Geography (from Ancient Greekγεωγραφίαgeōgraphía; combining gê 'Earth' and gráphō 'write') is the study of the lands, features, inhabitants, and phenomena of Earth. Geography is an all-encompassing discipline that seeks an understanding of Earth and its human and natural complexities—not merely where objects are, but also how they have changed and come to be. While geography is specific to Earth, many concepts can be applied more broadly to other celestial bodies in the field of planetary science. Geography has been called "a bridge between natural science and social science disciplines."
Origins of many of the concepts in geography can be traced to Greek Eratosthenes of Cyrene, who may have coined the term "geographia" (c. 276 BC – c. 195/194 BC). The first recorded use of the word γεωγραφία was as the title of a book by Greek scholar Claudius Ptolemy (100 – 170 AD). This work created the so-called "Ptolemaic tradition" of geography, which included "Ptolemaic cartographic theory." However, the concepts of geography (such as cartography) date back to the earliest attempts to understand the world spatially, with the earliest example of an attempted world map dating to the 9th century BCE in ancient Babylon. The history of geography as a discipline spans cultures and millennia, being independently developed by multiple groups, and cross-pollinated by trade between these groups. The core concepts of geography consistent between all approaches are a focus on space, place, time, and scale.
Today, geography is an extremely broad discipline with multiple approaches and modalities. There have been multiple attempts to organize the discipline, including the four traditions of geography, and into branches. Techniques employed can generally be broken down into quantitative and qualitative approaches, with many studies taking mixed-methods approaches. Common techniques include cartography, remote sensing, interviews, and surveying. (Full article...)
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Marojejy Massif and the surrounding forests
Marojejy National Park (/məˈroʊdʒɛdʒiː/) is a national park in the Sava region of northeastern Madagascar. It covers 55,500 ha (214 sq mi) and is centered on the Marojejy Massif, a mountain chain that rises to an elevation of 2,132 m (6,995 ft). Access to the area around the massif was restricted to research scientists when the site was set aside as a strict nature reserve in 1952. In 1998, it was opened to the public when it was converted into a national park. It became part of the World Heritage Site known as the Rainforests of the Atsinanana in 2007. "Unique in the world, a place of dense, jungly rainforests, sheer high cliffs, and plants and animals found nowhere else on earth", Marojejy National Park has received plaudits in the New York Times and Smithsonian Magazine for its natural beauty and rich biodiversity that encompasses critically endangered members of the silky sifaka. To that end, a global consortium of conservation organizations, including the Lemur Conservation Foundation, Duke Lemur Center and Madagascar National Parks, have sought to promote research and conservation programs in Marojejy National Park, neighboring Anjanaharibe-Sud Reserve and Antanetiambo Private Reserve, to protect the endemic flora and fauna that reside in northeastern Madagascar. In addition, these organizations have implemented a variety of community-based initiatives to mitigate human encroachment on the park, such as poaching and selective logging, by encouraging local communities to engage in afforestation and silvicultural initiatives to promote a sustainable alternative to mining, slash-and-burn agriculture, and wood collection.
The wide range of elevations and rugged topography of the massif create diverse habitats that transition quickly with changes in altitude. Warm, dense rainforest can be found at lower elevations, followed by shorter forests at higher elevations, followed still by cloud forest, and topped near the peaks with the only remaining undisturbed mountain scrub in Madagascar. Better growing conditions for plants can be found on the eastern side of the mountains, which receives more rain than the western side. This habitat diversity lends itself to high levels of biodiversity. At least 118 species of bird, 148 species of reptile and amphibian, and 11 species of lemur are known to occur within Marojejy National Park. One of the lemurs, the silky sifaka (Propithecus candidus) is listed among "The World's 25 Most Endangered Primates". The helmet vanga (Euryceros prevostii) is considered the iconic bird species of the park. (Full article...)
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Tiruchirappalli (Tamil pronunciation:[ˈt̪iɾɯtːʃiɾaːpːaɭːi]ⓘ, formerly called Trichinopoly in English, also known as Tiruchi or Trichy), is a major tier II city in the Indian state of Tamil Nadu and the administrative headquarters of Tiruchirappalli district. The city is credited with being the best livable city, the cleanest city of Tamil Nadu, as well as the fifth safest city for women in India. It is the fourth largest city as well as the fourth largest urban agglomeration in the state. Located 322 kilometres (200 mi) south of Chennai and 374 kilometres (232 mi) north of Kanyakumari, Tiruchirappalli sits almost at the geographic centre of Tamil Nadu state. The Cauvery Delta begins 16 kilometres (9.9 mi) west of the city where the Kaveri river splits into two, forming the island of Srirangam which is now incorporated into the Tiruchirappalli City Municipal Corporation. The city occupies an area of 167.23 square kilometres (64.57 sq mi) and had a population of 916,857 in 2011.
