|
Typhoon Joan (1970)
Super Typhoon Joan, known in the Philippines as Typhoon Sening, was the first of two super typhoons to strike the Philippines within a week in October 1970, the second being Super Typhoon Kate. Super Typhoon Joan is the fourth strongest typhoon ever to affect the Philippines, just after typhoons Haiyan, Meranti, and Goni. Meteorological history A tropical disturbance was first detected on October 8 near Truk (now Chuuk) and Ponape (now Pohnpei). Due to the wind and sea conditions, the disturbance moved west quicker than expected at near 17 knots (31 km/h or 20 mph). A circulation developed on the morning of October 9, and it was a tropical storm by the time it passed Ulithi Atoll. Joan continued to strengthen, and by October 11 had become a typhoon. However, it had slowed in forward speed due to it moving near an anticyclone that was located 300 miles (480 km) southeast of Okinawa. As Joan continued to strengthen, it reacted to the ridge line, and t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1970 Pacific Typhoon Season
The 1970 Pacific typhoon season has no official bounds; it ran year-round in 1970, but most tropical cyclones tend to form in the northwestern Pacific Ocean between June and December. These dates conventionally delimit the period of each year when most tropical cyclones form in the northwestern Pacific Ocean. The scope of this article is limited to the Pacific Ocean, north of the equator and west of the International Dateline. Storms that form east of the date line and north of the equator are called hurricanes; see 1970 Pacific hurricane season. Tropical Storms formed in the entire west Pacific basin were assigned a name by the Joint Typhoon Warning Center. Tropical depressions in this basin have the "W" suffix added to their number. Tropical depressions that enter or form in the Philippine area of responsibility are assigned a name by the Philippine Atmospheric, Geophysical and Astronomical Services Administration or PAGASA. This can often result in the same storm having two nam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bicol Region
Bicol, known formally as the Bicol Region or colloquially as Bicolandia ( bcl, Rehiyon kan Bikol; Rinconada Bikol: ''Rehiyon ka Bikol''; Waray Sorsogon, Masbateño: ''Rehiyon san Bikol''; tl, Rehiyon ng Bikol), is an administrative region of the Philippines, designated as Region V. Bicol comprises six provinces, four on the Bicol Peninsula mainland (the southeastern end of Luzon) – Albay, Camarines Norte, Camarines Sur, and Sorsogon – and the offshore island provinces of Catanduanes and Masbate. The regional center is Legazpi City and has one Independent Component City, the pilgrim city of Naga. The region is bounded by the Lamon Bay to the north, the Philippine Sea to the east, and the Sibuyan Sea and Ragay Gulf to the west. The northernmost provinces, Camarines Norte and Camarines Sur, are bordered to the west by the province of Quezon. Geography The Bicol Region comprises the southern part of Luzon, the largest island in the Philippine archipelago. The total land a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leizhou Peninsula
The Leizhou Peninsula, alternately romanized as the Luichow Peninsula, is a peninsula in the southernmost part of Guangdong province in South China. History Qing naval forces were stationed at the Leizhou Peninsula. During the 19th century, the area was a hotbed of piracy, many pirates, such as Zheng Yi and Wu Shi Er, were based in the area. Geography The Leizhou Peninsula is the third largest peninsula in China with an area of c. located on the southwestern end of Zhanjiang, Guangdong with the Gulf of Tonkin to the west and the 30 km wide Qiongzhou Strait to the south, separating the peninsula from Hainan Island. Geologically, basalt terraces account for 43% of the peninsula's area. The rest is divided up between marine terraces (27%) and alluvial plains (17%). Leizhou Peninsula is dotted with a few dormant volcanoes, beaches, and low-lying diluvial plains. Leizhou has two separate volcanic fields: a Pleistocene–Holocene field at the northern end ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trough (meteorology)
A trough is an elongated region of relatively low atmospheric pressure without a closed isobaric contour that would define it as a low pressure area. Since low pressure implies a low height on a pressure surface, troughs and ridges refer to features in an identical sense as those on a topographic map. Troughs may be at the surface, or aloft. Near-surface troughs sometimes mark a weather front associated with clouds, showers, and a wind direction shift. Upper-level troughs in the jet stream (as shown in diagram) reflect cyclonic filaments of vorticity. Their motion induces upper-level wind divergence, lifting and cooling the air ahead (downstream) of the trough and helping to produce cloudy and rain conditions there. Unlike fronts, there is not a universal symbol for a trough on a surface weather analysis chart. The weather charts in some countries or regions mark troughs by a line. In the United States, a trough may be marked as a dashed line or bold line. In the UK, Hong Kong ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beaufort Scale
The Beaufort scale is an empirical measure that relates wind speed to observed conditions at sea or on land. Its full name is the Beaufort wind force scale. History The scale was devised in 1805 by the Irish hydrographer Francis Beaufort (later Rear Admiral), a Royal Navy officer, while serving on . The scale that carries Beaufort's name had a long and complex evolution from the previous work of others (including Daniel Defoe the century before) to when Beaufort was Hydrographer of the Navy in the 1830s, when it was adopted officially and first used during the voyage of HMS ''Beagle'' under Captain Robert FitzRoy, who was later to set up the first Meteorological Office (Met Office) in Britain giving regular weather forecasts. In the 18th century, naval officers made regular weather observations, but there was no standard scale and so they could be very subjective – one man's "stiff breeze" might be another's "soft breeze". Beaufort succeeded in standardising the sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eye (cyclone)
