February 2008 - UP Beta Sigma
... Rapid thawing of arctic glacier is poised to throw a wrench at the Ocean Conveyor Belt. Over the past 40 years, salinity measurements within the North Atlantic have shown a gradually decreasing salt level. As the planet heats up further, the Atlantic Ocean could become more dilute due to increased p ...
... Rapid thawing of arctic glacier is poised to throw a wrench at the Ocean Conveyor Belt. Over the past 40 years, salinity measurements within the North Atlantic have shown a gradually decreasing salt level. As the planet heats up further, the Atlantic Ocean could become more dilute due to increased p ...
Earth Science: Ch 14 Review:
... Gas hydrates are compact chemical structures made of water and natural gas. The most common type of natural gas is methane, which produces methane hydrate. Gas hydrates occur beneath permafrost areas on land and under the ocean floor at depths below 525 meters. Most oceanic gas hydrates are created ...
... Gas hydrates are compact chemical structures made of water and natural gas. The most common type of natural gas is methane, which produces methane hydrate. Gas hydrates occur beneath permafrost areas on land and under the ocean floor at depths below 525 meters. Most oceanic gas hydrates are created ...
module - WordPress.com
... primary producers. The use of satellite imagery has transformed ocean science over the past 50 years, allowing detailed mapping of marine organisms and processes at varying scales, from meters to the scale of entire oceans, and therefore allowing us to draw conclusions about the cycling of carbon an ...
... primary producers. The use of satellite imagery has transformed ocean science over the past 50 years, allowing detailed mapping of marine organisms and processes at varying scales, from meters to the scale of entire oceans, and therefore allowing us to draw conclusions about the cycling of carbon an ...
049539193X_177835
... ship. Unlike a simple echo sounder, a multibeam system may have as many as 121 beams radiating from a ship’s hull. 3. Satellites cannot measure ocean depths directly, but they can measure small variations in the elevation of surface water using radar beams. This is useful because the pull of gravity ...
... ship. Unlike a simple echo sounder, a multibeam system may have as many as 121 beams radiating from a ship’s hull. 3. Satellites cannot measure ocean depths directly, but they can measure small variations in the elevation of surface water using radar beams. This is useful because the pull of gravity ...
Internal Forces that Shape the Earth (Plate Actions)
... 3. Created by sediment deposition 1. Sand dune, floodplain ...
... 3. Created by sediment deposition 1. Sand dune, floodplain ...
The Grass is Greener in the Coastal Ocean
... The Grass is Greener in the Coastal Ocean Coastal waters teem with life, but sometimes scientists can’t explain why are the most biologically productive portions of the world’s oceans. Acre for acre, the coastal ocean is as productive as a ...
... The Grass is Greener in the Coastal Ocean Coastal waters teem with life, but sometimes scientists can’t explain why are the most biologically productive portions of the world’s oceans. Acre for acre, the coastal ocean is as productive as a ...
PPT
... surface waters during photosynthesis Essential to the growth of phytoplankton If these biolimiting nutrients increase in sea water, life increases If these biolimiting nutrients decrease in sea water, life decreases Where would you expect to find the highest biomass in the Pacific?? ...
... surface waters during photosynthesis Essential to the growth of phytoplankton If these biolimiting nutrients increase in sea water, life increases If these biolimiting nutrients decrease in sea water, life decreases Where would you expect to find the highest biomass in the Pacific?? ...
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... shortages and a rise in metal prices. This has led to a renewed global interest in deepsea mining. However, the effects of large-scale industrial mining activities on the deep-sea environment are unknown. Over the next three years, a European team of scientists will study the long-term consequences ...
... shortages and a rise in metal prices. This has led to a renewed global interest in deepsea mining. However, the effects of large-scale industrial mining activities on the deep-sea environment are unknown. Over the next three years, a European team of scientists will study the long-term consequences ...
Ocean iron fertilisation
... available to predict whether it would be a safe and effective activity. There is little doubt that climate change is upon us, but no amount of panic over global warming or economic potential will change the risks and benefits. Legislation must reflect the available evidence so that the lure of profi ...
... available to predict whether it would be a safe and effective activity. There is little doubt that climate change is upon us, but no amount of panic over global warming or economic potential will change the risks and benefits. Legislation must reflect the available evidence so that the lure of profi ...
Chapter 15 - Life Near the Surface
... Generally, the most well known type of zooplankton are the shrimp-like ______________. Their primary habitat is __________________________________________________. What do krill eat? ______________________________________________________________________ How do they eat? ____________________________ ...
... Generally, the most well known type of zooplankton are the shrimp-like ______________. Their primary habitat is __________________________________________________. What do krill eat? ______________________________________________________________________ How do they eat? ____________________________ ...
Oceanic
... - Migration destinations (seabirds marine mammals, fish) - Fish breeding and nursery grounds - Primitive earth habitats ...
