|
Tarlac River
The Tarlac River is a river in Central Luzon, Philippines, it is the longest tributary of the Agno River with a total length of covering a drainage area of traversing the provinces of Tarlac and Pangasinan. The river originates around the vicinity of Mount Pinatubo and empties itself into the Agno River at Poponto Swamp located between the boundaries of Tarlac and Pangasinan. It was formerly the site of traditional balsa or bamboo raft riding, until the river was heavily silted by sticky lahar or mud flow brought by the eruption of Mount Pinatubo on June 15, 1991, filling the river with over of lahar. Its main tributary is the O'Donnel River in Santa Lucia, Capas, Tarlac. The Tarlac River is dammed at Barangay Tibag in Tarlac City where its water is used for irrigation and distributed to the northern and central regions of Tarlac, the rest of the river is now a bed of sand. The river was once a good source of fish and water used for irrigation, the irrigation system no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tarlac City
Tarlac City, officially the City of Tarlac (; ; ; ), is a component city and capital of the Provinces of the Philippines, province of Tarlac, Philippines. According to the 2020 census, it has a population of 385,398 people, making it the most populous in the province. History Tarlac's first settlers came from Bacolor, Pampanga. They cleared the area, fertilised the soil, and then established their settlement here in 1788. Tarlac's name is a Hispanized derivation from a ''talahib'' weed called ''tarlak'', an Aeta term. The area around the current capital city was described as ''matarlak'' or ''malatarlak'', a word meaning "abundant with ''tarlak'' grass."Resources for Local Governance – Tarlac This small community of settlers experienced rapid population growth, as settlers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
River Rapids Ride
A river rapids ride (or river rafting ride) is an amusement ride that simulates whitewater rafting. History The river rapids ride concept was proposed by Bill Crandall (general manager of Six Flags AstroWorld, AstroWorld in Houston) and developed by Intamin. AstroWorld introduced the world's first river rapids ride, Thunder River (ride), Thunder River, in 1980 and popularized a concept which can now be found at most major amusement parks. Despite being an incredibly popular attraction, AstroWorld's Thunder River (being a prototype) was initially plagued by issues that were corrected in the first few seasons of operation. The boat bumpers were re-designed, portions of the wide river channel were narrowed or barricaded to prevent boats from bottle-necking or getting caught in a backflow, and a planned whirlpool effect was scrapped. Construction Many modern river rapids rides feature a much narrower river channel as well as smaller boats (6 seats as opposed to 12 seats). Some are h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
River Bed
A streambed or stream bed is the bottom of a stream or river and is confined within a channel or the banks of the waterway. Usually, the bed does not contain terrestrial (land) vegetation and instead supports different types of aquatic vegetation (aquatic plant), depending on the type of streambed material and water velocity. Streambeds are what would be left once a stream is no longer in existence. The beds are usually well preserved even if they get buried because the banks and canyons made by the stream are typically hard, although soft sand and debris often fill the bed. Dry, buried streambeds can actually be underground water pockets. During times of rain, sandy streambeds can soak up and retain water, even during dry seasons, keeping the water table close enough to the surface to be obtainable by local people. The nature of any streambed is always a function of the flow dynamics and the local geologic materials. The climate of an area will determine the amount of precip ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barangay
The barangay (; abbreviated as Brgy. or Bgy.), historically referred to as ''barrio'', is the smallest Administrative divisions of the Philippines, administrative division in the Philippines. Named after the Precolonial barangay, precolonial polities of the same name, modern barangays are political subdivisions of cities and municipalities which are analogous to Village#Philippines, villages, districts, neighborhoods, suburbs, or boroughs. The word ''barangay'' originated from ''balangay'', a type of boat used by a group of Austronesian peoples when they migrated to the Philippines. All Municipalities of the Philippines, municipalities and Cities of the Philippines, cities in the Philippines are politically subdivided into barangays, with the exception of the municipalities of Adams, Ilocos Norte, Adams in Ilocos Norte and Kalayaan, Palawan, Kalayaan in Palawan, each containing a single barangay. Barangays are sometimes informally subdivided into smaller areas called ''purok'' ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Irrigation
Irrigation (also referred to as watering of plants) is the practice of applying controlled amounts of water to land to help grow crops, landscape plants, and lawns. Irrigation has been a key aspect of agriculture for over 5,000 years and has been developed by many cultures around the world. Irrigation helps to grow crops, maintain landscapes, and revegetation, revegetate disturbed soils in dry areas and during times of below-average rainfall. In addition to these uses, irrigation is also employed to protect crops from frost, suppress weed growth in grain fields, and prevent soil consolidation. It is also used to cool livestock, reduce dust, dispose of sewage, and support mining operations. Drainage, which involves the removal of surface and sub-surface water from a given location, is often studied in conjunction with irrigation. There are several methods of irrigation that differ in how water is supplied to plants. Surface irrigation, also known as gravity irrigation, is the olde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Capas
Capas, officially the Municipality of Capas (; ), is a Philippine municipality, municipality in the Philippine province, province of Tarlac, Philippines, and one of the richest towns in the province. The town also consists of numerous subdivisions and exclusive villages. Capas is knon as the “Tourism Capital of Tarlac." Apart from being known as the Camp O'Donnell, final site of the infamous Bataan Death March, it is also known for Mount Pinatubo treks, where thousands of mountaineers and visitors go. The town has some industrial factories like the PilMiCo. History Originally a part of Zambales and Pampanga, its first settlers were the Kapampangan people, Kapampangan and the Aeta. It was founded in the year 1710 by the Augustinians, Augustinian Friars. During the American Colonial period, the Americans built the Camp O'Donell for military installation until when the Japanese used it as a Camp O'Donnell, concentration camp during the Bataan Death March as the last stop of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tributary
