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Great Wall Of Sand
"Great Wall of Sand" is a name first used in March 2015 by US Admiral Harry Harris, who was commander of the Pacific Fleet, to describe a series of uniquely large-scale land reclamation projects by the People's Republic of China (PRC) in the Spratly Islands area of the South China Sea in the period from late 2013 to late 2016. 2013–2016 Spratlys reclamations In late 2013, the PRC embarked on large scale reclamations at seven locations — in order to strengthen territorial claims to the region demarcated by the " nine-dash line". The artificial islands were created by dredging sand onto reefs which were then concreted to make permanent structures. By the time of the 2015 Shangri-La Dialogue, over of new land had been created. By December 2016 it had reached and "'significant' weapons systems, including anti-aircraft and anti-missile systems" had been installed. The PRC states that the construction is for "improving the working and living conditions of people st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harry B
Harry may refer to: TV shows * ''Harry'' (American TV series), a 1987 American comedy series starring Alan Arkin * ''Harry'' (British TV series), a 1993 BBC drama that ran for two seasons * ''Harry'' (talk show), a 2016 American daytime talk show hosted by Harry Connick Jr. People and fictional characters *Harry (given name), a list of people and fictional characters with the given name *Harry (surname), a list of people with the surname *Dirty Harry (musician) (born 1982), British rock singer who has also used the stage name Harry *Harry Potter (character), the main protagonist in a Harry Potter fictional series by J. K. Rowling Other uses *Harry (derogatory term), derogatory term used in Norway * ''Harry'' (album), a 1969 album by Harry Nilsson *The tunnel used in the Stalag Luft III escape ("The Great Escape") of World War II * ''Harry'' (newspaper), an underground newspaper in Baltimore, Maryland See also *Harrying (laying waste), may refer to the following historical event ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seawall
A seawall (or sea wall) is a form of coastal defense constructed where the sea, and associated coastal processes, impact directly upon the landforms of the coast. The purpose of a seawall is to protect areas of human habitation, conservation and leisure activities from the action of tides, waves, or tsunamis. As seawall is a static feature it will conflict with the dynamic nature of the coast and impede the exchange of sediment between land and sea. Seawall designs factor in local climate, coastal position, wave regime (determined by wave characteristics and effectors), and value (morphological characteristics) of landform. Seawalls are hard engineering shore-based structures which protect the coast from erosion. Various environmental issues may arise from the construction of a seawall, including the disruption of sediment movement and transport patterns. Combined with a high construction cost, this has led to an increasing use of other soft engineering coastal management o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radar
Radar is a detection system that uses radio waves to determine the distance (''ranging''), angle, and radial velocity of objects relative to the site. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain. A radar system consists of a transmitter producing electromagnetic waves in the radio or microwaves domain, a transmitting antenna, a receiving antenna (often the same antenna is used for transmitting and receiving) and a receiver and processor to determine properties of the objects. Radio waves (pulsed or continuous) from the transmitter reflect off the objects and return to the receiver, giving information about the objects' locations and speeds. Radar was developed secretly for military use by several countries in the period before and during World War II. A key development was the cavity magnetron in the United Kingdom, which allowed the creation of relatively small systems with sub-meter resolution. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helipad
A helipad is a landing area or platform for helicopters and powered lift aircraft. While helicopters and powered lift aircraft are able to operate on a variety of relatively flat surfaces, a fabricated helipad provides a clearly marked hard surface away from obstacles where such aircraft can land safely. Larger helipads, intended for use by helicopters and other vertical take-off and landing aircraft (VTOL), may be called ''vertiports.'' An example is Vertiport Chicago, which opened in 2015. Usage Helipads may be located at a heliport or airport where fuel, air traffic control and service facilities for aircraft are available. Most helipads are located remote from populated areas due to sounds, winds, space and cost constraints. However, some skyscrapers maintain a helipad on their roofs in order to accommodate air taxi services. Some basic helipads are built on top of highrise buildings for evacuation in case of a major fire outbreak. Major police departments may use a d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Breakwater (structure)
A breakwater is a permanent structure constructed at a coastal area to protect against tides, currents, waves, and storm surges. Part of a coastal management system, breakwaters are installed to minimize erosion, and to protect anchorages, helping isolate vessels within them from marine hazards such as prop washes and wind-driven waves. A breakwater, also known in some contexts as a jetty, may be connected to land or freestanding, and may contain a walkway or road for vehicle access. On beaches where longshore drift threatens the erosion of beach material, smaller structures on the beach, usually perpendicular to the water's edge, may be installed. Their action on waves and current is intended to slow the longshore drift and discourage mobilisation of beach material. In this usage they are more usually referred to as groynes. Purposes Breakwaters reduce the intensity of wave action in inshore waters and thereby provide safe harbourage. Breakwaters may also be small structu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Channel (geography)