... - Migration destinations (seabirds marine mammals, fish) - Fish breeding and nursery grounds - Primitive earth habitats ...
Ocean WebQuest Task Sheet
... 2. Waves travel ____________ water, they do not take __________________ with them. http://www.enchantedlearning.com/subjects/ocean/Waves.shtml 3. Tsunamis are sometimes called tidal waves, and are different from surface waves: they are usually caused by ______________________________________________ ...
... 2. Waves travel ____________ water, they do not take __________________ with them. http://www.enchantedlearning.com/subjects/ocean/Waves.shtml 3. Tsunamis are sometimes called tidal waves, and are different from surface waves: they are usually caused by ______________________________________________ ...
The Ocean Floor
... deep-ocean floor between the continental margin and the oceanic ridge. Deep-Ocean Trenches • Trenches form at the sites of plate convergence where one moving plate descends beneath another and plunges back into the mantle. ...
... deep-ocean floor between the continental margin and the oceanic ridge. Deep-Ocean Trenches • Trenches form at the sites of plate convergence where one moving plate descends beneath another and plunges back into the mantle. ...
NANOOS
... international network of observations and data transmission, data management and communications, and data analyses and modeling that systematically and efficiently acquires and disseminates data and information on past, present and future states of the oceans and U.S. coastal1 waters to the head of ...
... international network of observations and data transmission, data management and communications, and data analyses and modeling that systematically and efficiently acquires and disseminates data and information on past, present and future states of the oceans and U.S. coastal1 waters to the head of ...
THE OBSERVATORIES INITIATIVE
... Immediately following a volcanic or tectonic event, hydrothermal systems evolve rapidly as they exhaust shallow heat sources, expel fluids that phase separate during the event, and respond to changes in permeability structure. As the system returns towards equilibrium, it will continue to undergo sl ...
... Immediately following a volcanic or tectonic event, hydrothermal systems evolve rapidly as they exhaust shallow heat sources, expel fluids that phase separate during the event, and respond to changes in permeability structure. As the system returns towards equilibrium, it will continue to undergo sl ...
I. Marine Biology Then and Now
... Marine Biology is a semester course designed to broaden student’s understanding of life science by exploring the earth’s oceans. Students will be introduced to how the world’s oceans are a vast resource that benefits mankind. They will also comprehend how marine organisms can cause problems for huma ...
... Marine Biology is a semester course designed to broaden student’s understanding of life science by exploring the earth’s oceans. Students will be introduced to how the world’s oceans are a vast resource that benefits mankind. They will also comprehend how marine organisms can cause problems for huma ...
Lesson 5 - Florida 4-H
... gaping mouth with long curved teeth in order to capture and hold prey. Other species can produce light in complex bioluminescent organs. This light is then used to lure smaller prey species within striking distance of predatory jaws. The abyssal zone is considered the deep ocean zone, reaching depth ...
... gaping mouth with long curved teeth in order to capture and hold prey. Other species can produce light in complex bioluminescent organs. This light is then used to lure smaller prey species within striking distance of predatory jaws. The abyssal zone is considered the deep ocean zone, reaching depth ...
Lesson 5: Coral Reefs and the Open Ocean - Florida 4-H
... gaping mouth with long curved teeth in order to capture and hold prey. Other species can produce light in complex bioluminescent organs. This light is then used to lure smaller prey species within striking distance of predatory jaws. The abyssal zone is considered the deep ocean zone, reaching depth ...
... gaping mouth with long curved teeth in order to capture and hold prey. Other species can produce light in complex bioluminescent organs. This light is then used to lure smaller prey species within striking distance of predatory jaws. The abyssal zone is considered the deep ocean zone, reaching depth ...
Key concepts
... -know the difference between oceanic crust & continental crust -know how pressure and temperature change as you move through the layers of the earth and their effects on the behavior of rocks -know the internal source of heat inside the earth and how heat moves by conduction or convection -know how ...
... -know the difference between oceanic crust & continental crust -know how pressure and temperature change as you move through the layers of the earth and their effects on the behavior of rocks -know the internal source of heat inside the earth and how heat moves by conduction or convection -know how ...
South Pacific Ocean - Alvarado High School
... warmer than those in the South Pacific. This seems strange because the surface waters in the South Pacific are definitely warmer. However, because the ratio of land to sea area is greater in the North Pacific, the cumulative amount of cold deep water is less. In other words, the average temperature ...
... warmer than those in the South Pacific. This seems strange because the surface waters in the South Pacific are definitely warmer. However, because the ratio of land to sea area is greater in the North Pacific, the cumulative amount of cold deep water is less. In other words, the average temperature ...
