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Molloy Hole
The Molloy Deep (also known as the Molloy Hole) is a bathymetric feature in the Fram Strait, within the Greenland Sea east of Greenland and about 160 km west of Svalbard. It is the location of the deepest point in the Arctic Ocean. The Molloy Deep, Molloy Hole, Molloy Fracture Zone, and Molloy Ridge were named after Arthur E. Molloy, a U.S. Navy research scientist who worked in the North Atlantic, North Pacific and Arctic Oceans in the 1950s-1970s. The outer rim of the trench is at a depth of and contains about 600 km2 inside the rim, descending to approximately at its greatest depth. The basin floor measures about 220 km2, and is the deepest point in the Arctic Ocean. The first and only person to have reached the bottom of the Molloy Deep is American explorer Victor Vescovo, as part of his Five Deeps Expedition. Topography The Molloy Deep is a roughly rectangular, seismically active, extensional, sea-floor basin, that lies between the northwestern tip of the Mollo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bathymetry
Bathymetry (; ) is the study of underwater depth of ocean floors (''seabed topography''), lake floors, or river floors. In other words, bathymetry is the underwater equivalent to hypsometry or topography. The first recorded evidence of water depth measurements are from Ancient Egypt over 3000 years ago. Bathymetric (or hydrographic) charts are typically produced to support safety of surface or sub-surface navigation, and usually show seafloor relief or terrain as contour lines (called depth contours or isobaths) and selected depths ('' soundings''), and typically also provide surface navigational information. Bathymetric maps (a more general term where navigational safety is not a concern) may also use a Digital Terrain Model and artificial illumination techniques to illustrate the depths being portrayed. The global bathymetry is sometimes combined with topography data to yield a global relief model. Paleobathymetry is the study of past underwater depths. Seabed topography ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fram Strait
The Fram Strait is the passage between Greenland and Svalbard, located roughly between 77°N and 81°N latitudes and centered on the prime meridian. The Greenland and Norwegian Seas lie south of Fram Strait, while the Nansen Basin of the Arctic Ocean lies to the north. Fram Strait is noted for being the only deep connection between the Arctic Ocean and the World Oceans. The dominant oceanographic features of the region are the West Spitsbergen Current on the east side of the strait and the East Greenland Current on the west. Description Fram Strait is the northernmost ocean area having ice-free conditions throughout the year. The width of the strait is about 450 km, but because of the wide continental shelves of Greenland and Spitsbergen, the deep portion of Fram Strait is only about 300 km wide. The ocean over the Greenland continental shelf is often covered with ice. Within Fram Strait, the sill connecting the Arctic and Fram Strait is 2545 m deep. The Knipo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greenland Sea
The Greenland Sea is a body of water that borders Greenland to the west, the Svalbard archipelago to the east, Fram Strait and the Arctic Ocean to the north, and the Norwegian Sea and Iceland to the south. The Greenland Sea is often defined as part of the Arctic Ocean, sometimes as part of the Atlantic Ocean. However, definitions of the Arctic Ocean and its seas tend to be imprecise or arbitrary. In general usage the term "Arctic Ocean" would exclude the Greenland Sea. In oceanographic studies the Greenland Sea is considered part of the Nordic Seas, along with the Norwegian Sea. The Nordic Seas are the main connection between the Arctic and Atlantic oceans and, as such, could be of great significance in a possible shutdown of thermohaline circulation. In oceanography the Arctic Ocean and Nordic Seas are often referred to collectively as the "Arctic Mediterranean Sea", a marginal sea of the Atlantic. The sea has Arctic climate with regular northern winds and temperatures rarely ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Svalbard
