074LessonsTsunami - University of Hawaii
... Tsunami waves propagate across the deep ocean with a speed exceeding 800 km/h ( 500 mph) and a wave height of only a few tens of centimeters or less. As they reach the shallow waters of the coast, the waves slow down and their height increases up to tens of meters (30 ft) or more. ...
... Tsunami waves propagate across the deep ocean with a speed exceeding 800 km/h ( 500 mph) and a wave height of only a few tens of centimeters or less. As they reach the shallow waters of the coast, the waves slow down and their height increases up to tens of meters (30 ft) or more. ...
Life in the Ocean
... organisms moving through the water. – Seawater is essentially transparent to sound. – Many marine mammals, including whales, routinely communicate over great distances, even the width of an ocean basin. ...
... organisms moving through the water. – Seawater is essentially transparent to sound. – Many marine mammals, including whales, routinely communicate over great distances, even the width of an ocean basin. ...
Changes and causes of variability in salinity and dissolved inorganic
... may be considered to reflect the least modified signal of Atlantic Water. Freshwater run-off is probably responsible for decreased salinities in the Irish Sea and Dutch coastal zone. As in many rivers, the concentration of DIP during the winter months (0.40–0.5 ìM) in the Irish Sea and Dutch coastal ...
... may be considered to reflect the least modified signal of Atlantic Water. Freshwater run-off is probably responsible for decreased salinities in the Irish Sea and Dutch coastal zone. As in many rivers, the concentration of DIP during the winter months (0.40–0.5 ìM) in the Irish Sea and Dutch coastal ...
News of the Northeast Pacific Ocean
... Americas there has been no sea level rise since 1992. The entire coast north of 20°S is mostly shaded blue, representing sea level fall from 1992 to 2010. On the other hand, the western tropical Pacific has experienced a much greater rise, with some regions surpassing 10 mm/yr. ...
... Americas there has been no sea level rise since 1992. The entire coast north of 20°S is mostly shaded blue, representing sea level fall from 1992 to 2010. On the other hand, the western tropical Pacific has experienced a much greater rise, with some regions surpassing 10 mm/yr. ...
Blue growth in the deep sea: balancing economic and
... And its hided net with meshes set, Odd fishes to entangle! The ship may move thro’ the waves above, ‘Mid scenes exciting wonder, But braver sights the dredge delights, As it roves the waters under….. Blue growth and the deep sea ...
... And its hided net with meshes set, Odd fishes to entangle! The ship may move thro’ the waves above, ‘Mid scenes exciting wonder, But braver sights the dredge delights, As it roves the waters under….. Blue growth and the deep sea ...
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... the Mariana Trench—and returned home safely. However, Trieste was extremely bulky and not designed for exploration. On 26 March 2012, a technologically advanced research submersible was finally ready to brave a return to the site, and another human made that same round trip, reigniting the excitemen ...
... the Mariana Trench—and returned home safely. However, Trieste was extremely bulky and not designed for exploration. On 26 March 2012, a technologically advanced research submersible was finally ready to brave a return to the site, and another human made that same round trip, reigniting the excitemen ...
Ocean Boundary Currents - Student Climate Data
... Western boundary currents are among the largest and strongest ocean currents and typically move 40 to 120 km (25 and 75 miles) per day. These currents also extend much deeper than most other surface currents, down to a depth of 1000 m (3300 feet) or more. Thus, the strong western boundary currents a ...
... Western boundary currents are among the largest and strongest ocean currents and typically move 40 to 120 km (25 and 75 miles) per day. These currents also extend much deeper than most other surface currents, down to a depth of 1000 m (3300 feet) or more. Thus, the strong western boundary currents a ...
Milky Seas: A New Science Frontier for Nighttime Visible
... On rare occasions over the centuries, mariners have returned from long excursions at sea with fascinating tales of glowing ocean waters. The ‘milky seas’ coined by these observers describes vast expanses of seemingly ‘white’ water which glow constantly and over great distances. Milky seas are noctur ...
... On rare occasions over the centuries, mariners have returned from long excursions at sea with fascinating tales of glowing ocean waters. The ‘milky seas’ coined by these observers describes vast expanses of seemingly ‘white’ water which glow constantly and over great distances. Milky seas are noctur ...
Earth`s Oceans
... rivers run into the ocean. Salinity levels are also affected by animals such as clams and oysters that use calcium salts to build their shells. They remove salt from the water. In warm ocean areas where there is little rainfall and much evaporation, the amount of dissolved salts is much greater. In ...
... rivers run into the ocean. Salinity levels are also affected by animals such as clams and oysters that use calcium salts to build their shells. They remove salt from the water. In warm ocean areas where there is little rainfall and much evaporation, the amount of dissolved salts is much greater. In ...
Oceanography Questions for Test 1
... 18. (9) You are on a sedimentology cruise that started in San Diego and you are heading south to Antarctica. As you head south the ship’s echo sounder record shows that water depth decreases and you realize that you are approaching the East Pacific Rise. You are taking surface sediment samples with ...