A tributary, or an ''affluent'', is a stream or river that flows into a larger stream (''main stem'' or ''"parent"''), river, or a lake. A tributary does not flow directly into a sea or ocean. Tributaries, and the main stem river into which they flow, drain the surrounding drainage basin of its surface water and groundwater, leading the water out into an ocean, another river, or into an endorheic basin. The Irtysh is a chief tributary of the Ob (river), Ob river and is also the longest tributary river in the world with a length of . The Madeira River is the largest tributary river by volume in the world with an average discharge of . A confluence, where two or more bodies of water meet, usually refers to the joining of tributaries. The opposite to a tributary is a distributary, a river or stream that branches off from and flows away from the main stream. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1991 Eruption Of Mount Pinatubo
The 1991 eruption of Mount Pinatubo in the Philippines' Luzon Volcanic Arc was the second-largest volcanic eruption of the 20th century, behind only the 1912 eruption of Novarupta in Alaska. Eruptive activity began on April 2 as a series of phreatic eruption, phreatic explosions from a fissure that opened on the north side of Mount Pinatubo. Seismographs were set up and began monitoring the volcano for earthquakes. In late May, the number of seismic events under the volcano fluctuated from day-to-day. Beginning June 6, a swarm of progressively shallower earthquakes accompanied by Deformation (volcanology), inflationary tilt on the upper east flank of the mountain, culminated in the extrusion of a small lava dome. On June 12, the volcano's first spectacular eruption sent an eruption column, ash column into the atmosphere. Additional explosions occurred overnight and the morning of June 13. Seismic activity during this period became intense. When even more highly gas-charged m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lahar
A lahar (, from ) is a violent type of mudflow or debris flow composed of a slurry of Pyroclastic rock, pyroclastic material, rocky debris and water. The material flows down from a volcano, typically along a valley, river valley. Lahars are often extremely destructive and deadly; they can flow tens of metres per second, they have been known to be up to deep, and large flows tend to destroy any structures in their path. Notable lahars include those at Mount Pinatubo in the Philippines and Nevado del Ruiz in Colombia, the latter of which killed more than 20,000 people in the Armero tragedy. Etymology The word ''lahar'' is of Javanese language, Javanese origin. Berend George Escher introduced it as a geological term in 1922. Description The word ''lahar'' is a general term for a flowing mixture of water and pyroclastic debris. It does not refer to a particular rheology or sediment concentration. Lahars can occur as normal stream flows (sediment concentration of less than 30%), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siltation
Siltation is water pollution caused by particulate terrestrial clastic material, with a particle size dominated by silt or clay. It refers both to the increased concentration of suspended sediments and to the increased accumulation (temporary or permanent) of fine sediments on bottoms where they are undesirable. Siltation is most often caused by soil erosion or sediment spill. It is sometimes referred to by the ambiguous term "sediment pollution", which can also refer to a chemical contamination of sediments accumulated on the bottom, or to pollutants bound to sediment particles. Although "siltation" is not perfectly stringent, since it also includes particle sizes other than silt, it is preferred for its lack of ambiguity. Causes The origin of the increased sediment transport into an area may be erosion on land or activities in the water. In rural areas, the erosion source is typically soil degradation by intensive or inadequate agricultural practices, leading to soil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philippine Atmospheric, Geophysical And Astronomical Services Administration
The Philippine Atmospheric, Geophysical and Astronomical Services Administration (, abbreviated as PAGASA , which means "hope" as in the Tagalog word ''pag-asa'') is the National Meteorological and Hydrological Services (NMHS) agency of the Philippines mandated to provide protection against natural calamities and to ensure the safety, well-being and economic security of all the people, and for the promotion of national progress by undertaking scientific and technological services in meteorology, hydrology, climatology, astronomy and other geophysical sciences. Created on December 8, 1972, by reorganizing the Weather Bureau, PAGASA now serves as one of the Scientific and Technological Services Institutes of the Department of Science and Technology. History The ''Observatorio Meteorológico de Manila'' Formal meteorological and astronomical services in the Philippines began in 1865 with the establishment of the ''Observatorio Meteorológico de Manila'' (Manila Meteorologica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
River Mouth
A river mouth is where a river flows into a larger body of water, such as another river, a lake/reservoir, a bay/gulf, a sea, or an ocean. At the river mouth, sediments are often deposited due to the slowing of the current, reducing the carrying capacity of the water. The water from a river can enter the receiving body in a variety of different ways. The motion of a river is influenced by the relative density of the river compared to the receiving water, the rotation of the Earth, and any ambient motion in the receiving water, such as tides or seiches. If the river water has a higher density than the surface of the receiving water, the river water will plunge below the surface. The river water will then either form an underflow or an interflow within the lake. However, if the river water is lighter than the receiving water, as is typically the case when fresh river water flows into the sea, the river water will float along the surface of the receiving water as an overflow. Al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
