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Valmiki National Park
Valmiki National Park is a Tiger Reserve in the West Champaran District of Bihar, India. It is the only national park in Bihar. Valmiki Tiger Reserve covers , which is 17.4% of the total geographical area of the district. As of 2018, there were 40 tigers in the Reserve. History The extensive forest area of Valmikinagar (formally known as Bhainsa Lotan) was previously owned by the Bettiah Raj and Ramanagar Raj until the early 1950s. It was declared a Wildlife Sanctuary in 1978. Valmiki National Park was established in the year 1990. Total area of the park is about 335.65 Km2. Valmiki Wildlife Sanctuary and National Park is the 18th Tiger Reserve of the country. The Valmiki Tiger Reserve comprises the National Park and the Wildlife Sanctuary. Location It is located in West Champaran which derives its name from two words, Champa and Aranya, meaning forest of Champa trees. Geographically, it is situated between 83°0 50′ and 84°0 10′ E longitude and between 27°0 10′ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bengal Tiger
The Bengal tiger is a population of the '' Panthera tigris tigris'' subspecies. It ranks among the biggest wild cats alive today. It is considered to belong to the world's charismatic megafauna. The tiger is estimated to have been present in the Indian subcontinent since the Late Pleistocene, for about 12,000 to 16,500 years. Today, it is threatened by poaching, loss and fragmentation of habitat, and was estimated at comprising fewer than 2,500 wild individuals by 2011. None of the ''Tiger Conservation Landscapes'' within its range is considered large enough to support an effective population of more than 250 adult individuals. The Bengal tiger's historical range covered the Indus River valley until the early 19th century, almost all of India, Pakistan, southern Nepal, Bangladesh, Bhutan and southwestern China. Today, it inhabits India, Bangladesh, Nepal, Bhutan and southwestern China. India's tiger population was estimated at 2,603–3,346 individuals by 2018. Around 300 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sivalik Hills
The Sivalik Hills, also known as the Shivalik Hills and Churia Hills, are a mountain range of the outer Himalayas that stretches over about from the Indus River eastwards close to the Brahmaputra River, spanning the northern parts of the Indian subcontinent. It is wide with an average elevation of . Between the Teesta and Raidāk Rivers in Assam is a gap of about . "Sivalik" literally means 'tresses of Shiva'. Sivalik region is home to the Soanian archaeological culture. Geology Geologically, the Sivalik Hills belong to the Tertiary deposits of the outer Himalayas. They are chiefly composed of sandstone and conglomerate rock formations, which are the solidified detritus of the Himalayas to their north; they are poorly consolidated. The remnant magnetisation of siltstones and sandstones indicates that they were deposited 16–5.2 million years ago. In Nepal, the Karnali River exposes the oldest part of the Shivalik Hills. They are bounded on the south by a fault syste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
River Gandak
A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of water. Small rivers can be referred to using names such as creek, brook, rivulet, and rill. There are no official definitions for the generic term river as applied to geographic features, although in some countries or communities a stream is defined by its size. Many names for small rivers are specific to geographic location; examples are "run" in some parts of the United States, "burn" in Scotland and northeast England, and "beck" in northern England. Sometimes a river is defined as being larger than a creek, but not always: the language is vague. Rivers are part of the water cycle. Water generally collects in a river from precipitation through a drainage basin from surface runoff and other sources such as groundwater recharge, springs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Contour Line
A contour line (also isoline, isopleth, or isarithm) of a function of two variables is a curve along which the function has a constant value, so that the curve joins points of equal value. It is a plane section of the three-dimensional graph of the function f(x,y) parallel to the (x,y)-plane. More generally, a contour line for a function of two variables is a curve connecting points where the function has the same particular value. In cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. A contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes. The contour interval of a contour map is the difference in elevation between successive contour lines. The gradient of the function is always perpendicular to the contour lines. When the lines are close together the magnitude of the grad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lateritic
Laterite is both a soil and a rock type rich in iron and aluminium and is commonly considered to have formed in hot and wet tropical areas. Nearly all laterites are of rusty-red coloration, because of high iron oxide content. They develop by intensive and prolonged weathering of the underlying parent rock, usually when there are conditions of high temperatures and heavy rainfall with alternate wet and dry periods. Tropical weathering (''laterization'') is a prolonged process of chemical weathering which produces a wide variety in the thickness, grade, chemistry and ore mineralogy of the resulting soils. The majority of the land area containing laterites is between the tropics of Cancer and Capricorn. Laterite has commonly been referred to as a soil type as well as being a rock type. This and further variation in the modes of conceptualizing about laterite (e.g. also as a complete weathering profile or theory about weathering) has led to calls for the term to be abandoned al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Artesian Aquifer
An artesian aquifer is a confined aquifer containing groundwater under positive pressure. An artesian aquifer has trapped water, surrounded by layers of impermeable rock or clay, which apply positive pressure to the water contained within the aquifer. If a well were to be sunk into an artesian aquifer, water in the well-pipe would rise to a height corresponding to the point where hydrostatic equilibrium is reached. A well drilled into such an aquifer is called an ''artesian well''. If water reaches the ground surface under the natural pressure of the aquifer, the well is termed a ''flowing artesian well''. Fossil water aquifers can also be artesian if they are under sufficient pressure from the surrounding rocks, similar to how many newly tapped oil wells are pressurized. From the previous statement, it can be inferred that not all aquifers are artesian (i.e., water table aquifers occur where the groundwater level at the top of the aquifer is at equilibrium with atmosph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alluvium
