Coasts-The essential revision
... 2. The waves are mainly destructive - eroding the base of the cliffs (hydraulic action etc.) 3. Most of the material eroded from the cliffs is washed out to sea, the rest is moved by longshore drift - the beaches are therefore narrow and do little to protect the coastline. (If the beaches were wider ...
... 2. The waves are mainly destructive - eroding the base of the cliffs (hydraulic action etc.) 3. Most of the material eroded from the cliffs is washed out to sea, the rest is moved by longshore drift - the beaches are therefore narrow and do little to protect the coastline. (If the beaches were wider ...
1 NATURAL DISASTERS (GLY 125: 001, 002) Version #2 Exam # 1
... 36. The best-known successful prediction of a major earthquake was where and when? a. Fargo, North Dakota, in 1957 b. Haicheng, China, in 1975 c. Los Angeles in 1994 d. Hokkaido, Japan, in 1998 e. Banda Aceh, Sumatra, in 2004 37. Which of the following is probably associated with a failed rift syst ...
... 36. The best-known successful prediction of a major earthquake was where and when? a. Fargo, North Dakota, in 1957 b. Haicheng, China, in 1975 c. Los Angeles in 1994 d. Hokkaido, Japan, in 1998 e. Banda Aceh, Sumatra, in 2004 37. Which of the following is probably associated with a failed rift syst ...
Seismic waves - opotikicollegeearthscience
... • Surface waves are similar in nature to water waves and travel just under the Earth’s surface. They are typically generated when the source of the earthquake is close to the Earth’s surface. Although surface waves travel more slowly than S-waves, they can be much larger in amplitude and can be the ...
... • Surface waves are similar in nature to water waves and travel just under the Earth’s surface. They are typically generated when the source of the earthquake is close to the Earth’s surface. Although surface waves travel more slowly than S-waves, they can be much larger in amplitude and can be the ...
Slide 1
... EQ Hazards 3. Landslides/ Mudflows – loose soil/rock moves downhill 4. Tsunamis:; caused by water displacement due to EQ at sea (usu. Subduction); ...
... EQ Hazards 3. Landslides/ Mudflows – loose soil/rock moves downhill 4. Tsunamis:; caused by water displacement due to EQ at sea (usu. Subduction); ...
Structure-induced hydrodynamic waves
... structure-induced waves are responsible for a wide variety of FSI phenomena, and could often result in effects that negatively (sometimes to a significant degree) impact both the structure and fluid(s); thus, integrating the analysis of the structure-induced waves in the design process is necessary; ...
... structure-induced waves are responsible for a wide variety of FSI phenomena, and could often result in effects that negatively (sometimes to a significant degree) impact both the structure and fluid(s); thus, integrating the analysis of the structure-induced waves in the design process is necessary; ...
P and S waves moving through the Earth`s Interior
... measurements, the seismologists can get a better understanding of the composition of what the waves are traveling through. The waves travel at a higher velocity when going through denser materials. By noting where the waves have considerable velocity changes, the seismologists can infer where the co ...
... measurements, the seismologists can get a better understanding of the composition of what the waves are traveling through. The waves travel at a higher velocity when going through denser materials. By noting where the waves have considerable velocity changes, the seismologists can infer where the co ...
Chapter 2, Section 10
... of bending can extend for very long distances away from the fault. All rocks have shear strength. The shear strength of a rock is the force that is needed to break the rock when it is acted upon by forces in two opposite directions. Eventually, the forces overcome the shear strength of the rock. The ...
... of bending can extend for very long distances away from the fault. All rocks have shear strength. The shear strength of a rock is the force that is needed to break the rock when it is acted upon by forces in two opposite directions. Eventually, the forces overcome the shear strength of the rock. The ...
Geology 3015 Lecture Notes Week 10
... greatest overall influence on shorelines. • Wind velocity and duration are important controls on the size of waves. Fetch, the distance the wind blows over open water, also affects the size of wind-generated waves. • In areas where storm waves are generated, waves of different lengths, heights, and ...
... greatest overall influence on shorelines. • Wind velocity and duration are important controls on the size of waves. Fetch, the distance the wind blows over open water, also affects the size of wind-generated waves. • In areas where storm waves are generated, waves of different lengths, heights, and ...
Mechanical Waves
... As the velocity of the wave diminishes, the wave height increases considerably -- the compressed energy forces the water upward. A typical tsunami approaching land will slow down to speeds around 30 miles per hour (50 kph), and the wave heights can reach up to 90 feet (30 meters) above sea level. As ...
