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Investigator Bank
The Investigator Bank is a submerged bank or sunken atoll in the Union Territory of Lakshadweep, India. It is located to the northeast of Minicoy Island in Lakshadweep. Geography It is located 31 km to the northeast of Minicoy Island in the southern region of the Nine Degree Channel. Its minimum depth is 217 m. Depths in the neighborhood of the bank reach 914 meters. The Investigator Canyon is located north of the Investigator Bank between 17˚45'N, 66˚27'E and 17˚47'N, 66˚10'E.GEBCO Gazeteer of undersea feature names Its lagoon area is . This bank was named in 1886 after wooden paddle hydrographic survey vessel HMS Investigator Nine ships of the Royal Navy have borne the name HMS ''Investigator''. Another was planned, but renamed before being launched. The name ''Investigator'' passed on to the Royal Indian Navy and after India's Independence, to its successor the Indian .... Image gallery File:Map of Lakshadweep-en.svg, Map References External linksProstar S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arabian Sea
The Arabian Sea ( ar, اَلْبَحرْ ٱلْعَرَبِيُّ, Al-Bahr al-ˁArabī) is a region of the northern Indian Ocean bounded on the north by Pakistan, Iran and the Gulf of Oman, on the west by the Gulf of Aden, Guardafui Channel and the Arabian Peninsula, on the southeast by the Laccadive Sea and the Maldives, on the southwest by Somalia, and on the east by India. Its total area is 3,862,000 km2 (1,491,000 sq mi) and its maximum depth is 4,652 meters (15,262 ft). The Gulf of Aden in the west connects the Arabian Sea to the Red Sea through the strait of Bab-el-Mandeb, and the Gulf of Oman is in the northwest, connecting it to the Persian Gulf. Name The sea is named after Arabia, the historic name of the region to the west of the sea. The Arabian Sea's name in Arabic is ; in Persian it is دریای عرب; in Urdu it is بحیرہ عرب; in Hindi it is अरब सागर; in Gujarati it is અરબી સમુદ્ર; in Marathi it is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indian Standard Time
Indian Standard Time (IST), sometimes also called India Standard Time, is the time zone observed throughout India, with a time offset of UTC+05:30. India does not observe daylight saving time or other seasonal adjustments. In military and aviation time, IST is designated E* ("Echo-Star"). It is indicated as Asia/Kolkata in the IANA time zone database. History After Independence in 1947, the Union government established IST as the official time for the whole country, although Kolkata and Mumbai retained their own local time (known as Calcutta Time and Bombay Time) until 1948 and 1955, respectively. The Central observatory was moved from Chennai to a location at Shankargarh Fort in Allahabad district, so that it would be as close to UTC+05:30 as possible. Daylight Saving Time (DST) was used briefly during the China–India War of 1962 and the Indo-Pakistani Wars of 1965 and 1971. Calculation Indian Standard Time is calculated from the clock tower in Mirzapur nearly exa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Undersea Banks Of Lakshadweep
The underwater environment is the region below the surface of, and immersed in, liquid water in a natural or artificial feature (called a body of water), such as an ocean, sea, lake, pond, reservoir, river, canal, or aquifer. Some characteristics of the underwater environment are universal, but many depend on the local situation. Liquid water has been present on Earth for most of the history of the planet. The underwater environment is thought to be the place of the origin of life on Earth, and it remains the ecological region most critical to the support of life and the natural habitat of the majority of living organisms. Several branches of science are dedicated to the study of this environment or specific parts or aspects of it. A number of human activities are conducted in the more accessible parts of the underwater environment. These include research, underwater diving for work or recreation, and underwater warfare with submarines. It is hostile to humans in many ways an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HMS Investigator (1881)
Nine ships of the Royal Navy have borne the name HMS ''Investigator''. Another was planned, but renamed before being launched. The name ''Investigator'' passed on to the Royal Indian Navy and after India's Independence, to its successor the Indian Navy where the lineage of naming survey ships Investigator continues unbroken. * was the mercantile ''Fram'', launched in 1795, that the Royal Navy purchased in 1798 and renamed HMS ''Xenophon'', and then in 1801 converted to a survey ship under the name HMS ''Investigator''. In 1802, under the command of Matthew Flinders, she was the first ship to circumnavigate Australia. The Navy sold her in 1810 and she returned to mercantile service under the name ''Xenophon''. She was probably broken up c.1872. * was a 16-gun survey brig launched in 1811. She was used as a police ship from 1837 and was broken up in 1857. * was a survey sloop purchased in 1823. Her fate is unknown. * was a discovery vessel purchased in 1848 to search for Sir J ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrographic Survey
Hydrographic survey is the science of measurement and description of features which affect maritime navigation, marine construction, dredging, offshore oil exploration/offshore oil drilling and related activities. Strong emphasis is placed on soundings, shorelines, tides, currents, seabed and submerged obstructions that relate to the previously mentioned activities. The term ''hydrography'' is used synonymously to describe ''maritime cartography'', which in the final stages of the hydrographic process uses the raw data collected through hydrographic survey into information usable by the end user. Hydrography is collected under rules which vary depending on the acceptance authority. Traditionally conducted by ships with a sounding line or echo sounding, surveys are increasingly conducted with the aid of aircraft and sophisticated electronic sensor systems in shallow waters. Organizations National and International Maritime Hydrography Hydrographic offices evolved from n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lagoon