... 18. (9) You are on a sedimentology cruise that started in San Diego and you are heading south to Antarctica. As you head south the ship’s echo sounder record shows that water depth decreases and you realize that you are approaching the East Pacific Rise. You are taking surface sediment samples with ...
OCEANS: EARTH`S LAST FRONTIER
... magma: liquid rock mid-ocean ridge: long, underwater mountain range nekton: marine organisms that can swim freely photosynthesis: process by which plants use energy from the sun, water and carbon dioxide to produce sugar and oxygen phytoplankton: tiny plants that float in the ocean plankton: aquatic ...
... magma: liquid rock mid-ocean ridge: long, underwater mountain range nekton: marine organisms that can swim freely photosynthesis: process by which plants use energy from the sun, water and carbon dioxide to produce sugar and oxygen phytoplankton: tiny plants that float in the ocean plankton: aquatic ...
RADIOCARBON IN PARTICULATE MATTER FROM THE Woods
... bined effect of these two water sources results in a distinct, low-salinity surface layer. At ca 300m depth the sub-Arctic Current system predominates (Favorite, Dodimead & Nasu, 1976), the source of which is the Northwestern Pacific. The deeper layer (500m) is in the Ridge Domain, which is cold, sa ...
... bined effect of these two water sources results in a distinct, low-salinity surface layer. At ca 300m depth the sub-Arctic Current system predominates (Favorite, Dodimead & Nasu, 1976), the source of which is the Northwestern Pacific. The deeper layer (500m) is in the Ridge Domain, which is cold, sa ...
Currents and Climate
... They also move cold water from the poles towards the equator. This moderates the climate of our planet. ...
... They also move cold water from the poles towards the equator. This moderates the climate of our planet. ...
Gennady Korotaev Marine Hydrophysical Institute National
... Hydrometeoservice and Ministry of environment) have dedicated funding from state to support obligatory observational network and to carry out oceanographic research. ...
... Hydrometeoservice and Ministry of environment) have dedicated funding from state to support obligatory observational network and to carry out oceanographic research. ...
A Look at Important Marine Areas in the U.S. Beaufort and Chukchi
... Sound decision-making about the future of the U.S. Arctic Ocean must include an understanding of how its marine ecosystems function. Although all areas of the U.S. Chukchi and Beaufort seas contribute to ecological integrity, some are especially vital to the health of that ecosystem. An extensive re ...
... Sound decision-making about the future of the U.S. Arctic Ocean must include an understanding of how its marine ecosystems function. Although all areas of the U.S. Chukchi and Beaufort seas contribute to ecological integrity, some are especially vital to the health of that ecosystem. An extensive re ...
Summer cyanobacterial blooms in
... Contradicting this view, the studies presented here show that these cyanobacteria in fact support zooplankton recruitment. Moreover is the ecological role of the most famous cyanobacterial toxin in the Baltic Sea, nodularin, evaluated. As blooms are predicted to increase due to global climate change ...
... Contradicting this view, the studies presented here show that these cyanobacteria in fact support zooplankton recruitment. Moreover is the ecological role of the most famous cyanobacterial toxin in the Baltic Sea, nodularin, evaluated. As blooms are predicted to increase due to global climate change ...
Lique ice heated bel..
... of the mechanisms that can transfer heat from warm Atlantic water to the overlying surface layer. Tidal flow over topography, as well as wind blowing at the ocean surface, can act to generate internal waves at density interfaces within the ocean. As they propagate and eventually break, these interna ...
... of the mechanisms that can transfer heat from warm Atlantic water to the overlying surface layer. Tidal flow over topography, as well as wind blowing at the ocean surface, can act to generate internal waves at density interfaces within the ocean. As they propagate and eventually break, these interna ...
Deep sea, the last great unexplored earth - Archimer
... maxillipeds to ingest its epibiotic microbial community composed of epsilon-proteobacterial, gammaproteobacterial thiotrophs, and occasionally of gamma-proteobacterial methanotrophs, and S. crosnieri assimilates these epibiotic Bacteria in the intestine as nutrition source. Dr Karine Alain (CNRS-UBO ...
... maxillipeds to ingest its epibiotic microbial community composed of epsilon-proteobacterial, gammaproteobacterial thiotrophs, and occasionally of gamma-proteobacterial methanotrophs, and S. crosnieri assimilates these epibiotic Bacteria in the intestine as nutrition source. Dr Karine Alain (CNRS-UBO ...
What caused the tsunami
... The outer crust of the earth is like a jigsaw. It is broken into huge pieces called plates. These plates move around very slowly. Where the plates meet they grind together and cause earthquakes. Volcanic eruptions also happen here. The Indian Ocean earthquake occurred just west of Sumatra where the ...
... The outer crust of the earth is like a jigsaw. It is broken into huge pieces called plates. These plates move around very slowly. Where the plates meet they grind together and cause earthquakes. Volcanic eruptions also happen here. The Indian Ocean earthquake occurred just west of Sumatra where the ...