... As the velocity of the wave diminishes, the wave height increases considerably -- the compressed energy forces the water upward. A typical tsunami approaching land will slow down to speeds around 30 miles per hour (50 kph), and the wave heights can reach up to 90 feet (30 meters) above sea level. As ...
3.1 What is Wrong? - Secondary Social Science Wikispace
... 40 km NW of Auckland Central and extends from Okiritoto stream in the north to Maori Bay in the south, a distance of approximately 5km. One feature that occurs in this environment is a stack called Mototara Island. This feature is about 50m high and is located approximately 20 metres SW of the Otaka ...
... 40 km NW of Auckland Central and extends from Okiritoto stream in the north to Maori Bay in the south, a distance of approximately 5km. One feature that occurs in this environment is a stack called Mototara Island. This feature is about 50m high and is located approximately 20 metres SW of the Otaka ...
Supplement
... This investigation is aimed at showing that rogue waves can be generated by modulational instability in finite depth, namely when k0 h < 1.363. Before acceptance of the paper, I have important and minor comments that I would like the authors take into account. (i) What are the values, in the computa ...
... This investigation is aimed at showing that rogue waves can be generated by modulational instability in finite depth, namely when k0 h < 1.363. Before acceptance of the paper, I have important and minor comments that I would like the authors take into account. (i) What are the values, in the computa ...
Marine Physics
... certain low-lying rivers due to an incoming tide (tidal wave) Shallow water- touch the ocean floor which interfers with the wave’s orbital motion (controlled by water depth, ex: tsunami) Deep water- no interference with ocean bottom (wind generated, open ocean and controlled by wave length) ...
... certain low-lying rivers due to an incoming tide (tidal wave) Shallow water- touch the ocean floor which interfers with the wave’s orbital motion (controlled by water depth, ex: tsunami) Deep water- no interference with ocean bottom (wind generated, open ocean and controlled by wave length) ...
020140411072652428707EDEC029BFCF81DA670857C105C2A
... 3. The Characteristic Quantities of wave: (1) The wavelength reflects the periodic property in space. It depends on both source and medium. (2) The period T of wave reflects the periodic property in time. It depends on the source only. (3) The wave speed is the phase speed (波速v 即相速). It depends o ...
... 3. The Characteristic Quantities of wave: (1) The wavelength reflects the periodic property in space. It depends on both source and medium. (2) The period T of wave reflects the periodic property in time. It depends on the source only. (3) The wave speed is the phase speed (波速v 即相速). It depends o ...
13.42 Exam #1 Spring 2004 Open notes, book (1h 20mins) ρ
... tips of the blades do not get wet on a regular basis (i.e. We do not want the blades to cut through the water when the waves are higher than some level ho more than so many times per day or per hour on average.) a) What information do you need to know about the seas in this region to determine an id ...
... tips of the blades do not get wet on a regular basis (i.e. We do not want the blades to cut through the water when the waves are higher than some level ho more than so many times per day or per hour on average.) a) What information do you need to know about the seas in this region to determine an id ...
Scott McDowell, Ph.D. The Reality of Rogue Waves
... approaches and opposes major current systems such as the Atlantic Gulf Stream and the Agulhas Current off South Africa. Waves are typically classified as rogues when they are five- to eight times higher than the largest waves of the existing sea state. Recent studies have also proven the existence o ...
... approaches and opposes major current systems such as the Atlantic Gulf Stream and the Agulhas Current off South Africa. Waves are typically classified as rogues when they are five- to eight times higher than the largest waves of the existing sea state. Recent studies have also proven the existence o ...
Sound - Garnet Valley School District
... Standing Wave • A standing wave is a wave that appears to stay in one place – it does not seem to move through the medium. • Node – a point on a standing wave that has no _______________from the rest position. • Antinode – a point where a crest or trough occurs _____________between two nodes. ...
... Standing Wave • A standing wave is a wave that appears to stay in one place – it does not seem to move through the medium. • Node – a point on a standing wave that has no _______________from the rest position. • Antinode – a point where a crest or trough occurs _____________between two nodes. ...
Short-Hand Notes
... B) The importance of Subduction and ocean trenches 1) Different land formations are formed as a result of an oceanic trench 2) What type of land formations form depends on what types of rock meet ...
... B) The importance of Subduction and ocean trenches 1) Different land formations are formed as a result of an oceanic trench 2) What type of land formations form depends on what types of rock meet ...
