UNOLS Booth at 2014 Ocean Sciences Conference Program
... Limnology and Oceanography poster presenters to be available to talk about their is not allowed at the meeting. For more than 50 years, ASLO has been a leadposters have been scheduled between 16:00 and ing professional organization for researchers and Thank you for your cooperation. 18:00 on Monday ...
... Limnology and Oceanography poster presenters to be available to talk about their is not allowed at the meeting. For more than 50 years, ASLO has been a leadposters have been scheduled between 16:00 and ing professional organization for researchers and Thank you for your cooperation. 18:00 on Monday ...
MAREDAT: towards a world atlas of MARine Ecosystem DATa
... However, the most reliable way to prevent double counting and achieve a consistent dataset would be to measure the biomass and cell size of all distinct phytoplankton groups in the same samples in transects that cross all ocean basins. A similar demarcation issue occurs for the zooplankton. The sum ...
... However, the most reliable way to prevent double counting and achieve a consistent dataset would be to measure the biomass and cell size of all distinct phytoplankton groups in the same samples in transects that cross all ocean basins. A similar demarcation issue occurs for the zooplankton. The sum ...
Climate change, fisheries, and aquaculture
... Abstract: Climate change, fishing, and aquaculture have affected and will continue to influence Canadian marine biodiversity, albeit at different spatial scales. The Arctic is notably affected by reduced quality and quantity of sea ice caused by global warming, and by concomitant and forecasted chan ...
... Abstract: Climate change, fishing, and aquaculture have affected and will continue to influence Canadian marine biodiversity, albeit at different spatial scales. The Arctic is notably affected by reduced quality and quantity of sea ice caused by global warming, and by concomitant and forecasted chan ...
MAREDAT: towards a world atlas of MARine Ecosystem DATa
... However, the most reliable way to prevent double counting and achieve a consistent dataset would be to measure the biomass and cell size of all distinct phytoplankton groups in the same samples in transects that cross all ocean basins. A similar demarcation issue occurs for the zooplankton. The sum ...
... However, the most reliable way to prevent double counting and achieve a consistent dataset would be to measure the biomass and cell size of all distinct phytoplankton groups in the same samples in transects that cross all ocean basins. A similar demarcation issue occurs for the zooplankton. The sum ...
Decadal variability of the thermohaline circulation.
... In contrast to the wind-driven part of the ocean circulation, the thermohaline circulation is driven by density gradients and extends from the surface to the abyssal ocean. It is organized in basin-scale coherent current systems, which are globally connected through the Southern Ocean (see e.g. Schm ...
... In contrast to the wind-driven part of the ocean circulation, the thermohaline circulation is driven by density gradients and extends from the surface to the abyssal ocean. It is organized in basin-scale coherent current systems, which are globally connected through the Southern Ocean (see e.g. Schm ...
consequences and acclimatization strategies
... organizers to the great success of the first two meetings, which made this third one possible. We observe an increasing awareness in the media, politics and the public mind, of the importance of the world’s oceans in climate dynamics and protein resources, but also of the threats from the sea. For a ...
... organizers to the great success of the first two meetings, which made this third one possible. We observe an increasing awareness in the media, politics and the public mind, of the importance of the world’s oceans in climate dynamics and protein resources, but also of the threats from the sea. For a ...
Variability and potential predictability
... anomalies is realistic. However, the role of the mean-state biases remains unclear. • These SST anomalies are created by the fluctuations of the subtropical -subpolar gyre boundary driven by small scale WSC anomalies. • The present results do not support an ocean mode that relies on a phase lagged r ...
... anomalies is realistic. However, the role of the mean-state biases remains unclear. • These SST anomalies are created by the fluctuations of the subtropical -subpolar gyre boundary driven by small scale WSC anomalies. • The present results do not support an ocean mode that relies on a phase lagged r ...
A Review of the North Atlantic Circulation, Marine Climate Change
... origin, water which had to sink and subsequently slowly spread into the low latitude regions. That the densest surface waters of the Atlantic ocean are found at the cold, high latitudes, not at the evaporative, warm and more saline low latitudes further supported the idea that deep convection at hig ...
... origin, water which had to sink and subsequently slowly spread into the low latitude regions. That the densest surface waters of the Atlantic ocean are found at the cold, high latitudes, not at the evaporative, warm and more saline low latitudes further supported the idea that deep convection at hig ...
The impact of global freshwater forcing on the thermohaline circulation
... freshwater forcing and tends on the contrary to diminish salinity in the convection sites. The THC changes results from a delicate balance between these opposing mechanisms. In this study we evaluate these two effects using the IPSL-CM4 ocean-atmospheresea-ice coupled model (used for IPCC AR4). Pert ...
