Some of the greatest destruction comes from the storm surge or extreme high water levels due to the: Form when winds blow in one direction which causes water to pile up at one end of a basin. As waves pass, water particles move in ___________ motions? email prof. ] surf | In the open ocean they have short heights, long wavelengths (>100 km), and long periods. Internal waves which occur underwater and move along pycnoclines. Constructive wave interference occurs when several wave crests or troughs coincide. email prof. ] depending on the slope of the bottom _____________________ causes surface currents, _______________ causes deep currents. Question 13 of 25 40 40 points what persistent - Course Transformation of Deep-water Waves: Dispersion (Figure 7-7a) Answers: A. C. D. A slump (rotational landslide) is often preceded by __________________? surf | They are stationary and G. baymouth bar Oscillate back and forth about a node i.e., a fixed point. Waves Break by Spilling Plunging, or Surging (Figure 7-9) Wave energy is focused where the lines converge. email prof. ] They are stationary and Which mass wasting type is very slow movement that can cause fences, retaining walls, and telephone poles to tilt downhill? Sudden shifting of the ocean floor due to earthquakes, volcanic eruptions, and submarine slumping. What important function do surface currents provide to the land? Waves affect water to a depth equal to or less than one-half their wavelength. There are two other notable types of progressive waves. - Low pressure which leads to a rise in sea level. The orbits of the water molecules become elliptical. D. has a confining layer The orbits of the water molecules are circular. When this value is about 1/7, waves begin to break. Oscillate back and forth about a node i.e., a fixed point. The result is amplification of the wave size which can lead to flooding. Life History of Ocean Waves (Cont.) Internal waves which occur underwater and move along pycnoclines. http://dusk.geo.orst.edu/oceans/waves.html, Wave height/wave length. B. C. D. Which of these are causes of salt contamination of groundwater? Tsunamis Node = Fixed Point, Antinode = maximum displacement (Figure 7-11) The most damaging effect of storms is not necessarily the waves alone, but the waves in combination with storm surge (elevated sea level), created by the winds which pile water up along the shore. Storms affect shorelines in a variety of ways. The result is amplification of the wave size which can lead to flooding. Surf - waves that have reached the coast, grow in height, and break Period of wind or tides approximate the natural period of oscillation of the basin. Slower speeds than surface waves because the density difference between water masses is less than between air and water. lectures | Adding water to materials on a slope can reduce ____ and cause mass wasting to occur. Form when winds blow in one direction which causes water to pile up at one end of a basin. A special case is a tsunami, a deepwater wave generated by a submarine disturbance with incredibly long wavelengths, high wave speeds, and very short wave heights, UNTIL they feel the bottom in shallow water! Form when winds blow in one direction which causes water to pile up at one end of a basin. Think of sloshing in bathtubs and or swinging in swing The crests build up and the troughs build down. Refraction can be assessed by drawing wave orthogonals, imaginary lines perpendicular to the wave crest. Progressive Wave Types Wave height/wave length. Dividing the wavelength by the wave period. Form when winds blow in one direction which causes water to pile up at one end of a basin. Water depths are less than 1/20 the wave length. They have very long periods and very large heights. F. polarity They have very long periods and very large heights. Internal Waves Slower speeds than surface waves because the density difference between water masses is less than between air and water. Wave height/wave length. - Differential speed along the crest. Tsunamis The most damaging effect of storms is not necessarily the waves alone, but the waves in combination with storm surge (elevated sea level), created by the winds which pile water up along the shore. Internal Waves As waves enter shallow water their wavelength shortens and their height increases. Which of these is NOT a type of mass movement? Standing Waves depending on the slope of the bottom The orbital motion of water particles beneath the wave. C. talus blocks There are two other notable types of progressive waves. Waves are disturbances that are generated on or beneath the sea surface. Fetch of the waves C. Storm Surges Waves affect water to a depth equal to or less than one-half their wavelength. When the rate of discharge exceeds that of groundwater recharge, balances precipitation against evaporation and discharge. Slower speeds than surface waves because the density difference between water masses is less than between air and water. Click here for ANIMATION Some of the greatest destruction comes from the storm surge or extreme high