Thessalonica had already been under Ottoman control from 1387 to 1403 before returning to Byzantine rule in the aftermath of the Battle of Ankara. In 1422, after the Byzantines supported Mustafa Çelebi as a rival pretender against him, Murad attacked Thessalonica. Unable to provide manpower or resources for the city's defence, its ruler, Andronikos Palaiologos, handed it over to the Republic of Venice in September 1423. The Venetians attempted to persuade the Sultan to recognise their possession, but failed as Murad considered the city his by right and the Venetians to be interlopers. This impasse led to an Ottoman blockade of Thessalonica, which occasionally flared up with direct attacks on the city. At the same time, the conflict was mostly fought as a series of raids by both sides against the other's territories in the Balkans and the Aegean Islands. The Venetians repeatedly tried to apply pressure by blocking the passage of the Dardanelles at Gallipoli, with little success. (Full article...)
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Sunset on Ganoga Lake
Ganoga Lake is a natural lake in Colley Township in southeastern Sullivan County in Pennsylvania, United States. Known as Robinson's Lake and Long Pond for most of the 19th century, the lake was purchased by the Ricketts family in the early 1850s and became part of R. Bruce Ricketts' extensive holdings in the area after the American Civil War. The lake is one of the highest in Pennsylvania, which led Ricketts to name it Highland Lake by 1874 and rename it Ganoga Lake in 1881; Pennsylvania senator Charles R. Buckalew suggested the name Ganoga from the Seneca language word for "water on the mountain".
The Ricketts built a stone house on the lake shore by 1852 or 1855; this served as a hunting lodge and tavern. In 1873 a large wooden addition was built north of the stone house, which became a hotel known as the North Mountain House. The hotel had one of the first summer schools in the United States in 1876 and 1877. A branch railroad line to the lake served the hotel and also hauled ice cut from the lake for refrigeration. The hotel closed in 1903, though the house remained the Ricketts family summer home. After the death of R. Bruce Ricketts in 1918, his heirs sold much of his 80,000 acres (32,000 ha) to the state for Pennsylvania State Game Lands and Ricketts Glen State Park. The state tried to purchase the lake in 1957, but was outbid by a group of investors who turned the land around it into a private housing development; as such it is "off limits" to the public. (Full article...)
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The mansion on the estate in about 1840, when it was owned by the Denison family Denbies is a large estate to the northwest of Dorking in Surrey, England. A farmhouse and surrounding land originally owned by John Denby was purchased in 1734 by Jonathan Tyers, the proprietor of Vauxhall Gardens in London, and converted into a weekend retreat. The house he built appears to have been of little architectural significance, but the Gothic garden he developed in the grounds on the theme of death achieved some notoriety, despite being short-lived. The estate was bought by Lord King of Ockham following Tyers's death in 1767, and the macabre artefacts he had installed, including two stone coffins topped by human skulls, were removed.
Joseph Denison, a wealthy banker, purchased the estate in about 1787, and it remained in the Denison family until 1849, when it passed to Thomas Cubitt, a master builder. At the time, Cubitt was working on Osborne House for Queen Victoria and Prince Albert, and the mansion he designed to replace the old one was a more modest version of Osborne. It was, however, still a substantial building, in the Italianate style, with almost 100 rooms on three storeys. In the nineteenth century Denison and later Cubitt served as local Members of Parliament, for West Surrey. (Full article...)
At the close of the ninth century, various competing kingdoms occupied the territory of modern Scotland. Scandinavian influence was dominant in the northern and western islands, Brythonic culture in the southwest, the Anglo-Saxon or English Kingdom of Northumbria in the southeast and the Pictish and GaelicKingdom of Alba in the east, north of the River Forth. By the tenth and eleventh centuries, northern Great Britain was increasingly dominated by Gaelic culture, and by the Gaelic regal lordship of Alba, known in Latin as either Albania or Scotia, and in English as "Scotland". From its base in the east, this kingdom acquired control of the lands lying to the south and ultimately the west and much of the north. It had a flourishing culture, comprising part of the larger Gaelic-speaking world and an economy dominated by agriculture and trade. (Full article...)
