Census of seafloor sediments in world`s ocean basins
... discontinuous on our map with a major interruption in the Drake Passage where sedimentation is dominated by a large body of sand (Fig. 3). Sponge spicules form a significant component of seafloor sediment in parts of the Australian-Antarctic Basin where they co-occur with diatom and radiolarian ooze ...
... discontinuous on our map with a major interruption in the Drake Passage where sedimentation is dominated by a large body of sand (Fig. 3). Sponge spicules form a significant component of seafloor sediment in parts of the Australian-Antarctic Basin where they co-occur with diatom and radiolarian ooze ...
WG3 Central and South Atlantic Region DRAFT
... All of the sub-regions of the Central and South Atlantic are experiencing major environmental changes due to human activity. Rising temperature and atmospheric carbon dioxide are causing ocean warming and acidification in most places. Coastal waters also experience impacts from nearby landmasses and ...
... All of the sub-regions of the Central and South Atlantic are experiencing major environmental changes due to human activity. Rising temperature and atmospheric carbon dioxide are causing ocean warming and acidification in most places. Coastal waters also experience impacts from nearby landmasses and ...
Week 9a
... The term ‘carbonate buffer’ describes how the dissolved inorganic carbon system in seawater acts to diminish changes in ocean [H+] concentration, and thus pH. If a process, such as CO2 dissolution, adds [H+] to seawater, some of the added [H+] reacts with carbonate (CO32–) ion to convert it to bica ...
... The term ‘carbonate buffer’ describes how the dissolved inorganic carbon system in seawater acts to diminish changes in ocean [H+] concentration, and thus pH. If a process, such as CO2 dissolution, adds [H+] to seawater, some of the added [H+] reacts with carbonate (CO32–) ion to convert it to bica ...
Clay Mineral Distribution in Surface Sediments of the
... the Antarctic Ocean were investigated for clay content and composition. Maps of relative clay mineral content were compiled, which improve previous maps by showing more details, especially at high latitudes. Large-scaled relations regarding the origin and transport paths of detrital clay are reveale ...
... the Antarctic Ocean were investigated for clay content and composition. Maps of relative clay mineral content were compiled, which improve previous maps by showing more details, especially at high latitudes. Large-scaled relations regarding the origin and transport paths of detrital clay are reveale ...
Progress in satellite remote sensing for studying physical
... Visible spectrum remote-sensing is commonly used for showing real-time environmental conditions in the media, such as over-head views of hurricanes and weather systems. Such images illustrate the challenges in visible spectrum remote-sensing: clouds, sea mist, or aerosol contamination such as desert ...
... Visible spectrum remote-sensing is commonly used for showing real-time environmental conditions in the media, such as over-head views of hurricanes and weather systems. Such images illustrate the challenges in visible spectrum remote-sensing: clouds, sea mist, or aerosol contamination such as desert ...
EPOC 2014 program - Eastern Pacific Ocean Conference
... carbon (DIC), pH, and aragonite saturation state. The persistence of water with aragonite saturation state <1 on the continental shelf off Washington and Oregon has been previously identified and could have profound ecological consequences for benthic and pelagic calcifying organisms such as mussels ...
... carbon (DIC), pH, and aragonite saturation state. The persistence of water with aragonite saturation state <1 on the continental shelf off Washington and Oregon has been previously identified and could have profound ecological consequences for benthic and pelagic calcifying organisms such as mussels ...
Unit 6
... How can we save our oceans? Treatment of sewage In 1989, the Environmental Protection Department completed the Sewage Strategy Study which developed an overall strategy for the management of sewage. A major part of the strategy was the Strategic Sewage Disposal Scheme which would collect sewage in t ...
... How can we save our oceans? Treatment of sewage In 1989, the Environmental Protection Department completed the Sewage Strategy Study which developed an overall strategy for the management of sewage. A major part of the strategy was the Strategic Sewage Disposal Scheme which would collect sewage in t ...
Vertical nitrate fluxes in the Arctic Ocean
... sink and thus exports essential nutrients to depth. This flux is called export production. In this way, the world ocean is partitioned into a photic, nutrient poor surface layer and the aphotic, nutrient rich deeper layers. Without any further exchange processes between these two pools, nutrients wo ...
... sink and thus exports essential nutrients to depth. This flux is called export production. In this way, the world ocean is partitioned into a photic, nutrient poor surface layer and the aphotic, nutrient rich deeper layers. Without any further exchange processes between these two pools, nutrients wo ...
Why monitor the Arctic Ocean? - UNESDOC
... Sea ice conditions may become more changeable and hazardous with a warming Arctic, with an increase in mobile free-floating ice. Long-term projections of ice conditions are needed for designating arctic shipping routes, while forecasts and real-time reports are needed to guide individual journeys. Tr ...
... Sea ice conditions may become more changeable and hazardous with a warming Arctic, with an increase in mobile free-floating ice. Long-term projections of ice conditions are needed for designating arctic shipping routes, while forecasts and real-time reports are needed to guide individual journeys. Tr ...
An Indian Ocean Observing Strategy
... Mediterranean or the North Sea. Oceanic and coastal circulations also actively transport pollutants across geopolitical boundaries, with sources and impacts separated on various space and time scales. This leads to the growing recognition that it is impossible, politically, logistically and economic ...