water levels due to the: Waves affect water to a depth equal to or less than one-half their wavelength. Transformation of Deep-water Waves: Dispersion (Figure 7-7a) The result is amplification of the wave size which can lead to flooding. Node = Fixed Point, Antinode = maximum displacement (Figure 7-11) - Differential speed along the crest. Wave height/wave length. They occur when water masses slip over one another. The speed (celerity) of the wave form can be calculated by Interaction with the sea bottom. It is wave energy not water molecules that moves across the sea surface. The size of surface waves depends on the speed and duration of the wind, and the fetch. The tectonically active west coast of North America generally has a _________ coast. - Wave form Progressive waves move along the sea surface. The size of surface waves depends on the speed and duration of the wind, and the fetch. Transformation of Deep-water Waves: Dispersion (Figure 7-7a) Tsunamis Water depths are less than 1/20 the wave length. Form when winds blow in one direction which causes water to pile up at one end of a basin. labs | Life History of Ocean Waves (Cont.) B. sewage treatment plants When a landslide dams a river, what is the ultimate hazard? ______ streams only flow during rain events or the wet season. depending on the slope of the bottom labs | Breaking is determined by wave steepness Internal waves which occur underwater and move along pycnoclines. Internal Waves In shallow water, the sea bottom transforms the wave's properties. select all that apply. 239 There are two other notable types of progressive waves. Think of sloshing in bathtubs and or swinging in swing As waves enter shallow water: Destructive wave interference occurs when the crest of one wave coincides with the trough of another wave resulting in a cancellation. Resonance lectures | B. Meandering floodplains Oscillate back and forth about a node i.e., a fixed point. Wave Motion with Depth (Figure 7-3a) They have very long periods and very large heights. Tsunamis which are seismic sea waves. 239 lectures | Chapter 7 Summary This area is characterized by a "confused" sea state with extensive wave interference. -Depends on the location (Figure 7-6b) Period of wind or tides approximate the natural period of oscillation of the basin. The result is amplification of the wave size which can lead to flooding. When wave passes, no net displacement of water. Form when winds blow in one direction which causes water to pile up at one end of a basin. Life History of Ocean Waves (Cont.) The This give water several unique properties. Standing waves (seiches) do not move horizontally. Waves affect water to a depth equal to or This area is characterized by a "confused" sea state with extensive wave interference. surf | Bottom friction alters both the Sudden shifting of the ocean floor due to earthquakes, volcanic eruptions, and submarine slumping. http://dusk.geo.orst.edu/oceans/waves.html, - Wavelength shortens Which feature of a wave is most important to understand the energy of a wave? Why do some locations have especially high tidal ranges? Internal Waves What weather conditions can cause mass wasiting? Wave energy is defocused where the lines diverge. Other Types of Progressive Waves - Speed decreases Deep Water Waves (Figure 7-4a) In the open ocean they have short heights, long wavelengths (>100 km), and long periods. surf | - Destructive Wave energy is defocused where the lines diverge. Moving sand _____ causes surface currents, _____ causes The orbits of the water molecules become elliptical. Progressive waves move along the sea surface. Surfing Video: Condition Black Life History of Ocean Waves Which feature of a wave is most important in order to understand the wave base of a wave's motion? Wave Refraction (Figure 7-8a) What is the greatest mass wasting hazard to guests in Yosemite National Park? In shallow water their length shortens and their height increases dramatically. Bottom friction alters both the Answers: A. D. residential areas A tombolo b berm c spit d rip current e baymouth bar - Persistent onshore winds. As waves enter shallow water their wavelength shortens and their height increases. Wave Orthogonals (Figure 7-8) - Differential speed along the crest. The crests build up and the troughs build down. Waves Break by Spilling Plunging, or Surging (Figure 7-9) The steepest angle at which sediments will be stable and NOT move down hills is called _______. In the open ocean they have short heights, long wavelengths (>100 km), and long periods. Waves originate in the fetch area. Some of the greatest destruction comes from the storm surge or extreme high water levels due to the: A. fissures and cracks They have very long periods and very large heights. Standing waves (seiches) do not move horizontally. A. dissolved particles B. silt particles C. very fine particles D. saltation, Limestone can be a very jointed type of rock.Which drainage pattern would you expect to see as a result? Wave Refraction (Figure 7-8a)
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