... freshwater forcing and tends on the contrary to diminish salinity in the convection sites. The THC changes results from a delicate balance between these opposing mechanisms. In this study we evaluate these two effects using the IPSL-CM4 ocean-atmospheresea-ice coupled model (used for IPCC AR4). Pert ...
Deep-Sea Life
... - extensive data for download about the corals and sponges, such as their density, size and substrate - reports that characterize the deep-sea coral and sponge habitats surveyed over the last decade by scientists from NOAA, other agencies, and universities. The National Database for Deep-Sea Corals ...
... - extensive data for download about the corals and sponges, such as their density, size and substrate - reports that characterize the deep-sea coral and sponge habitats surveyed over the last decade by scientists from NOAA, other agencies, and universities. The National Database for Deep-Sea Corals ...
Inorganic Carbon-Assimilating Microbial Communities in the Pacific
... Figure 3.3 The highest SUP05 mean 16S rDNA copy number/ml observed during this study are plotted by location and average dissovled oxygen at bottom depth. SUP05 maximums range from 103 to 107 and were mostly observed in summer samples. ......................................................... 84 Fig ...
... Figure 3.3 The highest SUP05 mean 16S rDNA copy number/ml observed during this study are plotted by location and average dissovled oxygen at bottom depth. SUP05 maximums range from 103 to 107 and were mostly observed in summer samples. ......................................................... 84 Fig ...
C. 3.5 g
... exposed to sunlight for half an hour and then inverted over water. The volume of gas remained in the tube will be about ...
... exposed to sunlight for half an hour and then inverted over water. The volume of gas remained in the tube will be about ...
Contaminants in the arctic marine environment
... tend to follow carbon, will also be recycled efficiently. Taken together, the Arctic Ocean provides an efficient system both to capture and biomagnify many fat-soluble compounds in top predators. Aboriginal peoples who depend heavily on food from the sea, particularly in the Canadian and Greenland A ...
... tend to follow carbon, will also be recycled efficiently. Taken together, the Arctic Ocean provides an efficient system both to capture and biomagnify many fat-soluble compounds in top predators. Aboriginal peoples who depend heavily on food from the sea, particularly in the Canadian and Greenland A ...
Platinum-group elements (PGE) and rhenium in marine sediments
... which is approximately symmetrically distributed over a distance of ⬃1.8 m across the KTB. The Re-PGE abundance patterns are fractionated from chondritic relative abundances: Ru, Pt, Pd, and Re contents are slightly subchondritic relative to Ir, and Os is depleted by ⬃95% relative to chondritic Ir p ...
... which is approximately symmetrically distributed over a distance of ⬃1.8 m across the KTB. The Re-PGE abundance patterns are fractionated from chondritic relative abundances: Ru, Pt, Pd, and Re contents are slightly subchondritic relative to Ir, and Os is depleted by ⬃95% relative to chondritic Ir p ...
Evidence for strong sediment redistribution by bottom currents along
... Southern Ocean. However, this method has not been used to understand the lateral sediment input at the scale of the ocean basin. Consequently, little information is available about the spatially current-controlled sediment redistribution, how redistribution varies during glacial}interglacial periods ...
... Southern Ocean. However, this method has not been used to understand the lateral sediment input at the scale of the ocean basin. Consequently, little information is available about the spatially current-controlled sediment redistribution, how redistribution varies during glacial}interglacial periods ...
Plate Tectonics
... continents to move. He suggested that the continents pushed through the rocks of the ocean floor because of tidal forces; much like a plow cuts through the soil. Unfortunately for Wegener this idea was shown to be physically impossible. Consequently, continental drift, although providing a compellin ...
... continents to move. He suggested that the continents pushed through the rocks of the ocean floor because of tidal forces; much like a plow cuts through the soil. Unfortunately for Wegener this idea was shown to be physically impossible. Consequently, continental drift, although providing a compellin ...
Lecture 10: Ocean Circulation Basic Ocean Current
... Harald Sverdrup (1947) showed that the circulation in the upper kilometer or so of the ocean is directly related to the curl of the wind stress if the Coriolis force varies with latitude. Henry Stommel (1948) showed that the circulation in oceanic gyres is asymmetric also because the Coriolis fo ...
... Harald Sverdrup (1947) showed that the circulation in the upper kilometer or so of the ocean is directly related to the curl of the wind stress if the Coriolis force varies with latitude. Henry Stommel (1948) showed that the circulation in oceanic gyres is asymmetric also because the Coriolis fo ...