“Continental Drift and Plate Tectonics Study Guide”
... ocean (50 million years old). Magnetic reversals can also be used as seafloor spreading proof. Every 200,000 years or so, the earth’s poles reverse. During those times any rock that forms will have a record of what the polarity was at that time. Since the polarity of the rock that makes up the ocea ...
... ocean (50 million years old). Magnetic reversals can also be used as seafloor spreading proof. Every 200,000 years or so, the earth’s poles reverse. During those times any rock that forms will have a record of what the polarity was at that time. Since the polarity of the rock that makes up the ocea ...
Activity 2A- Plates and Gates
... many scientists and technicians gathering data from many sources to confirm how the continents have been shaped by plate-tectonic processes. Wegener used the fossil record and similarity in rock layers as evidence. When Wegener presented the evidence that the fossil plant Glossopteris was found on m ...
... many scientists and technicians gathering data from many sources to confirm how the continents have been shaped by plate-tectonic processes. Wegener used the fossil record and similarity in rock layers as evidence. When Wegener presented the evidence that the fossil plant Glossopteris was found on m ...
environmental science fall exam review
... 136. This is an organism that makes their own food. 137. This means self to feed. 138. Give an example of an autotroph. 139. During photosynthesis ________________ energy is captured 140. What are the three things required for photosynthesis to occur? 141. A consumer is also known as a ____________ ...
... 136. This is an organism that makes their own food. 137. This means self to feed. 138. Give an example of an autotroph. 139. During photosynthesis ________________ energy is captured 140. What are the three things required for photosynthesis to occur? 141. A consumer is also known as a ____________ ...
Ocean Circulation Notes
... water in a large circular patterns known as gyres which are centered around 30 degrees latitude both north and south. These gyres move clockwise in the Northern Hemisphere and counter-clockwise in the Southern Hemisphere. The Ekman Current •In 1905, Eckmann determined a theoretical value for this ph ...
... water in a large circular patterns known as gyres which are centered around 30 degrees latitude both north and south. These gyres move clockwise in the Northern Hemisphere and counter-clockwise in the Southern Hemisphere. The Ekman Current •In 1905, Eckmann determined a theoretical value for this ph ...
Oceanographer publishes atlas of seafloor volcanoes
... "These systems have really changed how we think about the oceans, and life on Earth and on other planets," Kelley said. "When I was first going to sea, we were still using 35 mm cameras, and one of my first jobs at sea Provided by University of Washington was processing film on a rolling ship," Kell ...
... "These systems have really changed how we think about the oceans, and life on Earth and on other planets," Kelley said. "When I was first going to sea, we were still using 35 mm cameras, and one of my first jobs at sea Provided by University of Washington was processing film on a rolling ship," Kell ...
Ocean acidification
Ocean acidification is the ongoing decrease in the pH of the Earth's oceans, caused by the uptake of carbon dioxide (CO2) from the atmosphere. An estimated 30–40% of the carbon dioxide from human activity released into the atmosphere dissolves into oceans, rivers and lakes. To achieve chemical equilibrium, some of it reacts with the water to form carbonic acid. Some of these extra carbonic acid molecules react with a water molecule to give a bicarbonate ion and a hydronium ion, thus increasing ocean acidity (H+ ion concentration). Between 1751 and 1994 surface ocean pH is estimated to have decreased from approximately 8.25 to 8.14, representing an increase of almost 30% in H+ ion concentration in the world's oceans. Since current and projected ocean pH levels are above 7.0, the oceans are technically alkaline now and will remain so; referring to this effect as ""decreasing ocean alkalinity"" would be equally correct if less politically useful. Earth System Models project that within the last decade ocean acidity exceeded historical analogs and in combination with other ocean biogeochemical changes could undermine the functioning of marine ecosystems and disrupt the provision of many goods and services associated with the ocean.Increasing acidity is thought to have a range of possibly harmful consequences, such as depressing metabolic rates and immune responses in some organisms, and causing coral bleaching. This also causes decreasing oxygen levels as it kills off algae.Other chemical reactions are triggered which result in a net decrease in the amount of carbonate ions available. This makes it more difficult for marine calcifying organisms, such as coral and some plankton, to form biogenic calcium carbonate, and such structures become vulnerable to dissolution. Ongoing acidification of the oceans threatens food chains connected with the oceans. As members of the InterAcademy Panel, 105 science academies have issued a statement on ocean acidification recommending that by 2050, global CO2 emissions be reduced by at least 50% compared to the 1990 level.Ocean acidification has been called the ""evil twin of global warming"" and ""the other CO2 problem"".Ocean acidification has occurred previously in Earth's history. The most notable example is the Paleocene-Eocene Thermal Maximum (PETM), which occurred approximately 56 million years ago. For reasons that are currently uncertain, massive amounts of carbon entered the ocean and atmosphere, and led to the dissolution of carbonate sediments in all ocean basins.