Kalbaisakhi
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Kalbaisakhi
A ''kalbaisakhi'' (, ; , ), also known as ''bordoisila'' () and in some English publications as a nor'wester, is a localised rainfall and thunderstorm event which occurs in Bangladesh as well as the Indian states of Bihar, Jharkhand, Odisha, Tripura, Assam, and West Bengal during summer. These storms generally occur in the afternoon or just before sunset, when thick dark black clouds start appearing over the sky and then bring gale-speed wind with torrential rain, often with hail, but spanning only a short period of time. Etymology In Bengali, the term ''kālbôiśākhī'' refers to a "fateful thing" which occurs in the Bengali month of Bôiśākh. The term ''nor'wester'' is more commonly used in English newspapers since these storms travel from northwest to southeast. In Assamese, the event is known as a ''bôrdôisilā'', which is derived from the Bodo word ''bôrdôisikhlā'', in which ''bôr'' means wind, ''dôi'' means water and ''sikhlā'' means girl, represents the god ...
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Derecho
A ''derecho'' (, from , 'straight') is a widespread, long-lived, straight-line wind storm that is associated with a fast-moving group of Severe weather#Categories, severe thunderstorms known as a mesoscale convective system. Derechos cause Beaufort scale, hurricane-force winds, heavy rains, and flash floods. In many cases, convection-induced winds take on a bow echo (backward "C") form of squall line, often forming beneath an area of diverging upper troposphere, tropospheric winds, and in a region of both rich low-level moisture and Thermal wind#Advection turning, warm-air advection. Derechos move rapidly in the direction of movement of their associated storms, similar to an outflow boundary (gust front), except that the wind remains maximum sustained wind, sustained for a greater period of time (often increasing in strength after onset), and may reach tornado- and hurricane-force winds. A derecho-producing convective system may remain active for many hours and, occasionally, ov ...
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West Bengal
West Bengal (; Bengali language, Bengali: , , abbr. WB) is a States and union territories of India, state in the East India, eastern portion of India. It is situated along the Bay of Bengal, along with a population of over 91 million inhabitants within an area of as of 2011. The population estimate as of 2023 is 99,723,000. West Bengal is the List of states and union territories of India by population, fourth-most populous and List of states and union territories of India by area, thirteenth-largest state by area in India, as well as the List of first-level administrative divisions by population, eighth-most populous country subdivision of the world. As a part of the Bengal region of the Indian subcontinent, it borders Bangladesh in the east, and Nepal and Bhutan in the north. It also borders the Indian states of Jharkhand, Odisha, Bihar, Sikkim and Assam. The state capital is Kolkata, the List of metropolitan areas in India, third-largest metropolis, and List of cities in I ...
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Daulatpur–Saturia Tornado
The Daulatpur–Saturia tornado was an intense tornado that occurred in Manikganj District, Bangladesh on April 26, 1989. While it was destructive and extremely deadly, there is great uncertainty about the death toll. Official estimates from the World Meteorological Organization indicate that it killed approximately 1,300 people, which would make it the deadliest tornado in history. In 2022, this tornado's status as the deadliest tornado in history was challenged, claiming it did not kill more than 256 people. The tornado affected the cities of Daulatpur and Saturia the most, moving east through Daulatpur and eventually northeast into Saturia. Previously, the area that the tornado hit had been in a state of drought for six months. Background The Ganges Basin, comprising the entirety of Bangladesh, is frequented by severe weather. Storms that are capable of producing tornadoes in this region are most common during the pre- and post-monsoon months. An average of six tornadoes occ ...
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Chota Nagpur Plateau
The Chota Nagpur Plateau () is a plateau in eastern India, which covers much of Jharkhand state as well as adjacent parts of Chhattisgarh, Odisha, West Bengal and Bihar. The Indo-Gangetic plain lies to the north and east of the plateau, and the basin of the Mahanadi river lies to the south. The total area of the Chota Nagpur Plateau is approximately . Etymology The name ''Nagpur'' is probably taken from Nagvanshi dynasty, Nagavanshis, who ruled in this part of the country. ''Chhota'' (''small'' in Hindi) is the misunderstood name of "Chuita" village in the outskirts of Ranchi, which has the remains of an old fort belonging to the Nagavanshis.John Wardle Houlton, Sir John Houlton, ''Bihar, the Heart of India'', pp. 127–128, Orient Longmans, 1949. Geology Formation The Chota Nagpur Plateau is a continental plateau—an extensive area of land thrust above the general land.The plateau is composed of Precambrian rocks (i.e., rocks more than about 540 million years old). T ...