Rare earth elements and neodymium isotopes in sedimentary
... leaching scheme involves the use of acetic acid (AA) and hydroxylamine hydrochloride (HH) solutions to extract carbonate and oxy-hydroxide fractions, respectively, prior to OM extraction with a mixed hydrogen peroxide (H2O2) and dilute nitric acid solution (Gupta and Chen, 1975). More recently, this ...
... leaching scheme involves the use of acetic acid (AA) and hydroxylamine hydrochloride (HH) solutions to extract carbonate and oxy-hydroxide fractions, respectively, prior to OM extraction with a mixed hydrogen peroxide (H2O2) and dilute nitric acid solution (Gupta and Chen, 1975). More recently, this ...
Here are the study questions for the Exam 3. There are
... (e) none of these Answer: b [p. 276] 6. The zone of lighted ocean where marine autotrophs are able to thrive is called: (a) the disphotic zone. (b) the euphotic zone. (c) the aphotic zone. (d) the mesopelagic zone. (e) none of these Answer: b [p. 278] 7. Which of the following statements best charac ...
... (e) none of these Answer: b [p. 276] 6. The zone of lighted ocean where marine autotrophs are able to thrive is called: (a) the disphotic zone. (b) the euphotic zone. (c) the aphotic zone. (d) the mesopelagic zone. (e) none of these Answer: b [p. 278] 7. Which of the following statements best charac ...
Gravitational Potential Energy Sinks in the Oceans
... circulation models are supposed to conserve energy, they do not. For example, most models do not track the GPE gain through diapycnal mixing, nor the GPE loss due to convective adjustment. In addition, the leap-frog scheme used in time stepping in most models renders the energy conservation impossib ...
... circulation models are supposed to conserve energy, they do not. For example, most models do not track the GPE gain through diapycnal mixing, nor the GPE loss due to convective adjustment. In addition, the leap-frog scheme used in time stepping in most models renders the energy conservation impossib ...
A proposed biogeography of the deep ocean floor
... This was true also at the level of genera, except that the Greenland and European basins were also quite similar. From 3000 to 5000 m, the Norwegian and Greenland basins had similar species and generic compositions, as did the European-Angola-Cape basins at the species level, with the addition of th ...
... This was true also at the level of genera, except that the Greenland and European basins were also quite similar. From 3000 to 5000 m, the Norwegian and Greenland basins had similar species and generic compositions, as did the European-Angola-Cape basins at the species level, with the addition of th ...
SECTION HEADING - School of Ocean and Earth Science and
... present novel challenges to the prediction of anthropogenic impacts and requisite conservation actions. While once considered remote and well buffered from the euphotic zone and from human impacts, deep-sea ecosystems are increasingly recognized to be linked to processes in the upper ocean. In fact, ...
... present novel challenges to the prediction of anthropogenic impacts and requisite conservation actions. While once considered remote and well buffered from the euphotic zone and from human impacts, deep-sea ecosystems are increasingly recognized to be linked to processes in the upper ocean. In fact, ...
1994 arctic ocean section - CCHDO - University of California San
... the 1994 U.S.–Canada Arctic Ocean Section. The scientific motivation for the undertaking was to substantially increase the observational base necessary for better understanding the role of the Arctic in global change. The expedition’s objective was to make a series of measurements that would allow t ...
... the 1994 U.S.–Canada Arctic Ocean Section. The scientific motivation for the undertaking was to substantially increase the observational base necessary for better understanding the role of the Arctic in global change. The expedition’s objective was to make a series of measurements that would allow t ...
Age, spreading rates, and spreading asymmetry of the world`s ocean
... the age gradients associated with medium- to large offset fracture zones, set the gradients of "normal" ocean crust to zero, and scale the grid to range from one to two. After multiplying the error grid with the smoothed age gradients along fracture zones, we have not altered the errors associated w ...
... the age gradients associated with medium- to large offset fracture zones, set the gradients of "normal" ocean crust to zero, and scale the grid to range from one to two. After multiplying the error grid with the smoothed age gradients along fracture zones, we have not altered the errors associated w ...
Nitrogen in the Marine Environment
... the dark interior ocean (aphotic zone). There, it is remineralized back to its inorganic forms. Finally, these inorganic forms are transported back to the euphotic zone by ocean circulation and mixing, where they can fuel new growth. This coupling between biological and physical processes thus forms ...
... the dark interior ocean (aphotic zone). There, it is remineralized back to its inorganic forms. Finally, these inorganic forms are transported back to the euphotic zone by ocean circulation and mixing, where they can fuel new growth. This coupling between biological and physical processes thus forms ...
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.