it's low tide? (Site not responding. Last check: 2007-10-21)
		The first high tide rides on the Earth's surface directly between the center of the Earth and the moon.
		The second high tide is on the other side of the world, opposite the first one.
		This tide forms as the Earth twirls around an imaginary pole that sits between the Earth and the moon.
	www.ag.ohio-state.edu /~twig/environ/html/050497.html (267 words)

	NATURE: Life at the Edge of the Sea - Virtual Tide Pool
		The NATURE Virtual Tide Pool allows you to interact with one of the natural world's most fascinating places: that square of water where the ocean meets the land.
		To view this Virtual Tide Pool, you must have QuickTime VR, a plug-in that is now included when you download the free QuickTime 3 or above.
		Visit the tide pool during low tide (186K).
	www.pbs.org /wnet/nature/edgeofsea/tidepool.html (200 words)

	The Low Zone (Site not responding. Last check: 2007-10-21)
		Only during the lowest tides is this area exposed to air.
		Two of the most interesting animals found in the low zone are nudibranchs and sea urchins.
		During low tides, the holes fill up with water, providing necesssary moisture for their survival.
	www.sfgate.com /getoutside/1996/jun/lzone.html (231 words)

	Pasco: Low-tide holes with reds snap cold woes
		As the tide approaches its lowest point, the last of the water may squeeze between high spots, creating funnels or drains.
		The drains can be great areas when the tide is falling and at the beginning of an incoming tide, as the fish use them to leave and return to higher flats.
		As the tide begins to come in, the reds will start to work their way onto the flats.
	www.sptimes.com /2005/01/22/Pasco/Low_tide_holes_with_r.shtml (608 words)

	Why Tides? (Site not responding. Last check: 2007-10-21)
		The areas of high water levels are high tides and the areas of low levels are low tides.
		This causes the tides to occur at slightly different times.
		In the Gulf of Mexico there is only one high tide and one low tide each day.
	www.sfgate.com /getoutside/1996/jun/tides.html (316 words)

	Low Tide - short feature video from Kenya
		'Low Tide' is a video short story taking place in Kenya.
		'Low Tide' is a short improvised docu-drama about two tough days for the young Kenyan boy, Wataku.
		The story of 'Low Tide' is told by a friend of the character Wataku.
	www.crawfurd.dk /jcjfilm/low_tide.htm (471 words)

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