Chapter 2 - Department of Environment, Land, Water and Planning
... to ensure optimum weather conditions existed prior to the registration of imagery. Only images registered between mid-October and April were chosen to take advantage of sun angles greater than 45o. The weather pattern for the previous three days was then examined from the Bureau of Meteorology data ...
... to ensure optimum weather conditions existed prior to the registration of imagery. Only images registered between mid-October and April were chosen to take advantage of sun angles greater than 45o. The weather pattern for the previous three days was then examined from the Bureau of Meteorology data ...
research agenda 2025
... of sub-sea permafrost that are vulnerable to warming. Given that huge amounts of organic carbon and gas hydrates are stored in the upper permafrost layer, thawing could release large amounts of greenhouse gases into the atmosphere, further amplifying global warming. A continuing focus of GEOMAR’s re ...
... of sub-sea permafrost that are vulnerable to warming. Given that huge amounts of organic carbon and gas hydrates are stored in the upper permafrost layer, thawing could release large amounts of greenhouse gases into the atmosphere, further amplifying global warming. A continuing focus of GEOMAR’s re ...
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... “snapshots”: an algal reconnaissance in 1996 (N. Daschbach, unpublished data, 1996), and a rapid assessment survey for fish and coral in 1998 (Green et al., 1999). Therefore, two primary surveying objectives during the 2001 mission were to obtain: (1) complete topographic coverage of the seafloor vi ...
... “snapshots”: an algal reconnaissance in 1996 (N. Daschbach, unpublished data, 1996), and a rapid assessment survey for fish and coral in 1998 (Green et al., 1999). Therefore, two primary surveying objectives during the 2001 mission were to obtain: (1) complete topographic coverage of the seafloor vi ...
Chapter 09 - Water: A Physically Unique Molecule
... The relatively warm, low-density surface waters are separated from cool, high-density deep waters by the thermocline, the zone in which temperature changes rapidly with depth. The top of the thermocline varies with season, weather, currents, and other conditions. It depends in part on the amou ...
... The relatively warm, low-density surface waters are separated from cool, high-density deep waters by the thermocline, the zone in which temperature changes rapidly with depth. The top of the thermocline varies with season, weather, currents, and other conditions. It depends in part on the amou ...
Vertical nitrate fluxes in the Arctic Ocean
... The growth of marine phytoplankton is confined to the uppermost layer of the ocean called the euphotic zone. Organic matter has a tendency to 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 ...
... The growth of marine phytoplankton is confined to the uppermost layer of the ocean called the euphotic zone. Organic matter has a tendency to 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 ...
reasssement of the photosynthetic quotient
... huxleyi (PQ = 1. 2) and Peridiniwn trochoidem (PQ = 1 . 1). Although it is recognised that the PQ values for marine phytoplankton may range from 1 . 0 to 1 . 6 (Strickland, 1965; Parsons et al., 1977), for reasons which never seemed to have been discussed, a value in the region of 1. 25 is regarded ...
... huxleyi (PQ = 1. 2) and Peridiniwn trochoidem (PQ = 1 . 1). Although it is recognised that the PQ values for marine phytoplankton may range from 1 . 0 to 1 . 6 (Strickland, 1965; Parsons et al., 1977), for reasons which never seemed to have been discussed, a value in the region of 1. 25 is regarded ...
The Oregon Nearshore Research Inventory project
... research institutions identified during key informant discussions as the basis for the search. Two criteria were used as filters for research to be included in the NRI in order to keep the project relevant for the MSP process: (1) the research must be repeated in a particular geographic space, and (2) ...
... research institutions identified during key informant discussions as the basis for the search. Two criteria were used as filters for research to be included in the NRI in order to keep the project relevant for the MSP process: (1) the research must be repeated in a particular geographic space, and (2) ...
3. deep-sea ecosystems: pristine biodiversity reservoir and
... where physical and biological processes remained unchanged over short and long time scales. There is now evidence that physical disturbances occur at abyssal plains, causing important biological responses. For example, there are daily and annual tidal variations in the flow of cold dense water close ...
... where physical and biological processes remained unchanged over short and long time scales. There is now evidence that physical disturbances occur at abyssal plains, causing important biological responses. For example, there are daily and annual tidal variations in the flow of cold dense water close ...
The footprint of the desalination processes on the
... are suitable only to areas that are rich in cheap fuel. The cost of energy is the main production expense in desalination plants (excluding the amortization) and the process of reserve osmosis (RO) is the most efficient desalination process both in terms of energy and costs [5,6]. For this and other ...
... are suitable only to areas that are rich in cheap fuel. The cost of energy is the main production expense in desalination plants (excluding the amortization) and the process of reserve osmosis (RO) is the most efficient desalination process both in terms of energy and costs [5,6]. For this and other ...
Radionuclides in deep-sea fish and other
... The release of anthropogenic radionuclides into the marine environment has also caused changes in the exposure of marine biota to ionizing radiation. The assessment of absorbed radiation doses from internal and external radioactive sources of anthropogenic and naturally occurring radionuclides indic ...
