About of OCEAN TIDE
Earth's Oceans: Tides - EnchantedLearning.com
Brief description and illustrations about what causes the tide to rise and fall.
(Already a member? ) ALL ABOUT OCEANS AND SEAS TIDES WHAT CAUSES THE TIDES? Tides are periodic rises and falls of large bodies of water
Tides are caused by the gravitational interaction between the Earth and the Moon
Since the earth is rotating while this is happening, two tides occur each day
was the first person to explain tides scientifically
The Sun's Interaction with the Tides Spring Tides Spring tides are especially strong tides (they do not have anything to do with the season Spring)
The gravitational forces of the Moon and the Sun both contribute to the tides
Spring tides occur during the full moon and the new moon
The Proxigean Spring Tide is a rare, unusually high tide
This very high tide occurs when the moon is both unusually close to the (at its closest, called the ) and in the New Moon phase (when the Moon is between the Sun and the Earth)
The proxigean spring tide occurs at most
Neap Tides Neap tides are especially weak tides
Neap tides occur during quarter moons
WEB LINKS ON TIDES from the Department of Geography, Okanagan University College ALL ABOUT OCEANS AND SEAS ® Over 20, 000 Web Pages
The Moon And Tides
Explains with graphs and pictures how the moon affects oceans. Includes the
differences between lunar, spring, neap, high, and low tides.
Moon Tides How The Moon Affects Ocean 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
To a much smaller extent, tides also occur in large lakes, the atmosphere, and within the solid crust of the earth, acted upon by these same gravitational forces of the moon and sun
What are Lunar Tides Tides are created because the Earth and the moon are attracted to each other, just like magnets are attracted to each other
Each day, there are two high tides and two low tides
The ocean is constantly moving from high tide to low tide, and then back to high tide
There is about 12 hours and 25 minutes between the two high tides
Tides are the periodic rise and falling of large bodies of water
Since the earth is rotating while this is happening, two tides occur each day
What are the different types of Tides When the sun and moon are aligned, there are exceptionally strong gravitational forces, causing very high and very low tides which are called spring tides, though they have nothing to do with the season
What are Tides?
Brief definition concerning the rise and fall of the tides.
NDBC Science Education Pages What are tides? Tides are the periodic (occurring at regular intervals) variations in the surface water level of the oceans, bays, gulfs, and inlets
Tides are the result of the gravitational attraction of the sun and the moon on the earth
Therefore, the moon plays a larger role than the sun in producing tides
Because of the physical processes which occur to produce the tidal system, there are two high tides and two low tides each day
Because of the angle of the moon with respect to the earth, the two high tides each day do not have to be of equal height
The same holds true for the two low tides each day
Tides also differ in height on a daily basis
Scientists use measurements of the height of the water level to examine tides and the various phenomena which influence tides, such as hurricanes and winter storms
What do you think a graph of tide data looks like? National Data Buoy Center 1100 Balch Blvd
EIA Kids Page - Energy from the ocean
Describes tidal, wave, ocean, solar and wind energy. Contains facts, fun and
games, brief biographies of energy people, timelines and classroom activities.
Ocean Energy Tidal Energy Tides are caused by the gravitational pull of the moon and sun, and the rotation of the earth
Sluice gates on the barrage allow the tidal basin to fill on the incoming high tides and to empty through the turbine system on the outgoing tide, also known as the ebb tide
There are two-way systems that generate electricity on both the incoming and outgoing tides
Tidal fences can also harness the energy of tides
info: OCEAN TIDE
Photo by www.theglasscrafter.com
Tides Online
Provides users with immediate graphical and tabular water level and meteorological
data from US National Ocean Service water level stations located along the ...
Science Tribune - 1998-
Article by Peter Brosche on gaining understanding of changes in the Moon's orbit.
However, according to the solitary theoretical speculations of the philosopher Immanuel Kant (1754), oceanic tides retarded the rotation of the earth
Today, the precise mechanism of energy dissipation is still an open question and, despite a better knowledge of time-scales and sophisticated mathematical modelling techniques, ocean tides are still not known with the desired accuracy
In 1754, however, the young philosopher Immanuel Kant, who took great interest in scientific issues, reasoned on the basis of pure theory that the action of oceanic tides must slow down the earth's rotation
His article appeared in a newspaper devoted in large part to advertisements and warrants amidst a windmill sales-ad and a want-ad for peacocks! Kant apparently did not take his ideas on tides very seriously as they have no mention in his ' Allgemeine Naturgeschichte und Theorie des Himmels '
Darwin was not fully aware of Mayer's view and, in his popular book on tides, mistakenly states that Mayer did not consider the reaction on the moon
Darwin's description fitted precisely solid earth tides only and this might be why they were temporarily studied in preference to ocean tides
OceanFun Publishing Ltd
Tide graphics, tables, and astronomical data for NZ.
