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Koyna Dam
The Koyna Dam is one of the largest dams in Maharashtra, India. It is a rubble-concrete dam constructed on Koyna River which rises in Mahabaleshwar, a hillstation in Sahyadri ranges. It is located in Koyna Nagar, Satara district, in the Western Ghats on the state highway between Chiplun (44 KM) and Karad (58 KM). Details The main purpose of the dam is hydroelectricity with some irrigation in neighboring areas. Today the Koyna Hydroelectric Project is the second largest completed hydroelectric power plant in India having a total installed capacity of . Due to its electricity generating potential, Koyna river is considered as the 'life line of Maharashtra'. The spillway of the dam is located at the center. It has 6 radial gates. The dam plays a vital role of flood controlling in monsoon season. The catchment area dams the Koyna river and forms the Shivasagar Lake which is approximately in length. It is one of the largest civil engineering projects commissioned after Indi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2021 Maharashtra Floods
A series of floods took place across the Indian State of Maharashtra in 2021. , around 251 people have died and over 100 are still missing due to floods and landslides. 13 districts have been affected in western Maharashtra. Damage was calculated to be Rs4,000crore (US$539million). The flood was part of a series of tightly clustered extreme weather events in July 2021, including extreme rain events in Henan, China and Europe and is part of an increase in rain events during the Indian monsoon season caused by climate change. History and climate change Starting on 22 July 2021, Maharashtra saw heavy rainfall in many of its western districts. On 23 July 2021, NDTV reported that Maharashtra saw the highest in the month of July in 40 years. Climate change could have played an important role in causing large-scale floods across Maharashtra. The observed data shows a three-fold rise in widespread extreme rainfall events across India, including those regions where the floods occ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Koyna Hydroelectric Project
The Koyna Hydroelectric Project is the List of power stations in India, largest hydroelectricity, hydroelectric power plant in India. It is a complex project with four dams including the largest dam on the Koyna River, Maharashtra, hence the name Koyna Hydroelectric Project. The project site is in Satara district. The Koyana Dam situated near Koyananagar village. On river Koyana. The total capacity of the project is . The project consists of four stages of power generation. All the Electric generator, generators are located in underground powerhouses excavated deep inside the mountains of the Western Ghats. A dam foot power station, powerhouse also contributes to the electricity generation. Due to the project's electricity generating potential the Koyna River is considered as the life line of Maharashtra. The project takes advantage of the height of Western Ghats. Thus a very large hydraulic head is available over a very short distance. History In the early 20th century, there ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reservoir
A reservoir (; ) is an enlarged lake behind a dam, usually built to water storage, store fresh water, often doubling for hydroelectric power generation. Reservoirs are created by controlling a watercourse that drains an existing body of water, interrupting a watercourse to form an Bay, embayment within it, excavating, or building any number of retaining walls or levees to enclose any area to store water. Types Dammed valleys Dammed reservoirs are artificial lakes created and controlled by a dam constructed across a valley and rely on the natural topography to provide most of the basin of the reservoir. These reservoirs can either be ''on-stream reservoirs'', which are located on the original streambed of the downstream river and are filled by stream, creeks, rivers or rainwater that surface runoff, runs off the surrounding forested catchments, or ''off-stream reservoirs'', which receive water diversion, diverted water from a nearby stream or aqueduct (water supply), aq ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemical
A chemical substance is a unique form of matter with constant chemical composition and characteristic properties. Chemical substances may take the form of a single element or chemical compounds. If two or more chemical substances can be combined without reacting, they may form a chemical mixture. If a mixture is separated to isolate one chemical substance to a desired degree, the resulting substance is said to be chemically pure. Chemical substances can exist in several different physical states or phases (e.g. solids, liquids, gases, or plasma) without changing their chemical composition. Substances transition between these phases of matter in response to changes in temperature or pressure. Some chemical substances can be combined or converted into new substances by means of chemical reactions. Chemicals that do not possess this ability are said to be inert. Pure water is an example of a chemical substance, with a constant composition of two hydrogen atoms bonded to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geological
Geology (). is a branch of natural science concerned with the Earth and other astronomical objects, the rocks of which they are composed, and the processes by which they change over time. Modern geology significantly overlaps all other Earth sciences, including hydrology. It is integrated with Earth system science and planetary science. Geology describes the structure of the Earth on and beneath its surface and the processes that have shaped that structure. Geologists study the mineralogical composition of rocks in order to get insight into their history of formation. Geology determines the relative ages of rocks found at a given location; geochemistry (a branch of geology) determines their Geochronology, absolute ages. By combining various petrological, crystallographic, and paleontological tools, geologists are able to chronicle the geological history of the Earth as a whole. One aspect is to demonstrate the age of the Earth. Geology provides evidence for plate tectonics, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Borehole