... The release of anthropogenic radionuclides into the marine environment has also caused changes in the exposure of marine biota to ionizing radiation. The assessment of absorbed radiation doses from internal and external radioactive sources of anthropogenic and naturally occurring radionuclides indic ...
The Marine Debris Research, Prevention and Reduction Act: A
... and transportation to the global human community, they represent a significant part of the world’s economy. Unfortunately, certain human activities are imperiling the health of the oceans. The wide scale dumping of waste, primarily plastics, is one of these threats. Marine debris is generally unders ...
... and transportation to the global human community, they represent a significant part of the world’s economy. Unfortunately, certain human activities are imperiling the health of the oceans. The wide scale dumping of waste, primarily plastics, is one of these threats. Marine debris is generally unders ...
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... Additionally, winds and atmospheric circulation are highly effective at transporting water vapor, either away from an area as it evaporates, or bringing it to an area in moisture-laden air masses which yield precipitation. Thus, it is important to understand the forces driving the circulation of Ear ...
... Additionally, winds and atmospheric circulation are highly effective at transporting water vapor, either away from an area as it evaporates, or bringing it to an area in moisture-laden air masses which yield precipitation. Thus, it is important to understand the forces driving the circulation of Ear ...
MOON Science and Strategy plan
... will create new ‘sea highways’ with higher risks of accidental discharges. Other contaminants could be already affecting the open ocean areas but there is not obvious monitoring of such pollution at the moment and probably it needs to be developed. The land derived contaminant arrive to the sea thro ...
... will create new ‘sea highways’ with higher risks of accidental discharges. Other contaminants could be already affecting the open ocean areas but there is not obvious monitoring of such pollution at the moment and probably it needs to be developed. The land derived contaminant arrive to the sea thro ...
University of Groningen von Liebig`s Law of the Minimum and
... For example, from the chemical perspective, the cycling of nitrogen alone involves many coexisting chemical species, including nitrate, nitrite, N2, ammonia, urea, various amines and dissolved amino acids. Each of these may serve as a source of nutrient for photosynthesizing plankton organisms. In t ...
... For example, from the chemical perspective, the cycling of nitrogen alone involves many coexisting chemical species, including nitrate, nitrite, N2, ammonia, urea, various amines and dissolved amino acids. Each of these may serve as a source of nutrient for photosynthesizing plankton organisms. In t ...
Amundsen - The Journal of Ocean Technology
... scientific mandate. Built in 1979 at the Burrard Dry Docks in British Columbia, the ship was originally known as the CCGS Sir John Franklin. In June 2002, a proposal submitted by a consortium of Canadian universities and federal agencies to transform the decommissioned Sir John Franklin into a state ...
... scientific mandate. Built in 1979 at the Burrard Dry Docks in British Columbia, the ship was originally known as the CCGS Sir John Franklin. In June 2002, a proposal submitted by a consortium of Canadian universities and federal agencies to transform the decommissioned Sir John Franklin into a state ...
Annual Report (2014) - Marine Research Institute
... warm-water species such as the brown mussel have retracted their distributional range in line with suggested cooling of inshore waters along the south-west coast since the 1980s. Ocean temperature, wind and upwelling data for the Cape Peninsula and south-west coast region pointed to this cooling. Ba ...
... warm-water species such as the brown mussel have retracted their distributional range in line with suggested cooling of inshore waters along the south-west coast since the 1980s. Ocean temperature, wind and upwelling data for the Cape Peninsula and south-west coast region pointed to this cooling. Ba ...
Global linkages and influences - Gateway Antarctica
... the sea water in the Weddell Sea and Ross Sea, and increasing its salinity27 making it super dense and forcing it to the very bottom of the ACC, along abyssal plains.28 Kellogg (1987) states that cryosphere variations is the key influence on the formation of and source areas for AABW and NADW.29 Thi ...
... the sea water in the Weddell Sea and Ross Sea, and increasing its salinity27 making it super dense and forcing it to the very bottom of the ACC, along abyssal plains.28 Kellogg (1987) states that cryosphere variations is the key influence on the formation of and source areas for AABW and NADW.29 Thi ...
Reader Chapter 2 In chapter 2 and 3 you can read more about the
... (Poorly sorted sediments that are ice-transported are called ‘tills’). Water- and windtransported sediments tend to be well sorted, with rounded clasts of uniform size. No water on or in the Earth is completely pure and free from dissolved matter. When this dissolved matter is precipitated from seaw ...
... (Poorly sorted sediments that are ice-transported are called ‘tills’). Water- and windtransported sediments tend to be well sorted, with rounded clasts of uniform size. No water on or in the Earth is completely pure and free from dissolved matter. When this dissolved matter is precipitated from seaw ...
