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Tropical Storm Sanba (2023)
Tropical Storm Sanba was a weak but destructive tropical cyclone which brought heavy rains to Vietnam and South China in mid-October 2023. The sixteenth named storm of the annual typhoon season, the precursor of Sanba formed as a low-pressure area on October 13, west of the Philippines. The system moved north-northwest ward and gradually gaining strength due to favourable atmospheric condition. On October 17, the system intensified to a tropical depression, and became Tropical Storm Sanba the following day. Sanba later re-curved to the north-northeast, striking the western coast of Hainan. On October 20, Sanba decelerated and hit the western coast of the Leizhou Peninsula. The system weakened due to hostile environment and dissipated later that day. The precursor of Sanba interacted with the Intertropical Convergence Zone (ITCZ), which brought heavy rains to Vietnam, sinking two fishing boats, killing three people and 12 other were missing. Due to its slow-paced movement, Sanba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Gulf Of Tonkin
The Gulf of Tonkin is a gulf at the northwestern portion of the South China Sea, located off the coasts of Tonkin ( northern Vietnam) and South China. It has a total surface area of . It is defined in the west and northwest by the northern coastline of Vietnam down to the Cồn Cỏ district, in the north by China's Guangxi Zhuang Autonomous Region, and to the east by the Leizhou Peninsula and Hainan Island. English sources from the People's Republic of China refer to the Gulf of Tonkin as Beibu Wan. Description and etymology The name ''Tonkin'', written "" in chữ Hán characters and in the Vietnamese alphabet, means "eastern capital", and is the former toponym for Hanoi, the present capital of Vietnam. It is not to be confused with Tokyo, which is also written "" and also means "eastern capital". During the French colonial era, the northern region of today’s Vietnam was called ''Tonkin''. ''Bắc Bộ'' is the native Vietnamese name of Tonkin, which is the nowad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Central Vietnam
Central Vietnam ( or ), also known as Middle Vietnam or The Middle, formerly known as by the State of Vietnam, by the Republic of Vietnam, or '' Annam'' under French colonial rule, is one of the three geographical regions within Vietnam. The name Trung Bộ was used by the emperor Bảo Đại when he established administrative level higher than Province in 1945, instead of the Trung Kỳ which recalled the French occupation. This name was officially used by government of the Democratic Republic of Vietnam and is popularly used today. The two south central costal provinces Ninh Thuận and Bình Thuận are sometimes seen as part of the Southeast region. Administration Central Vietnam includes 3 administrative regions, which in turn comprises 19 First Tier units. Municipality (thành phố trực thuộc trung ương) Of all 19 First Tier units, 1 is municipality and 18 are provinces. Gallery See also * Northern, Central and Southern Vietnam *Regions of Vietnam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Lingao County
Língāo County (formerly romanised as Limko or Limkao) is an administrative district in Hainan province, China. It is one of the 4 counties of Hainan. Its postal code is 571800, and in 1999, its population was 399,057 people, who mainly speak the Be language. Climate Lingao has a tropical savanna climate (Köppen ''Aw'').It borders the subtropical monsoon climate (Köppen Köppen is a German surname. Notable people with the surname include: * Bernd Köppen (1951–2014), German pianist and composer * Carl Köppen (1833-1907), German military advisor in Meiji era Japan * Edlef Köppen (1893–1939), German author ... ''Cwa''). See also * List of administrative divisions of Hainan References * Official website (Chinese) Lingao County {{Hainan-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Zhanjiang
Zhanjiang; Leizhou Min: ''Tchiàm-kōng''; previously Tsamkong or Guangzhouwan, then romanized in English as Kwangchowan or Kwangchow Wan. is a port city on the southwestern panhandle of Guangdong province in South China. The prefecture-level city of Zhanjiang administers the whole of Leizhou Peninsula, facing Haikou city of Hainan across the Qiongzhou Strait. As of the 2020 census, its population was 6,981,236 (6,994,832 in 2010) whom 1,931,455 lived in the builtup (or metro) area consisting of four urban districts: Chikan, Xiashan, Potou, and Mazhang. In 2007, the city was named China's top ten livable cities by Chinese Cities Brand Value Report, which was released at 2007 Beijing Summit of China Cities Forum. History Imperial China era During the Qin dynasty (221–206 BC), the area belonged to Xiang Shire. The imperial government of the Han dynasty (206 BC−220 AD) set Xuwen County as the administrator of the whole Leizhou Peninsula. It was on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Barometric Pressure
Atmospheric pressure, also known as air pressure or barometric pressure (after the barometer), is the pressure within the atmosphere of Earth. The standard atmosphere (symbol: atm) is a unit of pressure defined as , which is equivalent to 1,013.25 millibars, 760 mm Hg, 29.9212 inchesHg, or 14.696 psi.International Civil Aviation Organization. ''Manual of the ICAO Standard Atmosphere'', Doc 7488-CD, Third Edition, 1993. . The atm unit is roughly equivalent to the mean sea-level atmospheric pressure on Earth; that is, the Earth's atmospheric pressure at sea level is approximately 1 atm. In most circumstances, atmospheric pressure is closely approximated by the hydrostatic pressure caused by the weight of air above the measurement point. As elevation increases, there is less overlying atmospheric mass, so atmospheric pressure decreases with increasing elevation. Because the atmosphere is thin relative to the Earth's radius—especially the dense atmospheric layer at low altitudes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Maximum Sustained Wind
