Forces Equilibrium vs. Dynamic Tides

Slides:

Advertisements

Similar presentations

Tides EW Chapter 4.2 Pages

Advertisements

Unit 8 - Tides.

Chapter 21 Section 3 Review Page 534

TIDES periodic, short term changes in the height of the ocean surface at a particular place.

Essentials of Oceanography 7th Edition

Chapter 10: Tides Fig Fig

CHAPTER 9 Tides. Overview Rhythmic rise and fall of sea level Rhythmic rise and fall of sea level Very long and regular shallow-water waves Very long.

Essentials of Oceanography

TIDES. Tides - periodic rise and fall of sea surface Generated by the gravitational attraction of the Sun and Moon on the oceans moon closer to earth,

Waves and Tides. Wave Characteristics Most ocean waves are energy passing through water caused by the wind Crests are the top of the waves Troughs are.

TIDES. What is a tide? A tide is the periodic rise and fall of a body of water due to gravitational interactions between the sun, moon and Earth The wavelength.

TIDES. Tides The periodic short term changes in the height (rise or fall) of the ocean surface at a particular place Caused by a combination of –Distance.

Tides. What is a tide TIDE: A periodic short-term change in the height of the ocean surface at a particular place. A tide is one huge _______________.

TIDES Chapter A tide has a waveform. - Shallow water wave (large L compared to water depth). -Crest of wave is high tide. -Trough.

Daily Changes in Tides. Tides- Caused by gravity from the Sun and the Moon pulling on and deforming large bodies of water Historical Tide Gauge at Anchorage,

Tides What are tides? Why are there low and high tides each day?

Tides!!!!!!!!!!!. Tides Periodic, short-term changes in ocean height Periodic, short-term changes in ocean height.

Why Are There Tides? The tides are caused by the gravitational pull of the moon and sun and by the rotations of the earth, moon, and sun. The Earth and.

TIDES Tide Producing Forces Formation of the Tidal Bulges Movement of Tidal Bulges The Three Types of Tides Spring and Neap Tides Rotary Motion in Standing.

The Tides Chapter 11. Tidal Range Tide Patterns Diurnal tide T = 1 day One high and one low per day.

Tides Cause Tides- daily variations in sea level

Tides What causes the tides? High Tides ● The gravitational pull of the Moon causes the tides. ● Water bulges on the side facing the Moon. ● The Earth.

Tides are the periodic rise and fall of the water level in the oceans and other large bodies of water.

TIDES. Tides  Tides are long period waves that move in the ocean in response to the gravitational force of the sun and the moon.  Tides originate in.

TIDES The EBB and FLOW. Tides are affected by... Gravitational pull of the moon Gravitational pull of the sun Centrifugal force of earth as it rotates.

Chapter 9: Tides Physical Oceanography. Last chapter you learned about waves How do you differentiate between a deep-water and shallow-water wave? What.

Tsunami, Seiches, and Tides

Ocean Tides The ocean surface rises and falls several feet on a predictable normal pattern – normally on a daily schedule. This is what is called the Tide.

*Refer to Chapter 12 in your Textbook. Learning Goals: 1. I can explain how tidal waves are generated. 2. I can differentiate between the various types.

Tides Gravity- pull or attraction between objects; varies with mass of object Centrifugal force- because the earth and moon are rotating simultaneously.

Tides Oceans 11. What causes tides? Winds and currents move the surface water causing waves. Winds and currents move the surface water causing waves.

Tides An ocean tide refers to the cyclic rise and fall of seawater.

Tides. Tides Tides are caused by the gravitational pull of the moon, sun and by the rotation of the earth, moon and sun. Tides are caused by the gravitational.

TIDES Chapter 10. Study Plan Tides are the longest of all Ocean Waves Tides are the longest of all Ocean Waves Tides are forced waves formed.

Tides. Bay of Fundy ► Boats can only travel at higher tides ► Some of the highest tides in the world.

Tides. What causes tides? Tides are created by the imbalance between two forces: 1. Gravitational force of the Moon and Sun on Earth If mass increases.

TIDES Tide Producing Forces Formation of the Tidal Bulges

CHAPTER 9 Tides Dr. C. Dong, ECC

CHAPTER 9 Tides.

Tides and Tsunami.

Focus on Tides Objectives: Students will learn what causes tides.

Tides Tides are the daily change in sea level of the ocean.

UNIFORM CIRCULAR MOTION PLANETARY MOTION KEPLER’S LAW

Tides Periodic rising and falling of ocean waters caused by the gravitational pull of the sun, moon & Earth. Also affected by: Shape and depth of ocean.

Waves and Tides Notes.

CHAPTER 9 Tides

Tides Page 46 in Your Notebook.

Tides Tides are daily changes in the elevation of the ocean surface (sea level) Ocean tides result from the gravitational attraction exerted upon Earth.

The regular rising and falling of the sea level on a daily basis

Unit 8 Vocabulary Axis – imaginary line about which an object rotates

Biggest ocean waves of all

Tides Diagram Name (5) _________ Title (5) _________ Spring Tides

Tides and the Moon What are tides? What is an ellipse? Why do we only see the one side of the moon?

A Rising tide lifts all boats

Lesson 4.2: Tides *Refer to Chapter 12 in your Textbook.

Tides Periodic rising and falling of ocean waters caused by the gravitational pull of the sun, moon & Earth. Also affected by: Shape and depth of ocean.

The Restless Seas Tides and Waves.

QQ: Draw and label a picture that explains why earth has seasons.

Tides Science 8.

Tides Tides are daily changes in the elevation of the ocean surface (sea level) Ocean tides result from the gravitational attraction exerted upon Earth.

“Waves & Tides” 16.2.

Presentation transcript:

Forces Equilibrium vs. Dynamic Tides

Forces that create tides Earth-sun and Earth-moon systems Example of swinging bucket Centripetal forces Gravitational forces Resultant forces

Equilibrium tides Water covered earth (no continents) No friction on earth Drawings of earth-moon-sun system Note position of bulges Note alignment of earth-moon vs. earth-sun

Spring vs. Neap Tides

Dynamic tides Earth is not ideal Orbits are ellipses not circles Basins have variable shapes Earth is tipped on its axis as are other planetary bodies

Varieties of tides Diurnal tides: 1 high, 1 low per day Semi-diurnal tides: 2 highs, 2 lows per day Mixed tides: 2 highs, 2 lows per day, but of unequal heights (one example)

Consider highs and lows in each tidal day

Tides in inlets No swimming signs Tidal currents moving through inlet ebb tidal current flood tidal current slack water

Tide height Current speed

Tidal currents in rivers Tidal bores: strong river current meets strong flood tidal current and creates a wave!

Approaching tidal bore on river in Nova Scotia Photo by MS Bollinger