Svalbard ( , ), also known as Spitsbergen, or Spitzbergen, is a Norwegian archipelago in the Arctic Ocean. North of mainland Europe, it is about midway between the northern coast of Norway and the North Pole. The islands of the group range from 74° to 81° north latitude, and from 10° to 35° east longitude. The largest island is Spitsbergen, followed by Nordaustlandet and . The largest settlement is Longyearbyen. The islands were first used as a base by the whalers who sailed far north in the 17th and 18th centuries, after which they were abandoned. Coal mining started at the beginning of the 20th century, and several permanent communities were established. The Svalbard Treaty of 1920 recognizes Norwegian sovereignty, and the 1925 Svalbard Act made Svalbard a full part of the Kingdom of Norway. They also established Svalbard as a free economic zone and a demilitarized zone. The Norwegian Store Norske and the Russian remain the only mining companies in place. Res ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Victor Vescovo
Victor Lance Vescovo (born 1966) is an American private equity investor, retired naval officer, space tourist and undersea explorer. He is a co-founder and managing partner of private equity company Insight Equity Holdings. Vescovo achieved the Explorers Grand Slam by reaching the North and South Poles and climbing the Seven Summits, and he then visited the deepest points of all Earth's five oceans during the Five Deeps Expedition of 2018–2019. Early life Vescovo grew up in Dallas, Texas, where he graduated from St. Mark's School of Texas. He earned a bachelor's degree in Economics and Political Science from Stanford University, a master's degree in Defense and Arms Control Studies (Political Science) from the Massachusetts Institute of Technology, and an MBA from Harvard Business School where he was a Baker scholar. Military service Vescovo served 20 years in the U.S. Navy Reserve as an intelligence officer, retiring in 2013 as a Commander (O-5). Five Deeps Expedition ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Five Deeps Expedition
Victor Lance Vescovo (born 1966) is an American private equity investor, retired naval officer, space tourist and undersea explorer. He is a co-founder and managing partner of private equity company Insight Equity Holdings. Vescovo achieved the Explorers Grand Slam by reaching the North and South Poles and climbing the Seven Summits, and he then visited the deepest points of all Earth's five oceans during the Five Deeps Expedition of 2018–2019. Early life Vescovo grew up in Dallas, Texas, where he graduated from St. Mark's School of Texas. He earned a bachelor's degree in Economics and Political Science from Stanford University, a master's degree in Defense and Arms Control Studies (Political Science) from the Massachusetts Institute of Technology, and an MBA from Harvard Business School where he was a Baker scholar. Military service Vescovo served 20 years in the U.S. Navy Reserve as an intelligence officer, retiring in 2013 as a Commander (O-5). Five Deeps Expedition ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gakkel Ridge
The Gakkel Ridge (formerly known as the Nansen Cordillera and Arctic Mid-Ocean Ridge) is a mid-oceanic ridge, a divergent tectonic plate boundary between the North American Plate and the Eurasian Plate. It is located in the Eurasian Basin of the Arctic Ocean, between Greenland and Siberia, and has a length of about 1,800 kilometers (approximately 1,120 miles). Geologically, it connects the northern end of the Mid-Atlantic Ridge with the Laptev Sea Rift. The existence and approximate location of the Gakkel Ridge were predicted by Soviet polar explorer Yakov Yakovlevich Gakkel, and confirmed on Soviet expeditions in the Arctic around 1950. The Ridge is named after him, and the name was recognized in April 1987 by SCUFN (under that body's old name, the Sub-Committee on Geographical Names and Nomenclature of Ocean Bottom Features). The ridge is the slowest known spreading ridge on earth, with a rate of less than one centimeter per year. Until 1999, it was believed to be non-volcani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limiting Factor To Be Prepared For A Dive Into The Atlantic Ocean
In electronics, a limiter is a circuit that allows signals below a specified input power or level to pass unaffected while attenuating (lowering) the peaks of stronger signals that exceed this threshold. Limiting is a type of dynamic range compression. Clipping is an extreme version of limiting. Limiting is any process by which the amplitude of a signal is prevented from exceeding a predetermined value. Limiters are common as a safety device in live sound and broadcast applications to prevent sudden volume peaks from occurring. Limiters are also used as protective features in some components of sound reinforcement systems (e.g., powered mixing boards and power amplifiers) and in some bass amplifiers, to prevent unwanted distortion or loudspeaker damage. Types Limiting can refer to a range of treatments designed to limit the maximum level of a signal. Treatments in order of decreasing severity range from clipping, in which a signal is passed through normally but sheared off whe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USNS Hayes (T-AGOR-16)