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Nor'easter
A nor'easter (also northeaster; see below) is a large-scale extratropical cyclone in the western North Atlantic Ocean. The name derives from the direction of the winds that blow from the northeast. Typically, such storms originate as a low-pressure area that forms within of the shore between North Carolina and Massachusetts. The precipitation pattern is similar to that of other extratropical storms, although nor'easters are usually accompanied by heavy rain or snow, and can cause severe coastal flooding, coastal erosion, hurricane-force winds, or blizzard conditions. They tend to develop most often and most powerfully between the months of November and March, because of the difference in temperature between the cold polar air mass coming down from central Canada and the warm ocean waters off the upper East Coast. The susceptible regions—the upper north Atlantic coast of the United States and the Atlantic Provinces of Canada—are generally impacted by nor'easters a ...
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Rabindranath Tagore
Rabindranath Thakur (; anglicised as Rabindranath Tagore ; 7 May 1861 – 7 August 1941) was a Bengalis, Bengali polymath who worked as a poet, writer, playwright, composer, philosopher, social reformer, and painter of the Bengal Renaissance. He reshaped Bengali literature and Music of Bengal, music as well as Indian art with Contextual Modernism in the late 19th and early 20th centuries. He was the author of the "profoundly sensitive, fresh and beautiful" poetry of ''Gitanjali.'' In 1913, Tagore became the first non-European to win a Nobel Prize in any category, and also the first lyricist to win the 1913 Nobel Prize in Literature, Nobel Prize in Literature. Tagore's poetic songs were viewed as spiritual and mercurial; where his elegant prose and magical poetry were widely popular in the Indian subcontinent. He was a fellow of the Royal Asiatic Society of Great Britain and Ireland, Royal Asiatic Society. Referred to as "the Bard of Bengal", Tagore was known by the sobri ...
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Mohitlal Majumdar
Mohitlal Majumdar (Bengali: মোহিতলাল মজুমদার; 26 October 1888 – 26 July 1952) was an Indian poet and essayist in the Bengali-language. He began his journey as a poet, but later became literary critic. Life Majumder was born in a Baidya family on 26 October 1888 in the village of Kanchrapara in Nadia district, India at his maternal uncle's house(Kanchrapara is now in North 24 Parganas district). His native village was Balagarh in Hooghly District of present-day West Bengal. He graduated in arts in 1908 from Ripon College (now Surendranath College), Kolkata. He began his career as a teacher at Calcutta High School in 1908 and continued in this profession until 1928. He also worked briefly as a kanungo (1914-1917) in the Settlement Department. He joined University of Dhaka, now in Bangladesh as a lecturer in the Bengali and Sanskrit Department in 1928 and retired from there in 1944. His present house is in a state of ruin at Chongarbon. Writing ca ...
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Climate Change
Present-day climate change includes both global warming—the ongoing increase in Global surface temperature, global average temperature—and its wider effects on Earth's climate system. Climate variability and change, Climate change in a broader sense also includes previous long-term changes to Earth's climate. The current rise in global temperatures is Scientific consensus on climate change, driven by human activities, especially fossil fuel burning since the Industrial Revolution. Fossil fuel use, Deforestation and climate change, deforestation, and some Greenhouse gas emissions from agriculture, agricultural and Environmental impact of concrete, industrial practices release greenhouse gases. These gases greenhouse effect, absorb some of the heat that the Earth Thermal radiation, radiates after it warms from sunlight, warming the lower atmosphere. Carbon dioxide, the primary gas driving global warming, Carbon dioxide in Earth's atmosphere, has increased in concentratio ...
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Jute
Jute ( ) is a long, rough, shiny bast fibre that can be Spinning (textiles), spun into coarse, strong threads. It is produced from flowering plants in the genus ''Corchorus'', of the mallow family Malvaceae. The primary source of the fiber is ''Corchorus olitorius'', but such fiber is considered inferior to that derived from ''Corchorus capsularis''. Jute fibers, composed primarily of cellulose and lignin, are collected from bast (the phloem of the plant, sometimes called the "skin"). The industrial term for jute fiber is ''raw jute''. The fibers are off-white to brown and range from long. In Bangladesh, jute is called the "golden fiber" for its color and monetary value. The bulk of the jute trade is centered in South Asia, with India and Bangladesh as the primary producers. The majority of jute is used for durable and sustainable packaging, such as Gunny sack, burlap sacks. Its production and usage declined as Disposable product, disposable plastic packaging became common, b ...
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Kharif Crop
Kharif crops, also known as monsoon crops or autumn crops, are domesticated plants that are cultivated and harvested in India, Pakistan and Bangladesh during the Indian subcontinent's monsoon season, which lasts from June to November depending on the area. Monsoon rains may begin as early as May in some parts of the Indian subcontinent, and crops are generally harvested from the third week of September to October. Rice, maize, and cotton are some of the major Kharif crops in India. Unlike the Rabi crops, which are grown in the winter, the kharif crops require good rainfall. Etymology The words ''Kharif'' and '' rabi'' both have their origins in the Arabic via Classical Persian. These came to be used in India with the ascent of the Mughal Empire in the Indian subcontinent and have been widely used ever since. ''Kharif'' means "autumn" in Arabic. The sowing happens during the monsoon and reaping happens close to autumn in the Indian subcontinent; this proximity to the autumn re ...
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