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Cabled Observatory
A cabled observatory is a seabed oceanographic research platform connected to land by cables that provide power and communication. Observatories are outfitted with a multitude of scientific instruments that can collect many kinds of data from the seafloor and water column. By removing the limitations of undersea power sources and sonar or RF communications, cabled observatories allow persistent study of underwater phenomena. Data from these instruments is relayed to a land station and data networks, such as Ocean Networks Canada, in real time. On-board sensors Cabled observatories have the benefit of high-power cable connections that can support a variety of instrumentation at any time. Such instrumentation can include cameras and microphones that can take high-definition audio and video, standard sensors that measure pressure, temperature, oxygen content, conductivity, turbidity, and chlorophyll-a fluorescence, and custom sensors for specialized purposes. Over 200 instr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Regional Cabled And Endurance Arrays
In geography, regions, otherwise referred to as zones, lands or territories, are areas that are broadly divided by physical characteristics ( physical geography), human impact characteristics ( human geography), and the interaction of humanity and the environment ( environmental geography). Geographic regions and sub-regions are mostly described by their imprecisely defined, and sometimes transitory boundaries, except in human geography, where jurisdiction areas such as national borders are defined in law. Apart from the global continental regions, there are also hydrospheric and atmospheric regions that cover the oceans, and discrete climates above the land and water masses of the planet. The land and water global regions are divided into subregions geographically bounded by large geological features that influence large-scale ecologies, such as plains and features. As a way of describing spatial areas, the concept of regions is important and widely used among the many ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ocean
The ocean (also the sea or the world ocean) is the body of salt water that covers approximately 70.8% of the surface of Earth and contains 97% of Earth's water. An ocean can also refer to any of the large bodies of water into which the world ocean is conventionally divided."Ocean." ''Merriam-Webster.com Dictionary'', Merriam-Webster, [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ocean Observations
The following are considered ocean essential climate variables (ECVs) by the Ocean Observations Panel for Climate (OOPC) that are currently feasible with current observational systems . Ocean climate variables Atmosphere surface * Air Temperature * Precipitation (meteorology) * Evaporation * Air Pressure, sea level pressure (SLP) * Surface radiative fluxes * Surface thermodynamic fluxes * Wind speed and direction * Surface wind stress * Water vapor Ocean surface * Sea surface temperature (SST) * Sea surface salinity (SSS) * Sea level * Sea state * Sea ice * Ocean current * Ocean color (for biological activity) * Carbon dioxide partial pressure (pCO2) Ocean subsurface * Backscatter * Carbon Dioxide * Chlorophyll * Conductivity * Density * Iron * Irradiance * Nutrients ** Nitrate * Methane * Ocean current ** Single Point ** Water Column * Ocean tracers * Oxygen * Phytoplankton * Salinity * Sigma-T * Sound Velocity * Temperature * Turbidity O ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benthic Lander
Benthic landers are observational platforms that sit on the seabed or benthic zone to record physical, chemical or biological activity. The landers are autonomous and have deployment durations from a few days (for biological studies) to several years (for physical oceanography studies). Benthic landers come in a variety of shapes and sizes depending upon the instrumentation they carry, and are typically capable of working at any ocean depth. See also * Marine snow * Mooring (oceanography) *Bottom crawler A bottom crawler is an underwater exploration and recovery vehicle. It is designed to sink to the bottom of a body of water, where it moves about using traction against the bottom with wheels or tracks. It is usually tethered to a surface ship ... References {{ocean-stub Oceanographic instrumentation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mooring (oceanography)
current_meter.html" ;"title="sediment traps and current meter">sediment traps and current meters --> A mooring in oceanography is a collection of devices connected to a wire and anchored on the sea floor. It is the ''Lagrangian and Eulerian specification of the flow field, Eulerian way'' of measuring ocean currents, since a mooring is stationary at a fixed location. In contrast to that, the ''Lagrangian way'' measures the motion of an oceanographic drifter, the Lagrangian drifter. Construction principle The mooring is held up in the water column with various forms of buoyancy such as glass balls and syntactic foam floats. The attached instrumentation is wide-ranging but often includes CTDs (conductivity, temperature depth sensors), current meters (e.g. acoustic Doppler current profilers or deprecated rotor current meters), and biological sensors to measure various parameters. Long-term moorings can be deployed for durations of two years or more, powered with alkaline or lith ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ocean Observatories Initiative
The Ocean Observatories Initiative (OOI) is a National Science Foundation (NSF)br>Major Research Facilitycomposed of a network of science-driven ocean observing platforms and sensors ( ocean observatories) in the Atlantic and Pacific Oceans. This networked infrastructure measures physical, chemical, geological, and biological variables from the seafloor to the sea surface and overlying atmosphere, providing an integrated data collection system on coastal, regional and global scales. OOI's goal is to deliver data and data products for a 25-year-plus time period, enabling a better understanding of ocean environments and critical ocean issues. History As early as 1987, the ocean sciences community began discussions about the science, design concepts, and engineering of ocean research observatories, leading to the formation of the International Ocean Network (ION) in 1993. The ION national committee was formed in 1995 and later expanded into the Dynamics of Earth and Ocean Systems ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liquid Jungle Lab (LJL) Panama