The eye is a region of mostly calm weather at the center of tropical cyclones. The eye of a storm is a roughly circular area, typically in diameter. It is surrounded by the ''eyewall'', a ring of towering thunderstorms where the most severe weather and highest winds occur. The cyclone's lowest barometric pressure occurs in the eye and can be as much as 15 percent lower than the pressure outside the storm. In strong tropical cyclones, the eye is characterized by light winds and clear skies, surrounded on all sides by a towering, symmetric eyewall. In weaker tropical cyclones, the eye is less well defined and can be covered by the central dense overcast, an area of high, thick clouds that show up brightly on satellite imagery. Weaker or disorganized storms may also feature an eyewall that does not completely encircle the eye or have an eye that features heavy rain. In all storms, however, the eye is the location of the storm's minimum barometric pressure—where the atmospheric pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South China Sea
The South China Sea is a marginal sea of the Western Pacific Ocean. It is bounded in the north by the shores of South China (hence the name), in the west by the Indochinese Peninsula, in the east by the islands of Taiwan and northwestern Philippines (mainly Luzon, Mindoro and Palawan), and in the south by Borneo, eastern Sumatra and the Bangka Belitung Islands, encompassing an area of around . It communicates with the East China Sea via the Taiwan Strait, the Philippine Sea via the Luzon Strait, the Sulu Sea via the straits around Palawan (e.g. the Mindoro and Balabac Straits), the Strait of Malacca via the Singapore Strait, and the Java Sea via the Karimata and Bangka Straits. The Gulf of Thailand and the Gulf of Tonkin are also part of the South China Sea. The shallow waters south of the Riau Islands are also known as the Natuna Sea. The South China Sea is a region of tremendous economic and geostrategic importance. One-third of the world's maritime shipping passe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manila
Manila ( , ; fil, Maynila, ), officially the City of Manila ( fil, Lungsod ng Maynila, ), is the capital of the Philippines, and its second-most populous city. It is highly urbanized and, as of 2019, was the world's most densely populated city proper. Manila is considered to be a global city and rated as an Alpha – City by Globalization and World Cities Research Network (GaWC). It was the first chartered city in the country, designated as such by the Philippine Commission Act 183 of July 31, 1901. It became autonomous with the passage of Republic Act No. 409, "The Revised Charter of the City of Manila", on June 18, 1949. Manila is considered to be part of the world's original set of global cities because its commercial networks were the first to extend across the Pacific Ocean and connect Asia with the Spanish Americas through the galleon trade; when this was accomplished, it marked the first time in world history that an uninterrupted chain of trade routes circling ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catanduanes Island
Catanduanes (; ), officially the Province of Catanduanes, is an island Provinces of the Philippines, province located in the Bicol Region of Luzon in the Philippines. It is the List of islands of the Philippines#Catanduanes, 12th-largest island in the Philippines, and lies to the east of Camarines Sur, across Maqueda Channel. Its capital is Virac, Catanduanes, Virac. It had a population of 271,879 people as of the 2020 census. The province comprises Catanduanes Island (also called ''Virac Island''), Panay Island (Catanduanes), Panay Island, Lete Island, the Palumbanes, Palumbanes group of islands (Porongpong, Tignob and Calabagio), and a few other small, surrounding islets and rocks. The province is also home to various mollusk fossil sites, notably the second-oldest ammonite site in the Philippines. These sites have certain species of ammonites that are found nowhere else in Southeast Asia. Because of the province's importance and rich geologic history, various scholars have sug ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lagonoy
Lagonoy, officially the Municipality of Lagonoy ( bcl, Banwaan kan Lagonoy; tl, Bayan ng Lagonoy), is a 2nd class municipality of the Philippines, municipality in the Philippine Province, province of Camarines Sur, Philippines. According to the 2020 census, it has a population of 56,714 people. Etymology There are two version as how Lagonoy got its name. Year 1734 when the first Spaniards in this place found a small forested area near a creek where "hagonoy", a medicinal plant grew abundantly. Because the Spaniards could hardly pronounce the word "hagonoy" with the "j" sound, with "ha" of the first syllable, they deliberately decided to change "ha" to "la". Since then, the place was known as "Lagonoy". Some of the residents also believed that the name was taken from the word "''lango''" meaning drunk. During fiestas and other forms or merry making, men used to drink too much "tuba" (native wine) that they become drunk or "lango" (Bikol for drunk) so that the place was called by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
G-force
The gravitational force equivalent, or, more commonly, g-force, is a measurement of the type of force per unit mass – typically acceleration – that causes a perception of weight, with a g-force of 1 g (not gram in mass measurement) equal to the conventional value of gravitational acceleration on Earth, ''g'', of about . Since g-forces indirectly produce weight, any g-force can be described as a "weight per unit mass" (see the synonym specific weight). When the g-force is produced by the surface of one object being pushed by the surface of another object, the reaction force to this push produces an equal and opposite weight for every unit of each object's mass. The types of forces involved are transmitted through objects by interior mechanical stresses. Gravitational acceleration (except certain electromagnetic force influences) is the cause of an object's acceleration in relation to free fall. The g-force experienced by an object is due to the vector sum of all ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.svg "Click for more on -> Catanduanes Island")