Lecture 2
... Ø Two opposing processes, mixing and stratification regulate the structure of the euphotic zone and the magnitude of the biological activity within it. In the open sea the stratification of the sea is set mainly by temperature and the homogeneous mixed layer of varying depth is formed by the balance ...
... Ø Two opposing processes, mixing and stratification regulate the structure of the euphotic zone and the magnitude of the biological activity within it. In the open sea the stratification of the sea is set mainly by temperature and the homogeneous mixed layer of varying depth is formed by the balance ...
Plankton and Fisheries in Devon
... Plankton, consisting of mostly microscopic plants (phytoplankton, Figure 1) and animals (zooplankton, Figure 2) ranging in size from microscopic single celled animals to jellyfish, which may be very large, but including the larval stages of fish and shellfish as well as other bottom living and sea s ...
... Plankton, consisting of mostly microscopic plants (phytoplankton, Figure 1) and animals (zooplankton, Figure 2) ranging in size from microscopic single celled animals to jellyfish, which may be very large, but including the larval stages of fish and shellfish as well as other bottom living and sea s ...
Oceans - Delta Education
... observe and then diagram the movement of water in the water cycle chamber compare their simulated water cycle with the water cycle in the environment conclude that most of the precipitation that falls on Earth both originates in and returns to the oceans ...
... observe and then diagram the movement of water in the water cycle chamber compare their simulated water cycle with the water cycle in the environment conclude that most of the precipitation that falls on Earth both originates in and returns to the oceans ...
CHAPTER 11 The global ocean
... profile of ocean geochemistry and physical structure based on salinity, density and temperature outlines the highly diverse character of sea water in its shallow surface layers – which exchange mass and thermal energy with the atmosphere and landsurface – overlying a broadly homogeneous deep ocean. ...
... profile of ocean geochemistry and physical structure based on salinity, density and temperature outlines the highly diverse character of sea water in its shallow surface layers – which exchange mass and thermal energy with the atmosphere and landsurface – overlying a broadly homogeneous deep ocean. ...
Sea
A sea is a large body of salt water that is surrounded in whole or in part by land. More broadly, the sea (with the definite article) is the interconnected system of Earth's salty, oceanic waters—considered as one global ocean or as several principal oceanic divisions. The sea moderates Earth's climate and has important roles in the water cycle, carbon cycle, and nitrogen cycle. Although the sea has been travelled and explored since prehistory, the modern scientific study of the sea—oceanography—dates broadly to the British Challenger expedition of the 1870s. The sea is conventionally divided into up to five large oceanic sections—including the IHO's four named oceans (the Atlantic, Pacific, Indian, and Arctic) and the Southern Ocean; smaller, second-order sections, such as the Mediterranean, are known as seas.Owing to the present state of continental drift, the Northern Hemisphere is now fairly equally divided between land and sea (a ratio of about 2:3) but the South is overwhelmingly oceanic (1:4.7). Salinity in the open ocean is generally in a narrow band around 3.5% by mass, although this can vary in more landlocked waters, near the mouths of large rivers, or at great depths. About 85% of the solids in the open sea are sodium chloride. Deep-sea currents are produced by differences in salinity and temperature. Surface currents are formed by the friction of waves produced by the wind and by tides, the changes in local sea level produced by the gravity of the Moon and Sun. The direction of all of these is governed by surface and submarine land masses and by the rotation of the Earth (the Coriolis effect).Former changes in the sea levels have left continental shelves, shallow areas in the sea close to land. These nutrient-rich waters teem with life, which provide humans with substantial supplies of food—mainly fish, but also shellfish, mammals, and seaweed—which are both harvested in the wild and farmed. The most diverse areas surround great tropical coral reefs. Whaling in the deep sea was once common but whales' dwindling numbers prompted international conservation efforts and finally a moratorium on most commercial hunting. Oceanography has established that not all life is restricted to the sunlit surface waters: even under enormous depths and pressures, nutrients streaming from hydrothermal vents support their own unique ecosystem. Life may have started there and aquatic microbial mats are generally credited with the oxygenation of Earth's atmosphere; both plants and animals first evolved in the sea.The sea is an essential aspect of human trade, travel, mineral extraction, and power generation. This has also made it essential to warfare and left major cities exposed to earthquakes and volcanoes from nearby faults; powerful tsunami waves; and hurricanes, typhoons, and cyclones produced in the tropics. This importance and duality has affected human culture, from early sea gods to the epic poetry of Homer to the changes induced by the Columbian Exchange, from Viking funerals to Basho's haikus to hyperrealist marine art, and inspiring music ranging from the shanties in The Complaynt of Scotland to Rimsky-Korsakov's ""The Sea and Sinbad's Ship"" to A-mei's ""Listen to the Sea"". It is the scene of leisure activities including swimming, diving, surfing, and sailing. However, population growth, industrialization, and intensive farming have all contributed to present-day marine pollution. Atmospheric carbon dioxide is being absorbed in increasing amounts, lowering its pH in a process known as ocean acidification. The shared nature of the sea has made overfishing an increasing problem.