A lagoon is a shallow body of water separated from a larger body of water by a narrow landform, such as reefs, barrier islands, barrier peninsulas, or isthmuses. Lagoons are commonly divided into ''coastal lagoons'' (or ''barrier lagoons'') and ''atoll lagoons''. They have also been identified as occurring on mixed-sand and gravel coastlines. There is an overlap between bodies of water classified as coastal lagoons and bodies of water classified as estuaries. Lagoons are common coastal features around many parts of the world. Definition and terminology Lagoons are shallow, often elongated bodies of water separated from a larger body of water by a shallow or exposed shoal, coral reef, or similar feature. Some authorities include fresh water bodies in the definition of "lagoon", while others explicitly restrict "lagoon" to bodies of water with some degree of salinity. The distinction between "lagoon" and "estuary" also varies between authorities. Richard A. Davis Jr. restrict ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nine Degree Channel
The Nine Degree Channel is a channel in the Indian Ocean between the Laccadive Islands of Kalpeni and Suheli Par, and Maliku Atoll (Minicoy Island). These two subgroups of islands, together with the Amindivi Subgroup, form the Indian Union Territory (UT) of Lakshadweep. The Channel is approximately 200 km wide with a depth of 2597 metres. The Investigator Bank is located in the southern region of the channel. It is so named as it lies on the 9-degree line of Latitude, north of the equator. Sea Lane of Strategic Importance The 200 kilometres of the Nine Degree Channel separating Kalpeni and Suheli Par from Minicoy sees the passage of nearly all merchant shipping between Europe, the Middle-East and Western Asia with South-East Asia and the Far-East. See also ; Geostrategic context * Andaman Sea * Bay of Bengal * Arabian Sea * Exclusive economic zone of India India has the 18th-largest exclusive economic zone (EEZ) with a total size of . It includes the Lakshadwe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minicoy Island
Minicoy, locally known as Maliku (), is an island in Lakshadweep, India. Along with Viringili, it is on ''Maliku atoll'', the southernmost atoll of Lakshadweep archipelago. Administratively, it is a census town in the Indian union territory of Lakshadweep. The island is situated 425 km west of Trivandrum, the capital city of Kerala. Etymology Minicoy is known as ''Maliku'' in the local language, Dhivehi, which is also the national and official language of the Republic of Maldives. The language is a descendant of Elu Prakrit and is closely related to the Sinhala language, but not mutually intelligible with it. However, the Lakhshadweep Administration refers to Dhivehi as Mahl. This is due to a misunderstanding on the part of a British civil servant who came to Minicoy in the 1900s during the time of the British Raj. The official asked a local what his language was and he replied "Dhivehi-bas". The official looked confused as he had never heard of this language. Noticing th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atoll
An atoll () is a ring-shaped island, including a coral rim that encircles a lagoon partially or completely. There may be coral islands or cays on the rim. Atolls are located in warm tropical or subtropical oceans and seas where corals can grow. Most of the approximately 440 atolls in the world are in the Pacific Ocean. Two different, well-cited models, the subsidence and antecedent karst models, have been used to explain the development of atolls.Droxler, A.W. and Jorry, S.J., 2021. ''The Origin of Modern Atolls: Challenging Darwin's Deeply Ingrained Theory.'' ''Annual Review of Marine Science'', 13, pp.537-573. According to Charles Darwin's ''subsidence model'', the formation of an atoll is explained by the subsidence of a volcanic island around which a coral fringing reef has formed. Over geologic time, the volcanic island becomes extinct and eroded as it subsides completely beneath the surface of the ocean. As the volcanic island subsides, the coral fringing reef becomes a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bank (topography)
An ocean bank, sometimes referred to as a fishing bank or simply bank, is a part of the seabed that is shallow compared to its surrounding area, such as a shoal or the top of an underwater hill. Somewhat like continental slopes, ocean bank slopes can upwell as tidal and other flows intercept them, sometimes resulting in nutrient-rich currents. Because of this, some large banks, such as Dogger Bank and the Grand Banks of Newfoundland, are among the richest fishing grounds in the world. There are some banks that were reported in the 19th century by navigators, such as Wachusett Reef, whose existence is doubtful. Types Ocean banks may be of volcanic nature. Banks may be carbonate or terrigenous. In tropical areas some banks are submerged atolls. As they are not associated with any landmass, banks have no outside source of sediments. Carbonate banks are typically platforms, rising from the ocean depths, whereas terrigenous banks are elevated sedimentary deposits. Seamounts, by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mahl People
Mahl people refers to an ethnic group of India (i.e., people of Minicoy and migrant communities from Minicoy islands ). They speak the Mahl dialect of Divehi which is a member of the southern group of Indo-Aryan languages. All Mahls are native to Minicoy Island in the Union territory of Lakshadweep History According to local oral tradition, Kamborani and Kohoratukamana, two princesses from the Maldives, came to Minicoy. When they arrived, the Tivaru, who had been living there before, left the island for Sri Lanka. The Kamborani's descendants are the (land- and shipowners) and the descendants of Kohoratukamana are the (captains). The other status-groups are made up of the descendants of their crew.Ellen Kattner, ''The Social Structure of Maliku (Minicoy)'' Traditions like this and linguistic affinities with the Mahl dialect of Divehi spoken in Minicoy and the standard Maldivian dialect, compared with the southern Maldivian dialects in which archaic features are more well-pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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