Updated 17 Jun 2006 #3 Publishing site #5 Fishing site Tide Times Pocketbooks, Solunar Times, and Tide Calendars essential information available now for..
Tide graphics, tables, and astronomical data are supplied to the following industries: Newspapers Web sites Magazines Radio stations Calendar Publishers Television Fishing competitions Apparel Copyright © 2003 OceanFun Publishing Ltd
Please read our And for the search engines: OceanFun Publishing publishes tide tables tide graphs and tide charts for ports harbours beaches around new zealand, for boaties fishers fishermen surf surfers windsurf newspapers
Tide places include Akaroa Auckland Bluff Dunedin Gisborne Lyttelton Marsden Point Napier Nelson Onehunga Picton Pouto Point Russell Taranaki Tauranga Timaru Wanganui Westport Wellington Whakatane and Whangarei
Tide Chart Index Connecticut Coast West
Covering New Haven to Greenwich.
TIDE CHARTS Now Hosted by the MMTA Now Hosted by the URI Foundation MARINER'S WEATHER NAUTICAL LINKS REVIEWS As of April 1, 2006, Maine Harbors will no longer provide Tide, Onshore Weather & related information for the Connecticut coast
Please Note: We will continue to provide Tide Predictions, Weather & related information for the Maine, New Hampshire, Massachusetts and Rhode Island coastline as well as for New England
Benefits
Photo by geodesy.eng.ohio-state.edu
The Energy Story - Chapter 14: Ocean Energy Explanations on how to get energy from the
ocean in three basic ways like
ocean's
waves, high and low
tides, and temperature differences in the water.
We can use the ocean'swaves, we can use the ocean's high and low tides, or we can use temperaturedifferences in the water
When tides comes into theshore, they can be trapped in reservoirs behind dams
Then when the tide drops, thewater behind the dam can be let out just like in a regular hydroelectric powerplant
In order for tidal energy to work well, you need largeincreases in tides
An increase of at least 16 feet betweenlow tide to high tide is needed
There are only a few placeswhere this tide change occurs around the earth
One plant inFrance makes enough energy from tides (240 megawatts) topower 240, 000 homes
Science Question of the Week - Dec. 21, 2001 - tidal bores
Describes which rivers have the most impressive tidal bores.
Which rivers have the most impressive tidal bores? Do any US rivers have a noticeable bore? The tug of the Moon and the Sun on our old planet causes tides - water sloshes back and forth across the oceans in a predictable if not straightforward way
Many if not most of the world's rivers entering the sea have noticeable tides, and some have extremely high tidal ranges
A tidal bore is the leading edge of the rising tide
It's a wave like phenomena that moves up the mouth of rivers, which are subject to exaggerated tides
Quite often where tides are impressive, tidal bores are as well
In the Bay of Fundy (in Nova Scotia, Canada), which has the largest tidal fluctuation between high and low tides anywhere in the world, bores are well-known tidal features
While even a normal tide may rise and fall 40 feet, when the moon is full or new, the tide may be an astonishing 53 feet! In contrast to the Bay of Fundy, on the Atlantic side of the Panama Canal, for example, the difference between the normal high tide and low tide is less than a foot
Tides tend to be retarded by friction when they reach shallower water, the tide therefore piles up and forms a low wall of water that can move upstream with considerable force as the tide continues to rise
Centre for AstroPhysics and Space Science
Summary of related research projects at Chalmers University of Technology in Sweden.
Ocean Clocks Time and Tide Clocks localised for your coast
Tide clocks localized to any port or region, with logos incorporated into the face.
OCEAN TIDE ?
NOAA's National Ocean Service
Information on environmental monitoring, coastal monitoring and assessment, water
quality, biodiversity, aeronautical chargting and cartography, ...
Visit for tide levels arround the U.S
InterOcean systems, inc. - Solutions for Currents, Waves, Tides ...
Design and manufacturer of the oceanographic and environmental equipment.
Product line includes current meters, wave & tide gauges, acoustic releases, winches, ...
