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Cyclone Dana
Severe Cyclonic Storm Dana () was a strong tropical cyclone which affected the states of West Bengal and Odisha in India. The third cyclonic storm and second severe cyclonic storm of the 2024 North Indian Ocean cyclone season, Dana formed from a low pressure area that the Indian Meteorological Department first monitored on October 20. Meteorological history Severe Cyclonic Storm Dana rose from a cyclonic circulation which formed over the Andaman Sea on October 19 from which low pressure area formed in the south Bay of Bengal at 23:30 IST on October 20. It moved northwestwards and formed a well marked low pressure area at 11:30 IST on October 21. It concentrated into a depression at 05:30 IST on October 22, 770 km south-southeast of Sagar Island. At 16:30 IST, Joint Typhoon Warning Centre issued a Tropical Cyclone Formation Alert on the depression. By 17:30 IST, it had consolidated into a deep depression and was 740 km south-southeast of Sagar Island, moving in a we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cold Drop
A cold drop (from the Spanish "gota fría") is a term used in Spain that has commonly come to refer to any high impact rainfall events occurring in the autumn along the Spanish Mediterranean coast. In Europe, cold drops belong to the characteristics of the Mediterranean climate. It is also termed a cutoff low. Occurrence Spain If a sudden cut off in the stream takes place (particularly in the Atlantic Ocean), a pocket of cold air detaches from the main jet stream, penetrating to the south over the Pyrenees into the warm air in Spain, causing its most dramatic effects in the Southeast of Spain, particularly along the Spanish Mediterranean coast, especially in the Valencian Community. The torrential rain caused by cold drop can result in devastation caused by torrents and flash floods. For instance, the great Valencia flood of 1957 was the result of a 3-day-long cold drop. This phenomenon is associated with extremely violent downpours and storms, with wind speeds of 100–200&nbs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Low Pressure Area
In meteorology, a low-pressure area, low area or low is a region where the atmospheric pressure is lower than that of surrounding locations. Low-pressure areas are commonly associated with inclement weather (such as cloudy, windy, with possible rain or storms), while high-pressure areas are associated with lighter winds and clear skies. Winds circle anti-clockwise around lows in the northern hemisphere, and clockwise in the southern hemisphere, due to opposing Coriolis forces. Low-pressure systems form under areas of wind divergence that occur in the upper levels of the atmosphere (aloft). The formation process of a low-pressure area is known as cyclogenesis. In meteorology, atmospheric divergence aloft occurs in two kinds of places: * The first is in the area on the east side of upper troughs, which form half of a Rossby wave within the Westerlies (a trough with large wavelength that extends through the troposphere). * A second is an area where wind divergence aloft occur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropical Cyclone
A tropical cyclone is a rapidly rotating storm system characterized by a low-pressure center, a closed low-level atmospheric circulation, strong winds, and a spiral arrangement of thunderstorms that produce heavy rain and squalls. Depending on its location and strength, a tropical cyclone is referred to by different names, including hurricane (), typhoon (), tropical storm, cyclonic storm, tropical depression, or simply cyclone. A hurricane is a strong tropical cyclone that occurs in the Atlantic Ocean or northeastern Pacific Ocean, and a typhoon occurs in the northwestern Pacific Ocean. In the Indian Ocean, South Pacific, or (rarely) South Atlantic, comparable storms are referred to simply as "tropical cyclones", and such storms in the Indian Ocean can also be called "severe cyclonic storms". "Tropical" refers to the geographical origin of these systems, which form almost exclusively over tropical seas. "Cyclone" refers to their winds moving in a circle, whirling ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subtropical Ridge
The horse latitudes are the latitudes about 30 degrees north and south of the Equator. They are characterized by sunny skies, calm winds, and very little precipitation. They are also known as subtropical ridges, or highs. It is a high-pressure area at the divergence of trade winds and the westerlies. Origin of the term A likely and documented explanation is that the term is derived from the "dead horse" ritual of seamen (see Beating a dead horse). In this practice, the seaman paraded a straw-stuffed effigy of a horse around the deck before throwing it overboard. Seamen were paid partly in advance before a long voyage, and they frequently spent their pay all at once, resulting in a period of time without income. If they got advances from the ship's paymaster, they would incur debt. This period was called the "dead horse" time, and it usually lasted a month or two. The seaman's ceremony was to celebrate having worked off the "dead horse" debt. As west-bound shipping from E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bhadrak
Bhadrak is a city of Odisha state in eastern India. The city is the district headquarters of Bhadrak district. According to legend, the city derives its name from the Goddess Bhadrakali, whose temple is on the banks of the Salandi River. History According to legend, Bhadrak derives its name from the Goddess Bhadrakali, whose temple is situated on the southwest outskirts of the town. It is an ancient land, dating from the age of the Puranas. Bhadrak's contribution to Odisha's maritime and agrarian prosperity, trade, and commerce throughout the ages is a part of history. In the Mughal period, Bhadrak was a subah, or province, under the Nawabs of Bengal. When the imperial power of the Mughals waned, the area consisted of principalities such as Kanika, Nampo, and Agarapada, with administrative sub-units called chowparhies, all ruled by Kshatriya chiefs. After the occupation of Odisha by the British in June 1804, Bhadrak constituted one of the two administrative divisions of Cut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wind Shear
