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Typhoon Krathon
Typhoon Krathon, known in the Philippines as Super Typhoon Julian, was a powerful and erratic typhoon which impacted Taiwan and the Philippines in late September and early October 2024. Krathon, which refers to the Sandoricum koetjape, santol fruit, was the first storm to make landfall on Taiwan's densely populated western plains since Typhoon Thelma (1977), Typhoon Thelma in 1977. It was also the first storm to hit Kaohsiung in October and the first since 2001 Pacific typhoon season#Tropical Storm Trami (Gorio), Tropical Storm Trami in 2001 to weaken into a tropical depression over Taiwan. Additionally, it was the wettest tropical cyclone in Basco, Batanes, bringing more than two months' worth of rainfall for September and surpassing the previous record set by Typhoon Ruth (1991), Typhoon Ruth in 1991 and strongest typhoon to hit the province since Typhoon Chanthu (2021), Typhoon Chanthu in 2021. The eighteenth named storm, the second violent typhoon of the season, and the secon ... [...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 South China, in the west by the Indochinese Peninsula, in the east by the islands of Taiwan island, Taiwan and northwestern Philippines (mainly Luzon, Mindoro and Palawan Island, 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, the Java Sea via the Karimata Strait, Karimata and Bangka Straits and directly with Gulf of Thailand. The Gulf of Tonkin is part of the South China Sea. $3.4 trillion of the world's $16 trillion Maritime transport, maritime shipping passed through South China Sea in 2016. Oil and natural gas reserves have been found in the area. The Western Central Pacific accounted for 14% of world's commercial fishing in 2010. The South China Sea Islands, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropical Cyclogenesis
Tropical cyclogenesis is the development and strengthening of a tropical cyclone in the atmosphere. The mechanisms through which tropics, tropical cyclogenesis occur are distinctly different from those through which temperate cyclogenesis occurs. Tropical cyclogenesis involves the development of a warm core, warm-core cyclone, due to significant convection in a favorable atmospheric environment. Tropical cyclogenesis requires six main factors: sufficiently warm sea surface temperatures (at least ), atmospheric instability, high humidity in the lower to middle levels of the troposphere, enough Coriolis force to develop a low-pressure area, low-pressure center, a pre-existing low-level focus or disturbance, and low vertical wind shear. Tropical cyclones tend to develop during the summer, but have been noted in nearly every month in tropical cyclone basins, most basins. Climate cycles such as ENSO and the Madden–Julian oscillation modulate the timing and frequency of tropical c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siaogang District
Siaogang District, United States National Geospatial-Intelligence Agency ( lit: Small port District) is a district of Kaohsiung City in southern Taiwan. Before the merging of Kaohsiung City and Kaohsiung County in 2010, Siaogang was the southernmost district in Kaohsiung City. The second largest airport in Taiwan, Kaohsiung International Airport, is located in Siaogang. History Siaogang was developed during Dutch era. The Dutch built Ang Moh Harbor as an addition to Anping Harbor in Tainan. After the Dutch were defeated by Koxinga, they left Taiwan. Koxinga's government developed Taiwan as the last stronghold to revive the Ming Dynasty and prepare his troops to fight against the Qing dynasty. He sent one of his men, Wu Yanshang, to expand Siaogang. After the demise of Koxinga, his son and his grandson, the Qing managed to defeat the Kingdom of Tungning and annexed Taiwan. Empire of Japan In 1895, the Qing dynasty ceded Taiwan to Japan in the Treaty of Shimonoseki after losing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ocean Heat Content
Ocean heat content (OHC) or ocean heat uptake (OHU) is the energy absorbed and stored by oceans, and is thus an important indicator of global warming. Ocean heat content is calculated by measuring ocean temperature at many different locations and depths, and integrating the areal density of a change in enthalpic energy over an ocean basin or entire ocean. Between 1971 and 2018, a steady upward trendNOAA National Centers for Environmental Information, Assessing the Global Climate in 2024, published online January 2025, Retrieved on March 2, 2025 from https://www.ncei.noaa.gov/news/global-climate-202413. in ocean heat content accounted for over 90% of Earth's excess energy from global warming. Scientists estimate a 1961–2022 warming trend of 0.43±0.08W/m², accelerating at about 0.15±0.04W/m² perdecade. By 2020, about one third of the added energy had propagated to depths below 700 meters. In 2024, the world's oceans were again the hottest in the historical record and excee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radar Imagery