... Mediterranean or the North Sea. Oceanic and coastal circulations also actively transport pollutants across geopolitical boundaries, with sources and impacts separated on various space and time scales. This leads to the growing recognition that it is impossible, politically, logistically and economic ...
Simulations of the mid-Pliocene Warm Period using two versions of
... model, in this case the Russell ocean model. The physics and parameterisations of the model are described in Schmidt et al. (2006) and updates for AR5 are being described in Schmidt et al. (2012, 2013). The most recent documentation is also available through the NASA/GISS website. This model is part ...
... model, in this case the Russell ocean model. The physics and parameterisations of the model are described in Schmidt et al. (2006) and updates for AR5 are being described in Schmidt et al. (2012, 2013). The most recent documentation is also available through the NASA/GISS website. This model is part ...
Group worksheets Task 3
... Many, many years later and snow and ice have been falling on the mountains. The snow and ice compacts to become a cold, iceblue glacier. The glacier gradually pushes through the tall, snowcapped mountain range, two inches a year, and erodes it into a Ushaped valley. The glacier moves earth and bould ...
... Many, many years later and snow and ice have been falling on the mountains. The snow and ice compacts to become a cold, iceblue glacier. The glacier gradually pushes through the tall, snowcapped mountain range, two inches a year, and erodes it into a Ushaped valley. The glacier moves earth and bould ...
What are Phytoplankton?
... into chemical energy. They consume carbon dioxide, and release oxygen. All phytoplankton photosynthesize, but some get additional energy by consuming other organisms. Phytoplankton growth depends on the availability of carbon dioxide, sunlight, and nutrients. Phytoplankton, like land plants, require ...
... into chemical energy. They consume carbon dioxide, and release oxygen. All phytoplankton photosynthesize, but some get additional energy by consuming other organisms. Phytoplankton growth depends on the availability of carbon dioxide, sunlight, and nutrients. Phytoplankton, like land plants, require ...
1 2 Fifteen years of ocean observations with the global Argo array 3
... It is apparent from this report that the recent expansion of the ocean observing system clearly sets AR5 apart ...
... It is apparent from this report that the recent expansion of the ocean observing system clearly sets AR5 apart ...
Double-Diffusive Convection and Interleaving in the Arctic Ocean
... Beneath its ice cover the Arctic Ocean is a low energy environment. The weak turbulent activity allows other, more esoteric mixing mechanisms to become important in transforming the water masses. One such process is double-diffusive convection, which is triggered by the different molecular diffusion ...
... Beneath its ice cover the Arctic Ocean is a low energy environment. The weak turbulent activity allows other, more esoteric mixing mechanisms to become important in transforming the water masses. One such process is double-diffusive convection, which is triggered by the different molecular diffusion ...
Fifteen years of ocean observations with the global Argo array
... It is apparent from this report that the recent expansion of the ocean observing system clearly sets AR5 apart ...
... It is apparent from this report that the recent expansion of the ocean observing system clearly sets AR5 apart ...
Acidification of the Coastal Ocean: Are deep waters of the... pteropods?
... Thecosome pteropods are a group of aragonite shell-forming zooplankton that may be among the first pelagic organisms to experience the consequences of ΩA undersaturation in the GoME (Fig. 1). Limacina retroversa is an important pteropod species in ΩA > 1 ΩA = 1 ΩA < 1 temperate latitudes of the Nort ...
... Thecosome pteropods are a group of aragonite shell-forming zooplankton that may be among the first pelagic organisms to experience the consequences of ΩA undersaturation in the GoME (Fig. 1). Limacina retroversa is an important pteropod species in ΩA > 1 ΩA = 1 ΩA < 1 temperate latitudes of the Nort ...
Marine snow storms: Assessing the - Research Online
... Scientists have examined the relationship between ocean fertilization and ocean acidification concluding from one set of experiments, using a global ocean carbon cycle model and investigating the maximum potential effect of ocean fertilization on ocean carbonate chemistry, that with fixed emissions ...
... Scientists have examined the relationship between ocean fertilization and ocean acidification concluding from one set of experiments, using a global ocean carbon cycle model and investigating the maximum potential effect of ocean fertilization on ocean carbonate chemistry, that with fixed emissions ...
Southern Ocean
The Southern Ocean, also known as the Antarctic Ocean or the Austral Ocean, comprises the southernmost waters of the World Ocean, generally taken to be south of 60° S latitude and encircling Antarctica. As such, it is regarded as the fourth-largest of the five principal oceanic divisions: smaller than the Pacific, Atlantic, and Indian Oceans but larger than the Arctic Ocean. This ocean zone is where cold, northward flowing waters from the Antarctic mix with warmer subantarctic waters.By way of his voyages in the 1770s, Captain James Cook proved that waters encompassed the southern latitudes of the globe. Since then, geographers have disagreed on the Southern Ocean's northern boundary or even existence, considering the waters part of the Pacific, Atlantic, and Indian Oceans instead. This remains the current official policy of the International Hydrographic Organization (IHO), since a 2000 revision of its definitions including the Southern Ocean as the waters south of the 60th parallel has not yet been adopted. Others regard the seasonally-fluctuating Antarctic Convergence as the natural boundary.