USNS ''Hayes'' (T-AGOR-16/T-AG-195) was a ''Hayes''-class oceanographic research ship acquired by the U.S. Navy in 1971. In 1992 she was reconfigured as an acoustics research ship and assigned to the Navy's program of acoustic noise reduction for submarines. Built at Seattle, Washington ''Hayes'' was built in Seattle, Washington, by Todd Shipyards, Corp., and was laid down on 12 November 1969 and launched on 2 July 1970. She was named after Dr. Harvey C. Hayes, a pioneer in underwater acoustics and the former head of the US Navy Sound Division of Naval Research Laboratory. She was delivered to the Navy 21 July 1971 and placed in service by the Military Sealift Command (MSC) as USNS ''Hayes'' (T-AGOR-16). After completing service with the MSC, she was placed into Ready Reserve 10 June 1983. In 1984 ''Hayes'' was laid up in the National Defense Reserve Fleet, James River, Fort Eustis, Virginia. Conversion to acoustics research ship ''Hayes'' was reacquired by the Navy during f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triton Submarines
Triton Submarines is a Florida-based company that designs and manufactures private submersibles for research, filming, deep-ocean exploration, and the luxury yachting and tourism sector. It was founded in 2007. History In 2017, Triton announced an ultra-luxury submersible in collaboration with Aston Martin called Project Neptune. Utilizing the Triton 1650/3 Low Profile submersible as its certified platform, and sharing design language with the Aston Martin Valkyrie hyper-car, the Project Neptune submersible features an exclusive interior, improved hydrodynamics, and extra powerful thrusters for increased speed and maneuverability. As of 2019, DSV ''Limiting Factor'', a Triton 36000/2 Full Ocean Depth (FOD) model operated by Victor Vescovo, holds the record for deepest crewed descent (to the revised depth of ±, in the Challenger Deep). Between 28 April and 4 May 2019 the DSV ''Limiting Factor'' completed four crewed dives to the bottom of Challenger Deep and became the first c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USNS Indomitable (T-AGOS-7)
USNS ''Indomitable'' (T-AGOS-7) was a United States Navy in service from 1985 to 2002. From 2003 until 18 June 2014, she was in commission in the National Oceanic and Atmospheric Administration (NOAA) as the oceanographic research ship NOAAS ''McArthur II'' (R 330). As of 2018 it serves as a mother ship now named the Deep Submersible Support Vessel (DSSV) ''Pressure Drop'' for the crewed deep-ocean research submersible DSV ''Limiting Factor''. Construction ''Indomitable'' was laid down by the Tacoma Boatbuilding Company at Tacoma, Washington on 26 January 1985 and launched on 16 July 1985. She was delivered to the U.S. Navy on 26 November 1985 and placed in non- commissioned service in the U.S. Navys Military Sealift Command on 1 December 1985 as USNS ''Indomitable'' (T-AGOS-7), a United States Naval Ship with a mixed crew of U.S. Navy personnel and civilian merchant mariners. U.S. Navy service ''Stalwart''-class ships were designed to collect underwater acoustical da ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CTD (instrument)
''For information about the CTD-rosette equipment package as a whole, see: Rosette sampler'' A CTD or sonde is an oceanography instrument used to measure the electrical conductivity, temperature, and pressure of seawater (the D stands for "depth," which is closely related to pressure). Conductivity is used to determine salinity. The CTD may be incorporated into an array of Niskin bottles referred to as a carousel or rosette. The sampling bottles close at predefined depths, triggered either manually or by a computer, and the water samples may subsequently be analyzed further for biological and chemical parameters. The CTD may also be used for the calibration of sensors. Measured properties The instrument is a cluster of sensors which measure conductivity, temperature, and pressure. Sensors commonly scan at a rate of 24 Hz. Depth measurements are derived from measurement of hydrostatic pressure, and salinity is measured from electrical conductivity. Sensors are arranged ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