Alluvium (from Latin ''alluvius'', from ''alluere'' 'to wash against') is loose clay, silt, sand, or gravel that has been deposited by running water in a stream bed, on a floodplain, in an alluvial fan or beach, or in similar settings. Alluvium is also sometimes called alluvial deposit. Alluvium is typically geologically young and is not consolidated into solid rock. Sediments deposited underwater, in seas, estuaries, lakes, or ponds, are not described as alluvium. Floodplain alluvium can be highly fertile, and supported some of the earliest human civilizations. Definitions The present consensus is that "alluvium" refers to loose sediments of all types deposited by running water in floodplains or in alluvial fans or related landforms. However, the meaning of the term has varied considerably since it was first defined in the French dictionary of Antoine Furetière, posthumously published in 1690. Drawing upon concepts from Roman law, Furetière defined ''alluvio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Someshwar Hill
Someshwara or its variant spellings ''Someshwar'', ''Someshvara'' and ''Someshvar'' may refer to: * Soma (deity), a Vedic Hindu deity * Shiva, a Hindu deity People * Someshvara I, 11th century Indian king from the Western Chalukya dynasty * Someshvara II, 11th century Indian king from the Western Chalukya dynasty * Someshvara III, 12th century Indian king from the Western Chalukya dynasty * Someshvara IV, 12th century Indian king from the Western Chalukya dynasty * Someshvara (Chahamana dynasty), 12th century Indian king from the Chahamana dynasty of present-day Rajasthan * Someshvara (Shilahara dynasty), 13th century Indian king from the Shilahara dynasty of Konkan * Someshvara (Hoysala dynasty), 13th century Indian king from the Hoysala dynasty of present-day Karnataka * Someswar Kakoti, 20th century Indian independence activist from Assam Temples * Someshwara Temple, Kolar, Hindu temple in Karnataka * Halasuru Someshwara Temple, Bangalore, Hindu temple in Karnataka * S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bhabar
Bhabar or Bhabhar ( Kumaoni: bhābar) is a region south of the Lower Himalayas and the Sivalik Hills in Kumaon, India, containing some of the largest cities of Kumaon, Haldwani and Ramnagar, both in Nainital District. It is the alluvial apron of sediments washed down from the Sivaliks along the northern edge of the Indo-Gangetic Plain. Etymology The name ''Bhabar'' refers to a local tall-growing grass, ''Eulaliopsis binata'', used for the manufacture of paper and rope. Overview Bhabar plains are located in Kumaon. Bhabar is the gently-sloping coarse alluvial zone below the Sivalik Hills (outermost foothills of the Himalayas) where streams disappear into permeable sediments. The underground water level is deep in this region, then rises to the surface in the Terai below where coarse alluvium gives way to less permeable silt and clay. The Ganges River lies to the west and Sharda to the east. Being at the junction of Himalayas and the Indo-Gangetic Plain, Bhabar contains almost ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gangetic Plains
The Indo-Gangetic Plain, also known as the North Indian River Plain, is a fertile plain encompassing northern regions of the Indian subcontinent, including most of northern and eastern India, around half of Pakistan, virtually all of Bangladesh and southern plains of Nepal. The region is named after the Indus and the Ganges rivers and encompasses a number of large urban areas. The plain is bound on the north by the Himalayas, which feed its numerous rivers and are the source of the fertile alluvium deposited across the region by the two river systems. The southern edge of the plain is marked by the Deccan Plateau. On the west rises the Iranian Plateau. Many developed cities like Delhi, Dhaka, Kolkata, Lahore and Karachi are located in the Indo-Gangetic Plain. History The region is known for the Indus Valley civilization, which was responsible for the birth of ancient culture of the Indian subcontinent. The flat and fertile terrain has facilitated the repeated ri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valleys
A valley is an elongated low area often running between hills or mountains, which will typically contain a river or stream running from one end to the other. Most valleys are formed by erosion of the land surface by rivers or streams over a very long period. Some valleys are formed through erosion by glacial ice. These glaciers may remain present in valleys in high mountains or polar areas. At lower latitudes and altitudes, these glacially formed valleys may have been created or enlarged during ice ages but now are ice-free and occupied by streams or rivers. In desert areas, valleys may be entirely dry or carry a watercourse only rarely. In areas of limestone bedrock, dry valleys may also result from drainage now taking place underground rather than at the surface. Rift valleys arise principally from earth movements, rather than erosion. Many different types of valleys are described by geographers, using terms that may be global in use or else applied only locally. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Streams
A stream is a continuous body of surface water flowing within the bed and banks of a channel. Depending on its location or certain characteristics, a stream may be referred to by a variety of local or regional names. Long large streams are usually called rivers, while smaller, less voluminous and more intermittent streams are known as streamlets, brooks or creeks. The flow of a stream is controlled by three inputs – surface runoff (from precipitation or meltwater), daylighted subterranean water, and surfaced groundwater ( spring water). The surface and subterranean water are highly variable between periods of rainfall. Groundwater, on the other hand, has a relatively constant input and is controlled more by long-term patterns of precipitation. The stream encompasses surface, subsurface and groundwater fluxes that respond to geological, geomorphological, hydrological and biotic controls. Streams are important as conduits in the water cycle, instruments in groundwate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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