Evidence of Stone Age, Bronze Age, and Viking activity has been discovered in Ashton-under-Lyne. The "Ashton" part of the town's name probably dates from the Anglo-Saxon period, and derives from Old English meaning "settlement by ash trees". The origin of the "under-Lyne" suffix is less clear; it possibly derives from the Brittonic-originating word lemo meaning elm or from Ashton's proximity to the Pennines. In the Middle Ages, Ashton-under-Lyne was a parish and township and Ashton Old Hall was held by the de Asshetons, lords of the manor. Granted a royal charter in 1414, the manor spanned a rural area consisting of marshland, moorland, and a number of villages and hamlets. (Full article...)
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Seacology is a nonprofit501(c)(3) charitable organization headquartered in Berkeley, California, that works to preserve island ecosystems and cultures around the world. Founded in 1991, it began with the work of ethnobotanistPaul Alan Cox, who researched tropical plants and their medicinal value in the village of Falealupo in Samoa during the mid-1980s. When the villagers were pressured into selling logging rights to their rainforest in 1988 to build a new school, Cox and his wife offered to help secure funds for the new school in return for an agreement with the villagers to protect their forest. With the help of his friends and family, Cox secured the funds within six months, later earning him and the village chief, Fuiono Senio, the Goldman Environmental Prize for their efforts. Word spread throughout the islands, and with increasing demand for similar projects, Cox, along with Bill Marré and Ken Murdock, decided to form Seacology and expand their work internationally. For the first few years, the organization operated on a volunteer basis.
Because of the high risk of extinction for island fauna and the decline in coral reef ecosystems, Seacology's primary focus is projects in which villagers sign contracts under which they agree to help protect either terrestrial or marine habitat for a specified time in return for new buildings or services. The operations are low-cost, averaging around US$20,000 to $25,000. Construction is done with local labor and sometimes without the use of machinery. Seacology selects its projects by reviewing the recommendations of its field representatives and its scientific advisory board. (Full article...)
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Aerial view of Presque Isle toward the east-northeast
The recorded history of Presque Isle begins with the Erielhonan, a Native American tribe who gave their name to Lake Erie, and includes French, British, and American forts, as well as serving as a base for CommodoreOliver Hazard Perry's fleet in the War of 1812. With the growing importance of shipping on Lake Erie in the 19th century, Presque Isle became home to several lighthouses and what later became a United States Coast Guard station. In 1921, it became a state park, and as of 2007 it hosts over 4 million visitors per year, the most of any Pennsylvania state park. (Full article...)
The common raven (Corvus corax) is a large all-black passerine bird. It is the most widely distributed of all corvids, found across the Northern Hemisphere. It is a raven known by many names at the subspecies level; there are at least eight subspecies with little variation in appearance, although recent research has demonstrated significant genetic differences among populations from various regions. It is one of the two largest corvids, alongside the thick-billed raven, and is possibly the heaviest passerine bird; at maturity, the common raven averages 63 centimetres (25 inches) in length and 1.47 kilograms (3.2 pounds) in mass. Although their typical lifespan is considerably shorter, common ravens can live more than 23 years in the wild. Young birds may travel in flocks but later mate for life, with each mated pair defending a territory.
Common ravens have coexisted with humans for thousands of years and in some areas have been so numerous that people have regarded them as pests. Part of their success as a species is due to their omnivorous diet; they are extremely versatile and opportunistic in finding sources of nutrition, feeding on carrion, insects, cereal grains, berries, fruit, small animals, nesting birds, and food waste. Some notable feats of problem-solving provide evidence that the common raven is unusually intelligent. (Full article...)
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Uturuncu seen from the northwest
Uturuncu is a dormant volcano in the Sur Lípez Province of Bolivia. It is 6,008 metres (19,711 ft) high, has two summit peaks, and consists of a complex of lava domes and lava flows with a total volume estimated to be 50–85 km3. It bears traces of a former glaciation, even though it does not currently carry glaciers. Volcanic activity took place during the Pleistocene epoch and the last eruption was 250,000 years ago; since then Uturuncu has not erupted but active fumaroles occur in the summit region, between the two summits.