Wind shear (or windshear), sometimes referred to as wind gradient, is a difference in wind speed and/or direction over a relatively short distance in the atmosphere. Atmospheric wind shear is normally described as either vertical or horizontal wind shear. Vertical wind shear is a change in wind speed or direction with a change in altitude. Horizontal wind shear is a change in wind speed with a change in lateral position for a given altitude. Wind shear is a microscale meteorological phenomenon occurring over a very small distance, but it can be associated with mesoscale or synoptic scale weather features such as squall lines and cold fronts. It is commonly observed near microbursts and downbursts caused by thunderstorms, fronts, areas of locally higher low-level winds referred to as low-level jets, near mountains, radiation inversions that occur due to clear skies and calm winds, buildings, wind turbines, and sailboats. Wind shear has significant effects on the contro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anti-cyclone
An anticyclone is a weather phenomenon defined as a large-scale circulation of winds around a central region of high atmospheric pressure, clockwise in the Northern Hemisphere and counterclockwise in the Southern Hemisphere as viewed from above (opposite to a cyclone). Effects of surface-based anticyclones include clearing skies as well as cooler, drier air. Fog can also form overnight within a region of higher pressure. Mid-tropospheric systems, such as the subtropical ridge, deflect tropical cyclones around their periphery and cause a temperature inversion inhibiting free convection near their center, building up surface-based haze under their base. Anticyclones aloft can form within warm-core lows such as tropical cyclones, due to descending cool air from the backside of upper troughs such as polar highs, or from large-scale sinking such as a subtropical ridge. The evolution of an anticyclone depends upon variables such as its size, intensity, and extent of moist convec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dhamra Port
The Dhamra Port is a port in Bhadrak district, Odisha, India, on the shore of the Bay of Bengal about seven kilometres from the old port of Dhamra. The agreement to develop the port was signed in April 1998. The Dhamra Port Company Limited (DPCL) was formed as a result of a 50:50 joint venture between Larsen & Toubro and TATA Steel to run the port. The Port received its first vessel on 8 February 2010 and the first commercial vessel on 10 April 2011. The Port has an initial capacity of 25 million tonnes annually, eventually growing to 80 million tonnes annually. Greenpeace has opposed the project, claiming it threatens nearby protected areas and endangered species such as the olive ridley turtle Objectives The port was taken over by Adani Port in June 2014. Construction of a $12 billion steel plant by Posco of South Korea, and the new port of Dhamara, promise to bring jobs and development. The port will be used to export iron ore from a nearby mineral belt. The Odisha govern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bhitarkanika
Bhitarkanika Mangroves is a mangrove wetland in Odisha, India, covering an area of in the Brahmani River and Baitarani River deltas. History The Bhitarkanika Mangroves were zamindari forests until 1952, when the government of Odisha abolished the zamindari system, and put the zamindari forests in the control of the state forest department. In 1975, an area of was declared the Bhitarkanika Wildlife Sanctuary. The core area of the sanctuary, with an area of , was declared Bhitarkanika National Park in September 1998. The Gahirmatha Marine Wildlife Sanctuary, which bounds the Bhitarkanika Wildlife Sanctuary to the east, was created in September 1997, and encompasses Gahirmatha Beach and an adjacent portion of the Bay of Bengal. Bhitarkanika Mangroves were designated a Ramsar Wetland of International Importance in 2002. Flora and fauna About 62 mangrove species occur in the Bhitarkanika Mangroves, including ''Avicenna'', ''Bruguiera'', ''Heritiera'' and ''Rhizophora''. Repti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Landfall
Landfall is the event of a storm moving over land after being over water. More broadly, and in relation to human travel, it refers to 'the first land that is reached or seen at the end of a journey across the sea or through the air, or the fact of arriving there. Tropical cyclone A tropical cyclone is classified as making landfall when the center of the storm moves across the coast; in a relatively strong tropical cyclone, this is when the eye moves over land. This is where most of the damage occurs within a mature tropical cyclone, such as a typhoon or hurricane, as most of the damaging aspects of these systems are concentrated near the eyewall. Such effects include the peaking of the storm surge, the core of strong winds coming ashore, and heavy flooding rains. These coupled with high surf can cause major beach erosion. When a tropical cyclone makes landfall, the eye usually closes in upon itself due to negative environmental factors over land, such as friction with the t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyclone Dana, As Observed By The Doppler Radar In Paradip
In meteorology, a cyclone () is a large air mass that rotates around a strong center of low atmospheric pressure, counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere as viewed from above (opposite to an anticyclone). Cyclones are characterized by inward-spiraling winds that rotate about a zone of low pressure. The largest low-pressure systems are polar vortices and extratropical cyclones of the largest scale (the synoptic scale). Warm-core cyclones such as tropical cyclones and subtropical cyclones also lie within the synoptic scale. Mesocyclones, tornadoes, and dust devils lie within smaller mesoscale. Upper level cyclones can exist without the presence of a surface low, and can pinch off from the base of the tropical upper tropospheric trough during the summer months in the Northern Hemisphere. Cyclones have also been seen on extraterrestrial planets, such as Mars, Jupiter, and Neptune. Cyclogenesis is the process of cyclone formation a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