Our product line includes S4 Current Meters, Wave & Tide Gauges, Meteorological/Oceanographic (METOC) Buoys, Acoustic Releases, Winches & Marine Handling Systems, Hydrophones, and Remote Oil Spill Detection and Sampling
Hydrophones, Transducers Releases, Transponders, Pingers S4 Current Meters, CTDs, Wave & Tide Gauges Buoy Systems Winches Buoys Oil Spill InterOcean systems, inc
Ocean Sensors Home
Specializes in the development of innovative ocean measurement instrumentation
and systems. Developers of lightweight Conductivity/Temperature/Depth (CTD) ...
Primary parameters include: conductivity, temperature, pressure (CTD), wave height, sound speed, ocean tide, turbidity, DO/pH and acoustic measurements
Reed's Nautical Almanac - Tide charts, Ocean currents maps, NOAA ...
Nautical books, magazines and Reed's books for sale.
Subscribe before the next tide
NOAA Home Page
Offers interactive mapping tools that allow users to locate NOS products in any
area in the United States and its territories through a metadata catalog.
Coral reefs, tides, currents, buoys, marine sanctuaries, estuaries, diving, spills Real-time imagery, environmental, geostationary and polar satellites Protecting marine mammals, sea turtles, habitats, statistics, economics, enforcement El Niño & La Niña, global warming, drought, climate prediction, archived weather data, paleoclimatology Environmental labs , air quality, atmospheric processes, climate and human interactions Coastal services, products, Great Lakes, coastal zone management Nautical & navigational charts, mapping, remote sensing, safe navigation Where can I get satellite pictures of hurricanes, storms, floods and similar events? A Web site to help you find NOAA information
BoM - Oceanographic Services
Facility of the bureau of meteorology that specialises in sea level monitoring
and analysis for the purpose of deriving trends in absolute sea level and ...
| SEARCH | National Tidal Centre The National Tidal Centre (NTC) specialises in sea level monitoring and analysis for the purpose of deriving trends in absolute sea level and producing national tide predictions, tide streams and related information
The NTC is the primary source of tide tables, tidal streams and tidal constituents provided to the Australian Hydrographic Service
The NTC also manages the national data archive for sea levels and tides
Contact details are: National Tidal Centre Australian Bureau of Meteorology PO Box 421 Kent Town SA 5071 Email: (Remove the'.nospam' part to use this address) Telephone: (08) 8366 2730 Facsimile: (08) 8366 2651 SERVICES NTC produces a range of products involving tidal and sea level processes that include: Tidal analysis While the moon's gravitational force is recognised as the primary influence on tides, there are more than 100 scientifically recognised constituents (called harmonic constants) that affect the timing and height of tides
NTC balances the impact of these specific constituents with analysis of regional factors, such as coastally-trapped waves, to prepare tide predictions for port and harbour authorities, the Royal Australian Navy, and persons and authorities engaged in recreation, tourism, marine resource related industries, coastal development, trade and commerce
PSMSL - ACCLAIM information
Measurements from coastal tide gauges and bottom pressure stations, together with
an ongoing research programme in satellite altimetry in the South Atlantic and ...
The ACCLAIM Programme in the South Atlantic and Southern Oceans The ACCLAIM (Antarctic Circumpolar Current Levels by Altimetry and Island Measurements) programme in the South Atlantic and Southern Oceans consists of measurements from coastal tide gauges and bottom pressure stations, together with an ongoing research programme in satellite altimetry
The main POL Principal Investigators involved in ACCLAIM are: Dr Ian Vassie, and ACCLAIM COASTAL TIDE GAUGE SITES Phase 1 of ACCLAIM Coastal Gauges In Phase 1 of ACCLAIM from 1983, measurements at coastal tide gauge sites took the form of sub-surface pressure (SSP) measurements (units of pressure e.g
St.Helena) extensive tide pole data are also available and biases and long term drifts in the sensor data may eventually be rectified (this is under study at present)
Precise datum control for pressure tide gauges
Status of ACCLAIM Coastal Gauges as of October 2000 Red dots on the above map indicate sites of POL's South Atlantic coastal tide gauge network (ACCLAIM), while the yellow dots show gauges (not necessarily operational) commited to the GLOSS programme by other countries in the region
Red Tide and Harmful Algal Blooms
Introduces kids to algal blooms, a case where algae is environmentally hazardous.
Site Directory Introduction to Algal Blooms and 'Red Tide' Visible Algal Blooms; Photomicrographs; Satellite imagery
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