Portal:Geography
The Geography Portal
Geography (from Ancient Greek γεωγραφία geōgraphía; 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...)
Johnson Creek is a 25-mile (40 km) tributary of the Willamette River in the Portland metropolitan area of the U.S. state of Oregon. Part of the drainage basin of the Columbia River, its catchment consists of 54 square miles (140 km) of mostly urban land occupied by about 180,000 people as of 2012. Passing through the cities of Gresham, Portland, and Milwaukie, the creek flows generally west from the foothills of the Cascade Range through sediments deposited by glacial floods on a substrate of basalt. Though polluted, it is free-flowing along its main stem and provides habitat for salmon and other migrating fish.
Prior to European settlement, the watershed was heavily forested and was used by Native Americans of the Chinook band for fishing and hunting. In the 19th century, non-Native American settlers cleared much of the land for farming, and the stream is named for one of these newcomers, William Johnson, who in 1846 built a water-powered sawmill along the creek. By the early 20th century, a rail line parallel to the stream encouraged further residential and commercial development. As urban density increased in the floodplain, seasonal floods grew more damaging. In the 1930s the Works Progress Administration of the federal government lined the lower 15 miles (24 km) of Johnson Creek with rock to control the floods. Despite this, the creek flooded 37 times between 1941 and 2006. Since the 1990s, regional planners have tried to reduce flooding by controlling stormwater runoff, creating stream meanders, reducing erosion, replacing impervious surfaces, and protecting riparian buffers. (Full article...)
Kent is a city in the U.S. state of Ohio and the largest city in Portage County. It is located along the Cuyahoga River in Northeast Ohio on the western edge of the county. The population was 28,215 at the 2020 Census. The city is counted as part of the Akron metropolitan area and the larger Cleveland–Akron–Canton combined statistical area.
Part of the Connecticut Western Reserve, Kent was settled in 1805 and was known for many years as Franklin Mills. Settlers were attracted to the area due to its location along the Cuyahoga River as a place for water-powered mills. Later development came in the 1830s and 1840s as a result of the settlement's position along the route of the Pennsylvania and Ohio Canal. Leading up to the American Civil War, Franklin Mills was noted for its activity in the Underground Railroad. With the decline of the canal and the emergence of the railroad, the town became the home of the Atlantic and Great Western Railroad maintenance shops through the influence of Marvin Kent. In 1864 the town was renamed Kent in honor of and in gratitude for Marvin Kent's efforts. It was incorporated as a village in 1867 and became a city after the 1920 Census. Today Kent is a college town best known as the home of the main campus of Kent State University, founded in 1910, and as the site of the May 4, 1970 Kent State shootings. (Full article...)
The Far Eastern Party was a sledging component of the 1911–1914 Australasian Antarctic expedition, which investigated the previously unexplored coastal regions of Antarctica west of Cape Adare. Led by Douglas Mawson, the party aimed to explore the area far to the east of their main base in Adélie Land, pushing about 500 miles (800 km) towards Victoria Land. Accompanying Mawson were Belgrave Edward Ninnis, a lieutenant in the Royal Fusiliers, and Swiss ski expert Xavier Mertz; the party used sledge dogs to increase their speed across the ice. Initially they made good progress, crossing two huge glaciers on their route south-east.
On 14 December 1912, with the party more than 311 miles (501 km) from the safety of the main base at Cape Denison, Ninnis and the sledge he was walking beside broke through the snow lid of a crevasse and were lost. Their supplies now severely compromised, Mawson and Mertz turned back west, gradually shooting the remaining sledge dogs for food to supplement their scarce rations. As they crossed the first glacier on their return journey Mertz became sick, making progress difficult. After almost a week of making very little headway Mertz died, leaving Mawson to carry on alone. (Full article...)
General Gregor MacGregor (24 December 1786 – 4 December 1845) was a Scottish soldier, adventurer, and confidence trickster who attempted from 1821 to 1837 to draw British and French investors and settlers to "Poyais", a fictional Central American territory that he claimed to rule as "Cazique". Hundreds invested their savings in supposed Poyaisian government bonds and land certificates, while about 250 emigrated to MacGregor's invented country in 1822–23 to find only an untouched jungle; more than half of them died. Seen as a contributory factor to the "Panic of 1825", MacGregor's Poyais scheme has been called one of the most brazen confidence tricks in history.
From the Clan Gregor, MacGregor was an officer in the British Army from 1803 to 1810; he served in the Peninsular War. He joined the republican side in the Venezuelan War of Independence in 1812, quickly became a general and, over the next four years, operated against the Spanish on behalf of both Venezuela and its neighbour New Granada. His successes included a difficult month-long fighting retreat through northern Venezuela in 1816. He captured Amelia Island in 1817 under a mandate from revolutionary agents to conquer Florida from the Spanish, and there proclaimed a short-lived "Republic of the Floridas". He then oversaw two calamitous operations in New Granada during 1819 that each ended with his abandoning British volunteer troops under his command. (Full article...)