In physical geography, a channel is a type of landform consisting of the outline of a path of relatively shallow and narrow body of water or of other fluids (e.g., lava), most commonly the confine of a river, river delta or strait. The word is cognate to canal, and sometimes takes this form, e.g. the Hood Canal. Formation Channel initiation refers to the site on a mountain slope where water begins to flow between identifiable banks.Bierman, R. B, David R. Montgomery (2014). Key Concepts in Geomorphology. W. H. Freeman and Company Publishers. United States. This site is referred to as the channel head and it marks an important boundary between hillslope processes and fluvial processes. The channel head is the most upslope part of a channel network and is defined by flowing water between defined identifiable banks. A channel head forms as overland flow and/or subsurface flow accumulate to a point where shear stress can overcome erosion resistance of the ground surface. Channel he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cuarteron Reef
Cuarteron Reef, also known as Calderon Reef (Mandarin ; vi, Đá Châu Viên; ms, Terumbu Kalderon, lit=; Calderon Reef; tl, Bahura ng Calderon), is a reef at the east end of the London Reefs in the Spratly Islands of the South China Sea. It is occupied and controlled by China (PRC) (as part of Sansha), and also claimed by the Philippines (as part of Kalayaan), by Vietnam (as part of Truong Sa) and Taiwan (ROC). The reef is long and has an area of (). Geographical features On 12 July 2016, the tribunal of the Permanent Court of Arbitration concluded that Cuarteron Reef contains, within the meaning of Article 121(1) of the Convention, naturally formed areas of land, surrounded by water, which are above water at high tide. However, for purposes of Article 121(3) of the convention, the high-tide features at Cuarteron Reef is rocks that cannot sustain human habitation or economic life of their own and accordingly shall be entitled to 12 nmi of territorial sea measured from i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marine Ecosystem
Marine ecosystems are the largest of Earth's aquatic ecosystems and exist in waters that have a high salt content. These systems contrast with freshwater ecosystems, which have a lower salt content. Marine waters cover more than 70% of the surface of the Earth and account for more than 97% of Earth's water supply and 90% of habitable space on Earth. Seawater has an average salinity of 35 parts per thousand of water. Actual salinity varies among different marine ecosystems. Marine ecosystems can be divided into many zones depending upon water depth and shoreline features. The oceanic zone is the vast open part of the ocean where animals such as whales, sharks, and tuna live. The benthic zone consists of substrates below water where many invertebrates live. The intertidal zone is the area between high and low tides. Other near-shore (neritic) zones can include mudflats, seagrass meadows, mangroves, rocky intertidal systems, salt marshes, coral reefs, lagoons. In the deep water, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subi Reef
Subi Reef, also known as Zamora Reef ( tl, Bahura ng Zamora, lit=Reef of Zamora); Zhubi Reef (Mandarin ); vi, đá Xu Bi, is a reef in the Spratly Islands of the South China Sea located southwest of Philippines' Pag-asa island Thitu Island under the municipality of the Kalayaan Island Group, Palawan province. It is occupied by China (PRC), and claimed by Taiwan (ROC) and Vietnam. According to the claims of the PRC, it currently falls under the ''de facto'' jurisdiction of Nansha islands, Sansha city, Hainan province, China. But under the clauses of the UNCLOS, which the PRC is also a signatory, the international law (if applied) only the Philippines has the maritime rights to exploit its resources or build structures, as it is within the continental shelf (" Extended Continental Shelf") of the coastal country. Topography and features The atoll measures along its longer southwest-northeast axis, and is up to wide. Its total area including the lagoon and rim of the reef meas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mischief Reef
Mischief Reef, also known as Panganiban Reef ( tl, Bahura ng Panganiban); vi, Đá Vành Khăn; also known in Mandarin ;, is a low tide elevation (LTE) reef/atoll surrounding a large lagoon in the SE of Dangerous Ground in the east of the Spratly Islands in the South China Sea. It is located west of Palawan Island of the Philippines. Administratively, it belonged to the Kalayaan Islands municipality of the province of Palawan. Activities by the People's Republic of China (PRC) in the mid-2010s have created a large artificial island on the atoll which has included an approximately runway and associated airfield. Although the reef is well within the Philippines' EEZ and traditional fishing grounds, Mischief Reef has been controlled by the PRC since 1995, and is also claimed by the Republic of China (Taiwan), and Vietnam. The PRC performed various reclamation activities at least two locations on the rim of the atoll in the period from 1995 to 2013, but in the period from the end ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fiery Cross Reef
Fiery Cross Reef, also known as "Northwest Investigator Reef", Mandarin ; Kagitingan Reef ( tl, Bahura ng Kagitingan, lit=Reef of Valor); vi, Đá Chữ Thập, is a militarized reef occupied and controlled by China (PRC) as part of Sansha of Hainan Province and is also claimed by the Republic of China (ROC/Taiwan), the Philippines and Vietnam. The reef was named after the British tea clipper ''Fiery Cross'', which was wrecked on the reef on 4 March 1860. (A later sister ship was also named '' Fiery Cross''). The reef was surveyed by Lieutenant J. W. Reed of , who in 1867 reported it to be one extensive reef, and found the apparent wrecks of ''Fiery Cross'' and ''Meerschaum''. In December 1934 the 'Land and Water Maps Inspection Committee' of the government of the China copied the English name "Fiery Cross Reef" and translated it as 十字火礁 / Shizi huo jiao (literally Fire Cross Reef). This name was published on an official list of names in January 1935. In 1947, it was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