Nevado del Ruiz (Spanish pronunciation:[neβaðoðelˈrwis]), also known as La Mesa de Herveo (English: Mesa of Herveo, the name of the nearby town) is a volcano on the border of the departments of Caldas and Tolima in Colombia, being the highest point of both. It is located about 130 km (81 mi) west of the capital city Bogotá. It is a stratovolcano composed of many layers of lava alternating with hardened volcanic ash and other pyroclastic rocks. Volcanic activity at Nevado del Ruiz began about two million years ago, during the Early Pleistocene or Late Pliocene, with three major eruptive periods. The current volcanic cone formed during the present eruptive period, which began 150,000 years ago.
The volcano usually generates Vulcanian to Plinian eruptions, which produce swift-moving currents of hot gas and rock called pyroclastic flows. These eruptions often cause massive lahars (mud and debris flows), which pose a threat to human life and the environment. The impact of such an eruption is increased as the hot gas and lava melt the mountain's snowcap, adding large quantities of water to the flow. On November 13, 1985, a small eruption produced an enormous lahar that buried and destroyed the town of Armero in Tolima, causing an estimated 25,000 deaths. This event later became known as the Armero tragedy—the deadliest lahar in recorded history. Similar but less deadly incidents occurred in 1595 and 1845, consisting of a small explosive eruption followed by a large lahar. (Full article...)
Buildings from most of the architectural periods of the United Kingdom can be seen throughout Bristol. Parts of the fortified city and castle date back to the medieval era, as do some churches dating from the 12th century onwards. Outside the historical city centre there are several large Tudor mansions built for wealthy merchants. Almshouses and public houses of the same period survive, intermingled with areas of more recent development. Several Georgian-era squares were laid out for the enjoyment of the middle class. As the city grew, it merged with its surrounding villages, each with its own character and centre, often clustered around a parish church. (Full article...)
The terrain complicated battle tactics for both sides, but the Russians and the Austrians, having arrived in the area first, were able to overcome many of its difficulties by strengthening a causeway between two small ponds. They had also devised a solution to Frederick's deadly modus operandi, the oblique order. Although Frederick's troops initially gained the upper hand in the battle, his limited scouting, combined with the strong defensive preparations of the Allied troops, gave the Russians and Austrians an advantage. By afternoon, when the combatants were exhausted, fresh Austrian troops thrown into the fray secured the Allied victory. (Full article...)
The sinusoidal projection is a pseudocylindrical equal-areamap projection. Used as early as the 16th century, this projection shows distances accurately along the central meridian and the equator; areas furthest from these lines are the most distorted.
The Aitoff projection is a modified azimuthal map projection first proposed by David A. Aitoff in 1889. Based on the equatorial form of the azimuthal equidistant projection, Aitoff halved longitudes from the central meridian, projected by the azimuthal equidistant, and then stretched the result horizontally into a 2:1 ellipse.
Author: John Mitchell; scan: Library of Congress, Geography and Map Division.
The Mitchell Map is the most comprehensive map of eastern North America made during the colonial era. Measuring about 6.5 ft (2.0 m) wide by 4.5 ft (1.4 m) high, it was produced by John Mitchell in 1757 in eight separate sheets. The map was used during the Treaty of Paris for defining the boundaries of the United States, and remains important today for resolving border disputes.
An 18th century map of the Iberian Peninsula illustrating various topographic features of the land. The Iberian Peninsula, or Iberia, is located in the extreme southwest of Europe, and includes modern day Spain, Portugal, Gibraltar and Andorra.
A composite satellite image of the geography of Africa, the Earth's second-largest continent, and its adjacent islands. Separated from Europe by the Mediterranean Sea and from much of Asia by the Red Sea, Africa is joined to Asia at its northeast extremity by the Isthmus of Suez. For geopolitical purposes, the Sinai Peninsula – east of the Suez Canal – is often considered part of Africa, although geographically it belongs in Asia. Africa can be divided into a number of geographic zones: The Atlas Mountains in the north, the Sahara, the coastal plains, and the inner plateaus.
The equirectangular projection is a simple map projection attributed to Marinus of Tyre, who Ptolemy claims invented the projection about AD 100. The projection maps meridians to vertical straight lines of constant spacing, and circles of latitude to horizontal straight lines of constant spacing. The projection is neither equal area nor conformal. Because of the distortions introduced by this projection, it has few applications beyond base imagery to be reprojected to some more useful projection.