P wave - LSMS Ms. Benson GT
... A) speed up or B) slow down as it moved further from the wave source? Waves can reflect off (bounce off) of materials that have a different density, or they can be refracted (bent) as they pass through a boundary between layers of different material. Scientists use the difference in arrival times of ...
... A) speed up or B) slow down as it moved further from the wave source? Waves can reflect off (bounce off) of materials that have a different density, or they can be refracted (bent) as they pass through a boundary between layers of different material. Scientists use the difference in arrival times of ...
Earthquakes – Chapter 6
... Shake or shear waves Second to be recorded Slower and more destructive than P waves Rocks are moved from side to side as the wave passes, moving at right angles to the direction of wave motion • Transverse waves, like water waves • Move through solid only ...
... Shake or shear waves Second to be recorded Slower and more destructive than P waves Rocks are moved from side to side as the wave passes, moving at right angles to the direction of wave motion • Transverse waves, like water waves • Move through solid only ...
Oceans - Geophile.net
... Stabilizing the Shore • Erosion problems along U.S. Coasts – Pacific Coast • Characterized by relatively narrow beaches backed by steep cliffs and mountain ranges • Major problem is the narrowing of the beaches – Sediment for beaches is interrupted by dams and ...
... Stabilizing the Shore • Erosion problems along U.S. Coasts – Pacific Coast • Characterized by relatively narrow beaches backed by steep cliffs and mountain ranges • Major problem is the narrowing of the beaches – Sediment for beaches is interrupted by dams and ...
Study Guide – Earthquake / Volcano
... 2. Fill in the blank a. The ____________________ scale assigns a number to determine the strength of earthquakes; each number being 32 times the energy of the previous number. b. Earthquakes occur mostly on plate ____________________. c. A ____________________ records the amplitude and frequency of ...
... 2. Fill in the blank a. The ____________________ scale assigns a number to determine the strength of earthquakes; each number being 32 times the energy of the previous number. b. Earthquakes occur mostly on plate ____________________. c. A ____________________ records the amplitude and frequency of ...
Internal Structure of the Earth File
... smaller bits, called plates, which float on a dense mantle. Parts of the mantle are molten liquid and movements in this liquid cause the plates to drift into one another. It is the meeting of the plates that causes the earthquakes. The density of the material forming the Earth increases with depth. ...
... smaller bits, called plates, which float on a dense mantle. Parts of the mantle are molten liquid and movements in this liquid cause the plates to drift into one another. It is the meeting of the plates that causes the earthquakes. The density of the material forming the Earth increases with depth. ...
Seismic Waves
... Secondary Waves are also known as S waves. These waves travel through solids only. S waves are slower then primary waves. Secondary waves arrive at a distance point. ...
... Secondary Waves are also known as S waves. These waves travel through solids only. S waves are slower then primary waves. Secondary waves arrive at a distance point. ...
Oceans in motion vocab - Raleigh Charter High School
... a current found along the coast that flows parallel to the beach. This current is caused when waves strike the beach at an angle. The front part of the wave hits the shallow water first and slows down. The rest of the wave bends as it comes onto the shore creating a current that parallels the beach. ...
... a current found along the coast that flows parallel to the beach. This current is caused when waves strike the beach at an angle. The front part of the wave hits the shallow water first and slows down. The rest of the wave bends as it comes onto the shore creating a current that parallels the beach. ...
Surf break
A surf break (also break, shore break, or big wave break) is a permanent (or semi permanent) obstruction such as a coral reef, rock, shoal, or headland that causes a wave to break, forming a barreling wave or other wave that can be surfed, before it eventually collapses. The topography of the seabed determines the shape of the wave and type of break. Since shoals can change size and location, affecting the break, it takes commitment and skill to find good breaks. Some surf breaks are quite dangerous, since the surfer can collide with a reef or rocks below the water. Surf breaks may be defended vehemently by surfers, as human activities and constructions can have unintended and unpredictable consequences which can be either positive, negative, or unknown. In 2008, surfers and environmentalists opposed a toll road project in Orange County, California that would have changed sediment patterns and affected the world-class Trestles surf break north of San Onofre State Beach which attracted 400,000 surfers in 2007.In 2007, the NSW Geographical Names Register began formally recognizing names of surf breaks in Australia, defining a surf break as a ""permanent obstruction such as a reef, headland, bombora, rock or sandbar, which causes waves to break"".One of the largest surf breaks in the world is the Jaws surf break in Maui, Hawaii, with waves that reach a maximum height of 40–60 feet (12–18 m).