The Liquid Jungle Lab (LJL) is a tropical marine research station on the island of Canales de Tierra on the western coast of Pacific Panamá along a primary marine biological corridor. The LJL research campus was completed in 2004 and is part of a private 3,500 hectare reserve composed of primary forest, mangroves, tide pools, and a rocky inter-tidal zone that transitions into fringing coral reefs. The island laboratory is adjacent to two large coastal bays, Bahia Honda, Veraguas Province and Pixvae Bay, which are important mangrove, estuarine and riparian (stream) habitats. The island and laboratory serve as a strategic base for ecologic research of the Coiba National Park, a UNESCO World Heritage Site and Panama’s largest marine protected area. The tremendous biodiversity of the marine and terrestrial environments surrounding Isla Canales de Tierra allows visiting scientists to conduct multidisciplinary ecologic research in a pristine area and has even inspired a designer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monterey Accelerated Research System
Monterey Accelerated Research System (MARS) is a cabled-based observatory system below the surface of Monterey Bay, developed and managed by the Monterey Bay Aquarium Research Institute. The system, operational since November 10, 2008, incorporates a undersea cable that carries data and power to benthic instrument nodes, AUVs, and various benthic and moored instrumentation. See also *NEPTUNE *VENUS Venus is the second planet from the Sun. It is sometimes called Earth's "sister" or "twin" planet as it is almost as large and has a similar composition. As an interior planet to Earth, Venus (like Mercury) appears in Earth's sky never fa ... References External links OceanPortal information Monterey Bay Oceanography Monterey Bay Aquarium Research projects Underwater work Science and technology in California {{ocean-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biofouling
Biofouling or biological fouling is the accumulation of microorganisms, plants, algae, or small animals where it is not wanted on surfaces such as ship and submarine hulls, devices such as water inlets, pipework, grates, ponds, and rivers that cause degradation to the primary purpose of that item. Such accumulation is referred to as '' epibiosis'' when the host surface is another organism and the relationship is not parasitic. Since biofouling can occur almost anywhere water is present, biofouling poses risks to a wide variety of objects such as boat hulls and equipment, medical devices and membranes, as well as to entire industries, such as paper manufacturing, food processing, underwater construction, and desalination plants. Anti-fouling is the ability of specifically designed materials (such as toxic biocide paints, or non-toxic paints) to remove or prevent biofouling. The buildup of biofouling on marine vessels poses a significant problem. In some instances, the hull struc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mooring
A mooring is any permanent structure to which a vessel may be secured. Examples include quays, wharfs, jetties, piers, anchor buoys, and mooring buoys. A ship is secured to a mooring to forestall free movement of the ship on the water. An ''anchor mooring'' fixes a vessel's position relative to a point on the bottom of a waterway without connecting the vessel to shore. As a verb, ''mooring'' refers to the act of attaching a vessel to a mooring. The term likely stems from the Dutch verb ''meren'' (to ''moor''), used in English since the end of the 15th century. Permanent anchor mooring These moorings are used instead of temporary anchors because they have considerably more holding power, for example because of lesser damage to the marine environment, and are convenient. Where there is a row of moorings they are termed a tier. They are also occasionally used to hold floating docks in place. There are several kinds of moorings: Swing moorings Swing moorings also known a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Climate Change
In common usage, climate change describes global warming—the ongoing increase in global average temperature—and its effects on Earth's climate system. Climate change in a broader sense also includes previous long-term changes to Earth's climate. The current rise in global average temperature is more rapid than previous changes, and is primarily caused by humans burning fossil fuels. Fossil fuel use, deforestation, and some agricultural and industrial practices increase greenhouse gases, notably carbon dioxide and methane. Greenhouse gases absorb some of the heat that the Earth radiates after it warms from sunlight. Larger amounts of these gases trap more heat in Earth's lower atmosphere, causing global warming. Due to climate change, deserts are expanding, while heat waves and wildfires are becoming more common. Increased warming in the Arctic has contributed to melting permafrost, glacial retreat and sea ice loss. Higher temperatures are also causing m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biosphere
The biosphere (from Greek βίος ''bíos'' "life" and σφαῖρα ''sphaira'' "sphere"), also known as the ecosphere (from Greek οἶκος ''oîkos'' "environment" and σφαῖρα), is the worldwide sum of all ecosystems. It can also be termed the zone of life on Earth. The biosphere (which is technically a spherical shell) is virtually a closed system with regard to matter, with minimal inputs and outputs. With regard to energy, it is an open system, with photosynthesis capturing solar energy at a rate of around 130 terawatts per year. However it is a self-regulating system close to energetic equilibrium."Biosphere" in ''The Columbia Encyclopedia'', 6th ed. (2004) Columbia University Press. By the most general [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