Typhoon Noru was the second-longest lasting tropical cyclone of the northwest Pacific Ocean on record. The fifth named storm of the 2017 Pacific typhoon season, it formed on July 19 and reached peak intensity on July 31 with 175 km/h (110 mph) 10-minute sustained winds. By this time, as shown in this satellite image, the typhoon was located south of Iwo Jima, and had taken on annular characteristics, with a symmetric ring of deep convection surrounding a 30 km (19 mi) well defined eye and fairly uniform cloud top temperatures. Traveling northwestward over an area of low ocean heat content, the eye became enlarged and ragged as the system weakened. By the time Noru made landfall over Wakayama Prefecture, Japan, on August 7, it had been downgraded to a severe tropical storm. It then dissipated over the Sea of Japan on August 9 as an extratropical cyclone.
Richard Hakluyt (/ˈhæklʊt,ˈhæklət,ˈhækəlwɪt/; 1553 – 23 November 1616) was an English writer. He is known for promoting the English colonization of North America through his works, notably Divers Voyages Touching the Discoverie of America (1582) and The Principal Navigations, Voyages, Traffiques and Discoveries of the English Nation (1589–1600).
A map of the United States showing its 50 states, federal district and five inhabited territories. Alaska, Hawaii, and the territories are shown at different scales, and the Aleutian Islands and the uninhabited northwestern Hawaiian Islands are omitted from the map. The United States of America is a federal republic consisting of 50 states, a federal district (Washington, D.C., the capital city of the United States), five major territories, and various minor islands. Both the states and the United States as a whole are each sovereign jurisdictions. The Tenth Amendment to the United States Constitution allows states to exercise all powers of government not delegated to the federal government. Each state has its own constitution and government, and all states and their residents are represented in the federal Congress, a bicameral legislature consisting of the Senate and the House of Representatives. Each state elects two senators, while representatives are distributed among the states in proportion to the most recent constitutionally mandated decennial census. Additionally, each state is entitled to select a number of electors to vote in the Electoral College, the body that elects the president of the United States, equal to the total of representatives and senators in Congress from that state. The federal district does not have representatives in the Senate, but has a non-voting delegate in the House, and it is also entitled to electors in the Electoral College. Congress can admit more states, but it cannot create a new state from territory of an existing state or merge two or more states into one without the consent of all states involved, and each new state is admitted on an equal footing with the existing states. (Full article...)
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Generation Z (often shortened to Gen Z), also known as Zoomers, is the demographiccohort succeeding Millennials and preceding Generation Alpha. Researchers and popular media use the mid-to-late 1990s as starting birth years and the early 2010s as ending birth years, with the generation most frequently being defined as people born from 1997 to 2012. Most members of Generation Z are the children of younger baby boomers or Generation X. (Full article...)
Dymaxion map of the world with the 30 largest countries and territories by area This is a list of the world's countries and their dependencies by land, water, and total area, ranked by total area. (Full article...)
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Generation X (often shortened to Gen X) is the demographiccohort following the Baby Boomers and preceding Millennials. Researchers and popular media often use the mid-1960s as its starting birth years and the late 1970s as its ending birth years, with the generation being generally defined as people born from 1965 to 1980. By this definition and U.S. Census data, there are 65.2 million Gen Xers in the United States as of 2019. Most of Generation X are the children of the Silent Generation and early Baby Boomers; Xers are also often the parents of Millennials and Generation Z. (Full article...)
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Map: Strebe, using GeocartThe Winkel tripel projection is a modified azimuthal map projection proposed by Oswald Winkel in 1921. The arithmetic mean of the equirectangular projection and the Aitoff projection, it was intended as a compromise between minimizing three kinds of distortion: area, direction and distance.
Map: Strebe, using GeocartThe sinusoidal projection is a pseudocylindrical equal-area map projection. Used as early as the 16th century, this projection shows distances accurately along the central meridian and the equator; areas furthest from these lines are the most distorted.
Credit: Martin WaldseemüllerThe Waldseemüller map is a map drawn by German cartographer Martin Waldseemüller originally published in April 1507. It was one of the first maps to chart latitude and longitude precisely, the first map to use the name "America", and the first to depict the Americas as separate from Asia.
The geography of Australia, the world's smallest continent, encompasses a wide variety of biogeographic regions. By surface area, it is the sixth-largest country in the world, but as can be seen in this composite satellite image, much of the interior is arid desert. The vast majority of the human population is concentrated along the eastern and southeastern coasts, and it is the fiftieth most populous nation.