Uriel Sebree (February 20, 1848 – August 6, 1922) was a career officer in the United States Navy. He entered the Naval Academy during the Civil War and served until 1910, retiring as a rear admiral. He is best remembered for his two expeditions into the Arctic and for serving as acting governor of American Samoa. He was also commander-in-chief of the Pacific Fleet.
After graduating from the U.S. Naval Academy in 1867, Sebree was posted to a number of vessels before being assigned to a rescue mission to find the remaining crew of the missing Polaris expedition in the Navy's first mission to the Arctic. This attempt was only a partial success—the Polaris crew was rescued by a British ship rather than the US Navy—but this led to Sebree's selection eleven years later for a second expedition to the Arctic. That mission to rescue Adolphus Greely and the survivors of the Lady Franklin Bay expedition was a success. Sebree was subsequently appointed as the second acting governor of American Samoa. He served in this position for only a year before returning to the United States. In 1907, he was promoted to rear admiral and given command of the Pathfinder Expedition around the South American coast before being appointed commander of the 2nd Division of the Pacific Fleet and then commander-in-chief of the entire fleet. He retired in 1910 and died in Coronado, California, in 1922. Two geographical features in Alaska—Sebree Peak and Sebree Island—are named for Admiral Sebree. (Full article...)
Limalok (formerly known as Harrie or Harriet) is a Cretaceous-Paleocene guyot/tablemount in the southeastern Marshall Islands, one of a number of seamounts (a type of underwater volcanic mountain) in the Pacific Ocean. It was probably formed by a volcanic hotspot in present-day French Polynesia. Limalok lies southeast of Mili Atoll and Knox Atoll, which rise above sea level, and is joined to each of them through a volcanic ridge. It is located at a depth of 1,255 metres (4,117 ft) and has a summit platform with an area of 636 square kilometres (246 sq mi).
Limalok is formed by basaltic rocks and was probably a shield volcano at first; the Macdonald, Rarotonga, Rurutu and Society hotspots may have been involved in its formation. After volcanic activity ceased, the volcano was eroded and thereby flattened, and a carbonate platform formed on it during the Paleocene and Eocene. These carbonates were chiefly produced by red algae, forming an atoll or atoll-like structure with reefs. (Full article...)
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...)
Everglades National Park is a national park of the United States that protects the southern twenty percent of the original Everglades in Florida. The park is the largest tropical wilderness in the United States and the largest wilderness of any kind east of the Mississippi River. An average of one million people visit the park each year. Everglades is the third-largest national park in the contiguous United States after Death Valley and Yellowstone. UNESCO declared the Everglades & Dry Tortugas Biosphere Reserve in 1976 and listed the park as a World Heritage Site in 1979, and the Ramsar Convention included the park on its list of Wetlands of International Importance in 1987. Everglades is one of only three locations in the world to appear on all three lists.
Most national parks preserve unique geographic features; Everglades National Park was the first created to protect a fragile ecosystem. The Everglades are a network of wetlands and forests fed by a river flowing 0.25 miles (0.40 km) per day out of Lake Okeechobee, southwest into Florida Bay. The park is the most significant breeding ground for tropical wading birds in North America and contains the largest mangrove ecosystem in the Western Hemisphere. Thirty-six threatened or protected species inhabit the park, including the Florida panther, the American crocodile, and the West Indian manatee, along with 350 species of birds, 300 species of fresh and saltwater fish, 40 species of mammals, and 50 species of reptiles. The majority of South Florida's fresh water, which is stored in the Biscayne Aquifer, is recharged in the park. (Full article...)
White Deer Hole Creek is a 20.5-mile (33.0 km) tributary of the West Branch Susquehanna River in Clinton, Lycoming and Union counties in the U.S. state of Pennsylvania. A part of the Chesapeake Bay drainage basin, the White Deer Hole Creek watershed drains parts of ten townships. The creek flows east in a valley of the Ridge-and-valley Appalachians, through sandstone, limestone, and shale from the Ordovician, Silurian, and Devonian periods.
As of 2006, the creek and its 67.2-square-mile (174 km) watershed are relatively undeveloped, with 28.4 percent of the watershed given to agriculture and 71.6 percent covered by forest, including part of Tiadaghton State Forest. The western part of White Deer Hole Creek has very high water quality and is the only major creek section in Lycoming County classified as Class A Wild Trout Waters, defined by the Pennsylvania Fish and Boat Commission as "streams which support a population of naturally produced trout of sufficient size and abundance to support a long-term and rewarding sport fishery." The rest of the creek and its major tributary (Spring Creek) are kept stocked. There are opportunities in the watershed for canoeing, hunting, and camping, and trails for hiking and horseback riding. (Full article...)