The maximum sustained wind associated with a tropical cyclone is a common indicator of the intensity of the storm. Within a mature tropical cyclone, it is found within the eyewall at a certain distance from the center, known as the radius of maximum wind, or RMW. Unlike gusts, the value of these winds are determined via their sampling and averaging the sampled results over a period of time. Wind measuring has been standardized globally to reflect the winds at above mean sea level, and the maximum sustained wind represents the highest average wind over either a one-minute (US) or ten-minute time span (see the definition, below), anywhere within the tropical cyclone. Surface winds are highly variable due to friction between the atmosphere and the Earth's surface, as well as near hills and mountains over land. Over the ocean, satellite imagery is often used to estimate the maximum sustained winds within a tropical cyclone. Land, ship, aircraft reconnaissance observations, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Time In China
The time in China follows a single standard time offset of UTC+08:00, where Beijing is located, even though the country spans five geographical time zones. It is the largest sovereign nation in the world that officially observes only one time zone. The nationwide standardized time is named Beijing Time (BJT; ) domestically and China Standard Time (CST) internationally. Daylight saving time has not been observed since 1991. China Standard Time (UTC+8) is consistent across Mainland China, Hong Kong, and Macau. It is also equivalent with Taiwan, Philippines, Singapore, Brunei, most of Mongolia, Malaysia, Irkutsk Time of Russia, Western Australia, and Central Indonesia. History In the 1870s, the Shanghai Xujiahui Observatory was constructed by a French Catholic missionary. In 1880s officials in Shanghai French Concession started to provide a time announcement service using the Shanghai Mean Solar Time provided by the aforementioned observatory for ships into and out of Sha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Dongfang, Hainan
Dongfang () is one of the seven county-level cities of Hainan province, China. Although called a "city", Dongfang refers to a large land area in Hainan - an area which was once a county. Within this area is the main city, Dongfang City. It is located on the western coast of Hainan Island facing Vietnam across the Gulf of Tonkin, and in 2004 had a population of 435,000. As all county-level units, Dongfang is administratively divided into township-level units (see the list). The main urban area of Dongfang (i.e., what used to be called "the county seat", when Dongfang was a county) is the town of Basuo. The former county of Ganen ( postal: Kumyan, Kanem or Kamyan) is now part of the city. Geography and climate Dongfang has a tropical wet and dry climate (Köppen ''Aw''). Monsoonal influences are strong, and the two seasons are the wet season and the dry season (November to April), when very little rainfall occurs. Rainfall is heaviest and most frequent from August to October, w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
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 center of its 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
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. Etymology 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. 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 Europe usually reached the subtropics at about the time the "dead horse" was worke ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Central Dense Overcast
The central dense overcast, or CDO, of a tropical cyclone or strong subtropical cyclone is the large central area of thunderstorms surrounding its circulation center, caused by the formation of its eyewall. It can be round, angular, oval, or irregular in shape. This feature shows up in tropical cyclones of tropical storm or hurricane strength. How far the center is embedded within the CDO, and the temperature difference between the cloud tops within the CDO and the cyclone's eye, can help determine a tropical cyclone's intensity with the Dvorak technique. Locating the center within the CDO can be a problem with strong tropical storms and minimal hurricanes as its location can be obscured by the CDO's high cloud canopy. This center location problem can be resolved through the use of microwave satellite imagery. After a cyclone strengthens to around hurricane intensity, an eye appears at the center of the CDO, defining its center of low pressure and its cyclonic wind field. Tropi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Satellite Imagery
Satellite images (also Earth observation imagery, spaceborne photography, or simply satellite photo) are images of Earth collected by imaging satellites operated by governments and businesses around the world. Satellite imaging companies sell images by licensing them to governments and businesses such as Apple Maps and Google Maps. History The first images from space were taken on Sub-orbital spaceflight, sub-orbital flights. The US-launched V-2 flight on October 24, 1946, took one image every 1.5 seconds. With an Apsis, apogee of 65 miles (105 km), these photos were from five times higher than the previous record, the 13.7 miles (22 km) by the Explorer II balloon mission in 1935. The first satellite (orbital) photographs of Earth were made on August 14, 1959, by the U.S. Explorer 6. The first satellite photographs of the Moon might have been made on October 6, 1959, by the Soviet satellite Luna 3, on a mission to photograph the far side of the Moon. The Blue Marble ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