Map: Strebe, using GeocartThe Aitoff projection is a modified azimuthal map projection first proposed by David A. Aitoff in 1889. Based on the equatorial form of the azimuthal equidistant projection, Aitoff halved longitudes from the central meridian, projected by the azimuthal equidistant, and then stretched the result horizontally into a 2:1 ellipse.
Map: Strebe, using GeocartThe Littrow projection, created by Joseph Johann Littrow in 1838, is a conformal retroazimuthal map projection. It allows direct measurement of the azimuth from any point on the map to the center.
Map: Strebe, using GeocartThe Chamberlin trimetric projection is a map projection where three points are fixed on the globe and the points on the sphere are mapped onto a plane by triangulation. It was developed in 1946 by Wellman Chamberlin for the National Geographic Society. It is neither conformal nor equal-area, but rather attempts to minimize distortion of distances everywhere with the side-effect of balancing between areal equivalence and conformality.
Map: Strebe, using GeocartThe Craig retroazimuthal is a modified cylindrical map projection created by James Ireland Craig in 1909. It preserves the direction from any place to one other, predetermined place while avoiding some of the distortion of the Hammer retroazimuthal projection. This projection is sometimes known as the Mecca projection because Craig, who had worked in Egypt as a cartographer, created it to help Muslims find the qibla.
Author: John Mitchell; scan: Library of Congress, Geography and Map Division.The Mitchell Map is the most comprehensive map of eastern North America made during the colonial era. Measuring about 6.5 ft (2.0 m) wide by 4.5 ft (1.4 m) high, it was produced by John Mitchell in 1757 in eight separate sheets. The map was used during the Treaty of Paris for defining the boundaries of the United States, and remains important today for resolving border disputes.
Map credit: Robert WilkinsonAn 18th century map of the Iberian Peninsula illustrating various topographic features of the land. The Iberian Peninsula, or Iberia, is located in the extreme southwest of Europe, and includes modern day Spain, Portugal, Gibraltar and Andorra.
Photo: NASAA composite satellite image of the geography of Africa, the Earth's second-largest continent, and its adjacent islands. Separated from Europe by the Mediterranean Sea and from much of Asia by the Red Sea, Africa is joined to Asia at its northeast extremity by the Isthmus of Suez. For geopolitical purposes, the Sinai Peninsula – east of the Suez Canal – is often considered part of Africa, although geographically it belongs in Asia. Africa can be divided into a number of geographic zones: The Atlas Mountains in the north, the Sahara, the coastal plains, and the inner plateaus.
Photo: NASAA composite satellite image of the continent of North America in orthographic projection. North America occupies the northern portion of the landmass generally known as the Americas, with its southern border at the Darién watershed along the Colombia–Panama border. The vast majority of North America rests on the North American Plate, while small parts of California and western Mexico rest on the Pacific Plate; Central America and the Caribbean islands rest on the Caribbean Plate.
Photo credit: Luca GaluzziThe north face of Mount Everest, as seen from Tibet. Everest is the highest mountain on Earth, as measured by the height of its summit above sea level, which is 8,848 metres (29,029 ft). In 1865, Everest was given its official English name by the Royal Geographical Society upon recommendation of Andrew Waugh, the British Surveyor General of India at the time.
Map: Strebe, using GeocartThe equirectangular projection is a simple map projection attributed to Marinus of Tyre, who Ptolemy claims invented the projection about AD 100. The projection maps meridians to vertical straight lines of constant spacing, and circles of latitude to horizontal straight lines of constant spacing. The projection is neither equal area nor conformal. Because of the distortions introduced by this projection, it has few applications beyond base imagery to be reprojected to some more useful projection.
Typhoon Noru was the second-longest lasting tropical cyclone of the northwest Pacific Ocean on record. The fifth named storm of the 2017 Pacific typhoon season, it formed on July 19 and reached peak intensity on July 31 with 175 km/h (110 mph) 10-minute sustained winds. By this time, as shown in this satellite image, the typhoon was located south of Iwo Jima, and had taken on annular characteristics, with a symmetric ring of deep convection surrounding a 30 km (19 mi) well defined eye and fairly uniform cloud top temperatures. Traveling northwestward over an area of low ocean heat content, the eye became enlarged and ragged as the system weakened. By the time Noru made landfall over Wakayama Prefecture, Japan, on August 7, it had been downgraded to a severe tropical storm. It then dissipated over the Sea of Japan on August 9 as an extratropical cyclone.
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