Keeping up with An ocean explorer
... tools and techniques of terrestrial geograprobably tied to El Nino.” Wright says that phy were beginning to find their way into since the area now has marine sanctuary desmarine geography. ignation, the coral growth will continue to Wright describes her current work in GIS be monitored through GIS. ...
... tools and techniques of terrestrial geograprobably tied to El Nino.” Wright says that phy were beginning to find their way into since the area now has marine sanctuary desmarine geography. ignation, the coral growth will continue to Wright describes her current work in GIS be monitored through GIS. ...
Development of Indicators for Arctic Marine
... component of an overarching ecosystem-based monitoring framework that incorporates information regarding terrestrial, freshwater, and marine systems (see Gill and Zockler 2008). The CBMP-MP has several key aspects fundamental to the development of an arctic marine monitoring plan for Canadian waters ...
... component of an overarching ecosystem-based monitoring framework that incorporates information regarding terrestrial, freshwater, and marine systems (see Gill and Zockler 2008). The CBMP-MP has several key aspects fundamental to the development of an arctic marine monitoring plan for Canadian waters ...
Phosphorus cycling in the Sargasso Sea: Investigation
... Our results indicate that the Sargasso Sea is deficient in DIP such that the biological communities are utilizing extracellular enzymes to access the DOP pool. The first line of evidence is observed δ18Op values in the mixed layer (above the thermocline) at most of the stations are significantly l ...
... Our results indicate that the Sargasso Sea is deficient in DIP such that the biological communities are utilizing extracellular enzymes to access the DOP pool. The first line of evidence is observed δ18Op values in the mixed layer (above the thermocline) at most of the stations are significantly l ...
White Paper on National Environmental Management of the Ocean
... and South Africa has lodged further claims under international law to extend its sea bottom rights to certain parts of the continental shelf. It is anticipated that once these claims have been processed they will add an additional 1 137 000 km2 of sea bottom rights to ...
... and South Africa has lodged further claims under international law to extend its sea bottom rights to certain parts of the continental shelf. It is anticipated that once these claims have been processed they will add an additional 1 137 000 km2 of sea bottom rights to ...
Methane in the Gulf – The Oil Spill: Toxic Popsicle or Extinction Event?
... blowout are between 35,000 and 60,000 barrels per day or up to 2.5 million gallons per day. As per July 6, the 77 days of spill could have released 4.6 million barrels or 193 million gallons of oil. This would be equal to 17 Exxon Valdez spills. This volume of oil is now approaching the level of the ...
... blowout are between 35,000 and 60,000 barrels per day or up to 2.5 million gallons per day. As per July 6, the 77 days of spill could have released 4.6 million barrels or 193 million gallons of oil. This would be equal to 17 Exxon Valdez spills. This volume of oil is now approaching the level of the ...
Ecologically or Biologically Significant Marine Areas
... international law, including the United Nations Convention on the Law of the Sea, for areas beyond national jurisdiction, as appropriate. The results of the activities outlined below to be undertaken by the Executive Secretary shall be submitted, after peer-review, as appropriate, for consideration ...
... international law, including the United Nations Convention on the Law of the Sea, for areas beyond national jurisdiction, as appropriate. The results of the activities outlined below to be undertaken by the Executive Secretary shall be submitted, after peer-review, as appropriate, for consideration ...
Modeling Biogeochemical Processes in Marine Ecosystems
... of the available modeling studies fall into this group, for which some examples will be given in the following sections as we classify them below according to their structures. Heuristic models may also be designed to predict responses of the system to both natural variability and human activity (e. ...
... of the available modeling studies fall into this group, for which some examples will be given in the following sections as we classify them below according to their structures. Heuristic models may also be designed to predict responses of the system to both natural variability and human activity (e. ...
Marine pollution
Marine pollution occurs when harmful, or potentially harmful, effects result from the entry into the ocean of chemicals, particles, industrial, agricultural and residential waste, noise, or the spread of invasive organisms. Most sources of marine pollution are land based. The pollution often comes from nonpoint sources such as agricultural runoff, wind-blown debris and dust. Nutrient pollution, a form of water pollution, refers to contamination by excessive inputs of nutrients. It is a primary cause of eutrophication of surface waters, in which excess nutrients, usually nitrogen or phosphorus, stimulate algae growth.Many potentially toxic chemicals adhere to tiny particles which are then taken up by plankton and benthos animals, most of which are either deposit or filter feeders. In this way, the toxins are concentrated upward within ocean food chains. Many particles combine chemically in a manner highly depletive of oxygen, causing estuaries to become anoxic.When pesticides are incorporated into the marine ecosystem, they quickly become absorbed into marine food webs. Once in the food webs, these pesticides can cause mutations, as well as diseases, which can be harmful to humans as well as the entire food web.Toxic metals can also be introduced into marine food webs. These can cause a change to tissue matter, biochemistry, behaviour, reproduction, and suppress growth in marine life. Also, many animal feeds have a high fish meal or fish hydrolysate content. In this way, marine toxins can be transferred to land animals, and appear later in meat and dairy products.