A borehole is a narrow shaft bored in the ground, either vertically or horizontally. A borehole may be constructed for many different purposes, including the extraction of water ( drilled water well and tube well), other liquids (such as petroleum), or gases (such as natural gas). It may also be part of a geotechnical investigation, environmental site assessment, mineral exploration, temperature measurement, as a pilot hole for installing piers or underground utilities, for geothermal installations, or for underground storage of unwanted substances, e.g. in carbon capture and storage. Importance Engineers and environmental consultants use the term ''borehole'' to collectively describe all of the various types of holes drilled as part of a geotechnical investigation or environmental site assessment (a so-called Phase II ESA). This includes holes advanced to collect soil samples, water samples or rock cores, to advance ''in situ'' sampling equipment, or to install monitor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrostatic
Hydrostatics is the branch of fluid mechanics that studies fluids at hydrostatic equilibrium and "the pressure in a fluid or exerted by a fluid on an immersed body". The word "hydrostatics" is sometimes used to refer specifically to water and other liquids, but more often it includes both gases and liquids, whether compressible or incompressible. It encompasses the study of the conditions under which fluids are at rest in stable equilibrium. It is opposed to ''fluid dynamics'', the study of fluids in motion. Hydrostatics is fundamental to ''hydraulics'', the engineering of equipment for storing, transporting and using fluids. It is also relevant to geophysics and astrophysics (for example, in understanding plate tectonics and the anomalies of the Earth's gravitational field), to meteorology, to medicine (in the context of blood pressure), and many other fields. Hydrostatics offers physical explanations for many phenomena of everyday life, such as why atmospheric pressure ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Disaster
A disaster is an event that causes serious harm to people, buildings, economies, or the environment, and the affected community cannot handle it alone. '' Natural disasters'' like avalanches, floods, earthquakes, and wildfires are caused by natural hazards. ''Human-made disasters'' like oil spills, terrorist attacks and power outages are caused by people. Nowadays, it is hard to separate natural and human-made disasters because human actions can make natural disasters worse. Climate change also affects how often disasters due to extreme weather hazards happen. Disasters usually hit people in developing countries harder than people in wealthy countries. Over 95% of deaths from disasters happen in low-income countries, and those countries lose a lot more money compared to richer countries. For example, the damage from natural disasters is 20 times greater in developing countries than in industrialized countries. This is because low-income countries often do not have well-bu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1967 Koynanagar Earthquake
The 1967 Koynanagar earthquake occurred near Koynanagar town in Maharashtra, India on 11 December local time. The magnitude 6.6 shock hit with a maximum Mercalli intensity of VIII (''Severe''). It occurred near the site of Koyna dam, raising questions about induced seismicity Induced seismicity is typically earthquakes and tremors that are caused by human activity that alters the stresses and strains on Earth's crust. Most induced seismicity is of a low magnitude. A few sites regularly have larger quakes, such as The ..., and claimed at least 177 lives and injured over 2,200. Damage More than 80% of the houses were damaged in Koyana Nagar Township, but it did not cause any major damage to the dam except some cracks which were quickly repaired. There have been several earthquakes of smaller magnitude there since 1967. The earthquake caused a fissure in the ground which spread over a length of . Some geologists believe that the earthquake was due to reservoir-triggered se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earthquake
An earthquakealso called a quake, tremor, or tembloris the shaking of the Earth's surface resulting from a sudden release of energy in the lithosphere that creates seismic waves. Earthquakes can range in intensity, from those so weak they cannot be felt, to those violent enough to propel objects and people into the air, damage critical infrastructure, and wreak destruction across entire cities. The seismic activity of an area is the frequency, type, and size of earthquakes experienced over a particular time. The seismicity at a particular location in the Earth is the average rate of seismic energy release per unit volume. In its most general sense, the word ''earthquake'' is used to describe any seismic event that generates seismic waves. Earthquakes can occur naturally or be induced by human activities, such as mining, fracking, and nuclear weapons testing. The initial point of rupture is called the hypocenter or focus, while the ground level directly above it is the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maharashtra State Electricity Board
Maharashtra State Electricity Board (or MSEB) (Marathi language, Marathi:महाराष्ट्र राज्य विद्युत मंडळ) is a Government of Maharashtra, state government electricity regulation board operating within the state of Maharashtra in India. The MSEB was formed on 20 June 1960 under Section 5 of the Electricity (Supply) Act, 1948. In 1998 it was the second largest electricity generating utility in India after National Thermal Power Corporation. History The company's predecessor was the Bombay Electricity Board which was formed on 6 November 1954 and operated up to 31 March 1957 when it was renamed to Maharashtra State Electricity Board which operated until 19 June 1960. The result of a collaboration between the MSEB and Enron was the Ratnagiri power plant. Restructuring In accordance with Electricity Act 2003 of the Government of India, the Maharashtra State Electricity Board was restructured into 4 companies in 2005. These companies w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