Imaging radar is an application of radar which is used to create two-dimensional images, typically of landscapes. Imaging radar provides its light to illuminate an area on the ground and take a picture at radio wavelengths. It uses an antenna and digital computer storage to record its images. In a radar image, one can see only the energy that was reflected back towards the radar antenna. The radar moves along a flight path and the area illuminated by the radar, or footprint, is moved along the surface in a swath, building the image as it does so. Digital radar images are composed of many dots. Each pixel in the radar image represents the radar backscatter for that area on the ground ( terrain return): brighter areas represent high backscatter, darker areas represents low backscatter. The traditional application of radar is to display the position and motion of typically highly reflective objects (such as aircraft or ships) by sending out a radiowave signal, and then detecting t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eyewall Replacement Cycle
In meteorology, eyewall replacement cycles, also called concentric eyewall cycles, naturally occur in intense tropical cyclones with maximum sustained winds greater than , or hurricane-force, and particularly in major hurricanes of Saffir–Simpson scale, Saffir–Simpson category 3 to 5. In such storms, some of the outer rainbands may strengthen and organize into a ring of thunderstorms—a new, outer Eye (cyclone), eyewall—that slowly moves inward and robs the original, inner eyewall of its needed moisture and angular momentum. Since the strongest winds are in a tropical cyclone's Eye (cyclone), eyewall, the storm usually weakens during this phase, as the inner wall is "choked" by the outer wall. Eventually the outer eyewall replaces the inner one completely, and the storm may re-intensify. The discovery of this process was partially responsible for the end of the U.S. government's hurricane modification experiment Project Stormfury. This project set out to cloud seeding, seed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central 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 14.696psi.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] |
Maximum Sustained Winds
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] |
Batanes
Batanes, officially the Province of Batanes (; Ilocano: ''Probinsia ti Batanes''; , ), is an archipelagic province in the Philippines, administratively part of the Cagayan Valley region. It is the northernmost province in the Philippines, and the smallest, both in population and land area. The capital is Basco, located on the island of Batan, and is also the most populous municipality in the province. The island group is located approximately north of the Luzon mainland and about south of Taiwan ( Pingtung County). Batanes is separated from the Babuyan Islands of Cagayan Province by the Balintang Channel, and from Taiwan by the Bashi Channel. Etymology The name ''Batanes'' is a Hispanicized plural form derived from the Ivatan endonym ''Batan''. History Early history The ancestors of today's Ivatans descended from Austronesians who migrated to the islands 4,000 years ago during the Neolithic period. They lived in fortified mountain areas called '' idjangs'' and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sabtang
Sabtang, officially the Municipality of Sabtang (; ilocano language, Ilocano: ''Ili ti Sabtang''; ), is a municipality of the Philippines, municipality in the Philippine Province, province of Batanes, Philippines. According to the 2020 census, it has a population of 1,696 people. Sabtang is the southernmost island municipality in the Batanes Group of Islands. It consists primarily of ''Sabtang Island'' and two smaller and uninhabited islands nearby, namely, Ivuhos and Dequey. The municipality is known for its Sabtang Lighthouse, lighthouse and the old stone houses of the Ivatan people, Ivatan villages of Chavayan and Savidug. Like Batan Island to the north, Sabtang also has a few Mission-style churches and white sand beaches. History The Spanish missionary, Father Artiquez, first visited the island of Sabtang in 1786González Alonzo, Fr. Julio, O.P. (1966). "The Batanes Islands", in Acta Manilana, Manila: University of Santo Tomas Research Center after receiving an affirmative ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ragged Eye
The eye is a region of mostly calm weather at the center of a tropical cyclone. 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 of the cyclone 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 where the barometer reading is lowest. Structure A typical tropica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
